texstore.c revision a1503b00f863a48a517939a42d512f9cfe77f79c
1a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul/* $Id: texstore.c,v 1.32 2001/07/16 15:54:23 brianp Exp $ */ 28e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 38e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 48e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Mesa 3-D graphics library 58e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Version: 3.5 68e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 78e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. 88e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 98e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Permission is hereby granted, free of charge, to any person obtaining a 108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * copy of this software and associated documentation files (the "Software"), 118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * to deal in the Software without restriction, including without limitation 128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * the rights to use, copy, modify, merge, publish, distribute, sublicense, 138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * and/or sell copies of the Software, and to permit persons to whom the 148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Software is furnished to do so, subject to the following conditions: 158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The above copyright notice and this permission notice shall be included 178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * in all copies or substantial portions of the Software. 188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Authors: 298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Brian Paul 308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 32e75d2424e53d6023f4414e40694cd467e5392b96Brian Paul#include "colormac.h" 338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "context.h" 348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "convolve.h" 358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "image.h" 368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "macros.h" 378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "mem.h" 38371ef9c058b0d59bfb62689b64af1b29a2214d9eGareth Hughes#include "texformat.h" 398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "teximage.h" 408e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "texstore.h" 417d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul#include "texutil.h" 428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Given an internal texture format enum or 1, 2, 3, 4 return the 468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * corresponding _base_ internal format: GL_ALPHA, GL_LUMINANCE, 478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA. Return the 488e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * number of components for the format. Return -1 if invalid enum. 496b406bf09dc18f4d84ccb636d043c990a30da4e1Gareth Hughes * 506b406bf09dc18f4d84ccb636d043c990a30da4e1Gareth Hughes * GH: Do we really need this? We have the number of bytes per texel 516b406bf09dc18f4d84ccb636d043c990a30da4e1Gareth Hughes * in the texture format structures, so why don't we just use that? 528e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulstatic GLint 548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulcomponents_in_intformat( GLint format ) 558e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 568e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul switch (format) { 578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA: 588e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA4: 598e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA8: 608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA12: 618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA16: 628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 1; 638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case 1: 648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE: 658e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE4: 668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE8: 678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE12: 688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE16: 698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 1; 708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case 2: 718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE_ALPHA: 728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE4_ALPHA4: 738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE6_ALPHA2: 748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE8_ALPHA8: 758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE12_ALPHA4: 768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE12_ALPHA12: 778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE16_ALPHA16: 788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 2; 798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY: 808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY4: 818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY8: 828e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY12: 838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY16: 848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 1; 858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case 3: 868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB: 878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_R3_G3_B2: 888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB4: 898e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB5: 908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB8: 918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB10: 928e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB12: 938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB16: 948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 3; 958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case 4: 968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA: 978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA2: 988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA4: 998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB5_A1: 1008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA8: 1018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB10_A2: 1028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA12: 1038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA16: 1048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 4; 1058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX: 1068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX1_EXT: 1078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX2_EXT: 1088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX4_EXT: 1098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX8_EXT: 1108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX12_EXT: 1118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX16_EXT: 1128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 1; 113f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul case GL_DEPTH_COMPONENT: 114f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul case GL_DEPTH_COMPONENT16_SGIX: 115f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul case GL_DEPTH_COMPONENT24_SGIX: 116f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul case GL_DEPTH_COMPONENT32_SGIX: 117f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul return 1; 1188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul default: 1198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return -1; /* error */ 1208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 1218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 1228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 1258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This function is used to transfer the user's image data into a texture 1268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * image buffer. We handle both full texture images and subtexture images. 1278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * We also take care of all image transfer operations here, including 1288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * convolution, scale/bias, colortables, etc. 1298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 1308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The destination texel channel type is always GLchan. 1318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 1328e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * A hardware driver may use this as a helper routine to unpack and 1338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * apply pixel transfer ops into a temporary image buffer. Then, 1348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * convert the temporary image into the special hardware format. 1358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 1368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Input: 1378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * dimensions - 1, 2, or 3 1388e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * texFormat - GL_LUMINANCE, GL_INTENSITY, GL_LUMINANCE_ALPHA, GL_ALPHA, 1398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_RGB or GL_RGBA 14056671022f97cfbc199a47b3338125431e42030eeBrian Paul * texDestAddr - destination image address 1418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * srcWidth, srcHeight, srcDepth - size (in pixels) of src and dest images 1428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * dstXoffset, dstYoffset, dstZoffset - position to store the image within 1438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * the destination 3D texture 14456671022f97cfbc199a47b3338125431e42030eeBrian Paul * dstRowStride, dstImageStride - dest image strides in bytes 1458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * srcFormat - source image format (GL_ALPHA, GL_RED, GL_RGB, etc) 1468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * srcType - GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT_5_6_5, GL_FLOAT, etc 1478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * srcPacking - describes packing of incoming image. 1481c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * transferOps - mask of pixel transfer operations 1498e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 1507d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paulstatic void 1517d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paultransfer_teximage(GLcontext *ctx, GLuint dimensions, 1527d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLenum texDestFormat, GLvoid *texDestAddr, 1537d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint srcWidth, GLint srcHeight, GLint srcDepth, 1547d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, 1557d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint dstRowStride, GLint dstImageStride, 1567d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLenum srcFormat, GLenum srcType, 1577d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const GLvoid *srcAddr, 1581c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const struct gl_pixelstore_attrib *srcPacking, 1591c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLuint transferOps) 1608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 1618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint texComponents; 1628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(ctx); 1648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dimensions >= 1 && dimensions <= 3); 16556671022f97cfbc199a47b3338125431e42030eeBrian Paul ASSERT(texDestAddr); 1668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcWidth >= 1); 1678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcHeight >= 1); 1688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcDepth >= 1); 1698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstXoffset >= 0); 1708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstYoffset >= 0); 1718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstZoffset >= 0); 1728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstRowStride >= 0); 1738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstImageStride >= 0); 1748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcAddr); 1758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcPacking); 1768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1770299ad753224372c7a6147f598fdad33f576a714Brian Paul texComponents = components_in_intformat(texDestFormat); 1788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* try common 2D texture cases first */ 1801c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (!transferOps && dimensions == 2 && srcType == CHAN_TYPE) { 1818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1820299ad753224372c7a6147f598fdad33f576a714Brian Paul if (srcFormat == texDestFormat) { 1838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* This will cover the common GL_RGB, GL_RGBA, GL_ALPHA, 1848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMINANCE_ALPHA, etc. texture formats. Use memcpy(). 1858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 1868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLchan *src = (const GLchan *) _mesa_image_address( 1878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcPacking, srcAddr, srcWidth, srcHeight, 1888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, 0, 0, 0); 1898e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLint srcRowStride = _mesa_image_row_stride(srcPacking, 1908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcWidth, srcFormat, srcType); 1918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLint widthInBytes = srcWidth * texComponents * sizeof(GLchan); 192a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul GLchan *dst = (GLchan *) texDestAddr 193a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstYoffset * (dstRowStride / sizeof(GLchan)) 194a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstXoffset * texComponents; 1958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (srcRowStride == widthInBytes && dstRowStride == widthInBytes) { 1968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul MEMCPY(dst, src, srcHeight * widthInBytes); 1978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 1988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 1998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint i; 2008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (i = 0; i < srcHeight; i++) { 2018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul MEMCPY(dst, src, widthInBytes); 202a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul src += (srcRowStride / sizeof(GLchan)); 203a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul dst += (dstRowStride / sizeof(GLchan)); 2048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return; /* all done */ 2078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2080299ad753224372c7a6147f598fdad33f576a714Brian Paul else if (srcFormat == GL_RGBA && texDestFormat == GL_RGB) { 2098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* commonly used by Quake */ 2108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLchan *src = (const GLchan *) _mesa_image_address( 2118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcPacking, srcAddr, srcWidth, srcHeight, 2128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, 0, 0, 0); 2138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLint srcRowStride = _mesa_image_row_stride(srcPacking, 2148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcWidth, srcFormat, srcType); 215a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul GLchan *dst = (GLchan *) texDestAddr 216a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstYoffset * (dstRowStride / sizeof(GLchan)) 217a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstXoffset * texComponents; 2188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint i, j; 2198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (i = 0; i < srcHeight; i++) { 2208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLchan *s = src; 2218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLchan *d = dst; 2228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (j = 0; j < srcWidth; j++) { 2238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul *d++ = *s++; /*red*/ 2248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul *d++ = *s++; /*green*/ 2258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul *d++ = *s++; /*blue*/ 2268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul s++; /*alpha*/ 2278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 228a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul src += (srcRowStride / sizeof(GLchan)); 229a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul dst += (dstRowStride / sizeof(GLchan)); 2308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return; /* all done */ 2328e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 2358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* 2368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * General case solutions 2378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 2380299ad753224372c7a6147f598fdad33f576a714Brian Paul if (texDestFormat == GL_COLOR_INDEX) { 2398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* color index texture */ 2401ceda0f84fdfe07951071fdf4fa643d07f09a4d7Brian Paul const GLenum texType = CHAN_TYPE; 2418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint img, row; 24256671022f97cfbc199a47b3338125431e42030eeBrian Paul GLchan *dest = (GLchan *) texDestAddr + dstZoffset * dstImageStride 243a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstYoffset * (dstRowStride / sizeof(GLchan)) 244a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstXoffset * texComponents; 2458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (img = 0; img < srcDepth; img++) { 2468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLchan *destRow = dest; 2478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (row = 0; row < srcHeight; row++) { 2488e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLvoid *src = _mesa_image_address(srcPacking, 2498e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); 2508e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_unpack_index_span(ctx, srcWidth, texType, destRow, 2511c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcType, src, srcPacking, transferOps); 252a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul destRow += (dstRowStride / sizeof(GLchan)); 2538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dest += dstImageStride; 2558e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2568e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2570299ad753224372c7a6147f598fdad33f576a714Brian Paul else if (texDestFormat == GL_DEPTH_COMPONENT) { 258f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul /* Depth texture (shadow maps) */ 259f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul GLint img, row; 26056671022f97cfbc199a47b3338125431e42030eeBrian Paul GLubyte *dest = (GLubyte *) texDestAddr 26156671022f97cfbc199a47b3338125431e42030eeBrian Paul + dstZoffset * dstImageStride 262a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstYoffset * (dstRowStride / sizeof(GLchan)) 263f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul + dstXoffset * texComponents; 264f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul for (img = 0; img < srcDepth; img++) { 26556671022f97cfbc199a47b3338125431e42030eeBrian Paul GLubyte *destRow = dest; 266f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul for (row = 0; row < srcHeight; row++) { 267f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul const GLvoid *src = _mesa_image_address(srcPacking, 268f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); 26956671022f97cfbc199a47b3338125431e42030eeBrian Paul _mesa_unpack_depth_span(ctx, srcWidth, (GLfloat *) destRow, 270e75d2424e53d6023f4414e40694cd467e5392b96Brian Paul srcType, src, srcPacking); 271a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul destRow += (dstRowStride / sizeof(GLchan)); 272f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul } 273f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul dest += dstImageStride; 274f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul } 275f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul } 2768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 2778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* regular, color texture */ 2788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if ((dimensions == 1 && ctx->Pixel.Convolution1DEnabled) || 2798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (dimensions >= 2 && ctx->Pixel.Convolution2DEnabled) || 2808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (dimensions >= 2 && ctx->Pixel.Separable2DEnabled)) { 2818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* 2828e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Fill texture image with convolution 2838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 2848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint img, row; 2858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint convWidth = srcWidth, convHeight = srcHeight; 2868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLfloat *tmpImage, *convImage; 2878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul tmpImage = (GLfloat *) MALLOC(srcWidth * srcHeight * 4 * sizeof(GLfloat)); 2888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (!tmpImage) { 28908836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 2908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return; 2918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2928e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul convImage = (GLfloat *) MALLOC(srcWidth * srcHeight * 4 * sizeof(GLfloat)); 2938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (!convImage) { 29408836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 2958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul FREE(tmpImage); 2968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return; 2978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 2998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (img = 0; img < srcDepth; img++) { 3008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLfloat *srcf; 3018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLfloat *dstf = tmpImage; 3028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLchan *dest; 3038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* unpack and do transfer ops up to convolution */ 3058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (row = 0; row < srcHeight; row++) { 3068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLvoid *src = _mesa_image_address(srcPacking, 3078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcAddr, srcWidth, srcHeight, 3088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, img, row, 0); 3098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_unpack_float_color_span(ctx, srcWidth, GL_RGBA, dstf, 3108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, src, srcPacking, 3111c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transferOps & IMAGE_PRE_CONVOLUTION_BITS, 3128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GL_TRUE); 3138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dstf += srcWidth * 4; 3148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* convolve */ 3178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (dimensions == 1) { 3188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(ctx->Pixel.Convolution1DEnabled); 3198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_convolve_1d_image(ctx, &convWidth, tmpImage, convImage); 3208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 3228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (ctx->Pixel.Convolution2DEnabled) { 3238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_convolve_2d_image(ctx, &convWidth, &convHeight, 3248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul tmpImage, convImage); 3258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 3278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(ctx->Pixel.Separable2DEnabled); 3288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_convolve_sep_image(ctx, &convWidth, &convHeight, 3298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul tmpImage, convImage); 3308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3328e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* packing and transfer ops after convolution */ 3348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcf = convImage; 33556671022f97cfbc199a47b3338125431e42030eeBrian Paul dest = (GLchan *) texDestAddr + (dstZoffset + img) * dstImageStride 336a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstYoffset * (dstRowStride / sizeof(GLchan)); 3378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (row = 0; row < convHeight; row++) { 3388e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_pack_float_rgba_span(ctx, convWidth, 3398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (const GLfloat (*)[4]) srcf, 3400299ad753224372c7a6147f598fdad33f576a714Brian Paul texDestFormat, CHAN_TYPE, 3418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dest, &_mesa_native_packing, 3421c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transferOps 3438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul & IMAGE_POST_CONVOLUTION_BITS); 3448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcf += convWidth * 4; 345a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul dest += (dstRowStride / sizeof(GLchan)); 3468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3488e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3498e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul FREE(convImage); 3508e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul FREE(tmpImage); 3518e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3528e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 3538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* 3548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * no convolution 3558e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 3568e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint img, row; 35756671022f97cfbc199a47b3338125431e42030eeBrian Paul GLchan *dest = (GLchan *) texDestAddr + dstZoffset * dstImageStride 358a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstYoffset * (dstRowStride / sizeof(GLchan)) 359a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul + dstXoffset * texComponents; 3608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (img = 0; img < srcDepth; img++) { 3618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLchan *destRow = dest; 3628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (row = 0; row < srcHeight; row++) { 3638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLvoid *srcRow = _mesa_image_address(srcPacking, 3648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcAddr, srcWidth, srcHeight, 3658e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, img, row, 0); 3660299ad753224372c7a6147f598fdad33f576a714Brian Paul _mesa_unpack_chan_color_span(ctx, srcWidth, texDestFormat, 3670299ad753224372c7a6147f598fdad33f576a714Brian Paul destRow, srcFormat, srcType, srcRow, 3681c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcPacking, transferOps); 369a1503b00f863a48a517939a42d512f9cfe77f79cBrian Paul destRow += (dstRowStride / sizeof(GLchan)); 3708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dest += dstImageStride; 3728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 3768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 3807d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * Transfer a texture image from user space to <destAddr> applying all 3817d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * needed image transfer operations and storing the result in the format 3827d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * specified by <dstFormat>. <dstFormat> may be any format from texformat.h. 3837d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * Input: 3841c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * dimensions - 1, 2 or 3 3851c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * baseInternalFormat - base format of the internal texture format 3861c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * specified by the user. This is very important, see below. 3871c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * dstFormat - destination image format 3881c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * dstAddr - destination address 3891c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * srcWidth, srcHeight, srcDepth - size of source iamge 3901c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * dstX/Y/Zoffset - as specified by glTexSubImage 3917d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * dstRowStride - stride between dest rows in bytes 3927d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * dstImagetride - stride between dest images in bytes 3931c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * srcFormat, srcType - incoming image format and datatype 3941c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * srcAddr - source image address 3951c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * srcPacking - packing params of source image 3967d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * 3977d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * XXX this function is a bit more complicated than it should be. If 3987d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * _mesa_convert_texsubimage[123]d could handle any dest/source formats 3997d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * or if transfer_teximage() could store in any MESA_FORMAT_* format, we 4007d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * could simplify things here. 4017d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul */ 4027d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paulvoid 4037d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul_mesa_transfer_teximage(GLcontext *ctx, GLuint dimensions, 4041c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLenum baseInternalFormat, 4057d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const struct gl_texture_format *dstFormat, 4067d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLvoid *dstAddr, 4077d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint srcWidth, GLint srcHeight, GLint srcDepth, 4087d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, 4097d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint dstRowStride, GLint dstImageStride, 4107d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLenum srcFormat, GLenum srcType, 4117d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const GLvoid *srcAddr, 4127d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const struct gl_pixelstore_attrib *srcPacking) 4137d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul{ 4147d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const GLint dstRowStridePixels = dstRowStride / dstFormat->TexelBytes; 4157d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const GLint dstImageStridePixels = dstImageStride / dstFormat->TexelBytes; 4167d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLboolean makeTemp; 4171c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLuint transferOps = ctx->_ImageTransferState; 4181c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLboolean freeSourceData = GL_FALSE; 4191c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLint postConvWidth = srcWidth, postConvHeight = srcHeight; 4201c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 421e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(baseInternalFormat > 0); 422e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul 4231c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (transferOps & IMAGE_CONVOLUTION_BIT) { 4241c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_adjust_image_for_convolution(ctx, dimensions, &postConvWidth, 4251c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul &postConvHeight); 4261c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul } 4271c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 4281c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul /* 4291c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * Consider this scenario: The user's source image is GL_RGB and the 4301c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * requested internal format is GL_LUMINANCE. Now suppose the device 4311c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * driver doesn't support GL_LUMINANCE and instead uses RGB16 as the 4321c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * texture format. In that case we still need to do an intermediate 4331c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * conversion to luminance format so that the incoming red channel gets 4341c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * replicated into the dest red, green and blue channels. The following 4351c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * code takes care of that. 4361c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul */ 4371c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (dstFormat->BaseFormat != baseInternalFormat) { 4381c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul /* Allocate storage for temporary image in the baseInternalFormat */ 4391c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const GLint texelSize = _mesa_components_in_format(baseInternalFormat) 4401c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * sizeof(GLchan); 4411c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const GLint bytes = texelSize * postConvWidth * postConvHeight *srcDepth; 4421c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const GLint tmpRowStride = texelSize * postConvWidth; 4431c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const GLint tmpImgStride = texelSize * postConvWidth * postConvHeight; 4441c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLvoid *tmpImage = MALLOC(bytes); 4451c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (!tmpImage) 4461c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul return; 4471c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transfer_teximage(ctx, dimensions, baseInternalFormat, tmpImage, 4481c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcWidth, srcHeight, srcDepth, 4491c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 0, 0, 0, /* x/y/zoffset */ 4501c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul tmpRowStride, tmpImgStride, 4511c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcFormat, srcType, srcAddr, srcPacking, transferOps); 4521c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 4531c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul /* this is our new source image */ 4541c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcWidth = postConvWidth; 4551c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcHeight = postConvHeight; 4561c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcFormat = baseInternalFormat; 4571c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcType = CHAN_TYPE; 4581c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcAddr = tmpImage; 4591c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcPacking = &_mesa_native_packing; 4601c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul freeSourceData = GL_TRUE; 4611c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transferOps = 0; /* image transfer ops were completed */ 4621c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul } 4637d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 4641c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul /* Let the optimized tex conversion functions take a crack at the 4651c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * image conversion if the dest format is a h/w format. 4661c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul */ 4677d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (_mesa_is_hardware_tex_format(dstFormat)) { 4681c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (transferOps) { 4697d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = GL_TRUE; 4707d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 4717d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 4727d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (dimensions == 1) { 4737d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = !_mesa_convert_texsubimage1d(dstFormat->MesaFormat, 4747d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, 4757d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, 4767d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 4777d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, 4787d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstAddr); 4797d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 4807d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else if (dimensions == 2) { 4817d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = !_mesa_convert_texsubimage2d(dstFormat->MesaFormat, 4827d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, 4837d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, 4847d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStridePixels, 4857d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 4867d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, 4877d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstAddr); 4887d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 4897d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 4907d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(dimensions == 3); 4917d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = !_mesa_convert_texsubimage3d(dstFormat->MesaFormat, 4927d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, dstZoffset, 4937d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, srcDepth, 4947d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStridePixels, dstImageStridePixels, 4957d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 4967d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, dstAddr); 4977d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 4987d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (!makeTemp) { 4997d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* all done! */ 5001c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (freeSourceData) 5011c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul FREE((void *) srcAddr); 5027d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 5037d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5047d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5057d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5067d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 5077d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* software texture format */ 5087d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = GL_FALSE; 5097d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5107d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5117d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (makeTemp) { 5127d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint postConvWidth = srcWidth, postConvHeight = srcHeight; 5137d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLenum tmpFormat; 5147d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLuint tmpComps, tmpTexelSize; 5157d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint tmpRowStride, tmpImageStride; 5167d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLubyte *tmpImage; 5177d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5181c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (transferOps & IMAGE_CONVOLUTION_BIT) { 5197d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul _mesa_adjust_image_for_convolution(ctx, dimensions, &postConvWidth, 5207d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul &postConvHeight); 5217d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5227d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5231c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul tmpFormat = dstFormat->BaseFormat; 5247d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpComps = _mesa_components_in_format(tmpFormat); 52536f3712e85cafef1b038189678030f6ef4f8b7e9Brian Paul tmpTexelSize = tmpComps * sizeof(GLchan); 5267d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpRowStride = postConvWidth * tmpTexelSize; 5277d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpImageStride = postConvWidth * postConvHeight * tmpTexelSize; 5287d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpImage = (GLubyte *) MALLOC(postConvWidth * postConvHeight * 5297d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcDepth * tmpTexelSize); 5301c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (!tmpImage) { 5311c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (freeSourceData) 5321c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul FREE((void *) srcAddr); 5337d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 5341c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul } 5357d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5367d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul transfer_teximage(ctx, dimensions, tmpFormat, tmpImage, 5377d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, srcDepth, 5387d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 0, 0, 0, /* x/y/zoffset */ 5397d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpRowStride, tmpImageStride, 5401c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcFormat, srcType, srcAddr, srcPacking, transferOps); 5411c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 5421c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (freeSourceData) 5431c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul FREE((void *) srcAddr); 5447d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5457d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* the temp image is our new source image */ 5467d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth = postConvWidth; 5477d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcHeight = postConvHeight; 5487d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat = tmpFormat; 5497d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcType = CHAN_TYPE; 5507d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcAddr = tmpImage; 5517d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking = &_mesa_native_packing; 5521c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul freeSourceData = GL_TRUE; 5537d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5547d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5557d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (_mesa_is_hardware_tex_format(dstFormat)) { 5567d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(makeTemp); 5577d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (dimensions == 1) { 5587d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLboolean b; 5597d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul b = _mesa_convert_texsubimage1d(dstFormat->MesaFormat, 5607d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, 5617d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, 5627d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 5637d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, 5647d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstAddr); 5657d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(b); 5667d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5677d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else if (dimensions == 2) { 5687d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLboolean b; 5697d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul b = _mesa_convert_texsubimage2d(dstFormat->MesaFormat, 5707d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, 5717d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, 5727d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStridePixels, 5737d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 5747d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, 5757d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstAddr); 5767d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(b); 5777d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5787d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 5797d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLboolean b; 5807d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul b = _mesa_convert_texsubimage3d(dstFormat->MesaFormat, 5817d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, dstZoffset, 5827d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, srcDepth, 5837d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStridePixels, dstImageStridePixels, 5847d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 5857d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, dstAddr); 5867d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(b); 5877d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5887d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5897d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 5907d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* software format */ 5917d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(!makeTemp); 5921c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transfer_teximage(ctx, dimensions, dstFormat->BaseFormat, dstAddr, 5937d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, srcDepth, 5947d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, dstZoffset, 5957d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStride, dstImageStride, 5961c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcFormat, srcType, srcAddr, srcPacking, transferOps); 5977d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5981c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 5991c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (freeSourceData) 6001c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul FREE((void *) srcAddr); /* the temp image */ 6017d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul} 6027d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 6037d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 6047d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul/* 6058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexImage1D(). 6068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image type will be GLchan. 6078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY, 6088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA. 6098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 6108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 6118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 6128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_teximage1d(GLcontext *ctx, GLenum target, GLint level, 6138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 6148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint border, 6158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const GLvoid *pixels, 6168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 6178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 6188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 6198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 6208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint postConvWidth = width; 621e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul GLint texelBytes, sizeInBytes; 6228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 6248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL); 6258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 6268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6277d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* choose the texture format */ 6287d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(ctx->Driver.ChooseTextureFormat); 6297d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, 6307d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul internalFormat, format, type); 6317d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(texImage->TexFormat); 6329228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul texImage->FetchTexel = texImage->TexFormat->FetchTexel1D; 6338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 63419d1e432612cf7db797da11793b13a6c1c6aac16Gareth Hughes texelBytes = texImage->TexFormat->TexelBytes; 63519d1e432612cf7db797da11793b13a6c1c6aac16Gareth Hughes 636e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul /* Compute image size, in bytes */ 637e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul if (texImage->IsCompressed) { 638e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(ctx->Driver.CompressedTextureSize); 639e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul sizeInBytes = ctx->Driver.CompressedTextureSize(ctx, texImage); 640e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(sizeInBytes > 0); 641e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul texImage->CompressedSize = sizeInBytes; 642e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul } 643e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul else { 644e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul sizeInBytes = postConvWidth * texelBytes; 645e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul } 646e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul 6478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* allocate memory */ 648e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul texImage->Data = MALLOC(sizeInBytes); 6497d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (!texImage->Data) { 6507d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D"); 6517d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 6527d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 6538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* unpack image, apply transfer ops and store in texImage->Data */ 6551c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 1, _mesa_base_tex_format(ctx, internalFormat), 6561c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 6578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, 1, 1, 0, 0, 0, 6588e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstRowStride */ 6598e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstImageStride */ 6608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 6613893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 6623893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 6633893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 6643893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 6653893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 6663893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 6678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 6688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 6718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexImage2D(). 6728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image type will be GLchan. 6738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY, 6748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA. 6758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 676e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul * NOTE: if real texture compression is supported, this whole function 677e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul * will need to be overridden. 6788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 6798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 6808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_teximage2d(GLcontext *ctx, GLenum target, GLint level, 6818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 6828e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint border, 6838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 6848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 6858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 6868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 6878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 6888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint postConvWidth = width, postConvHeight = height; 689e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul GLint texelBytes, sizeInBytes; 6908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 6928e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, 6938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul &postConvHeight); 6948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 6958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6967d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* choose the texture format */ 6977d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(ctx->Driver.ChooseTextureFormat); 6987d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, 6997d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul internalFormat, format, type); 7007d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(texImage->TexFormat); 7013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texImage->FetchTexel = texImage->TexFormat->FetchTexel2D; 7022c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes 7032c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes texelBytes = texImage->TexFormat->TexelBytes; 7048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 705e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul /* Compute image size, in bytes */ 706e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul if (texImage->IsCompressed) { 707e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(ctx->Driver.CompressedTextureSize); 708e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul sizeInBytes = ctx->Driver.CompressedTextureSize(ctx, texImage); 709e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(sizeInBytes > 0); 710e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul texImage->CompressedSize = sizeInBytes; 711e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul } 712e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul else { 713e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul sizeInBytes = postConvWidth * postConvHeight * texelBytes; 714e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul } 715e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul 7168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* allocate memory */ 717e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul texImage->Data = MALLOC(sizeInBytes); 7187d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (!texImage->Data) { 7197d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); 7207d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 7217d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 7228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* unpack image, apply transfer ops and store in texImage->Data */ 7241c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 2, _mesa_base_tex_format(ctx, internalFormat), 7251c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 7268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, height, 1, 0, 0, 0, 7272c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes texImage->Width * texelBytes, 7288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstImageStride */ 7298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 7303893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 7313893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 7323893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 7333893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 7343893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 7353893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 7368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 7378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7388e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7408e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 7418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexImage3D(). 7428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image type will be GLchan. 7438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY, 7448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA. 7458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 7468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 7478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 7488e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_teximage3d(GLcontext *ctx, GLenum target, GLint level, 7498e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 7508e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint depth, GLint border, 7518e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 7528e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 7538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 7548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 7558e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 756e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul GLint texelBytes, sizeInBytes; 7578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7587d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* choose the texture format */ 7597d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(ctx->Driver.ChooseTextureFormat); 7607d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, 7617d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul internalFormat, format, type); 7627d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(texImage->TexFormat); 7639228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul texImage->FetchTexel = texImage->TexFormat->FetchTexel3D; 7642c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes 765197c526d63e1d4ea96f29eece392cdc389770b38Brian Paul texelBytes = texImage->TexFormat->TexelBytes; 7668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 767e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul /* Compute image size, in bytes */ 768e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul if (texImage->IsCompressed) { 769e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(ctx->Driver.CompressedTextureSize); 770e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul sizeInBytes = ctx->Driver.CompressedTextureSize(ctx, texImage); 771e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(sizeInBytes > 0); 772e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul texImage->CompressedSize = sizeInBytes; 773e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul } 774e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul else { 775e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul sizeInBytes = width * height * depth * texelBytes; 776e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul } 777e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul 7788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* allocate memory */ 779e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul texImage->Data = MALLOC(sizeInBytes); 7807d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (!texImage->Data) { 7817d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D"); 7827d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 7837d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 7848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* unpack image, apply transfer ops and store in texImage->Data */ 7861c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 3, _mesa_base_tex_format(ctx, internalFormat), 7871c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 7888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, height, depth, 0, 0, 0, 7892c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes texImage->Width * texelBytes, 7902c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes texImage->Width * texImage->Height * texelBytes, 7918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 7923893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 7933893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 7943893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 7953893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 7963893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 7973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 7988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 7998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 8048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexSubImage1D(). 8058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 8078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_texsubimage1d(GLcontext *ctx, GLenum target, GLint level, 8088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint xoffset, GLint width, 8098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 8108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 8118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 8128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 8138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 8141c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 1, 8151c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_base_tex_format(ctx, texImage->IntFormat), 8161c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 8178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, 1, 1, /* src size */ 8188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul xoffset, 0, 0, /* dest offsets */ 8198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstRowStride */ 8208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstImageStride */ 8218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 8223893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 8233893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 8243893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 8253893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 8263893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 8273893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 8288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 8298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 8328e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexSubImage2D(). 8338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 8358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_texsubimage2d(GLcontext *ctx, GLenum target, GLint level, 8368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint xoffset, GLint yoffset, 8378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, 8388e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 8398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 8408e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 8418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 8428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 8431c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 2, 8441c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_base_tex_format(ctx, texImage->IntFormat), 8451c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 8468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, height, 1, /* src size */ 8478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul xoffset, yoffset, 0, /* dest offsets */ 84838f28665bf9fb5b2464738ca5074848ec2777ae1Gareth Hughes texImage->Width * texImage->TexFormat->TexelBytes, 8498e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstImageStride */ 8508e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 8513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 8523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 8533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 8543893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 8553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 8563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 8578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 8588e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8598e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 8618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexSubImage3D(). 8628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 8648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_texsubimage3d(GLcontext *ctx, GLenum target, GLint level, 8658e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint xoffset, GLint yoffset, GLint zoffset, 8668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint depth, 8678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 8688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 8698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 8708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 8718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 87238f28665bf9fb5b2464738ca5074848ec2777ae1Gareth Hughes const GLint texelBytes = texImage->TexFormat->TexelBytes; 8731c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 3, 8741c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_base_tex_format(ctx, texImage->IntFormat), 8751c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 8768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, height, depth, /* src size */ 8778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul xoffset, yoffset, xoffset, /* dest offsets */ 87838f28665bf9fb5b2464738ca5074848ec2777ae1Gareth Hughes texImage->Width * texelBytes, 87938f28665bf9fb5b2464738ca5074848ec2777ae1Gareth Hughes texImage->Width * texImage->Height * texelBytes, 8808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 8813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 8823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 8833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 8843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 8853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 8868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 8878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8898e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8902aadbf41dfd4f63c6118d0ad2d8659d289cbe454Brian Paul 8912aadbf41dfd4f63c6118d0ad2d8659d289cbe454Brian Paul/* 8928e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Fallback for Driver.CompressedTexImage1D() 8938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 8958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_compressed_teximage1d(GLcontext *ctx, GLenum target, GLint level, 8968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 8978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint border, 8988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLsizei imageSize, const GLvoid *data, 8998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 9008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 9018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 9028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* Nothing here. 9038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The device driver has to do it all. 9048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 9068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 9108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Fallback for Driver.CompressedTexImage2D() 9118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 9138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_compressed_teximage2d(GLcontext *ctx, GLenum target, GLint level, 9148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 9158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint border, 9168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLsizei imageSize, const GLvoid *data, 9178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 9188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 9198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 9208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* Nothing here. 9218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The device driver has to do it all. 9228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 9248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 9288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Fallback for Driver.CompressedTexImage3D() 9298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 9318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_compressed_teximage3d(GLcontext *ctx, GLenum target, GLint level, 9328e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 9338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint depth, 9348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint border, 9358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLsizei imageSize, const GLvoid *data, 9368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 9378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 9388e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 9398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* Nothing here. 9408e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The device driver has to do it all. 9418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 9438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 947e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul * Fallback for Driver.GetCompressedTexImage3D() 948e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul * This will probably work find for hardware drivers. That is, hardware 949e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul * drivers won't have to override this function, unless the compressed 950e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul * texture must first be fetched from the TRAM. 951e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul */ 952e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paulvoid 953e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul_mesa_get_compressed_teximage(GLcontext *ctx, GLenum target, 954e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul GLint level, void *image, 955e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul const struct gl_texture_object *texObj, 956e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul struct gl_texture_image *texImage) 957e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul{ 958e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(texImage->IsCompressed); 959e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul assert(texImage->CompressedSize > 0); 960e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul MEMCPY(image, texImage->Data, texImage->CompressedSize); 961e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul} 962e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul 963e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul 964e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul 965e4276667dafc8de0c6e64af8300fc7598437de6eBrian Paul/* 9668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the fallback for Driver.TestProxyTexImage(). 9678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9688e39ad2cd67d49be40ff0822f3269affdf83d601Brian PaulGLboolean 9698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, 9708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, GLenum format, GLenum type, 9718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint depth, GLint border) 9728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 9738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_unit *texUnit; 9748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj; 9758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage; 9768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (void) format; 9788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (void) type; 9798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 9818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul texObj = _mesa_select_tex_object(ctx, texUnit, target); 9828e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul texImage = _mesa_select_tex_image(ctx, texUnit, target, level); 9838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* We always pass. 9858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The core Mesa code will have already tested the image size, etc. 9869228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * If a driver has more stringent texture limits to enforce it will 9878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * have to override this function. 9888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9897d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* choose the texture format */ 9907d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(ctx->Driver.ChooseTextureFormat); 9917d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, 9927d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul internalFormat, format, type); 9937d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(texImage->TexFormat); 9948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return GL_TRUE; 9968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 9973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 9983893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 9993893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 10003893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul/* 10013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * Average together two rows of a source image to produce a single new 10023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * row in the dest image. It's legal for the two source rows to point 10039228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * to the same data. The source width must be equal to either the 10049228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * dest width or two times the dest width. 10053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul */ 10063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulstatic void 10079228e17bb5bf219269daeed5cbfdd912c118e926Brian Pauldo_row(const struct gl_texture_format *format, GLint srcWidth, 10089228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLvoid *srcRowA, const GLvoid *srcRowB, 10099228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLint dstWidth, GLvoid *dstRow) 10103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 10119228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1; 10129228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2; 10139228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 10149228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul assert(srcWidth == dstWidth || srcWidth == 2 * dstWidth); 10159228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 10163893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul switch (format->MesaFormat) { 10173893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_RGBA: 10183893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul { 10199228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 10203893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowA)[4] = (const GLchan (*)[4]) srcRowA; 10213893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowB)[4] = (const GLchan (*)[4]) srcRowB; 10223893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLchan (*dst)[4] = (GLchan (*)[4]) dstRow; 10239228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 10249228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 10259228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][0] = (rowA[j][0] + rowA[k][0] + 1026f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][0] + rowB[k][0]) / 4; 10279228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][1] = (rowA[j][1] + rowA[k][1] + 1028f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][1] + rowB[k][1]) / 4; 10299228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][2] = (rowA[j][2] + rowA[k][2] + 1030f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][2] + rowB[k][2]) / 4; 10319228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][3] = (rowA[j][3] + rowA[k][3] + 1032f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][3] + rowB[k][3]) / 4; 10333893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10343893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10353893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 10363893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_RGB: 10373893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul { 10389228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 10393893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowA)[3] = (const GLchan (*)[3]) srcRowA; 10403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowB)[3] = (const GLchan (*)[3]) srcRowB; 10413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLchan (*dst)[3] = (GLchan (*)[3]) dstRow; 10429228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 10439228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 10449228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][0] = (rowA[j][0] + rowA[k][0] + 1045f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][0] + rowB[k][0]) / 4; 10469228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][1] = (rowA[j][1] + rowA[k][1] + 1047f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][1] + rowB[k][1]) / 4; 10489228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][2] = (rowA[j][2] + rowA[k][2] + 1049f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][2] + rowB[k][2]) / 4; 10503893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 10533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_ALPHA: 10543893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_LUMINANCE: 10553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_INTENSITY: 10563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_COLOR_INDEX: 10573893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul { 10589228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 10593893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan *rowA = (const GLchan *) srcRowA; 10603893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan *rowB = (const GLchan *) srcRowB; 10613893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLchan *dst = (GLchan *) dstRow; 10629228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 10639228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 1064f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; 10653893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10663893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10673893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 10683893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_LUMINANCE_ALPHA: 10693893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul { 10709228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 10713893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowA)[2] = (const GLchan (*)[2]) srcRowA; 10723893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowB)[2] = (const GLchan (*)[2]) srcRowB; 10733893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLchan (*dst)[2] = (GLchan (*)[2]) dstRow; 10749228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 10759228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 10769228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][0] = (rowA[j][0] + rowA[k][0] + 1077f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][0] + rowB[k][0]) / 4; 10789228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][1] = (rowA[j][1] + rowA[k][1] + 1079f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][1] + rowB[k][1]) / 4; 10803893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 10833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_DEPTH_COMPONENT: 10848bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 10859228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 10868bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLfloat *rowA = (const GLfloat *) srcRowA; 10878bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLfloat *rowB = (const GLfloat *) srcRowB; 10888bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLfloat *dst = (GLfloat *) dstRow; 10899228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 10909228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 10919228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) * 0.25F; 10928bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10938bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10948bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 10958bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul /* Begin hardware formats */ 10968bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_RGBA8888: 10978bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_ARGB8888: 10988bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 10999228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 11008bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowA)[4] = (const GLubyte (*)[4]) srcRowA; 11018bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowB)[4] = (const GLubyte (*)[4]) srcRowB; 11028bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte (*dst)[4] = (GLubyte (*)[4]) dstRow; 11039228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 11049228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 11059228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][0] = (rowA[j][0] + rowA[k][0] + 1106f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][0] + rowB[k][0]) / 4; 11079228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][1] = (rowA[j][1] + rowA[k][1] + 1108f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][1] + rowB[k][1]) / 4; 11099228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][2] = (rowA[j][2] + rowA[k][2] + 1110f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][2] + rowB[k][2]) / 4; 11119228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][3] = (rowA[j][3] + rowA[k][3] + 1112f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][3] + rowB[k][3]) / 4; 11138bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11148bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11158bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 11168bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_RGB888: 11178bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 11189228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 11198bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowA)[3] = (const GLubyte (*)[3]) srcRowA; 11208bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowB)[3] = (const GLubyte (*)[3]) srcRowB; 11218bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte (*dst)[3] = (GLubyte (*)[3]) dstRow; 11229228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 11239228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 11249228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][0] = (rowA[j][0] + rowA[k][0] + 1125f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][0] + rowB[k][0]) / 4; 11269228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][1] = (rowA[j][1] + rowA[k][1] + 1127f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][1] + rowB[k][1]) / 4; 11289228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][2] = (rowA[j][2] + rowA[k][2] + 1129f431a3fb4dc1bf860203d79e54657e3a62bc50dfBrian Paul rowB[j][2] + rowB[k][2]) / 4; 11308bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11318bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11328bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 11338bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_RGB565: 11348bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 11359228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 11368bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowA = (const GLushort *) srcRowA; 11378bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowB = (const GLushort *) srcRowB; 11388bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLushort *dst = (GLushort *) dstRow; 11399228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 11409228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 11419228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAr0 = rowA[j] & 0x1f; 11429228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAr1 = rowA[k] & 0x1f; 11439228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBr0 = rowB[j] & 0x1f; 11449228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBr1 = rowB[k] & 0x1f; 11459228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAg0 = (rowA[j] >> 5) & 0x3f; 11469228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAg1 = (rowA[k] >> 5) & 0x3f; 11479228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBg0 = (rowB[j] >> 5) & 0x3f; 11489228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBg1 = (rowB[k] >> 5) & 0x3f; 11499228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAb0 = (rowA[j] >> 11) & 0x1f; 11509228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAb1 = (rowA[k] >> 11) & 0x1f; 11519228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBb0 = (rowB[j] >> 11) & 0x1f; 11529228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBb1 = (rowB[k] >> 11) & 0x1f; 11538bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4; 11548bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4; 11558bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4; 11568bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (blue << 11) | (green << 5) | red; 11578bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11588bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11598bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 11608bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_ARGB4444: 11618bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 11629228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 11638bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowA = (const GLushort *) srcRowA; 11648bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowB = (const GLushort *) srcRowB; 11658bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLushort *dst = (GLushort *) dstRow; 11669228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 11679228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 11689228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAr0 = rowA[j] & 0xf; 11699228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAr1 = rowA[k] & 0xf; 11709228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBr0 = rowB[j] & 0xf; 11719228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBr1 = rowB[k] & 0xf; 11729228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAg0 = (rowA[j] >> 4) & 0xf; 11739228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAg1 = (rowA[k] >> 4) & 0xf; 11749228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBg0 = (rowB[j] >> 4) & 0xf; 11759228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBg1 = (rowB[k] >> 4) & 0xf; 11769228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAb0 = (rowA[j] >> 8) & 0xf; 11779228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAb1 = (rowA[k] >> 8) & 0xf; 11789228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBb0 = (rowB[j] >> 8) & 0xf; 11799228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBb1 = (rowB[k] >> 8) & 0xf; 11809228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAa0 = (rowA[j] >> 12) & 0xf; 11819228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAa1 = (rowA[k] >> 12) & 0xf; 11829228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBa0 = (rowB[j] >> 12) & 0xf; 11839228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBa1 = (rowB[k] >> 12) & 0xf; 11848bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4; 11858bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4; 11868bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4; 11878bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 4; 11888bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red; 11898bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11908bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11918bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 11928bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_ARGB1555: 11938bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 11949228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 11958bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowA = (const GLushort *) srcRowA; 11968bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowB = (const GLushort *) srcRowB; 11978bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLushort *dst = (GLushort *) dstRow; 11989228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 11999228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 12009228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAr0 = rowA[j] & 0x1f; 12019228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAr1 = rowA[k] & 0x1f; 12029228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBr0 = rowB[j] & 0x1f; 12039228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBr1 = rowB[k] & 0xf; 12049228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAg0 = (rowA[j] >> 5) & 0x1f; 12059228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAg1 = (rowA[k] >> 5) & 0x1f; 12069228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBg0 = (rowB[j] >> 5) & 0x1f; 12079228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBg1 = (rowB[k] >> 5) & 0x1f; 12089228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAb0 = (rowA[j] >> 10) & 0x1f; 12099228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAb1 = (rowA[k] >> 10) & 0x1f; 12109228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBb0 = (rowB[j] >> 10) & 0x1f; 12119228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBb1 = (rowB[k] >> 10) & 0x1f; 12129228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAa0 = (rowA[j] >> 15) & 0x1; 12139228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAa1 = (rowA[k] >> 15) & 0x1; 12149228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBa0 = (rowB[j] >> 15) & 0x1; 12159228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBa1 = (rowB[k] >> 15) & 0x1; 12168bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4; 12178bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4; 12188bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4; 12198bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 4; 12208bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red; 12218bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12228bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12238bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 12248bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_AL88: 12258bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 12269228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 12278bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowA)[2] = (const GLubyte (*)[2]) srcRowA; 12288bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowB)[2] = (const GLubyte (*)[2]) srcRowB; 12298bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte (*dst)[2] = (GLubyte (*)[2]) dstRow; 12309228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 12319228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 12329228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][0] = (rowA[j][0] + rowA[k][0] + 12339228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul rowB[j][0] + rowB[k][0]) >> 2; 12349228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i][1] = (rowA[j][1] + rowA[k][1] + 12359228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul rowB[j][1] + rowB[k][1]) >> 2; 12368bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12378bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12388bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 12398bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_RGB332: 12408bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 12419228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 12428bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte *rowA = (const GLubyte *) srcRowA; 12438bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte *rowB = (const GLubyte *) srcRowB; 12448bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte *dst = (GLubyte *) dstRow; 12459228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 12469228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 12479228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAr0 = rowA[j] & 0x3; 12489228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAr1 = rowA[k] & 0x3; 12499228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBr0 = rowB[j] & 0x3; 12509228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBr1 = rowB[k] & 0x3; 12519228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAg0 = (rowA[j] >> 2) & 0x7; 12529228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAg1 = (rowA[k] >> 2) & 0x7; 12539228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBg0 = (rowB[j] >> 2) & 0x7; 12549228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBg1 = (rowB[k] >> 2) & 0x7; 12559228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAb0 = (rowA[j] >> 5) & 0x7; 12569228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowAb1 = (rowA[k] >> 5) & 0x7; 12579228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBb0 = (rowB[j] >> 5) & 0x7; 12589228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint rowBb1 = (rowB[k] >> 5) & 0x7; 12598bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4; 12608bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4; 12618bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4; 12628bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (blue << 5) | (green << 2) | red; 12638bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12648bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12658bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 12668bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_A8: 12678bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_L8: 12688bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_I8: 12698bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_CI8: 12708bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 12719228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLuint i, j, k; 12728bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte *rowA = (const GLubyte *) srcRowA; 12738bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte *rowB = (const GLubyte *) srcRowB; 12748bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte *dst = (GLubyte *) dstRow; 12759228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (i = j = 0, k = k0; i < dstWidth; 12769228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul i++, j += colStride, k += colStride) { 12779228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) >> 2; 12788bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12798bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12808bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 12813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul default: 12823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_problem(NULL, "bad format in do_row()"); 12833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 12843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 12853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12863893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12879228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul/* 12889228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * These functions generate a 1/2-size mipmap image from a source image. 12899228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * Texture borders are handled by copying or averaging the source image's 12909228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * border texels, depending on the scale-down factor. 12919228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul */ 12923893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12933893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulstatic void 12943893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulmake_1d_mipmap(const struct gl_texture_format *format, GLint border, 12953893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcWidth, const GLubyte *srcPtr, 12963893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint dstWidth, GLubyte *dstPtr) 12973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 12983893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLint bpt = format->TexelBytes; 12993893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLubyte *src; 13003893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLubyte *dst; 13013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* skip the border pixel, if any */ 13033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul src = srcPtr + border * bpt; 13043893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst = dstPtr + border * bpt; 13053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* we just duplicate the input row, kind of hack, saves code */ 13079228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, srcWidth - 2 * border, src, src, 13089228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstWidth - 2 * border, dst); 13093893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (border) { 13113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* copy left-most pixel from source */ 13123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr, srcPtr, bpt); 13133893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* copy right-most pixel from source */ 13143893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr + (dstWidth - 1) * bpt, 13153893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth - 1) * bpt, 13163893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul bpt); 13173893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 13183893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 13193893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13203893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13213893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulstatic void 13223893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulmake_2d_mipmap(const struct gl_texture_format *format, GLint border, 13233893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcWidth, GLint srcHeight, const GLubyte *srcPtr, 13243893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint dstWidth, GLint dstHeight, GLubyte *dstPtr) 13253893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 13263893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLint bpt = format->TexelBytes; 13279228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ 13289228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint dstWidthNB = dstWidth - 2 * border; 13299228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint dstHeightNB = dstHeight - 2 * border; 13303893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLint srcRowStride = bpt * srcWidth; 13313893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLint dstRowStride = bpt * dstWidth; 13323893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLubyte *srcA, *srcB; 13333893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLubyte *dst; 13349228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLint row, colStride; 13359228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 13369228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul colStride = (srcWidth == dstWidth) ? 1 : 2; 13373893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13383893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* Compute src and dst pointers, skipping any border */ 13393893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcA = srcPtr + border * ((srcWidth + 1) * bpt); 13403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (srcHeight > 1) 13413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcB = srcA + srcRowStride; 13423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul else 13433893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcB = srcA; 13443893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst = dstPtr + border * ((dstWidth + 1) * bpt); 13453893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13469228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (row = 0; row < dstHeightNB; row++) { 13479228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, srcWidthNB, srcA, srcB, 13489228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstWidthNB, dst); 13493893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcA += 2 * srcRowStride; 13503893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcB += 2 * srcRowStride; 13513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst += dstRowStride; 13523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 13533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13548bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul /* This is ugly but probably won't be used much */ 13553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (border > 0) { 13563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* fill in dest border */ 13573893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* lower-left border pixel */ 13583893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr, srcPtr, bpt); 13593893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* lower-right border pixel */ 13603893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr + (dstWidth - 1) * bpt, 13613893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth - 1) * bpt, bpt); 13623893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* upper-left border pixel */ 13633893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr + dstWidth * (dstHeight - 1) * bpt, 13643893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + srcWidth * (srcHeight - 1) * bpt, bpt); 13653893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* upper-right border pixel */ 13663893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr + (dstWidth * dstHeight - 1) * bpt, 13673893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth * srcHeight - 1) * bpt, bpt); 13683893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* lower border */ 13699228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, srcWidthNB, 13709228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + bpt, 13719228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + bpt, 13729228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstWidthNB, dstPtr + bpt); 13733893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* upper border */ 13749228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, srcWidthNB, 13753893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, 13763893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, 13779228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstWidthNB, 13783893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstPtr + (dstWidth * (dstHeight - 1) + 1) * bpt); 13793893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* left and right borders */ 13809228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul if (srcHeight == dstHeight) { 13819228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* copy border pixel from src to dst */ 13829228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (row = 1; row < srcHeight; row++) { 13839228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul MEMCPY(dstPtr + dstWidth * row * bpt, 13849228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + srcWidth * row * bpt, bpt); 13859228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul MEMCPY(dstPtr + (dstWidth * row + dstWidth - 1) * bpt, 13869228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + (srcWidth * row + srcWidth - 1) * bpt, bpt); 13879228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul } 13889228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul } 13899228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul else { 13909228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* average two src pixels each dest pixel */ 13919228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (row = 0; row < dstHeightNB; row += 2) { 13929228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, 1, 13939228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + (srcWidth * (row * 2 + 1)) * bpt, 13949228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + (srcWidth * (row * 2 + 2)) * bpt, 13959228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 1, dstPtr + (dstWidth * row + 1) * bpt); 13969228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, 1, 13979228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + (srcWidth * (row * 2 + 1) + srcWidth - 1) * bpt, 13989228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + (srcWidth * (row * 2 + 2) + srcWidth - 1) * bpt, 13999228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 1, dstPtr + (dstWidth * row + 1 + dstWidth - 1) * bpt); 14009228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul } 14013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 14043893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulstatic void 14073893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulmake_3d_mipmap(const struct gl_texture_format *format, GLint border, 14083893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcWidth, GLint srcHeight, GLint srcDepth, 14093893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLubyte *srcPtr, 14103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint dstWidth, GLint dstHeight, GLint dstDepth, 14113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLubyte *dstPtr) 14123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 14139228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint bpt = format->TexelBytes; 14149228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ 14159228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint srcDepthNB = srcDepth - 2 * border; 14169228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint dstWidthNB = dstWidth - 2 * border; 14179228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint dstHeightNB = dstHeight - 2 * border; 14189228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLint dstDepthNB = dstDepth - 2 * border; 14199228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLvoid *tmpRowA, *tmpRowB; 14203893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint img, row; 14219228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLint bytesPerSrcImage, bytesPerDstImage; 14229228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLint bytesPerSrcRow, bytesPerDstRow; 14239228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLint srcImageOffset, srcRowOffset; 14243893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14255c749d9e3c7824c0ba5b22e37d0ea5cbd54d6d2dBrian Paul (void) srcDepthNB; /* silence warnings */ 14265c749d9e3c7824c0ba5b22e37d0ea5cbd54d6d2dBrian Paul 14279228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* Need two temporary row buffers */ 14289228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul tmpRowA = MALLOC(srcWidth * bpt); 14299228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul if (!tmpRowA) 14309228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul return; 14319228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul tmpRowB = MALLOC(srcWidth * bpt); 14329228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul if (!tmpRowB) { 14339228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul FREE(tmpRowA); 14343893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 14353893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14363893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14379228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul bytesPerSrcImage = srcWidth * srcHeight * bpt; 14389228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul bytesPerDstImage = dstWidth * dstHeight * bpt; 14399228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 14409228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul bytesPerSrcRow = srcWidth * bpt; 14419228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul bytesPerDstRow = dstWidth * bpt; 14423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14439228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* Offset between adjacent src images to be averaged together */ 14449228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcImageOffset = (srcDepth == dstDepth) ? 0 : bytesPerSrcImage; 14453893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14469228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* Offset between adjacent src rows to be averaged together */ 14479228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcRowOffset = (srcHeight == dstHeight) ? 0 : srcWidth * bpt; 14483893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14499228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* 14509228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * Need to average together up to 8 src pixels for each dest pixel. 14519228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * Break that down into 3 operations: 14529228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * 1. take two rows from source image and average them together. 14539228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * 2. take two rows from next source image and average them together. 14549228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul * 3. take the two averaged rows and average them for the final dst row. 14559228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul */ 14563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14579228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* 14589228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul printf("mip3d %d x %d x %d -> %d x %d x %d\n", 14599228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcWidth, srcHeight, srcDepth, dstWidth, dstHeight, dstDepth); 14609228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul */ 14619228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 14629228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (img = 0; img < dstDepthNB; img++) { 14639228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* first source image pointer, skipping border */ 14649228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLubyte *imgSrcA = srcPtr 14659228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (bytesPerSrcImage + bytesPerSrcRow + border) * bpt * border 14669228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + img * (bytesPerSrcImage + srcImageOffset); 14679228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* second source image pointer, skipping border */ 14689228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLubyte *imgSrcB = imgSrcA + srcImageOffset; 14699228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* address of the dest image, skipping border */ 14709228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLubyte *imgDst = dstPtr 14719228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (bytesPerDstImage + bytesPerDstRow + border) * bpt * border 14729228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + img * bytesPerDstImage; 14739228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 14749228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* setup the four source row pointers and the dest row pointer */ 14759228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLubyte *srcImgARowA = imgSrcA; 14769228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLubyte *srcImgARowB = imgSrcA + srcRowOffset; 14779228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLubyte *srcImgBRowA = imgSrcB; 14789228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLubyte *srcImgBRowB = imgSrcB + srcRowOffset; 14799228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLubyte *dstImgRow = imgDst; 14809228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 14819228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (row = 0; row < dstHeightNB; row++) { 14829228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* Average together two rows from first src image */ 14839228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, srcWidthNB, srcImgARowA, srcImgARowB, 14849228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcWidthNB, tmpRowA); 14859228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* Average together two rows from second src image */ 14869228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, srcWidthNB, srcImgBRowA, srcImgBRowB, 14879228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcWidthNB, tmpRowB); 14889228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* Average together the temp rows to make the final row */ 14899228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, srcWidthNB, tmpRowA, tmpRowB, 14909228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstWidthNB, dstImgRow); 14919228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* advance to next rows */ 14929228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcImgARowA += bytesPerSrcRow + srcRowOffset; 14939228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcImgARowB += bytesPerSrcRow + srcRowOffset; 14949228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcImgBRowA += bytesPerSrcRow + srcRowOffset; 14959228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcImgBRowB += bytesPerSrcRow + srcRowOffset; 14969228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstImgRow += bytesPerDstRow; 14973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14983893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14993893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 15003893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul FREE(tmpRowA); 15013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul FREE(tmpRowB); 15029228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15039228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* Luckily we can leverage the make_2d_mipmap() function here! */ 15049228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul if (border > 0) { 15059228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do front border image */ 15069228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul make_2d_mipmap(format, 1, srcWidth, srcHeight, srcPtr, 15079228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstWidth, dstHeight, dstPtr); 15089228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do back border image */ 15099228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul make_2d_mipmap(format, 1, srcWidth, srcHeight, 15109228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul srcPtr + bytesPerSrcImage * (srcDepth - 1), 15119228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstWidth, dstHeight, 15129228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dstPtr + bytesPerDstImage * (dstDepth - 1)); 15139228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do four remaining border edges that span the image slices */ 15149228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul if (srcDepth == dstDepth) { 15159228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* just copy border pixels from src to dst */ 15169228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (img = 0; img < dstDepthNB; img++) { 15179228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLubyte *src; 15189228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLubyte *dst; 15199228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15209228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do border along [img][row=0][col=0] */ 15219228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul src = srcPtr + (img + 1) * bytesPerSrcImage; 15229228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst = dstPtr + (img + 1) * bytesPerDstImage; 15239228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul MEMCPY(dst, src, bpt); 15249228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15259228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do border along [img][row=dstHeight-1][col=0] */ 15269228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul src = srcPtr + (img * 2 + 1) * bytesPerSrcImage 15279228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (srcHeight - 1) * bytesPerSrcRow; 15289228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst = dstPtr + (img + 1) * bytesPerDstImage 15299228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (dstHeight - 1) * bytesPerDstRow; 15309228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul MEMCPY(dst, src, bpt); 15319228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15329228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do border along [img][row=0][col=dstWidth-1] */ 15339228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul src = srcPtr + (img * 2 + 1) * bytesPerSrcImage 15349228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (srcWidth - 1) * bpt; 15359228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst = dstPtr + (img + 1) * bytesPerDstImage 15369228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (dstWidth - 1) * bpt; 15379228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul MEMCPY(dst, src, bpt); 15389228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15399228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do border along [img][row=dstHeight-1][col=dstWidth-1] */ 15409228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul src = srcPtr + (img * 2 + 1) * bytesPerSrcImage 15419228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (bytesPerSrcImage - bpt); 15429228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst = dstPtr + (img + 1) * bytesPerDstImage 15439228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (bytesPerDstImage - bpt); 15449228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul MEMCPY(dst, src, bpt); 15459228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul } 15469228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul } 15479228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul else { 15489228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* average border pixels from adjacent src image pairs */ 15499228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul ASSERT(srcDepthNB == 2 * dstDepthNB); 15509228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul for (img = 0; img < dstDepthNB; img++) { 15519228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul const GLubyte *src; 15529228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul GLubyte *dst; 15539228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15549228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do border along [img][row=0][col=0] */ 15559228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul src = srcPtr + (img * 2 + 1) * bytesPerSrcImage; 15569228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst = dstPtr + (img + 1) * bytesPerDstImage; 15579228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, 1, src, src + srcImageOffset, 1, dst); 15589228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15599228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do border along [img][row=dstHeight-1][col=0] */ 15609228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul src = srcPtr + (img * 2 + 1) * bytesPerSrcImage 15619228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (srcHeight - 1) * bytesPerSrcRow; 15629228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst = dstPtr + (img + 1) * bytesPerDstImage 15639228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (dstHeight - 1) * bytesPerDstRow; 15649228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, 1, src, src + srcImageOffset, 1, dst); 15659228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15669228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do border along [img][row=0][col=dstWidth-1] */ 15679228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul src = srcPtr + (img * 2 + 1) * bytesPerSrcImage 15689228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (srcWidth - 1) * bpt; 15699228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst = dstPtr + (img + 1) * bytesPerDstImage 15709228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (dstWidth - 1) * bpt; 15719228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, 1, src, src + srcImageOffset, 1, dst); 15729228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul 15739228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* do border along [img][row=dstHeight-1][col=dstWidth-1] */ 15749228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul src = srcPtr + (img * 2 + 1) * bytesPerSrcImage 15759228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (bytesPerSrcImage - bpt); 15769228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul dst = dstPtr + (img + 1) * bytesPerDstImage 15779228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul + (bytesPerDstImage - bpt); 15789228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul do_row(format, 1, src, src + srcImageOffset, 1, dst); 15799228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul } 15809228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul } 15819228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul } 15823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 15833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 15843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 15853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul/* 15863893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * For GL_SGIX_generate_mipmap: 15873893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * Generate a complete set of mipmaps from texObj's base-level image. 15883893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * Stop at texObj's MaxLevel or when we get to the 1x1 texture. 15893893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul */ 15903893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulvoid 15913893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul_mesa_generate_mipmap(GLcontext *ctx, 15923893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const struct gl_texture_unit *texUnit, 15933893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul struct gl_texture_object *texObj) 15943893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 15953893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum targets1D[] = { GL_TEXTURE_1D, 0 }; 15963893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum targets2D[] = { GL_TEXTURE_2D, 0 }; 15973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum targets3D[] = { GL_TEXTURE_3D, 0 }; 15983893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum targetsCube[] = { GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB, 15993893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB, 16003893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB, 16013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB, 16023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB, 16033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB, 16043893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 0 }; 16053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum *targets; 16063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLuint level; 1607cd1cefae9146fc14b35ee93a04bdb1b1590fba7bBrian Paul GLint maxLevels = 0; 16083893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16093893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(texObj); 16103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(texObj->Image[texObj->BaseLevel]); 16113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul switch (texObj->Dimensions) { 16133893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 1: 16143893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul targets = targets1D; 1615cd1cefae9146fc14b35ee93a04bdb1b1590fba7bBrian Paul maxLevels = ctx->Const.MaxTextureLevels; 16163893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 16173893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 2: 16183893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul targets = targets2D; 1619cd1cefae9146fc14b35ee93a04bdb1b1590fba7bBrian Paul maxLevels = ctx->Const.MaxTextureLevels; 16203893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 16213893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 3: 16223893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul targets = targets3D; 1623cd1cefae9146fc14b35ee93a04bdb1b1590fba7bBrian Paul maxLevels = ctx->Const.Max3DTextureLevels; 16243893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 16253893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 6: 16263893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul targets = targetsCube; 1627cd1cefae9146fc14b35ee93a04bdb1b1590fba7bBrian Paul maxLevels = ctx->Const.MaxCubeTextureLevels; 16283893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 16293893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul default: 16303893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_problem(ctx, 16313893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul "Bad texture object dimension in _mesa_generate_mipmaps"); 16323893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 16333893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16343893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16358bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (level = texObj->BaseLevel; level < texObj->MaxLevel 1636cd1cefae9146fc14b35ee93a04bdb1b1590fba7bBrian Paul && level < maxLevels - 1; level++) { 16379228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul /* generate image[level+1] from image[level] */ 16383893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const struct gl_texture_image *srcImage; 16393893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul struct gl_texture_image *dstImage; 16403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcWidth, srcHeight, srcDepth; 16413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint dstWidth, dstHeight, dstDepth; 16423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint border, bytesPerTexel; 16433893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint t; 16443893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16453893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcImage = texObj->Image[level]; 16463893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(srcImage); 16473893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcWidth = srcImage->Width; 16483893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcHeight = srcImage->Height; 16493893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcDepth = srcImage->Depth; 16503893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul border = srcImage->Border; 16513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul bytesPerTexel = srcImage->TexFormat->TexelBytes; 16523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* compute next (level+1) image size */ 16543893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (srcWidth - 2 * border > 1) { 16553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth = (srcWidth - 2 * border) / 2 + 2 * border; 16563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16573893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul else { 16583893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth = srcWidth; /* can't go smaller */ 16593893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16603893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (srcHeight - 2 * border > 1) { 16613893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstHeight = (srcHeight - 2 * border) / 2 + 2 * border; 16623893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16633893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul else { 16643893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstHeight = srcHeight; /* can't go smaller */ 16653893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16663893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (srcDepth - 2 * border > 1) { 16673893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstDepth = (srcDepth - 2 * border) / 2 + 2 * border; 16683893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16693893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul else { 16703893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstDepth = srcDepth; /* can't go smaller */ 16713893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16723893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16733893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (dstWidth == srcWidth && 16743893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstHeight == srcHeight && 16753893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstDepth == srcDepth) { 16763893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* all done */ 16773893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 16783893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16793893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16803893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* Need this loop just because of cubemaps */ 16813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (t = 0; targets[t]; t++) { 16823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(t < 6); 16833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage = _mesa_select_tex_image(ctx, texUnit, targets[t], level+1); 16853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (!dstImage) { 16863893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage = _mesa_alloc_texture_image(); 16873893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (!dstImage) { 16883893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); 16893893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 16903893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16913893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_set_tex_image(texObj, targets[t], level + 1, dstImage); 16923893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 16933893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16943893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* Free old image data */ 16953893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (dstImage->Data) 16963893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul FREE(dstImage->Data); 16973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 16983893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* initialize new image */ 16993893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_init_teximage_fields(ctx, dstImage, dstWidth, dstHeight, 17003893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstDepth, border, srcImage->Format); 17013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage->DriverData = NULL; 17023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage->TexFormat = srcImage->TexFormat; 17033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage->FetchTexel = srcImage->FetchTexel; 17049228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul ASSERT(dstImage->TexFormat); 17059228e17bb5bf219269daeed5cbfdd912c118e926Brian Paul ASSERT(dstImage->FetchTexel); 17063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 17073893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(dstWidth * dstHeight * dstDepth * bytesPerTexel > 0); 17083893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 17093893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* alloc new image buffer */ 17103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage->Data = MALLOC(dstWidth * dstHeight * dstDepth 17113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * bytesPerTexel); 17123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (!dstImage->Data) { 17133893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); 17143893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 17153893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 17163893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 17173893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* 17183893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * We use simple 2x2 averaging to compute the next mipmap level. 17193893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul */ 17203893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul switch (texObj->Dimensions) { 17213893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 1: 17223893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul make_1d_mipmap(srcImage->TexFormat, border, 17233893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcWidth, (const GLubyte *) srcImage->Data, 17243893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth, (GLubyte *) dstImage->Data); 17253893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 17263893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 2: 17273893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 6: 17283893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul make_2d_mipmap(srcImage->TexFormat, border, 17293893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcWidth, srcHeight, (const GLubyte *) srcImage->Data, 17303893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth, dstHeight, (GLubyte *) dstImage->Data); 17313893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 17323893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 3: 17333893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul make_3d_mipmap(srcImage->TexFormat, border, 17343893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcWidth, srcHeight, srcDepth, (const GLubyte *) srcImage->Data, 17353893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth, dstHeight, dstDepth, (GLubyte *) dstImage->Data); 17363893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 17373893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul default: 17383893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_problem(ctx, "bad dimensions in _mesa_generate_mipmaps"); 17393893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 17403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 17413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } /* loop over tex image targets */ 17423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } /* loop over tex levels */ 17433893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 1744