KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mesa: Compact state key for TexEnv program cache 

By rearranging the bitfields within the key we can reduce the size
of the key from 644 to 196 bytes, reducing the cost of both the
hashing and equality tests.
This commit is contained in:
Chris Wilson 2009-09-02 05:11:25 -07:00 committed by Brian Paul
parent c0cf0fd163
commit a46e32787d
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/mesa/main/texenvprogram.c
View File

@ -82,8 +82,8 @@ texenv_doing_secondary_color(GLcontext *ctx)
#define DISASSEM (MESA_VERBOSE & VERBOSE_DISASSEM)
struct mode_opt {
GLuint Source:4; /**< SRC_x */
GLuint Operand:3; /**< OPR_x */
GLubyte Source:4; /**< SRC_x */
GLubyte Operand:3; /**< OPR_x */
};
struct state_key {
@ -103,10 +103,11 @@ struct state_key {
GLuint NumArgsRGB:3; /**< up to MAX_COMBINER_TERMS */
GLuint ModeRGB:5; /**< MODE_x */
struct mode_opt OptRGB[MAX_COMBINER_TERMS];
GLuint NumArgsA:3; /**< up to MAX_COMBINER_TERMS */
GLuint ModeA:5; /**< MODE_x */
struct mode_opt OptRGB[MAX_COMBINER_TERMS];
struct mode_opt OptA[MAX_COMBINER_TERMS];
} unit[MAX_TEXTURE_UNITS];
};
@ -1497,6 +1498,7 @@ _mesa_get_fixed_func_fragment_program(GLcontext *ctx)
struct gl_fragment_program *prog;
struct state_key key;
printf("SIZE OF KEY %d\n", sizeof(key));
make_state_key(ctx, &key);
prog = (struct gl_fragment_program *)