From c4fe46f0b8b45407ea40500b869ae1beca71063c Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Thu, 27 Apr 2006 02:50:31 +0000
Subject: fixes for CHAN_BITS!=8

---
 src/mesa/main/colortab.c | 64 +++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 50 insertions(+), 14 deletions(-)

(limited to 'src/mesa/main')

diff --git a/src/mesa/main/colortab.c b/src/mesa/main/colortab.c
index e2f95cf7f9b..8b6fc127fe9 100644
--- a/src/mesa/main/colortab.c
+++ b/src/mesa/main/colortab.c
@@ -767,7 +767,11 @@ _mesa_GetColorTable( GLenum target, GLenum format,
                rgba[i][RCOMP] = 0;
                rgba[i][GCOMP] = 0;
                rgba[i][BCOMP] = 0;
+#if CHAN_BITS==32
+               rgba[i][ACOMP] = tableF[i];
+#else
                rgba[i][ACOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+#endif
             }
          }
          else {
@@ -786,18 +790,25 @@ _mesa_GetColorTable( GLenum target, GLenum format,
             const GLfloat *tableF = (const GLfloat *) table->Table;
             GLuint i;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][GCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+#if CHAN_BITS==32
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
+               rgba[i][BCOMP] = tableF[i];
+               rgba[i][ACOMP] = CHAN_MAX;
+#else
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
                rgba[i][BCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
                rgba[i][ACOMP] = CHAN_MAX;
+#endif
             }
          }
          else {
             const GLchan *tableUB = (const GLchan *) table->Table;
             GLuint i;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = tableUB[i];
-               rgba[i][GCOMP] = tableUB[i];
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
                rgba[i][BCOMP] = tableUB[i];
                rgba[i][ACOMP] = CHAN_MAX;
             }
@@ -808,18 +819,25 @@ _mesa_GetColorTable( GLenum target, GLenum format,
             const GLfloat *tableF = (const GLfloat *) table->Table;
             GLuint i;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = IROUND_POS(tableF[i*2+0] * CHAN_MAXF);
-               rgba[i][GCOMP] = IROUND_POS(tableF[i*2+0] * CHAN_MAXF);
+#if CHAN_BITS==32
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
+               rgba[i][BCOMP] = tableF[i*2+0];
+               rgba[i][ACOMP] = tableF[i*2+1];
+#else
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
                rgba[i][BCOMP] = IROUND_POS(tableF[i*2+0] * CHAN_MAXF);
                rgba[i][ACOMP] = IROUND_POS(tableF[i*2+1] * CHAN_MAXF);
+#endif
             }
          }
          else {
             const GLchan *tableUB = (const GLchan *) table->Table;
             GLuint i;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = tableUB[i*2+0];
-               rgba[i][GCOMP] = tableUB[i*2+0];
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
                rgba[i][BCOMP] = tableUB[i*2+0];
                rgba[i][ACOMP] = tableUB[i*2+1];
             }
@@ -830,19 +848,26 @@ _mesa_GetColorTable( GLenum target, GLenum format,
             const GLfloat *tableF = (const GLfloat *) table->Table;
             GLuint i;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][GCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
-               rgba[i][BCOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+#if CHAN_BITS==32
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
+               rgba[i][BCOMP] =
+               rgba[i][ACOMP] = tableF[i];
+#else
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
+               rgba[i][BCOMP] =
                rgba[i][ACOMP] = IROUND_POS(tableF[i] * CHAN_MAXF);
+#endif
             }
          }
          else {
             const GLchan *tableUB = (const GLchan *) table->Table;
             GLuint i;
             for (i = 0; i < table->Size; i++) {
-               rgba[i][RCOMP] = tableUB[i];
-               rgba[i][GCOMP] = tableUB[i];
-               rgba[i][BCOMP] = tableUB[i];
+               rgba[i][RCOMP] =
+               rgba[i][GCOMP] =
+               rgba[i][BCOMP] =
                rgba[i][ACOMP] = tableUB[i];
             }
          }
@@ -852,10 +877,17 @@ _mesa_GetColorTable( GLenum target, GLenum format,
             const GLfloat *tableF = (const GLfloat *) table->Table;
             GLuint i;
             for (i = 0; i < table->Size; i++) {
+#if CHAN_BITS==32
+               rgba[i][RCOMP] = tableF[i*3+0];
+               rgba[i][GCOMP] = tableF[i*3+1];
+               rgba[i][BCOMP] = tableF[i*3+2];
+               rgba[i][ACOMP] = CHAN_MAX;
+#else
                rgba[i][RCOMP] = IROUND_POS(tableF[i*3+0] * CHAN_MAXF);
                rgba[i][GCOMP] = IROUND_POS(tableF[i*3+1] * CHAN_MAXF);
                rgba[i][BCOMP] = IROUND_POS(tableF[i*3+2] * CHAN_MAXF);
                rgba[i][ACOMP] = CHAN_MAX;
+#endif
             }
          }
          else {
@@ -872,6 +904,9 @@ _mesa_GetColorTable( GLenum target, GLenum format,
       case GL_RGBA:
          if (table->Type == GL_FLOAT) {
             const GLfloat *tableF = (const GLfloat *) table->Table;
+#if CHAN_BITS==32
+            _mesa_memcpy(rgba, tableF, 4 * table->Size * sizeof(GLfloat));
+#else
             GLuint i;
             for (i = 0; i < table->Size; i++) {
                rgba[i][RCOMP] = IROUND_POS(tableF[i*4+0] * CHAN_MAXF);
@@ -879,6 +914,7 @@ _mesa_GetColorTable( GLenum target, GLenum format,
                rgba[i][BCOMP] = IROUND_POS(tableF[i*4+2] * CHAN_MAXF);
                rgba[i][ACOMP] = IROUND_POS(tableF[i*4+3] * CHAN_MAXF);
             }
+#endif
          }
          else {
             const GLchan *tableUB = (const GLchan *) table->Table;
-- 
cgit v1.2.3