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Simplify ctx->_NumColorDrawBuffers, _ColorDrawBuffers and fix bug 13835.

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These fields are no longer indexed by shader output.  Now, we just have
a simple array of renderbuffer pointers.

If the shader writes to gl_FragData[i], send those colors to the N
_ColorDrawBuffers.  Otherwise, replicate the single gl_FragColor (or
the fixed-function color) to the N _ColorDrawBuffers.

A few more changes and simplifications can follow from this...
This commit is contained in:
Brian
2008-01-06 10:43:20 -07:00
parent 9f6022d056
commit ff73c783cc
26 changed files with 214 additions and 219 deletions
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10
src/mesa/swrast/s_fragprog.c
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@@ -167,11 +167,11 @@ run_program(GLcontext *ctx, SWspan *span, GLuint start, GLuint end)
* Note that colors beyond 0 and 1 will overwrite other
* attributes, such as FOGC, TEX0, TEX1, etc. That's OK.
*/
GLuint output;
for (output = 0; output < swrast->_NumColorOutputs; output++) {
if (outputsWritten & (1 << (FRAG_RESULT_DATA0 + output))) {
COPY_4V(span->array->attribs[FRAG_ATTRIB_COL0+output][i],
machine->Outputs[FRAG_RESULT_DATA0 + output]);
GLuint buf;
for (buf = 0; buf < ctx->DrawBuffer->_NumColorDrawBuffers; buf++) {
if (outputsWritten & (1 << (FRAG_RESULT_DATA0 + buf))) {
COPY_4V(span->array->attribs[FRAG_ATTRIB_COL0 + buf][i],
machine->Outputs[FRAG_RESULT_DATA0 + buf]);
}
}
}