diff options
Diffstat (limited to 'src/mesa/main')
| -rw-r--r-- | src/mesa/main/texgetimage.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/src/mesa/main/texgetimage.c b/src/mesa/main/texgetimage.c index 2830dda867f..4d583094312 100644 --- a/src/mesa/main/texgetimage.c +++ b/src/mesa/main/texgetimage.c @@ -487,11 +487,11 @@ _mesa_get_compressed_teximage(struct gl_context *ctx, GLenum target, GLint level struct gl_texture_object *texObj, struct gl_texture_image *texImage) { - const GLuint row_stride = _mesa_format_row_stride(texImage->TexFormat, - texImage->Width); - const GLuint row_stride_stored = _mesa_format_row_stride(texImage->TexFormat, - texImage->RowStride); + const GLuint row_stride = + _mesa_format_row_stride(texImage->TexFormat, texImage->Width); GLuint i; + GLubyte *src; + GLint srcRowStride; if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { /* pack texture image into a PBO */ @@ -507,25 +507,32 @@ _mesa_get_compressed_teximage(struct gl_context *ctx, GLenum target, GLint level img = ADD_POINTERS(buf, img); } + /* map src texture buffer */ + ctx->Driver.MapTextureImage(ctx, texImage, 0, + 0, 0, texImage->Width, texImage->Height, + GL_MAP_READ_BIT, &src, &srcRowStride); + /* no pixelstore or pixel transfer, but respect stride */ - if (row_stride == row_stride_stored) { + if (row_stride == srcRowStride) { const GLuint size = _mesa_format_image_size(texImage->TexFormat, texImage->Width, texImage->Height, texImage->Depth); - memcpy(img, texImage->Data, size); + memcpy(img, src, size); } else { GLuint bw, bh; _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh); for (i = 0; i < (texImage->Height + bh - 1) / bh; i++) { memcpy((GLubyte *)img + i * row_stride, - (GLubyte *)texImage->Data + i * row_stride_stored, + (GLubyte *)src + i * srcRowStride, row_stride); } } + ctx->Driver.UnmapTextureImage(ctx, texImage, 0); + if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) { ctx->Driver.UnmapBuffer(ctx, ctx->Pack.BufferObj); } |