mesa: added const qualifiers, move local var

diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c
index 050a3a99fed9439c477d0d9cf4759cad9384a7e0..454d97506ed99d686cd778d11a6743b5fe2a1ba8 100644 (file)
--- a/src/mesa/main/texenvprogram.c
+++ b/src/mesa/main/texenvprogram.c
@@ -936,7 +936,7 @@ static struct ureg emit_combine_source( struct texenv_fragment_program *p,
    }
 }
 
-static GLboolean args_match( struct state_key *key, GLuint unit )
+static GLboolean args_match( const struct state_key *key, GLuint unit )
 {
    GLuint i, nr = key->unit[unit].NumArgsRGB;
 
@@ -1096,11 +1096,10 @@ static struct ureg emit_combine( struct texenv_fragment_program *p,
 static struct ureg
 emit_texenv(struct texenv_fragment_program *p, GLuint unit)
 {
-   struct state_key *key = p->state;
+   const struct state_key *key = p->state;
    GLboolean saturate;
    GLuint rgb_shift, alpha_shift;
-   struct ureg out, shift;
-   struct ureg dest;
+   struct ureg out, dest;
 
    if (!key->unit[unit].enabled) {
       return get_source(p, SRC_PREVIOUS, 0);
@@ -1152,7 +1151,6 @@ emit_texenv(struct texenv_fragment_program *p, GLuint unit)
    }
    else if (key->unit[unit].ModeRGB == MODE_DOT3_RGBA_EXT ||
            key->unit[unit].ModeRGB == MODE_DOT3_RGBA) {
-
       out = emit_combine( p, dest, WRITEMASK_XYZW, saturate,
                          unit,
                          key->unit[unit].NumArgsRGB,
@@ -1178,7 +1176,10 @@ emit_texenv(struct texenv_fragment_program *p, GLuint unit)
    /* Deal with the final shift:
     */
    if (alpha_shift || rgb_shift) {
+      struct ureg shift;
+
       saturate = GL_TRUE;  /* always saturate at this point */
+
       if (rgb_shift == alpha_shift) {
         shift = register_scalar_const(p, (GLfloat)(1<<rgb_shift));
       }
@@ -1278,7 +1279,7 @@ static GLboolean load_texenv_source( struct texenv_fragment_program *p,
 static GLboolean
 load_texunit_sources( struct texenv_fragment_program *p, int unit )
 {
-   struct state_key *key = p->state;
+   const struct state_key *key = p->state;
    GLuint i;
 
    for (i = 0; i < key->unit[unit].NumArgsRGB; i++) {
@@ -1298,7 +1299,7 @@ load_texunit_sources( struct texenv_fragment_program *p, int unit )
 static GLboolean
 load_texunit_bumpmap( struct texenv_fragment_program *p, int unit )
 {
-   struct state_key *key = p->state;
+   const struct state_key *key = p->state;
    GLuint bumpedUnitNr = key->unit[unit].OptRGB[1].Source - SRC_TEXTURE0;
    struct ureg texcDst, bumpMapRes;
    struct ureg constdudvcolor = register_const4f(p, 0.0, 0.0, 0.0, 1.0);