From adbbea9b5123b7866cf5b31a6011b428b5ccc079 Mon Sep 17 00:00:00 2001
From: Kendall Bennett <KendallB@scitechsoft.com>
Date: Thu, 2 Oct 2003 23:50:44 +0000
Subject: Fixed bugs in Mesa software span rendering for color index modes

---
 src/mesa/swrast/s_spantemp.h | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

(limited to 'src/mesa/swrast/s_spantemp.h')

diff --git a/src/mesa/swrast/s_spantemp.h b/src/mesa/swrast/s_spantemp.h
index 3452b0b2842..c48b35b90a8 100644
--- a/src/mesa/swrast/s_spantemp.h
+++ b/src/mesa/swrast/s_spantemp.h
@@ -188,6 +188,7 @@ NAME(read_rgba_pixels)( const GLcontext *ctx,
    SPAN_VARS
 #endif
    GLuint i;
+   ASSERT(mask);
    for (i = 0; i < n; i++) {
       if (mask[i]) {
          INIT_PIXEL_PTR(pixel, x[i], y[i]);
@@ -221,9 +222,6 @@ NAME(write_index32_span)( const GLcontext *ctx, GLuint n, GLint x, GLint y,
          INC_PIXEL_PTR(pixel);
       }
    }
-   else if (sizeof(*pixel) == sizeof(GLuint)) {
-      _mesa_memcpy(pixel, index, n * sizeof(GLuint));
-   }
    else {
       for (i = 0; i < n; i++) {
          STORE_CI_PIXEL(pixel, index[i]);
@@ -250,9 +248,6 @@ NAME(write_index8_span)( const GLcontext *ctx, GLuint n, GLint x, GLint y,
          INC_PIXEL_PTR(pixel);
       }
    }
-   else if (sizeof(*pixel) == sizeof(GLubyte)) {
-      _mesa_memcpy(pixel, index, n * sizeof(GLubyte));
-   }
    else {
       for (i = 0; i < n; i++) {
          STORE_CI_PIXEL(pixel, index[i]);
@@ -271,12 +266,20 @@ NAME(write_monoindex_span)( const GLcontext *ctx, GLuint n, GLint x, GLint y,
 #endif
    GLuint i;
    INIT_PIXEL_PTR(pixel, x, y);
-   for (i = 0; i < n; i++) {
-      if (mask[i]) {
+   if (mask) {
+      for (i = 0; i < n; i++) {
+         if (mask[i]) {
+            STORE_CI_PIXEL(pixel, colorIndex);
+         }
+         INC_PIXEL_PTR(pixel);
+      }
+   }      
+   else {
+      for (i = 0; i < n; i++) {
          STORE_CI_PIXEL(pixel, colorIndex);
+         INC_PIXEL_PTR(pixel);
       }
-      INC_PIXEL_PTR(pixel);
-   }
+   }      
 }
 
 
@@ -289,6 +292,7 @@ NAME(write_index_pixels)( const GLcontext *ctx,
    SPAN_VARS
 #endif
    GLuint i;
+   ASSERT(mask);
    for (i = 0; i < n; i++) {
       if (mask[i]) {
          INIT_PIXEL_PTR(pixel, x[i], y[i]);
@@ -307,6 +311,7 @@ NAME(write_monoindex_pixels)( const GLcontext *ctx,
    SPAN_VARS
 #endif
    GLuint i;
+   ASSERT(mask);
    for (i = 0; i < n; i++) {
       if (mask[i]) {
          INIT_PIXEL_PTR(pixel, x[i], y[i]);
@@ -341,6 +346,7 @@ NAME(read_index_pixels)( const GLcontext *ctx,
    SPAN_VARS
 #endif
    GLuint i;
+   ASSERT(mask);
    for (i = 0; i < n; i++) {
       if (mask[i] ) {
          INIT_PIXEL_PTR(pixel, x[i], y[i]);
-- 
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