diff options
| -rw-r--r-- | src/mesa/main/teximage.c | 39 |
1 files changed, 32 insertions, 7 deletions
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c index 3ef3d6442ef..726ba37d9b6 100644 --- a/src/mesa/main/teximage.c +++ b/src/mesa/main/teximage.c @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.1 + * Version: 6.3 * * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. * @@ -36,6 +36,7 @@ #include "glheader.h" +#include "bufferobj.h" #include "context.h" #include "convolve.h" #include "image.h" @@ -1950,11 +1951,6 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format, return; } - if (!texImage->Data) { - /* no image data, not an error */ - return; - } - /* Make sure the requested image format is compatible with the * texture's format. */ @@ -1979,6 +1975,31 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format, return; } + if (ctx->Pack.BufferObj->Name) { + /* pack texture imaage into a PBO */ + GLubyte *buf; + if (!_mesa_validate_pbo_access(&ctx->Pack, texImage->Width, + texImage->Height, texImage->Depth, + format, type, pixels)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetTexImage(invalid PBO access)"); + return; + } + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + GL_WRITE_ONLY_ARB, + ctx->Pack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION,"glGetTexImage(PBO is mapped)"); + return; + } + pixels = ADD_POINTERS(buf, pixels); + } + else if (!pixels) { + /* not an error */ + return; + } + /* * XXX Move this code into a new driver fall-back function */ @@ -2016,7 +2037,6 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format, else { _mesa_problem(ctx, "Color index problem in _mesa_GetTexImage"); - return; } _mesa_pack_index_span(ctx, width, type, dest, indexRow, &ctx->Pack, @@ -2065,6 +2085,11 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format, } /* row */ } /* img */ } + + if (ctx->Pack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + ctx->Pack.BufferObj); + } } |