Initial work for supporting different renderbuffer color depths at runtime.

1 files changed, 15 insertions, 10 deletions

diff --git a/src/mesa/swrast/s_context.c b/src/mesa/swrast/s_context.c
index 030313aea60..bb096be75a1 100644
--- a/src/mesa/swrast/s_context.c
+++ b/src/mesa/swrast/s_context.c
@@ -199,11 +199,6 @@ _swrast_update_fog_state( GLcontext *ctx )
 {
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
 
-   /* convert fog color to GLchan values */
-   CLAMPED_FLOAT_TO_CHAN(swrast->_FogColor[RCOMP], ctx->Fog.Color[RCOMP]);
-   CLAMPED_FLOAT_TO_CHAN(swrast->_FogColor[GCOMP], ctx->Fog.Color[GCOMP]);
-   CLAMPED_FLOAT_TO_CHAN(swrast->_FogColor[BCOMP], ctx->Fog.Color[BCOMP]);
-
    /* determine if fog is needed, and if so, which fog mode */
    swrast->_FogEnabled = GL_FALSE;
    if (ctx->FragmentProgram._Enabled) {
@@ -359,17 +354,16 @@ _swrast_validate_point( GLcontext *ctx, const SWvertex *v0 )
  * function, then call it.
  */
 static void _ASMAPI
-_swrast_validate_blend_func( GLcontext *ctx, GLuint n,
-			     const GLubyte mask[],
-			     GLchan src[][4],
-			     CONST GLchan dst[][4] )
+_swrast_validate_blend_func(GLcontext *ctx, GLuint n, const GLubyte mask[],
+                            GLchan src[][4], CONST GLchan dst[][4],
+                            GLenum chanType )
 {
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
 
    _swrast_validate_derived( ctx );
    _swrast_choose_blend_func( ctx );
 
-   swrast->BlendFunc( ctx, n, mask, src, dst );
+   swrast->BlendFunc( ctx, n, mask, src, dst, chanType );
 }
 
 
@@ -680,6 +674,17 @@ _swrast_CreateContext( GLcontext *ctx )
       FREE(swrast);
       return GL_FALSE;
    }
+   swrast->SpanArrays->ChanType = CHAN_TYPE;
+#if CHAN_TYPE == GL_UNSIGNED_BYTE
+   swrast->SpanArrays->rgba = swrast->SpanArrays->color.sz1.rgba;
+   swrast->SpanArrays->spec = swrast->SpanArrays->color.sz1.spec;
+#elif CHAN_TYPE == GL_UNSIGNED_SHORT
+   swrast->SpanArrays->rgba = swrast->SpanArrays->color.sz2.rgba;
+   swrast->SpanArrays->spec = swrast->SpanArrays->color.sz2.spec;
+#else
+   swrast->SpanArrays->rgba = swrast->SpanArrays->color.sz4.rgba;
+   swrast->SpanArrays->spec = swrast->SpanArrays->color.sz4.spec;
+#endif
 
    /* init point span buffer */
    swrast->PointSpan.primitive = GL_POINT;