* The following macros may be defined to indicate what auxillary information
* must be interplated along the line:
* INTERP_Z - if defined, interpolate Z values
- * INTERP_RGBA - if defined, interpolate RGBA values
- * INTERP_INDEX - if defined, interpolate color index values
* INTERP_ATTRIBS - if defined, interpolate attribs (texcoords, varying, etc)
*
* When one can directly address pixels in the color buffer the following
static void
-NAME( GLcontext *ctx, const SWvertex *vert0, const SWvertex *vert1 )
+NAME( struct gl_context *ctx, const SWvertex *vert0, const SWvertex *vert1 )
{
const SWcontext *swrast = SWRAST_CONTEXT(ctx);
SWspan span;
DEPTH_TYPE *zPtr;
#elif defined(INTERP_Z)
const GLint depthBits = ctx->DrawBuffer->Visual.depthBits;
-/*ctx->Visual.depthBits;*/
#endif
#ifdef PIXEL_ADDRESS
PIXEL_TYPE *pixelPtr;
/*
* Span setup: compute start and step values for all interpolated values.
*/
-#ifdef INTERP_RGBA
interpFlags |= SPAN_RGBA;
if (ctx->Light.ShadeModel == GL_SMOOTH) {
span.red = ChanToFixed(vert0->color[0]);
span.blueStep = 0;
span.alphaStep = 0;
}
-#endif
-#ifdef INTERP_INDEX
- interpFlags |= SPAN_INDEX;
- if (ctx->Light.ShadeModel == GL_SMOOTH) {
- span.index = FloatToFixed(vert0->attrib[FRAG_ATTRIB_CI][0]);
- span.indexStep = FloatToFixed( vert1->attrib[FRAG_ATTRIB_CI][0]
- - vert0->attrib[FRAG_ATTRIB_CI][0]) / numPixels;
- }
- else {
- span.index = FloatToFixed(vert1->attrib[FRAG_ATTRIB_CI][0]);
- span.indexStep = 0;
- }
-#endif
#if defined(INTERP_Z) || defined(DEPTH_TYPE)
interpFlags |= SPAN_Z;
{
#undef NAME
#undef INTERP_Z
-#undef INTERP_RGBA
#undef INTERP_ATTRIBS
-#undef INTERP_INDEX
#undef PIXEL_ADDRESS
#undef PIXEL_TYPE
#undef DEPTH_TYPE