-/* $Id: accum.c,v 1.19 2000/04/04 00:54:23 brianp Exp $ */
+/* $Id: accum.c,v 1.21 2000/06/19 00:42:24 brianp Exp $ */
/*
* Mesa 3-D graphics library
switch (op) {
case GL_ADD:
- {
+ if (value != 0.0F) {
const GLaccum intVal = (GLaccum) (value * acc_scale);
GLuint j;
/* Leave optimized accum buffer mode */
break;
case GL_MULT:
- {
+ if (value != 1.0F) {
GLuint j;
/* Leave optimized accum buffer mode */
if (ctx->IntegerAccumMode)
break;
case GL_ACCUM:
+ if (value == 0.0F)
+ return;
+
(*ctx->Driver.SetReadBuffer)( ctx, ctx->ReadBuffer,
ctx->Pixel.DriverReadBuffer );
rgba[i][ACOMP] = multTable[acc[i4+3]];
}
if (ctx->Color.SWmasking) {
- gl_mask_rgba_span( ctx, width, xpos, ypos, rgba );
+ _mesa_mask_rgba_span( ctx, width, xpos, ypos, rgba );
}
(*ctx->Driver.WriteRGBASpan)( ctx, width, xpos, ypos,
(const GLubyte (*)[4])rgba, NULL );
rgba[i][ACOMP] = CLAMP( a, 0, iChanMax );
}
if (ctx->Color.SWmasking) {
- gl_mask_rgba_span( ctx, width, xpos, ypos, rgba );
+ _mesa_mask_rgba_span( ctx, width, xpos, ypos, rgba );
}
(*ctx->Driver.WriteRGBASpan)( ctx, width, xpos, ypos,
(const GLubyte (*)[4])rgba, NULL );