diff options
Diffstat (limited to 'src/mesa/main/drawpix.c')
| -rw-r--r-- | src/mesa/main/drawpix.c | 62 |
1 files changed, 55 insertions, 7 deletions
diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c index a001cf172c..4f28766674 100644 --- a/src/mesa/main/drawpix.c +++ b/src/mesa/main/drawpix.c @@ -1,8 +1,8 @@ /* * Mesa 3-D graphics library - * Version: 6.5 + * Version: 7.1 * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2008 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"), @@ -24,6 +24,7 @@ #include "glheader.h" #include "imports.h" +#include "bufferobj.h" #include "context.h" #include "drawpix.h" #include "feedback.h" @@ -182,6 +183,23 @@ _mesa_DrawPixels( GLsizei width, GLsizei height, /* Round, to satisfy conformance tests (matches SGI's OpenGL) */ GLint x = IROUND(ctx->Current.RasterPos[0]); GLint y = IROUND(ctx->Current.RasterPos[1]); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack from PBO */ + if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1, + format, type, pixels)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels(invalid PBO access)"); + return; + } + if (ctx->Unpack.BufferObj->Pointer) { + /* buffer is mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDrawPixels(PBO is mapped)"); + return; + } + } + ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type, &ctx->Unpack, pixels); } @@ -300,6 +318,21 @@ _mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height, return; } + if (ctx->Pack.BufferObj->Name) { + if (!_mesa_validate_pbo_access(2, &ctx->Pack, width, height, 1, + format, type, pixels)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glReadPixels(invalid PBO access)"); + return; + } + + if (ctx->Pack.BufferObj->Pointer) { + /* buffer is mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(PBO is mapped)"); + return; + } + } + ctx->Driver.ReadPixels(ctx, x, y, width, height, format, type, &ctx->Pack, pixels); } @@ -340,12 +373,27 @@ _mesa_Bitmap( GLsizei width, GLsizei height, } if (ctx->RenderMode == GL_RENDER) { - if (bitmap) { - /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */ - GLint x = IFLOOR(ctx->Current.RasterPos[0] - xorig); - GLint y = IFLOOR(ctx->Current.RasterPos[1] - yorig); - ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap ); + /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */ + GLint x = IFLOOR(ctx->Current.RasterPos[0] - xorig); + GLint y = IFLOOR(ctx->Current.RasterPos[1] - yorig); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack from PBO */ + if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1, + GL_COLOR_INDEX, GL_BITMAP, + (GLvoid *) bitmap)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBitmap(invalid PBO access)"); + return; + } + if (ctx->Unpack.BufferObj->Pointer) { + /* buffer is mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, "glBitmap(PBO is mapped)"); + return; + } } + + ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap ); } #if _HAVE_FULL_GL else if (ctx->RenderMode == GL_FEEDBACK) { |