diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/main/polygon.c | 92 | ||||
| -rw-r--r-- | src/mesa/main/polygon.h | 8 |
2 files changed, 91 insertions, 9 deletions
diff --git a/src/mesa/main/polygon.c b/src/mesa/main/polygon.c index 192c40516f..7fd6e6e960 100644 --- a/src/mesa/main/polygon.c +++ b/src/mesa/main/polygon.c @@ -5,9 +5,9 @@ /* * Mesa 3-D graphics library - * Version: 4.1 + * Version: 6.3 * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -30,6 +30,7 @@ #include "glheader.h" #include "imports.h" +#include "bufferobj.h" #include "context.h" #include "image.h" #include "enums.h" @@ -177,6 +178,53 @@ _mesa_PolygonMode( GLenum face, GLenum mode ) #if _HAVE_FULL_GL + +/** + * This routine updates the ctx->Polygon.Stipple state. + * If we're getting the stipple data from a PBO, we map the buffer + * in order to access the data. + * In any case, we obey the current pixel unpacking parameters when fetching + * the stipple data. + * + * In the future, this routine should be used as a fallback, called via + * ctx->Driver.PolygonStipple(). We'll have to update all the DRI drivers + * too. + */ +void +_mesa_polygon_stipple(GLcontext *ctx, const GLubyte *pattern) +{ + if (ctx->Unpack.BufferObj->Name) { + /* Get/unpack the stipple pattern from a PBO */ + GLubyte *buf; + if (!_mesa_validate_pbo_access(&ctx->Unpack, 32, 32, 1, + GL_COLOR_INDEX, GL_BITMAP, pattern)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPolygonStipple(bad PBO access)"); + return; + } + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + ctx->Unpack.BufferObj); + if (!buf) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPolygonStipple(PBO mapped)"); + return; + } + buf = ADD_POINTERS(buf, pattern); + _mesa_unpack_polygon_stipple(buf, ctx->PolygonStipple, &ctx->Unpack); + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + ctx->Unpack.BufferObj); + } + else { + /* Get/unpack the stipple pattern from user memory */ + _mesa_unpack_polygon_stipple(pattern, ctx->PolygonStipple, &ctx->Unpack); + } +} + + +/** + * Called by glPolygonStipple. + */ void GLAPIENTRY _mesa_PolygonStipple( const GLubyte *pattern ) { @@ -187,14 +235,17 @@ _mesa_PolygonStipple( const GLubyte *pattern ) _mesa_debug(ctx, "glPolygonStipple\n"); FLUSH_VERTICES(ctx, _NEW_POLYGONSTIPPLE); - _mesa_unpack_polygon_stipple(pattern, ctx->PolygonStipple, &ctx->Unpack); + + _mesa_polygon_stipple(ctx, pattern); if (ctx->Driver.PolygonStipple) - ctx->Driver.PolygonStipple( ctx, (const GLubyte *) ctx->PolygonStipple ); + ctx->Driver.PolygonStipple(ctx, pattern); } - +/** + * Called by glPolygonStipple. + */ void GLAPIENTRY _mesa_GetPolygonStipple( GLubyte *dest ) { @@ -204,7 +255,35 @@ _mesa_GetPolygonStipple( GLubyte *dest ) if (MESA_VERBOSE&VERBOSE_API) _mesa_debug(ctx, "glGetPolygonStipple\n"); - _mesa_pack_polygon_stipple(ctx->PolygonStipple, dest, &ctx->Pack); + /* XXX someday we may put this code into a separate function and call + * it with ctx->Driver.GetPolygonStipple(). + */ + if (ctx->Pack.BufferObj->Name) { + /* Put/pack the stipple pattern into a PBO */ + GLubyte *buf; + if (!_mesa_validate_pbo_access(&ctx->Pack, 32, 32, 1, + GL_COLOR_INDEX, GL_BITMAP, dest)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPolygonStipple(bad PBO access)"); + return; + } + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + GL_WRITE_ONLY_ARB, + ctx->Pack.BufferObj); + if (!buf) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPolygonStipple(PBO mapped)"); + return; + } + buf = ADD_POINTERS(buf, dest); + _mesa_pack_polygon_stipple(ctx->PolygonStipple, buf, &ctx->Pack); + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + ctx->Pack.BufferObj); + } + else { + /* Put/pack the stipple pattern into user memory */ + _mesa_pack_polygon_stipple(ctx->PolygonStipple, dest, &ctx->Pack); + } } @@ -230,7 +309,6 @@ _mesa_PolygonOffset( GLfloat factor, GLfloat units ) } - void GLAPIENTRY _mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias ) { diff --git a/src/mesa/main/polygon.h b/src/mesa/main/polygon.h index ef2fd0e92d..2550ed1687 100644 --- a/src/mesa/main/polygon.h +++ b/src/mesa/main/polygon.h @@ -5,9 +5,9 @@ /* * Mesa 3-D graphics library - * Version: 3.5 + * Version: 6.3 * - * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -35,6 +35,10 @@ #include "mtypes.h" +extern void +_mesa_polygon_stipple(GLcontext *ctx, const GLubyte *pattern); + + extern void GLAPIENTRY _mesa_CullFace( GLenum mode ); |