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authorBrian Paul <brian.paul@tungstengraphics.com>2006-10-06 03:52:01 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2006-10-06 03:52:01 +0000
commit524bf7bbcf75bc4887dbc0f2f87ed79a8c44ab20 (patch)
tree3099445a376f68ac09305048dc9cf7aee4d40260 /src/mesa/swrast/s_buffers.c
parente18d0f82b6271103e292fde5bab6fceccb96f90a (diff)
rewrite clear_rgba_buffer_with_masking()
Diffstat (limited to 'src/mesa/swrast/s_buffers.c')
-rw-r--r--src/mesa/swrast/s_buffers.c35
1 files changed, 27 insertions, 8 deletions
diff --git a/src/mesa/swrast/s_buffers.c b/src/mesa/swrast/s_buffers.c
index 0174069922..bb85ee5777 100644
--- a/src/mesa/swrast/s_buffers.c
+++ b/src/mesa/swrast/s_buffers.c
@@ -47,22 +47,41 @@ clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb)
const GLint y = ctx->DrawBuffer->_Ymin;
const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
- GLchan clearColor[4];
SWspan span;
GLint i;
ASSERT(ctx->Visual.rgbMode);
ASSERT(rb->PutRow);
- CLAMPED_FLOAT_TO_CHAN(clearColor[RCOMP], ctx->Color.ClearColor[0]);
- CLAMPED_FLOAT_TO_CHAN(clearColor[GCOMP], ctx->Color.ClearColor[1]);
- CLAMPED_FLOAT_TO_CHAN(clearColor[BCOMP], ctx->Color.ClearColor[2]);
- CLAMPED_FLOAT_TO_CHAN(clearColor[ACOMP], ctx->Color.ClearColor[3]);
-
/* Initialize color span with clear color */
+ /* XXX optimize for clearcolor == black/zero (bzero) */
INIT_SPAN(span, GL_BITMAP, width, 0, SPAN_RGBA);
- for (i = 0; i < width; i++) {
- COPY_CHAN4(span.array->rgba[i], clearColor);
+ span.array->ChanType = rb->DataType;
+ if (span.array->ChanType == GL_UNSIGNED_BYTE) {
+ GLubyte clearColor[4];
+ UNCLAMPED_FLOAT_TO_UBYTE(clearColor[RCOMP], ctx->Color.ClearColor[0]);
+ UNCLAMPED_FLOAT_TO_UBYTE(clearColor[GCOMP], ctx->Color.ClearColor[1]);
+ UNCLAMPED_FLOAT_TO_UBYTE(clearColor[BCOMP], ctx->Color.ClearColor[2]);
+ UNCLAMPED_FLOAT_TO_UBYTE(clearColor[ACOMP], ctx->Color.ClearColor[3]);
+ for (i = 0; i < width; i++) {
+ COPY_4UBV(span.array->rgba[i], clearColor);
+ }
+ }
+ else if (span.array->ChanType == GL_UNSIGNED_SHORT) {
+ GLushort clearColor[4];
+ UNCLAMPED_FLOAT_TO_USHORT(clearColor[RCOMP], ctx->Color.ClearColor[0]);
+ UNCLAMPED_FLOAT_TO_USHORT(clearColor[GCOMP], ctx->Color.ClearColor[1]);
+ UNCLAMPED_FLOAT_TO_USHORT(clearColor[BCOMP], ctx->Color.ClearColor[2]);
+ UNCLAMPED_FLOAT_TO_USHORT(clearColor[ACOMP], ctx->Color.ClearColor[3]);
+ for (i = 0; i < width; i++) {
+ COPY_4V(span.array->rgba[i], clearColor);
+ }
+ }
+ else {
+ ASSERT(span.array->ChanType == GL_FLOAT);
+ for (i = 0; i < width; i++) {
+ COPY_4V(span.array->rgba[i], ctx->Color.ClearColor);
+ }
}
/* Note that masking will change the color values, but only the