diff options
| author | Brian Paul <brian.paul@tungstengraphics.com> | 2002-04-04 01:40:18 +0000 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2002-04-04 01:40:18 +0000 |
| commit | 6b50a004ffb885dd86dd611979348bdf69b1151c (patch) | |
| tree | 1d7669a512781979ce7acc70e18bfc586b463dca /src/mesa/swrast/s_blend.c | |
| parent | 02ee456248c75cfee324164ec6fd81a3b77ec2bf (diff) | |
blend_add() modified for GLfloat channels
Diffstat (limited to 'src/mesa/swrast/s_blend.c')
| -rw-r--r-- | src/mesa/swrast/s_blend.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/mesa/swrast/s_blend.c b/src/mesa/swrast/s_blend.c index 5fa76322dc..73c03d1a63 100644 --- a/src/mesa/swrast/s_blend.c +++ b/src/mesa/swrast/s_blend.c @@ -1,4 +1,4 @@ -/* $Id: s_blend.c,v 1.16 2002/04/02 23:36:51 brianp Exp $ */ +/* $Id: s_blend.c,v 1.17 2002/04/04 01:40:18 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -28,6 +28,7 @@ #include "glheader.h" #include "context.h" +#include "colormac.h" #include "macros.h" #include "s_alphabuf.h" @@ -60,10 +61,7 @@ blend_noop( GLcontext *ctx, GLuint n, const GLubyte mask[], for (i = 0; i < n; i++) { if (mask[i]) { - rgba[i][RCOMP] = dest[i][RCOMP]; - rgba[i][GCOMP] = dest[i][GCOMP]; - rgba[i][BCOMP] = dest[i][BCOMP]; - rgba[i][ACOMP] = dest[i][ACOMP]; + COPY_CHAN4( rgba[i], dest[i] ); } } } @@ -142,6 +140,7 @@ blend_transparency( GLcontext *ctx, GLuint n, const GLubyte mask[], const GLint g = DIV255((rgba[i][GCOMP] - dest[i][GCOMP]) * t) + dest[i][GCOMP]; const GLint b = DIV255((rgba[i][BCOMP] - dest[i][BCOMP]) * t) + dest[i][BCOMP]; const GLint a = DIV255((rgba[i][ACOMP] - dest[i][ACOMP]) * t) + dest[i][ACOMP]; + #undef DIV255 #elif CHAN_BITS == 16 const GLfloat tt = (GLfloat) t / CHAN_MAXF; @@ -187,6 +186,16 @@ blend_add( GLcontext *ctx, GLuint n, const GLubyte mask[], for (i=0;i<n;i++) { if (mask[i]) { +#if CHAN_TYPE == GL_FLOAT + GLfloat r = rgba[i][RCOMP] + dest[i][RCOMP]; + GLfloat g = rgba[i][GCOMP] + dest[i][GCOMP]; + GLfloat b = rgba[i][BCOMP] + dest[i][BCOMP]; + GLfloat a = rgba[i][ACOMP] + dest[i][ACOMP]; + rgba[i][RCOMP] = (GLchan) MIN2( r, CHAN_MAXF ); + rgba[i][GCOMP] = (GLchan) MIN2( g, CHAN_MAXF ); + rgba[i][BCOMP] = (GLchan) MIN2( b, CHAN_MAXF ); + rgba[i][ACOMP] = (GLchan) MIN2( a, CHAN_MAXF ); +#else GLint r = rgba[i][RCOMP] + dest[i][RCOMP]; GLint g = rgba[i][GCOMP] + dest[i][GCOMP]; GLint b = rgba[i][BCOMP] + dest[i][BCOMP]; @@ -195,6 +204,7 @@ blend_add( GLcontext *ctx, GLuint n, const GLubyte mask[], rgba[i][GCOMP] = (GLchan) MIN2( g, CHAN_MAX ); rgba[i][BCOMP] = (GLchan) MIN2( b, CHAN_MAX ); rgba[i][ACOMP] = (GLchan) MIN2( a, CHAN_MAX ); +#endif } } } |