1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Mesa 3-D graphics library 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the "Software"), 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to deal in the Software without restriction, including without limitation 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and/or sell copies of the Software, and to permit persons to whom the 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software is furnished to do so, subject to the following conditions: 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice shall be included 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * in all copies or substantial portions of the Software. 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Code to convert compressed/paletted texture images to ordinary images. 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * See the GL_OES_compressed_paletted_texture spec at 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * http://khronos.org/registry/gles/extensions/OES/OES_compressed_paletted_texture.txt 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * XXX this makes it impossible to add hardware support... 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "glheader.h" 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "compiler.h" /* for ASSERT */ 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "context.h" 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "mfeatures.h" 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "mtypes.h" 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "imports.h" 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "pixelstore.h" 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "texcompress_cpal.h" 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "teximage.h" 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#if FEATURE_ES 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic const struct cpal_format_info { 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLenum cpal_format; 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLenum format; 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLenum type; 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint palette_size; 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint size; 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} formats[] = { 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE4_RGB8_OES, GL_RGB, GL_UNSIGNED_BYTE, 16, 3 }, 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE4_RGBA8_OES, GL_RGBA, GL_UNSIGNED_BYTE, 16, 4 }, 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE4_R5_G6_B5_OES, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 16, 2 }, 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE4_RGBA4_OES, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, 16, 2 }, 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE4_RGB5_A1_OES, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, 16, 2 }, 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE8_RGB8_OES, GL_RGB, GL_UNSIGNED_BYTE, 256, 3 }, 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE8_RGBA8_OES, GL_RGBA, GL_UNSIGNED_BYTE, 256, 4 }, 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE8_R5_G6_B5_OES, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 256, 2 }, 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE8_RGBA4_OES, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, 256, 2 }, 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { GL_PALETTE8_RGB5_A1_OES, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, 256, 2 } 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Get a color/entry from the palette. 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic GLuint 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgget_palette_entry(const struct cpal_format_info *info, const GLubyte *palette, 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint index, GLubyte *pixel) 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org memcpy(pixel, palette + info->size * index, info->size); 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return info->size; 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Convert paletted texture to color texture. 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgpaletted_to_color(const struct cpal_format_info *info, const GLubyte *palette, 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const void *indices, GLuint num_pixels, GLubyte *image) 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte *pix = image; 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint remain, i; 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (info->palette_size == 16) { 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* 4 bits per index */ 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLubyte *ind = (const GLubyte *) indices; 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* two pixels per iteration */ 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org remain = num_pixels % 2; 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0; i < num_pixels / 2; i++) { 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org pix += get_palette_entry(info, palette, (ind[i] >> 4) & 0xf, pix); 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org pix += get_palette_entry(info, palette, ind[i] & 0xf, pix); 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (remain) { 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org get_palette_entry(info, palette, (ind[i] >> 4) & 0xf, pix); 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else { 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* 8 bits per index */ 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLubyte *ind = (const GLubyte *) indices; 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0; i < num_pixels; i++) 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org pix += get_palette_entry(info, palette, ind[i], pix); 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgunsigned 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_cpal_compressed_size(int level, GLenum internalFormat, 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned width, unsigned height) 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct cpal_format_info *info; 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const int num_levels = -level + 1; 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org int lvl; 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned w, h, expect_size; 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (internalFormat < GL_PALETTE4_RGB8_OES 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org || internalFormat > GL_PALETTE8_RGB5_A1_OES) { 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return 0; 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info = &formats[internalFormat - GL_PALETTE4_RGB8_OES]; 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ASSERT(info->cpal_format == internalFormat); 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org expect_size = info->palette_size * info->size; 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (lvl = 0; lvl < num_levels; lvl++) { 129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org w = width >> lvl; 130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!w) 131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org w = 1; 132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org h = height >> lvl; 133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!h) 134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org h = 1; 135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (info->palette_size == 16) 137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org expect_size += (w * h + 1) / 2; 138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else 139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org expect_size += w * h; 140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return expect_size; 143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_cpal_compressed_format_type(GLenum internalFormat, GLenum *format, 147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLenum *type) 148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct cpal_format_info *info; 150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (internalFormat < GL_PALETTE4_RGB8_OES 152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org || internalFormat > GL_PALETTE8_RGB5_A1_OES) { 153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return; 154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info = &formats[internalFormat - GL_PALETTE4_RGB8_OES]; 157f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *format = info->format; 158f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *type = info->type; 159f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 160f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 161f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 162f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Convert a call to glCompressedTexImage2D() where internalFormat is a 163f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * compressed palette format into a regular GLubyte/RGBA glTexImage2D() call. 164f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 165f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 166f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org_mesa_cpal_compressed_teximage2d(GLenum target, GLint level, 167f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLenum internalFormat, 168f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLsizei width, GLsizei height, 169f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLsizei imageSize, const void *palette) 170f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 171f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct cpal_format_info *info; 172f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLint lvl, num_levels; 173f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const GLubyte *indices; 174f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLint saved_align, align; 175f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GET_CURRENT_CONTEXT(ctx); 176f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 177f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* By this point, the internalFormat should have been validated. 178f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 179f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(internalFormat >= GL_PALETTE4_RGB8_OES 180f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org && internalFormat <= GL_PALETTE8_RGB5_A1_OES); 181f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 182f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info = &formats[internalFormat - GL_PALETTE4_RGB8_OES]; 183f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 184f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org num_levels = -level + 1; 185f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 186f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* first image follows the palette */ 187f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org indices = (const GLubyte *) palette + info->palette_size * info->size; 188f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 189f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org saved_align = ctx->Unpack.Alignment; 190f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org align = saved_align; 191f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 192f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (lvl = 0; lvl < num_levels; lvl++) { 193f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLsizei w, h; 194f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLuint num_texels; 195f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org GLubyte *image = NULL; 196f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 197f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org w = width >> lvl; 198f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!w) 199f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org w = 1; 200f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org h = height >> lvl; 201f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (!h) 202f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org h = 1; 203f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org num_texels = w * h; 204f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (w * info->size % align) { 205f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_PixelStorei(GL_UNPACK_ALIGNMENT, 1); 206f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org align = 1; 207f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 208f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 209f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* allocate and fill dest image buffer */ 210f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (palette) { 211f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org image = (GLubyte *) malloc(num_texels * info->size); 212f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org paletted_to_color(info, palette, indices, num_texels, image); 213f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 214f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 215f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_TexImage2D(target, lvl, info->format, w, h, 0, 216f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->format, info->type, image); 217f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (image) 218f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org free(image); 219f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 220f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* advance index pointer to point to next src mipmap */ 221f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (info->palette_size == 16) 222f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org indices += (num_texels + 1) / 2; 223f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else 224f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org indices += num_texels; 225f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 226f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 227f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (saved_align != align) 228f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org _mesa_PixelStorei(GL_UNPACK_ALIGNMENT, saved_align); 229f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 230f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 231f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#endif 232