diff options
Diffstat (limited to 'src/mesa/main/texgetimage.c')
| -rw-r--r-- | src/mesa/main/texgetimage.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/mesa/main/texgetimage.c b/src/mesa/main/texgetimage.c index fdf0e1a49de..11494e53ad5 100644 --- a/src/mesa/main/texgetimage.c +++ b/src/mesa/main/texgetimage.c @@ -71,14 +71,13 @@ type_with_negative_values(GLenum type) static void get_tex_depth(struct gl_context *ctx, GLuint dimensions, GLenum format, GLenum type, GLvoid *pixels, - const struct gl_texture_image *texImage) + struct gl_texture_image *texImage) { const GLint width = texImage->Width; const GLint height = texImage->Height; const GLint depth = texImage->Depth; GLint img, row; GLfloat *depthRow = (GLfloat *) malloc(width * sizeof(GLfloat)); - const GLint texelSize = _mesa_get_format_bytes(texImage->TexFormat); if (!depthRow) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage"); @@ -86,18 +85,24 @@ get_tex_depth(struct gl_context *ctx, GLuint dimensions, } for (img = 0; img < depth; img++) { + GLubyte *srcMap; + GLint srcRowStride; + + /* map src texture buffer */ + ctx->Driver.MapTextureImage(ctx, texImage, img, + 0, 0, width, height, GL_MAP_READ_BIT, + &srcMap, &srcRowStride); + for (row = 0; row < height; row++) { void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels, width, height, format, type, img, row, 0); - const GLubyte *src = (GLubyte *) texImage->Data + - (texImage->ImageOffsets[img] + - texImage->RowStride * row) * texelSize; - + const GLubyte *src = srcMap + row * srcRowStride; _mesa_unpack_float_z_row(texImage->TexFormat, width, src, depthRow); - _mesa_pack_depth_span(ctx, width, dest, type, depthRow, &ctx->Pack); } + + ctx->Driver.UnmapTextureImage(ctx, texImage, img); } free(depthRow); |