diff options
| -rw-r--r-- | src/mesa/state_tracker/st_cb_readpixels.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_cb_readpixels.c b/src/mesa/state_tracker/st_cb_readpixels.c index 03f58bf0fc4..fdb7770e446 100644 --- a/src/mesa/state_tracker/st_cb_readpixels.c +++ b/src/mesa/state_tracker/st_cb_readpixels.c @@ -201,7 +201,8 @@ st_fast_readpixels(struct gl_context *ctx, struct st_renderbuffer *strb, enum combination { A8R8G8B8_UNORM_TO_RGBA_UBYTE, A8R8G8B8_UNORM_TO_RGB_UBYTE, - A8R8G8B8_UNORM_TO_BGRA_UINT + A8R8G8B8_UNORM_TO_BGRA_UINT, + A8R8G8B8_UNORM_TO_RGBA_UINT } combo; if (ctx->_ImageTransferState) @@ -219,6 +220,10 @@ st_fast_readpixels(struct gl_context *ctx, struct st_renderbuffer *strb, format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV) { combo = A8R8G8B8_UNORM_TO_BGRA_UINT; } + else if (strb->format == PIPE_FORMAT_B8G8R8A8_UNORM && + format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8) { + combo = A8R8G8B8_UNORM_TO_RGBA_UINT; + } else { return GL_FALSE; } @@ -305,6 +310,20 @@ st_fast_readpixels(struct gl_context *ctx, struct st_renderbuffer *strb, y += dy; } break; + case A8R8G8B8_UNORM_TO_RGBA_UINT: + for (row = 0; row < height; row++) { + const GLubyte *src = map + y * trans->stride; + for (col = 0; col < width; col++) { + GLuint pixel = ((GLuint *) src)[col]; + dst[col*4+0] = (pixel >> 24) & 0xff; + dst[col*4+1] = (pixel >> 0) & 0xff; + dst[col*4+2] = (pixel >> 8) & 0xff; + dst[col*4+3] = (pixel >> 16) & 0xff; + } + dst += dstStride; + y += dy; + } + break; default: ; /* nothing */ } |