diff options
| author | Brian Paul <[email protected]> | 2009-04-06 14:38:09 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2009-04-06 14:38:09 -0600 |
| commit | 87c356a222bb97ecf9b04e8d509b103199159b11 (patch) | |
| tree | f1cc558f56eac0c59af7081e9515f026ba3846e5 | |
| parent | 89276e2aafd837dbf4eefaa28388109271d6d07d (diff) | |
swrast: fix incorrect arithmetic for GL_ADD_SIGNED/GL_COMBINE4_NV mode
| -rw-r--r-- | src/mesa/swrast/s_texcombine.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/mesa/swrast/s_texcombine.c b/src/mesa/swrast/s_texcombine.c index 2c694c25cba..08752f34331 100644 --- a/src/mesa/swrast/s_texcombine.c +++ b/src/mesa/swrast/s_texcombine.c @@ -316,12 +316,12 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n, if (textureUnit->EnvMode == GL_COMBINE4_NV) { /* (a * b) + (c * d) - 0.5 */ for (i = 0; i < n; i++) { - rgba[i][RCOMP] = (arg0[i][RCOMP] + arg1[i][RCOMP] * - arg2[i][RCOMP] + arg3[i][RCOMP] - 0.5) * scaleRGB; - rgba[i][GCOMP] = (arg0[i][GCOMP] + arg1[i][GCOMP] * - arg2[i][GCOMP] + arg3[i][GCOMP] - 0.5) * scaleRGB; - rgba[i][BCOMP] = (arg0[i][BCOMP] + arg1[i][BCOMP] * - arg2[i][BCOMP] + arg3[i][BCOMP] - 0.5) * scaleRGB; + rgba[i][RCOMP] = (arg0[i][RCOMP] * arg1[i][RCOMP] + + arg2[i][RCOMP] * arg3[i][RCOMP] - 0.5) * scaleRGB; + rgba[i][GCOMP] = (arg0[i][GCOMP] * arg1[i][GCOMP] + + arg2[i][GCOMP] * arg3[i][GCOMP] - 0.5) * scaleRGB; + rgba[i][BCOMP] = (arg0[i][BCOMP] * arg1[i][BCOMP] + + arg2[i][BCOMP] * arg3[i][BCOMP] - 0.5) * scaleRGB; } } else { |