1afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/* 2afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Mesa 3-D graphics library 3216eb81c53908c9ac774a378425691aa66205a88Brian * Version: 6.5.3 4dbd1e2b5990a3689bf718296c57c14fc3ba38db5Jouk Jansen * 5216eb81c53908c9ac774a378425691aa66205a88Brian * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. 6dbd1e2b5990a3689bf718296c57c14fc3ba38db5Jouk Jansen * 7afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Permission is hereby granted, free of charge, to any person obtaining a 8afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * copy of this software and associated documentation files (the "Software"), 9afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * to deal in the Software without restriction, including without limitation 10afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * and/or sell copies of the Software, and to permit persons to whom the 12afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Software is furnished to do so, subject to the following conditions: 13dbd1e2b5990a3689bf718296c57c14fc3ba38db5Jouk Jansen * 14afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * The above copyright notice and this permission notice shall be included 15afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * in all copies or substantial portions of the Software. 16dbd1e2b5990a3689bf718296c57c14fc3ba38db5Jouk Jansen * 17afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 24afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 25afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 26afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/* 27afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg * Off-Screen Mesa rendering / Rendering into client memory space 28d3c070ca6a36daa765b1ad7f44e03e6671ad0490Brian Paul * 29d3c070ca6a36daa765b1ad7f44e03e6671ad0490Brian Paul * Note on thread safety: this driver is thread safe. All 30d3c070ca6a36daa765b1ad7f44e03e6671ad0490Brian Paul * functions are reentrant. The notion of current context is 31b1394fa92aaaf859ce9efc8b5fc194397921320cBrian Paul * managed by the core _mesa_make_current() and _mesa_get_current_context() 32d3c070ca6a36daa765b1ad7f44e03e6671ad0490Brian Paul * functions. Those functions are thread-safe. 33afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 34afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 35afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 3691b491debea274cc4dfc12130624935d4ebd9728Brian Paul#include "main/glheader.h" 37afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg#include "GL/osmesa.h" 3891b491debea274cc4dfc12130624935d4ebd9728Brian Paul#include "main/context.h" 3991b491debea274cc4dfc12130624935d4ebd9728Brian Paul#include "main/extensions.h" 4045e76d2665b38ba3787548310efc59e969124c01Brian Paul#include "main/formats.h" 4191b491debea274cc4dfc12130624935d4ebd9728Brian Paul#include "main/framebuffer.h" 4291b491debea274cc4dfc12130624935d4ebd9728Brian Paul#include "main/imports.h" 432873555a76a7358db053c3a7b121b489f8df9bb1Brian Paul#include "main/macros.h" 448d38c7229827cf76a29f942725e1d907fd335dc1Brian Paul#include "main/mipmap.h" 4591b491debea274cc4dfc12130624935d4ebd9728Brian Paul#include "main/mtypes.h" 4691b491debea274cc4dfc12130624935d4ebd9728Brian Paul#include "main/renderbuffer.h" 471e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell#include "swrast/swrast.h" 481e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell#include "swrast_setup/swrast_setup.h" 491e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell#include "swrast/s_context.h" 501e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell#include "swrast/s_lines.h" 51d0dc75c000d5af92648c7de901756400672b8447Brian Paul#include "swrast/s_renderbuffer.h" 521e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell#include "swrast/s_triangle.h" 535a9026c65d260dc185e072163999f5d810015108Brian Paul#include "tnl/tnl.h" 54709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell#include "tnl/t_context.h" 55bc69de5f21ebb4d6e1c65bf5652d17a9fc87dda7Keith Whitwell#include "tnl/t_pipeline.h" 56d3fd7ba8af15bead2f770d68a893449adeb11397Brian Paul#include "drivers/common/driverfuncs.h" 571741bc1a79b6a243e841bca704f1a720b028124aBrian Paul#include "drivers/common/meta.h" 5848f5deab94be832a782a440f55a7bc742d50a62fKeith Whitwell#include "vbo/vbo.h" 59afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 60724abeb058ca9372c5a9b9e38ee43dde1accaa41Keith Whitwell 61cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul#define OSMESA_RENDERBUFFER_CLASS 0x053 62cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 63724abeb058ca9372c5a9b9e38ee43dde1accaa41Keith Whitwell 64d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 65f9995b30756140724f41daf963fa06167912be7fKristian Høgsberg * OSMesa rendering context, derived from core Mesa struct gl_context. 66304357dcd496f7ebf499fd9c77b4eba83a75abd5Brian Paul */ 67d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paulstruct osmesa_context 68d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul{ 69f9995b30756140724f41daf963fa06167912be7fKristian Høgsberg struct gl_context mesa; /*< Base class - this must be first */ 70d3491e775fb07f891463b2185d74bbad62f3ed24Kristian Høgsberg struct gl_config *gl_visual; /*< Describes the buffers */ 71797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul struct swrast_renderbuffer *srb; /*< The user's colorbuffer */ 7231aca27c08d6a385c595d34fe4ee06390bf5b0e8Kristian Høgsberg struct gl_framebuffer *gl_buffer; /*< The framebuffer, containing user's rb */ 73d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul GLenum format; /*< User-specified context format */ 74d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul GLint userRowLength; /*< user-specified number of pixels per row */ 75d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul GLint rInd, gInd, bInd, aInd;/*< index offsets for RGBA formats */ 76a3b2c3a4211f72b82d1061a94447cdbc1321ab8eBrian Paul GLvoid *rowaddr[SWRAST_MAX_HEIGHT]; /*< address of first pixel in each image row */ 77d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul GLboolean yup; /*< TRUE -> Y increases upward */ 78d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul /*< FALSE -> Y increases downward */ 79136791ebc1fb91ef20dc65722a34f093d2947849Vinson Lee GLenum DataType; 80afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg}; 81afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 82afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 83d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paulstatic INLINE OSMesaContext 84f9995b30756140724f41daf963fa06167912be7fKristian HøgsbergOSMESA_CONTEXT(struct gl_context *ctx) 85d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul{ 86d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul /* Just cast, since we're using structure containment */ 87d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul return (OSMesaContext) ctx; 88d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul} 89c19d783e0715ac01ad4d3fd0705500d2bf6f7039Brian Paul 90c19d783e0715ac01ad4d3fd0705500d2bf6f7039Brian Paul 91afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/**********************************************************************/ 929c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul/*** Private Device Driver Functions ***/ 93afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/**********************************************************************/ 94afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 95afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 969c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paulstatic const GLubyte * 97f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergget_string( struct gl_context *ctx, GLenum name ) 98afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 999c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul (void) ctx; 1009c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul switch (name) { 1019c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case GL_RENDERER: 1029c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#if CHAN_BITS == 32 1039c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (const GLubyte *) "Mesa OffScreen32"; 1049c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#elif CHAN_BITS == 16 1059c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (const GLubyte *) "Mesa OffScreen16"; 1069c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#else 1079c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (const GLubyte *) "Mesa OffScreen"; 1089c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#endif 1099c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul default: 1109c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return NULL; 1119c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 1122bf5d9470d3232763cb49b5589209940d4d5398dBrian Paul} 1132bf5d9470d3232763cb49b5589209940d4d5398dBrian Paul 1142bf5d9470d3232763cb49b5589209940d4d5398dBrian Paul 1159c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paulstatic void 116f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergosmesa_update_state( struct gl_context *ctx, GLuint new_state ) 1179c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul{ 1189c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul /* easy - just propogate */ 1199c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul _swrast_InvalidateState( ctx, new_state ); 1209c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul _swsetup_InvalidateState( ctx, new_state ); 1219c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul _tnl_InvalidateState( ctx, new_state ); 12248f5deab94be832a782a440f55a7bc742d50a62fKeith Whitwell _vbo_InvalidateState( ctx, new_state ); 1239c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} 1249c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 1252bf5d9470d3232763cb49b5589209940d4d5398dBrian Paul 1269c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 12720215ecc7ded503d7d9cb6e8ba2f7a9c1621dd15Brian Paul/** 12820215ecc7ded503d7d9cb6e8ba2f7a9c1621dd15Brian Paul * Macros for optimized line/triangle rendering. 12920215ecc7ded503d7d9cb6e8ba2f7a9c1621dd15Brian Paul * Only for 8-bit channel, RGBA, BGRA, ARGB formats. 13020215ecc7ded503d7d9cb6e8ba2f7a9c1621dd15Brian Paul */ 131afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 1329c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define PACK_RGBA(DST, R, G, B, A) \ 1339c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Pauldo { \ 1349c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul (DST)[osmesa->rInd] = R; \ 1359c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul (DST)[osmesa->gInd] = G; \ 1369c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul (DST)[osmesa->bInd] = B; \ 1379c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul (DST)[osmesa->aInd] = A; \ 1389c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} while (0) 1399c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 140d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul#define PIXELADDR4(X,Y) ((GLchan *) osmesa->rowaddr[Y] + 4 * (X)) 141afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 1422bf5d9470d3232763cb49b5589209940d4d5398dBrian Paul 14320215ecc7ded503d7d9cb6e8ba2f7a9c1621dd15Brian Paul/** 1449c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Draw a flat-shaded, RGB line into an osmesa buffer. 145afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 14622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define NAME flat_rgba_line 14722a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define CLIP_HACK 1 14822a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define SETUP_CODE \ 14922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul const OSMesaContext osmesa = OSMESA_CONTEXT(ctx); \ 1509c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul const GLchan *color = vert1->color; 151709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell 1529c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define PLOT(X, Y) \ 1539c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Pauldo { \ 1549c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLchan *p = PIXELADDR4(X, Y); \ 1559c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul PACK_RGBA(p, color[0], color[1], color[2], color[3]); \ 1569c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} while (0) 157afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 1589c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#include "swrast/s_linetemp.h" 15922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul 160afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 161afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 16220215ecc7ded503d7d9cb6e8ba2f7a9c1621dd15Brian Paul/** 1639c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Draw a flat-shaded, Z-less, RGB line into an osmesa buffer. 164afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 16522a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define NAME flat_rgba_z_line 16622a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define CLIP_HACK 1 1679c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define INTERP_Z 1 1689c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE 16922a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul#define SETUP_CODE \ 17022a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul const OSMesaContext osmesa = OSMESA_CONTEXT(ctx); \ 17122a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul const GLchan *color = vert1->color; 17222a47c5251ee7b91dc8f7f4f7dbeb3ad5a117b70Brian Paul 1739c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define PLOT(X, Y) \ 1749c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Pauldo { \ 1759c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (Z < *zPtr) { \ 1769c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLchan *p = PIXELADDR4(X, Y); \ 1779c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul PACK_RGBA(p, color[RCOMP], color[GCOMP], \ 1789c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul color[BCOMP], color[ACOMP]); \ 1799c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *zPtr = Z; \ 1809c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } \ 1819c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} while (0) 18274b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 1839c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#include "swrast/s_linetemp.h" 184206eda8b69ab3c63e9597015189f49d1bda9356fBrian Paul 185afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 186afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 187d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 1889c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Analyze context state to see if we can provide a fast line drawing 189d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul * function. Otherwise, return NULL. 1909c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul */ 1919c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paulstatic swrast_line_func 192f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergosmesa_choose_line_function( struct gl_context *ctx ) 193afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 1949c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul const OSMesaContext osmesa = OSMESA_CONTEXT(ctx); 1959c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul const SWcontext *swrast = SWRAST_CONTEXT(ctx); 196afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 1979c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->RenderMode != GL_RENDER) return NULL; 1989c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Line.SmoothFlag) return NULL; 1999c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Texture._EnabledUnits) return NULL; 2009c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Light.ShadeModel != GL_FLAT) return NULL; 2019c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Line.Width != 1.0F) return NULL; 2029c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Line.StippleFlag) return NULL; 2039c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Line.SmoothFlag) return NULL; 2049c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (osmesa->format != OSMESA_RGBA && 2059c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->format != OSMESA_BGRA && 2069c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->format != OSMESA_ARGB) return NULL; 2079c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 2089c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (swrast->_RasterMask==DEPTH_BIT 2099c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul && ctx->Depth.Func==GL_LESS 2109c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul && ctx->Depth.Mask==GL_TRUE 2119c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul && ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) { 2129c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (swrast_line_func) flat_rgba_z_line; 213afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 214afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 2159c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (swrast->_RasterMask == 0) { 2169c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (swrast_line_func) flat_rgba_line; 217afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 2189c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 2199c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (swrast_line_func) NULL; 220afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 221afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 2229c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 2239c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul/**********************************************************************/ 2249c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul/***** Optimized triangle rendering *****/ 2259c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul/**********************************************************************/ 2269c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 2279c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 22823ee049401fdaaa77240a3eb02ca4dcce421a939Randy Frank/* 2299c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Smooth-shaded, z-less triangle, RGBA color. 23023ee049401fdaaa77240a3eb02ca4dcce421a939Randy Frank */ 2319c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define NAME smooth_rgba_z_triangle 2329c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define INTERP_Z 1 2339c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE 2349c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define INTERP_RGB 1 2359c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define INTERP_ALPHA 1 2369c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define SETUP_CODE \ 2379c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul const OSMesaContext osmesa = OSMESA_CONTEXT(ctx); 2385bdec89da520f763b6d0faad1781f64566a97fddKarl Schultz#define RENDER_SPAN( span ) { \ 2399c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLuint i; \ 2409c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLchan *img = PIXELADDR4(span.x, span.y); \ 2419c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul for (i = 0; i < span.end; i++, img += 4) { \ 2424092fbd55ac92a59d09d5167ced328683bed049cBrian Paul const GLuint z = FixedToDepth(span.z); \ 2439c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (z < zRow[i]) { \ 2449c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul PACK_RGBA(img, FixedToChan(span.red), \ 2459c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul FixedToChan(span.green), FixedToChan(span.blue), \ 2469c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul FixedToChan(span.alpha)); \ 2479c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul zRow[i] = z; \ 2489c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } \ 2499c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul span.red += span.redStep; \ 2509c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul span.green += span.greenStep; \ 2519c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul span.blue += span.blueStep; \ 2529c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul span.alpha += span.alphaStep; \ 2539c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul span.z += span.zStep; \ 2545bdec89da520f763b6d0faad1781f64566a97fddKarl Schultz } \ 2555bdec89da520f763b6d0faad1781f64566a97fddKarl Schultz} 2569c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#include "swrast/s_tritemp.h" 25701dc182ee86922845ba0b17a2cda9af19150c93aBrian Paul 258afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 259afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 260afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/* 2619c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Flat-shaded, z-less triangle, RGBA color. 262afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 2639c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define NAME flat_rgba_z_triangle 2649c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define INTERP_Z 1 2659c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE 2669c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#define SETUP_CODE \ 2679c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul const OSMesaContext osmesa = OSMESA_CONTEXT(ctx); \ 2689c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLuint pixel; \ 2699c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul PACK_RGBA((GLchan *) &pixel, v2->color[0], v2->color[1], \ 2709c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul v2->color[2], v2->color[3]); 271afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 2725bdec89da520f763b6d0faad1781f64566a97fddKarl Schultz#define RENDER_SPAN( span ) { \ 2739c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLuint i; \ 2749c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLuint *img = (GLuint *) PIXELADDR4(span.x, span.y); \ 2759c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul for (i = 0; i < span.end; i++) { \ 2764092fbd55ac92a59d09d5167ced328683bed049cBrian Paul const GLuint z = FixedToDepth(span.z); \ 2779c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (z < zRow[i]) { \ 2789c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul img[i] = pixel; \ 2799c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul zRow[i] = z; \ 2809c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } \ 2819c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul span.z += span.zStep; \ 2825bdec89da520f763b6d0faad1781f64566a97fddKarl Schultz } \ 2835bdec89da520f763b6d0faad1781f64566a97fddKarl Schultz} 2844c92f3fa6ebe01628546617f91da3b3c10572b16José Fonseca 2859c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul#include "swrast/s_tritemp.h" 28674b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 287afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 288afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 289d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 290d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul * Return pointer to an optimized triangle function if possible. 2919c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul */ 2929c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paulstatic swrast_tri_func 293f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergosmesa_choose_triangle_function( struct gl_context *ctx ) 294afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 2959c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul const OSMesaContext osmesa = OSMESA_CONTEXT(ctx); 2969c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul const SWcontext *swrast = SWRAST_CONTEXT(ctx); 297dd020f13a6d520b46aefd4453dae6b6edcc427f6Brian Paul 2989c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->RenderMode != GL_RENDER) return (swrast_tri_func) NULL; 2999c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Polygon.SmoothFlag) return (swrast_tri_func) NULL; 3009c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Polygon.StippleFlag) return (swrast_tri_func) NULL; 3019c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Texture._EnabledUnits) return (swrast_tri_func) NULL; 3029c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (osmesa->format != OSMESA_RGBA && 3039c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->format != OSMESA_BGRA && 3049c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->format != OSMESA_ARGB) return (swrast_tri_func) NULL; 3059c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Polygon.CullFlag && 3069c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) 3079c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (swrast_tri_func) NULL; 30874b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 3099c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (swrast->_RasterMask == DEPTH_BIT && 3109c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul ctx->Depth.Func == GL_LESS && 3119c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul ctx->Depth.Mask == GL_TRUE && 3129c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul ctx->Visual.depthBits == DEFAULT_SOFTWARE_DEPTH_BITS) { 3139c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx->Light.ShadeModel == GL_SMOOTH) { 3149c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (swrast_tri_func) smooth_rgba_z_triangle; 3159c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 3169c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else { 3179c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (swrast_tri_func) flat_rgba_z_triangle; 318afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 319afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 3209c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (swrast_tri_func) NULL; 321afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 322afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 323afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 324afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 3259c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul/* Override for the swrast triangle-selection function. Try to use one 3269c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * of our internal triangle functions, otherwise fall back to the 3279c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * standard swrast functions. 3289c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul */ 3299c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paulstatic void 330f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergosmesa_choose_triangle( struct gl_context *ctx ) 331afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 3329c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul SWcontext *swrast = SWRAST_CONTEXT(ctx); 333afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 3349c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul swrast->Triangle = osmesa_choose_triangle_function( ctx ); 3359c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (!swrast->Triangle) 3369c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul _swrast_choose_triangle( ctx ); 3379c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} 338afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 33974b493a5e61237de081a438e774e5d8139d4c6b7Brian Paulstatic void 340f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergosmesa_choose_line( struct gl_context *ctx ) 341afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 3429c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul SWcontext *swrast = SWRAST_CONTEXT(ctx); 3439c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 3449c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul swrast->Line = osmesa_choose_line_function( ctx ); 3459c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (!swrast->Line) 3469c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul _swrast_choose_line( ctx ); 347afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 348afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 349afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 350544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 351544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul/** 352544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul * Recompute the values of the context's rowaddr array. 353544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul */ 354544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paulstatic void 355544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paulcompute_row_addresses( OSMesaContext osmesa ) 356544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul{ 357540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul GLint bytesPerRow, i; 358797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul GLubyte *origin = (GLubyte *) osmesa->srb->Buffer; 359544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul GLint rowlength; /* in pixels */ 360797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul GLint height = osmesa->srb->Base.Height; 361544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 362544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul if (osmesa->userRowLength) 363544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul rowlength = osmesa->userRowLength; 364544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul else 365797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul rowlength = osmesa->srb->Base.Width; 366544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 367797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul bytesPerRow = rowlength * _mesa_get_format_bytes(osmesa->srb->Base.Format); 368544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 369544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul if (osmesa->yup) { 370544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul /* Y=0 is bottom line of window */ 371544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul for (i = 0; i < height; i++) { 372544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul osmesa->rowaddr[i] = (GLvoid *) ((GLubyte *) origin + i * bytesPerRow); 373544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul } 374544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul } 375544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul else { 376544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul /* Y=0 is top line of window */ 377544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul for (i = 0; i < height; i++) { 378544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul GLint j = height - i - 1; 379544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul osmesa->rowaddr[i] = (GLvoid *) ((GLubyte *) origin + j * bytesPerRow); 380544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul } 381544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul } 382544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul} 383544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 384544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 385544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 386e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul/** 3877a36345f70a0b8ac2d480bb52eb2c74c2be5a978Brian Paul * Don't use _mesa_delete_renderbuffer since we can't free rb->Buffer. 388e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul */ 38974b493a5e61237de081a438e774e5d8139d4c6b7Brian Paulstatic void 3909d4ab9a663d4088ec553edaae0eeafb746d2490dBrian Paulosmesa_delete_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb) 391afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 3929d4ab9a663d4088ec553edaae0eeafb746d2490dBrian Paul _mesa_delete_renderbuffer(ctx, rb); 393e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul} 394e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 395e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 396e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul/** 397e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul * Allocate renderbuffer storage. We don't actually allocate any storage 398e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul * since we're using a user-provided buffer. 399e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul * Just set up all the gl_renderbuffer methods. 400e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul */ 401e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paulstatic GLboolean 402f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergosmesa_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb, 403e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul GLenum internalFormat, GLuint width, GLuint height) 404e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul{ 405e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul const OSMesaContext osmesa = OSMESA_CONTEXT(ctx); 406e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 4079e81d6ae3a6db9831d6aea0fe4d92722176e9f74Brian Paul /* Note: we can ignoring internalFormat for "window-system" renderbuffers */ 4085bdc6fdebc0ab59a888fba15136eb4a0ee2790e1Brian Paul (void) internalFormat; 4095bdc6fdebc0ab59a888fba15136eb4a0ee2790e1Brian Paul 410540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul /* Given the user-provided format and type, figure out which MESA_FORMAT_x 411540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul * to use. 412540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul * XXX There aren't Mesa formats for all the possible combinations here! 413540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul * XXX Specifically, there's only RGBA-order 16-bit/channel and float 414540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul * XXX formats. 415540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul * XXX The 8-bit/channel formats should all be OK. 416540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul */ 417e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul if (osmesa->format == OSMESA_RGBA) { 418f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul if (osmesa->DataType == GL_UNSIGNED_BYTE) { 419540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul if (_mesa_little_endian()) 420540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA8888_REV; 421540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul else 422540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA8888; 423d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 424f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul else if (osmesa->DataType == GL_UNSIGNED_SHORT) { 425540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_16; 426d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 427d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul else { 428540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_FLOAT32; 429d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 430e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul } 431e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul else if (osmesa->format == OSMESA_BGRA) { 432f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul if (osmesa->DataType == GL_UNSIGNED_BYTE) { 433540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul if (_mesa_little_endian()) 434540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_ARGB8888; 435540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul else 436540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_ARGB8888_REV; 437d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 438f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul else if (osmesa->DataType == GL_UNSIGNED_SHORT) { 439540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul _mesa_warning(ctx, "Unsupported OSMesa format BGRA/GLushort"); 440540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_16; /* not exactly right */ 441d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 442d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul else { 443540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul _mesa_warning(ctx, "Unsupported OSMesa format BGRA/GLfloat"); 444540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_FLOAT32; /* not exactly right */ 445d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 446e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul } 447e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul else if (osmesa->format == OSMESA_ARGB) { 448f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul if (osmesa->DataType == GL_UNSIGNED_BYTE) { 449540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul if (_mesa_little_endian()) 450540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_ARGB8888_REV; 451540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul else 452540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_ARGB8888; 453d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 454f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul else if (osmesa->DataType == GL_UNSIGNED_SHORT) { 455540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul _mesa_warning(ctx, "Unsupported OSMesa format ARGB/GLushort"); 456540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_16; /* not exactly right */ 457d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 458d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul else { 459540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul _mesa_warning(ctx, "Unsupported OSMesa format ARGB/GLfloat"); 460540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_FLOAT32; /* not exactly right */ 461d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 462e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul } 463e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul else if (osmesa->format == OSMESA_RGB) { 464f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul if (osmesa->DataType == GL_UNSIGNED_BYTE) { 465540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGB888; 466d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 467f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul else if (osmesa->DataType == GL_UNSIGNED_SHORT) { 468540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul _mesa_warning(ctx, "Unsupported OSMesa format RGB/GLushort"); 469540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_16; /* not exactly right */ 470d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 471d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul else { 472540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul _mesa_warning(ctx, "Unsupported OSMesa format RGB/GLfloat"); 473540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_FLOAT32; /* not exactly right */ 474d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 475afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 4769c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else if (osmesa->format == OSMESA_BGR) { 477f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul if (osmesa->DataType == GL_UNSIGNED_BYTE) { 478540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_BGR888; 479d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 480f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul else if (osmesa->DataType == GL_UNSIGNED_SHORT) { 481540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul _mesa_warning(ctx, "Unsupported OSMesa format BGR/GLushort"); 482540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_16; /* not exactly right */ 483d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 484d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul else { 485540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul _mesa_warning(ctx, "Unsupported OSMesa format BGR/GLfloat"); 486540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGBA_FLOAT32; /* not exactly right */ 487d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 4889c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 4899c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else if (osmesa->format == OSMESA_RGB_565) { 490f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul ASSERT(osmesa->DataType == GL_UNSIGNED_BYTE); 491540a8b2cfdedbf5a635f33c720aa795fae74e08bBrian Paul rb->Format = MESA_FORMAT_RGB565; 4929c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 4939c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else { 494e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul _mesa_problem(ctx, "bad pixel format in osmesa renderbuffer_storage"); 495afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 496afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 497b100484145d3518e4896d756b1ceccf61382c569Daniel Borca rb->Width = width; 498b100484145d3518e4896d756b1ceccf61382c569Daniel Borca rb->Height = height; 499b100484145d3518e4896d756b1ceccf61382c569Daniel Borca 500544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul compute_row_addresses( osmesa ); 501544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 502e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul return GL_TRUE; 503afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 504afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 505afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 506e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul/** 507ed875a4cb3cf194637d696b2660b98fdc3b95b0fBrian Paul * Allocate a new renderbuffer to describe the user-provided color buffer. 508e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul */ 509797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paulstatic struct swrast_renderbuffer * 510f9995b30756140724f41daf963fa06167912be7fKristian Høgsbergnew_osmesa_renderbuffer(struct gl_context *ctx, GLenum format, GLenum type) 511e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul{ 512d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul const GLuint name = 0; 513797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul struct swrast_renderbuffer *srb = CALLOC_STRUCT(swrast_renderbuffer); 514797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul 515797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul if (srb) { 516797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul _mesa_init_renderbuffer(&srb->Base, name); 517797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul 518797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul srb->Base.ClassID = OSMESA_RENDERBUFFER_CLASS; 5193fc6e4e0254c0bfb643439952f2ceb55193010e7Brian Paul srb->Base.RefCount = 1; 520797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul srb->Base.Delete = osmesa_delete_renderbuffer; 521797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul srb->Base.AllocStorage = osmesa_renderbuffer_storage; 522797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul 523797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul srb->Base.InternalFormat = GL_RGBA; 524797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul srb->Base._BaseFormat = GL_RGBA; 525797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul 526797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul return srb; 527e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul } 528797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul return NULL; 529e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul} 530e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 5319c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 532cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 533cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paulstatic void 534cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paulosmesa_MapRenderbuffer(struct gl_context *ctx, 535cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul struct gl_renderbuffer *rb, 536cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul GLuint x, GLuint y, GLuint w, GLuint h, 537cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul GLbitfield mode, 538cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul GLubyte **mapOut, GLint *rowStrideOut) 539cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul{ 540cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul const OSMesaContext osmesa = OSMESA_CONTEXT(ctx); 541cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 542cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul if (rb->ClassID == OSMESA_RENDERBUFFER_CLASS) { 543cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul /* this is an OSMesa renderbuffer which wraps user memory */ 544797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul struct swrast_renderbuffer *srb = swrast_renderbuffer(rb); 545cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul const GLuint bpp = _mesa_get_format_bytes(rb->Format); 546cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul GLint rowStride; /* in bytes */ 547cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 548cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul if (osmesa->userRowLength) 549cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul rowStride = osmesa->userRowLength * bpp; 550cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul else 551cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul rowStride = rb->Width * bpp; 552cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 553cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul if (!osmesa->yup) { 554cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul /* Y=0 is top line of window */ 555cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul y = rb->Height - y - 1; 556cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul *rowStrideOut = -rowStride; 557cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul } 558cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul else { 559cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul *rowStrideOut = rowStride; 560cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul } 561cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 562797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul *mapOut = (GLubyte *) srb->Buffer + y * rowStride + x * bpp; 563cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul } 564cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul else { 565cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul _swrast_map_soft_renderbuffer(ctx, rb, x, y, w, h, mode, 566cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul mapOut, rowStrideOut); 567cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul } 568cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul} 569cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 570cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 571cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paulstatic void 572cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paulosmesa_UnmapRenderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb) 573cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul{ 574cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul if (rb->ClassID == OSMESA_RENDERBUFFER_CLASS) { 575cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul /* no-op */ 576cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul } 577cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul else { 578cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul _swrast_unmap_soft_renderbuffer(ctx, rb); 579cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul } 580cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul} 581cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 582cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 583afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/**********************************************************************/ 5849c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul/***** Public Functions *****/ 585afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg/**********************************************************************/ 586afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 587afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 588d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 5899c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Create an Off-Screen Mesa rendering context. The only attribute needed is 5909c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * an RGBA vs Color-Index mode flag. 5919c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * 592641705f0329c038079650089a664d76abfc5a937Ian Romanick * Input: format - Must be GL_RGBA 5939c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * sharelist - specifies another OSMesaContext with which to share 5949c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * display lists. NULL indicates no sharing. 5959c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Return: an OSMesaContext or 0 if error 5969c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul */ 5979c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulGLAPI OSMesaContext GLAPIENTRY 5989c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulOSMesaCreateContext( GLenum format, OSMesaContext sharelist ) 599afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 6009c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return OSMesaCreateContextExt(format, DEFAULT_SOFTWARE_DEPTH_BITS, 601641705f0329c038079650089a664d76abfc5a937Ian Romanick 8, 0, sharelist); 60274b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul} 60374b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 60474b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 60574b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 606d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 6079c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * New in Mesa 3.5 6089c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * 6099c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Create context and specify size of ancillary buffers. 6109c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul */ 6119c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulGLAPI OSMesaContext GLAPIENTRY 6129c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulOSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits, 6139c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLint accumBits, OSMesaContext sharelist ) 61474b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul{ 6159c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul OSMesaContext osmesa; 616d3fd7ba8af15bead2f770d68a893449adeb11397Brian Paul struct dd_function_table functions; 6179c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLint rind, gind, bind, aind; 618641705f0329c038079650089a664d76abfc5a937Ian Romanick GLint redBits = 0, greenBits = 0, blueBits = 0, alphaBits =0; 619afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 6209c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul rind = gind = bind = aind = 0; 621641705f0329c038079650089a664d76abfc5a937Ian Romanick if (format==OSMESA_RGBA) { 6229c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul redBits = CHAN_BITS; 6239c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul greenBits = CHAN_BITS; 6249c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul blueBits = CHAN_BITS; 6259c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul alphaBits = CHAN_BITS; 6269c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul rind = 0; 6279c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul gind = 1; 6289c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul bind = 2; 6299c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul aind = 3; 630afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 6319c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else if (format==OSMESA_BGRA) { 6329c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul redBits = CHAN_BITS; 6339c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul greenBits = CHAN_BITS; 6349c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul blueBits = CHAN_BITS; 6359c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul alphaBits = CHAN_BITS; 6369c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul bind = 0; 6379c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul gind = 1; 6389c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul rind = 2; 6399c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul aind = 3; 640afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 6419c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else if (format==OSMESA_ARGB) { 6429c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul redBits = CHAN_BITS; 6439c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul greenBits = CHAN_BITS; 6449c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul blueBits = CHAN_BITS; 6459c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul alphaBits = CHAN_BITS; 6469c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul aind = 0; 6479c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul rind = 1; 6489c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul gind = 2; 6499c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul bind = 3; 650206eda8b69ab3c63e9597015189f49d1bda9356fBrian Paul } 6519c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else if (format==OSMESA_RGB) { 6529c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul redBits = CHAN_BITS; 6539c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul greenBits = CHAN_BITS; 6549c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul blueBits = CHAN_BITS; 6559c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul alphaBits = 0; 6569c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul rind = 0; 6579c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul gind = 1; 6589c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul bind = 2; 659afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 6609c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else if (format==OSMESA_BGR) { 6619c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul redBits = CHAN_BITS; 6629c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul greenBits = CHAN_BITS; 6639c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul blueBits = CHAN_BITS; 6649c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul alphaBits = 0; 6659c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul rind = 2; 6669c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul gind = 1; 6679c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul bind = 0; 668afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 669cc9464e082b82179e3c4b51ea460212c10b2bf0cBrian Paul#if CHAN_TYPE == GL_UNSIGNED_BYTE 6709c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else if (format==OSMESA_RGB_565) { 6719c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul redBits = 5; 6729c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul greenBits = 6; 6739c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul blueBits = 5; 6749c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul alphaBits = 0; 6759c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul rind = 0; /* not used */ 6769c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul gind = 0; 6779c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul bind = 0; 678afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 679cc9464e082b82179e3c4b51ea460212c10b2bf0cBrian Paul#endif 680afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg else { 6819c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return NULL; 682afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 683afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 6849c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context); 6859c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (osmesa) { 686fcf438e9e03f6e75bca4a49ad372fe7c4b1abbf8Ian Romanick osmesa->gl_visual = _mesa_create_visual( GL_FALSE, /* double buffer */ 6879c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GL_FALSE, /* stereo */ 6889c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul redBits, 6899c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul greenBits, 6909c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul blueBits, 6919c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul alphaBits, 6929c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul depthBits, 6939c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul stencilBits, 6949c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul accumBits, 6959c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul accumBits, 6969c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul accumBits, 6979c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul alphaBits ? accumBits : 0, 6989c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 1 /* num samples */ 6999c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul ); 7009c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (!osmesa->gl_visual) { 70132f2fd1c5d6088692551c80352b7d6fa35b0cd09Kristian Høgsberg free(osmesa); 7029c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return NULL; 703afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 704afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 705d3fd7ba8af15bead2f770d68a893449adeb11397Brian Paul /* Initialize device driver function table */ 706d3fd7ba8af15bead2f770d68a893449adeb11397Brian Paul _mesa_init_driver_functions(&functions); 707d3fd7ba8af15bead2f770d68a893449adeb11397Brian Paul /* override with our functions */ 708d3fd7ba8af15bead2f770d68a893449adeb11397Brian Paul functions.GetString = get_string; 709d3fd7ba8af15bead2f770d68a893449adeb11397Brian Paul functions.UpdateState = osmesa_update_state; 710544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul functions.GetBufferSize = NULL; 7116fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul 7126fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul if (!_mesa_initialize_context(&osmesa->mesa, 7135e4ca1ccc9029fd75bb7676dc128e33d12da9665Brian Paul API_OPENGL, 7149c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->gl_visual, 7156fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul sharelist ? &sharelist->mesa 716f9995b30756140724f41daf963fa06167912be7fKristian Høgsberg : (struct gl_context *) NULL, 717d3fd7ba8af15bead2f770d68a893449adeb11397Brian Paul &functions, (void *) osmesa)) { 7189c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul _mesa_destroy_visual( osmesa->gl_visual ); 71932f2fd1c5d6088692551c80352b7d6fa35b0cd09Kristian Høgsberg free(osmesa); 7209c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return NULL; 721afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 72274b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 7236fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul _mesa_enable_sw_extensions(&(osmesa->mesa)); 7246fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul _mesa_enable_1_3_extensions(&(osmesa->mesa)); 7256fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul _mesa_enable_1_4_extensions(&(osmesa->mesa)); 72684351999ec6ad07e0cfc31c0b3a8c86da4134bfeBrian Paul _mesa_enable_1_5_extensions(&(osmesa->mesa)); 7275c4ca968fab1b0b993fabeb73e3a5d92cbaadaf1Brian _mesa_enable_2_0_extensions(&(osmesa->mesa)); 7285c4ca968fab1b0b993fabeb73e3a5d92cbaadaf1Brian _mesa_enable_2_1_extensions(&(osmesa->mesa)); 72974b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 730e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul osmesa->gl_buffer = _mesa_create_framebuffer(osmesa->gl_visual); 7319c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (!osmesa->gl_buffer) { 7329c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul _mesa_destroy_visual( osmesa->gl_visual ); 7336fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul _mesa_free_context_data( &osmesa->mesa ); 73432f2fd1c5d6088692551c80352b7d6fa35b0cd09Kristian Høgsberg free(osmesa); 7359c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return NULL; 7369c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 737e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 73836b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul /* Create depth/stencil/accum buffers. We'll create the color 73936b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul * buffer later in OSMesaMakeCurrent(). 74036b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul */ 741d0dc75c000d5af92648c7de901756400672b8447Brian Paul _swrast_add_soft_renderbuffers(osmesa->gl_buffer, 742d0dc75c000d5af92648c7de901756400672b8447Brian Paul GL_FALSE, /* color */ 743d0dc75c000d5af92648c7de901756400672b8447Brian Paul osmesa->gl_visual->haveDepthBuffer, 744d0dc75c000d5af92648c7de901756400672b8447Brian Paul osmesa->gl_visual->haveStencilBuffer, 745d0dc75c000d5af92648c7de901756400672b8447Brian Paul osmesa->gl_visual->haveAccumBuffer, 746d0dc75c000d5af92648c7de901756400672b8447Brian Paul GL_FALSE, /* alpha */ 747d0dc75c000d5af92648c7de901756400672b8447Brian Paul GL_FALSE /* aux */ ); 748e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 7499c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->format = format; 7509c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->userRowLength = 0; 7519c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->yup = GL_TRUE; 7529c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->rInd = rind; 7539c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->gInd = gind; 7549c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->bInd = bind; 7559c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->aInd = aind; 75674b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 7571741bc1a79b6a243e841bca704f1a720b028124aBrian Paul _mesa_meta_init(&osmesa->mesa); 7581741bc1a79b6a243e841bca704f1a720b028124aBrian Paul 7599c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul /* Initialize the software rasterizer and helper modules. */ 7609c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul { 761f9995b30756140724f41daf963fa06167912be7fKristian Høgsberg struct gl_context *ctx = &osmesa->mesa; 762e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul SWcontext *swrast; 763e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul TNLcontext *tnl; 764afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 765c45b7364dab6c3daebc1f1d8d11124af4129074aBrian Paul if (!_swrast_CreateContext( ctx ) || 7660a0fb5e0b3cfe61749af41d4200d42982b551cefKeith Whitwell !_vbo_CreateContext( ctx ) || 767c45b7364dab6c3daebc1f1d8d11124af4129074aBrian Paul !_tnl_CreateContext( ctx ) || 768c45b7364dab6c3daebc1f1d8d11124af4129074aBrian Paul !_swsetup_CreateContext( ctx )) { 769c45b7364dab6c3daebc1f1d8d11124af4129074aBrian Paul _mesa_destroy_visual(osmesa->gl_visual); 770c45b7364dab6c3daebc1f1d8d11124af4129074aBrian Paul _mesa_free_context_data(ctx); 77132f2fd1c5d6088692551c80352b7d6fa35b0cd09Kristian Høgsberg free(osmesa); 772c45b7364dab6c3daebc1f1d8d11124af4129074aBrian Paul return NULL; 773c45b7364dab6c3daebc1f1d8d11124af4129074aBrian Paul } 7749c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 7759c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul _swsetup_Wakeup( ctx ); 776e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 777e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul /* use default TCL pipeline */ 778e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul tnl = TNL_CONTEXT(ctx); 779e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul tnl->Driver.RunPipeline = _tnl_run_pipeline; 780e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 781cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul ctx->Driver.MapRenderbuffer = osmesa_MapRenderbuffer; 782cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul ctx->Driver.UnmapRenderbuffer = osmesa_UnmapRenderbuffer; 783cb254b75d7d971b3f1baab45a82cedf0bd6c36c4Brian Paul 7848d38c7229827cf76a29f942725e1d907fd335dc1Brian Paul ctx->Driver.GenerateMipmap = _mesa_generate_mipmap; 7858d38c7229827cf76a29f942725e1d907fd335dc1Brian Paul 786e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul /* Extend the software rasterizer with our optimized line and triangle 787e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul * drawing functions. 788e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul */ 789e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul swrast = SWRAST_CONTEXT( ctx ); 790e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul swrast->choose_line = osmesa_choose_line; 791e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul swrast->choose_triangle = osmesa_choose_triangle; 7929c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 793afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 7949c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return osmesa; 795afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 796afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 797afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 798d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 7999c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Destroy an Off-Screen Mesa rendering context. 8009c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * 801d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul * \param osmesa the context to destroy 802afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 8039c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulGLAPI void GLAPIENTRY 804d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian PaulOSMesaDestroyContext( OSMesaContext osmesa ) 805afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 806d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul if (osmesa) { 807797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul if (osmesa->srb) 808797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul _mesa_reference_renderbuffer((struct gl_renderbuffer **) &osmesa->srb, NULL); 809216eb81c53908c9ac774a378425691aa66205a88Brian 8101741bc1a79b6a243e841bca704f1a720b028124aBrian Paul _mesa_meta_free( &osmesa->mesa ); 8111741bc1a79b6a243e841bca704f1a720b028124aBrian Paul 812d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul _swsetup_DestroyContext( &osmesa->mesa ); 813d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul _tnl_DestroyContext( &osmesa->mesa ); 8140a0fb5e0b3cfe61749af41d4200d42982b551cefKeith Whitwell _vbo_DestroyContext( &osmesa->mesa ); 815d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul _swrast_DestroyContext( &osmesa->mesa ); 816d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul 817d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul _mesa_destroy_visual( osmesa->gl_visual ); 8187eb5a2892d3d89f4b1800311babb40af1ec7d4e5Brian Paul _mesa_reference_framebuffer( &osmesa->gl_buffer, NULL ); 819a510bc3ee1a696da120c09ee4ec33dc033f671acBrian 820d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul _mesa_free_context_data( &osmesa->mesa ); 82132f2fd1c5d6088692551c80352b7d6fa35b0cd09Kristian Høgsberg free( osmesa ); 8229c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 8239c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} 824afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 825afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 826d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 8279c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Bind an OSMesaContext to an image buffer. The image buffer is just a 8289c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * block of memory which the client provides. Its size must be at least 8299c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * as large as width*height*sizeof(type). Its address should be a multiple 8309c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * of 4 if using RGBA mode. 8319c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * 8329c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Image data is stored in the order of glDrawPixels: row-major order 8339c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * with the lower-left image pixel stored in the first array position 8349c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * (ie. bottom-to-top). 8359c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * 8369c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * If the context's viewport hasn't been initialized yet, it will now be 8379c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * initialized to (0,0,width,height). 8389c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * 839d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul * Input: osmesa - the rendering context 8409c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * buffer - the image buffer memory 8419c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * type - data type for pixel components 8429c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Normally, only GL_UNSIGNED_BYTE and GL_UNSIGNED_SHORT_5_6_5 8439c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * are supported. But if Mesa's been compiled with CHAN_BITS==16 844d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul * then type may be GL_UNSIGNED_SHORT or GL_UNSIGNED_BYTE. And if 845d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul * Mesa's been build with CHAN_BITS==32 then type may be GL_FLOAT, 846d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul * GL_UNSIGNED_SHORT or GL_UNSIGNED_BYTE. 8479c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * width, height - size of image buffer in pixels, at least 1 848d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul * Return: GL_TRUE if success, GL_FALSE if error because of invalid osmesa, 8499c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * invalid buffer address, invalid type, width<1, height<1, 8509c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * width>internal limit or height>internal limit. 851afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg */ 8529c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulGLAPI GLboolean GLAPIENTRY 853d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian PaulOSMesaMakeCurrent( OSMesaContext osmesa, void *buffer, GLenum type, 8549c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLsizei width, GLsizei height ) 855afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 856d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul if (!osmesa || !buffer || 8579c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul width < 1 || height < 1 || 858a3b2c3a4211f72b82d1061a94447cdbc1321ab8eBrian Paul width > SWRAST_MAX_WIDTH || height > SWRAST_MAX_HEIGHT) { 8599c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return GL_FALSE; 8609c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 86174b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 862d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul if (osmesa->format == OSMESA_RGB_565 && type != GL_UNSIGNED_SHORT_5_6_5) { 863d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul return GL_FALSE; 864afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 865d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul 866544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul#if 0 867d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul if (!(type == GL_UNSIGNED_BYTE || 868d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul (type == GL_UNSIGNED_SHORT && CHAN_BITS >= 16) || 869d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul (type == GL_FLOAT && CHAN_BITS == 32))) { 870d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul /* i.e. is sizeof(type) * 8 > CHAN_BITS? */ 8719c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return GL_FALSE; 8729c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 873544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul#endif 87458f4d67703381003c23fecbd3fe114ef9d1730c3Brian Paul 875d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul osmesa_update_state( &osmesa->mesa, 0 ); 876c6c0f947142c0cc82626c238804a68b4e8f53945Brian Paul 877c6c0f947142c0cc82626c238804a68b4e8f53945Brian Paul /* Call this periodically to detect when the user has begun using 878c6c0f947142c0cc82626c238804a68b4e8f53945Brian Paul * GL rendering from multiple threads. 879c6c0f947142c0cc82626c238804a68b4e8f53945Brian Paul */ 880c6c0f947142c0cc82626c238804a68b4e8f53945Brian Paul _glapi_check_multithread(); 881c6c0f947142c0cc82626c238804a68b4e8f53945Brian Paul 88236b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul 88336b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul /* Create a front/left color buffer which wraps the user-provided buffer. 88436b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul * There is no back color buffer. 88536b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul * If the user tries to use a 8, 16 or 32-bit/channel buffer that 88636b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul * doesn't match what Mesa was compiled for (CHAN_BITS) the 88736b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul * _mesa_add_renderbuffer() function will create a "wrapper" renderbuffer 88836b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul * that converts rendering from CHAN_BITS to the user-requested channel 88936b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul * size. 89036b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul */ 891797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul if (!osmesa->srb) { 892797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul osmesa->srb = new_osmesa_renderbuffer(&osmesa->mesa, osmesa->format, type); 8939c2b4814d0b7dc67777099ea249c09bcf9ee46ebBrian Paul _mesa_remove_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT); 894797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul _mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT, 895797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul &osmesa->srb->Base); 896797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul assert(osmesa->srb->Base.RefCount == 2); 8979c2b4814d0b7dc67777099ea249c09bcf9ee46ebBrian Paul } 89836b3a8bd5a317ab297f44b19fd14c7e76ec2fc77Brian Paul 899f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul osmesa->DataType = type; 900f9874feef4d8952df5054bd8e8f4e0deda4ef44fBrian Paul 901544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul /* Set renderbuffer fields. Set width/height = 0 to force 902544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul * osmesa_renderbuffer_storage() being called by _mesa_resize_framebuffer() 903544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul */ 904797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul osmesa->srb->Buffer = buffer; 905797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul osmesa->srb->Base.Width = osmesa->srb->Base.Height = 0; 906544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul 9079cbe0e24ac3772ec5db303e532166351affc91c9Brian Paul /* Set the framebuffer's size. This causes the 9089cbe0e24ac3772ec5db303e532166351affc91c9Brian Paul * osmesa_renderbuffer_storage() function to get called. 9099cbe0e24ac3772ec5db303e532166351affc91c9Brian Paul */ 9109cbe0e24ac3772ec5db303e532166351affc91c9Brian Paul _mesa_resize_framebuffer(&osmesa->mesa, osmesa->gl_buffer, width, height); 9119cbe0e24ac3772ec5db303e532166351affc91c9Brian Paul osmesa->gl_buffer->Initialized = GL_TRUE; /* XXX TEMPORARY? */ 9129cbe0e24ac3772ec5db303e532166351affc91c9Brian Paul 913d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul _mesa_make_current( &osmesa->mesa, osmesa->gl_buffer, osmesa->gl_buffer ); 91458f4d67703381003c23fecbd3fe114ef9d1730c3Brian Paul 91589ffca52ac18103ebaa754241a882ea8438ff9c4Brian Paul /* Remove renderbuffer attachment, then re-add. This installs the 916544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul * renderbuffer adaptor/wrapper if needed (for bpp conversion). 917d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul */ 91889ffca52ac18103ebaa754241a882ea8438ff9c4Brian Paul _mesa_remove_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT); 919797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul _mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT, 920797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul &osmesa->srb->Base); 92174b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 92289ffca52ac18103ebaa754241a882ea8438ff9c4Brian Paul 923d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul /* this updates the visual's red/green/blue/alphaBits fields */ 924c8a6a8bf2c8c530edfea737ab0f316ae7b1e42eeBrian Paul _mesa_update_framebuffer_visual(&osmesa->mesa, osmesa->gl_buffer); 925d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul 926d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul /* update the framebuffer size */ 927d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul _mesa_resize_framebuffer(&osmesa->mesa, osmesa->gl_buffer, width, height); 92874b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul 9299c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return GL_TRUE; 930afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 931afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 9321e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell 9331e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell 934c5f9aa7750633e2989a6a139c283419d536ee3f7Brian PaulGLAPI OSMesaContext GLAPIENTRY 935c5f9aa7750633e2989a6a139c283419d536ee3f7Brian PaulOSMesaGetCurrentContext( void ) 9369c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul{ 937f9995b30756140724f41daf963fa06167912be7fKristian Høgsberg struct gl_context *ctx = _mesa_get_current_context(); 9389c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (ctx) 9399c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return (OSMesaContext) ctx; 9409c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else 9419c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return NULL; 9429c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} 9432d595d70202bad560c27ea81ec71b740415b3355Brian Paul 9441e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell 9451e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell 946c5f9aa7750633e2989a6a139c283419d536ee3f7Brian PaulGLAPI void GLAPIENTRY 947c5f9aa7750633e2989a6a139c283419d536ee3f7Brian PaulOSMesaPixelStore( GLint pname, GLint value ) 9481e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell{ 9499c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul OSMesaContext osmesa = OSMesaGetCurrentContext(); 950dbd1e2b5990a3689bf718296c57c14fc3ba38db5Jouk Jansen 9519c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul switch (pname) { 9529c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_ROW_LENGTH: 9539c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (value<0) { 9546fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul _mesa_error( &osmesa->mesa, GL_INVALID_VALUE, 9559c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul "OSMesaPixelStore(value)" ); 9569c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 9579c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 9589c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->userRowLength = value; 9599c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul break; 9609c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_Y_UP: 9619c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul osmesa->yup = value ? GL_TRUE : GL_FALSE; 9629c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul break; 9639c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul default: 9646fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul _mesa_error( &osmesa->mesa, GL_INVALID_ENUM, "OSMesaPixelStore(pname)" ); 9659c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 9669c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 967dbd1e2b5990a3689bf718296c57c14fc3ba38db5Jouk Jansen 9689c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul compute_row_addresses( osmesa ); 9691e885f6e6ce9c46c3220eb0472bdfe2aa7946596Keith Whitwell} 970ed30dfa1264ec8875a3162c3c8778bc703bf11d5Brian Paul 971ed30dfa1264ec8875a3162c3c8778bc703bf11d5Brian Paul 972c5f9aa7750633e2989a6a139c283419d536ee3f7Brian PaulGLAPI void GLAPIENTRY 973c5f9aa7750633e2989a6a139c283419d536ee3f7Brian PaulOSMesaGetIntegerv( GLint pname, GLint *value ) 974afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 9759c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul OSMesaContext osmesa = OSMesaGetCurrentContext(); 9769c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 9779c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul switch (pname) { 9789c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_WIDTH: 979544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul if (osmesa->gl_buffer) 980544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul *value = osmesa->gl_buffer->Width; 981544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul else 982544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul *value = 0; 9839c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 9849c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_HEIGHT: 985544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul if (osmesa->gl_buffer) 986544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul *value = osmesa->gl_buffer->Height; 987544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul else 988544b94e15617fb69f77ebd57b1be49aafe2f64e6Brian Paul *value = 0; 9899c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 9909c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_FORMAT: 9919c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *value = osmesa->format; 9929c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 9939c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_TYPE: 994d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul /* current color buffer's data type */ 995797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul *value = osmesa->DataType; 9969c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 9979c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_ROW_LENGTH: 9989c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *value = osmesa->userRowLength; 9999c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 10009c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_Y_UP: 10019c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *value = osmesa->yup; 10029c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 10039c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_MAX_WIDTH: 1004a3b2c3a4211f72b82d1061a94447cdbc1321ab8eBrian Paul *value = SWRAST_MAX_WIDTH; 10059c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 10069c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul case OSMESA_MAX_HEIGHT: 1007a3b2c3a4211f72b82d1061a94447cdbc1321ab8eBrian Paul *value = SWRAST_MAX_HEIGHT; 10089c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 1009afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg default: 10106fafc7ad19a8b7400e57a86b588766b6f3811a05Brian Paul _mesa_error(&osmesa->mesa, GL_INVALID_ENUM, "OSMesaGetIntergerv(pname)"); 10119c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return; 1012afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 1013afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 1014afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 1015d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul 1016d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 10179c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Return the depth buffer associated with an OSMesa context. 10189c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Input: c - the OSMesa context 10199c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Output: width, height - size of buffer in pixels 10209c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * bytesPerValue - bytes per depth value (2 or 4) 10219c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * buffer - pointer to depth buffer values 10229c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Return: GL_TRUE or GL_FALSE to indicate success or failure. 10239c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul */ 10249c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulGLAPI GLboolean GLAPIENTRY 10259c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulOSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height, 10269c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLint *bytesPerValue, void **buffer ) 1027afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg{ 1028797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul struct swrast_renderbuffer *srb = NULL; 1029e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 1030e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul if (c->gl_buffer) 1031797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul srb = swrast_renderbuffer(c->gl_buffer-> 1032797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul Attachment[BUFFER_DEPTH].Renderbuffer); 1033e4b2356c07d31fbeeabb13b2fb47db703b473080Brian Paul 1034797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul if (!srb || !srb->Buffer) { 10359c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *width = 0; 10369c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *height = 0; 10379c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *bytesPerValue = 0; 10389c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *buffer = 0; 10399c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return GL_FALSE; 104074b493a5e61237de081a438e774e5d8139d4c6b7Brian Paul } 10419c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else { 1042797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul *width = srb->Base.Width; 1043797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul *height = srb->Base.Height; 10449c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul if (c->gl_visual->depthBits <= 16) 10459c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *bytesPerValue = sizeof(GLushort); 10469c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul else 10479c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *bytesPerValue = sizeof(GLuint); 1048797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul *buffer = (void *) srb->Buffer; 10499c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return GL_TRUE; 1050afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg } 10519c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} 10529c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 1053d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul 1054d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul/** 10559c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Return the color buffer associated with an OSMesa context. 10569c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Input: c - the OSMesa context 10579c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Output: width, height - size of buffer in pixels 10589c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * format - the pixel format (OSMESA_FORMAT) 10599c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * buffer - pointer to color buffer values 10609c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul * Return: GL_TRUE or GL_FALSE to indicate success or failure. 10619c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul */ 10629c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulGLAPI GLboolean GLAPIENTRY 1063d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian PaulOSMesaGetColorBuffer( OSMesaContext osmesa, GLint *width, 10649c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul GLint *height, GLint *format, void **buffer ) 10659c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul{ 1066797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul if (osmesa->srb && osmesa->srb->Buffer) { 1067797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul *width = osmesa->srb->Base.Width; 1068797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul *height = osmesa->srb->Base.Height; 1069d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul *format = osmesa->format; 1070797c18be1f907337ebd85b18ce43dfa0b056f492Brian Paul *buffer = (void *) osmesa->srb->Buffer; 1071d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul return GL_TRUE; 1072d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul } 1073d44248ca00ad404cfc18c2c1f4c1817936ee4eacBrian Paul else { 10749c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *width = 0; 10759c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *height = 0; 10769c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *format = 0; 10779c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul *buffer = 0; 10789c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul return GL_FALSE; 1079206eda8b69ab3c63e9597015189f49d1bda9356fBrian Paul } 10809c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul} 1081afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg 1082709892459922a32096fe9dd8261d0d92337bb02fKeith Whitwell 1083c5f9aa7750633e2989a6a139c283419d536ee3f7Brian Paulstruct name_function 1084c5f9aa7750633e2989a6a139c283419d536ee3f7Brian Paul{ 10859c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul const char *Name; 10864d880987d248ff078845027cc21ba437564ac07dBrian Paul OSMESAproc Function; 10879c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul}; 10889c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 1089c5f9aa7750633e2989a6a139c283419d536ee3f7Brian Paulstatic struct name_function functions[] = { 10904d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaCreateContext", (OSMESAproc) OSMesaCreateContext }, 10914d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaCreateContextExt", (OSMESAproc) OSMesaCreateContextExt }, 10924d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaDestroyContext", (OSMESAproc) OSMesaDestroyContext }, 10934d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaMakeCurrent", (OSMESAproc) OSMesaMakeCurrent }, 10944d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaGetCurrentContext", (OSMESAproc) OSMesaGetCurrentContext }, 10954d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaPixelsStore", (OSMESAproc) OSMesaPixelStore }, 10964d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaGetIntegerv", (OSMESAproc) OSMesaGetIntegerv }, 10974d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaGetDepthBuffer", (OSMESAproc) OSMesaGetDepthBuffer }, 10984d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaGetColorBuffer", (OSMESAproc) OSMesaGetColorBuffer }, 10994d880987d248ff078845027cc21ba437564ac07dBrian Paul { "OSMesaGetProcAddress", (OSMESAproc) OSMesaGetProcAddress }, 1100ad766b5785c728e988e25509604c08fc347aba23Alan Hourihane { "OSMesaColorClamp", (OSMESAproc) OSMesaColorClamp }, 11019c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul { NULL, NULL } 11029c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul}; 11039c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul 11044d880987d248ff078845027cc21ba437564ac07dBrian Paul 11054d880987d248ff078845027cc21ba437564ac07dBrian PaulGLAPI OSMESAproc GLAPIENTRY 11069c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian PaulOSMesaGetProcAddress( const char *funcName ) 11079c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul{ 11089c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul int i; 11099c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul for (i = 0; functions[i].Name; i++) { 11108d73aa6d1ae6e89bb2cd8f52f5586d569a4b6eebKenneth Graunke if (strcmp(functions[i].Name, funcName) == 0) 11114d880987d248ff078845027cc21ba437564ac07dBrian Paul return functions[i].Function; 11129c799cdc49e9200f5a1c7c7d9787d5729b5b0082Brian Paul } 11134d880987d248ff078845027cc21ba437564ac07dBrian Paul return _glapi_get_proc_address(funcName); 1114afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1cjtg} 1115ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul 1116ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul 1117ba3da6154c324cc916845bc5de3de077d0b59ffcBrian PaulGLAPI void GLAPIENTRY 1118ba3da6154c324cc916845bc5de3de077d0b59ffcBrian PaulOSMesaColorClamp(GLboolean enable) 1119ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul{ 1120ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul OSMesaContext osmesa = OSMesaGetCurrentContext(); 1121ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul 1122ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul if (enable == GL_TRUE) { 1123ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul osmesa->mesa.Color.ClampFragmentColor = GL_TRUE; 1124ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul } 1125ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul else { 1126ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul osmesa->mesa.Color.ClampFragmentColor = GL_FIXED_ONLY_ARB; 1127ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul } 1128ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul} 1129ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul 1130ba3da6154c324cc916845bc5de3de077d0b59ffcBrian Paul 11310e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston/** 11320e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston * When GLX_INDIRECT_RENDERING is defined, some symbols are missing in 11330e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston * libglapi.a. We need to define them here. 11340e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston */ 11350e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#ifdef GLX_INDIRECT_RENDERING 11360e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston 11370e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#define GL_GLEXT_PROTOTYPES 11380e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#include "GL/gl.h" 11390e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#include "glapi/glapi.h" 11400e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#include "glapi/glapitable.h" 11410e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston 11420e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#if defined(USE_MGL_NAMESPACE) 11430e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#define NAME(func) mgl##func 11440e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#else 11450e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#define NAME(func) gl##func 11460e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#endif 11470e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston 11480e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#define DISPATCH(FUNC, ARGS, MESSAGE) \ 11490e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston GET_DISPATCH()->FUNC ARGS 11500e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston 11510e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#define RETURN_DISPATCH(FUNC, ARGS, MESSAGE) \ 11520e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston return GET_DISPATCH()->FUNC ARGS 11530e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston 11540e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston/* skip normal ones */ 11550e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#define _GLAPI_SKIP_NORMAL_ENTRY_POINTS 11560e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#include "glapi/glapitemp.h" 11570e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston 11580e8d045bf8bc930576cc69b9de8a31a4c973dc7cJeremy Huddleston#endif /* GLX_INDIRECT_RENDERING */ 1159