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mesa: add #define FEATURE_ARB_pixel_buffer_object
[mesa.git]
/
src
/
mesa
/
main
/
light.h
diff --git
a/src/mesa/main/light.h
b/src/mesa/main/light.h
index f47fe58a83932f832b9a4358d8ba3f5c1521f1cc..b97e17b5be4e5f55ad4babd3bd71b124ed47c456 100644
(file)
--- a/
src/mesa/main/light.h
+++ b/
src/mesa/main/light.h
@@
-92,7
+92,8
@@
do { \
struct gl_shine_tab *_tab = table; \
float f = (dp * (SHINE_TABLE_SIZE-1)); \
int k = (int) f; \
struct gl_shine_tab *_tab = table; \
float f = (dp * (SHINE_TABLE_SIZE-1)); \
int k = (int) f; \
- if (k > SHINE_TABLE_SIZE-2) \
+ if (k < 0 /* gcc may cast an overflow float value to negative int value*/ \
+ || k > SHINE_TABLE_SIZE-2) \
result = (GLfloat) _mesa_pow( dp, _tab->shininess ); \
else \
result = _tab->tab[k] + (f-k)*(_tab->tab[k+1]-_tab->tab[k]); \
result = (GLfloat) _mesa_pow( dp, _tab->shininess ); \
else \
result = _tab->tab[k] + (f-k)*(_tab->tab[k+1]-_tab->tab[k]); \