Looks great Chris.
Keith
On Wed, 2009-09-02 at 05:11 -0700, Chris Wilson wrote:
> 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.
> ---
> src/mesa/main/texenvprogram.c | 7 ++++---
> 1 files changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c
> index 5913957..3851937 100644
> --- a/src/mesa/main/texenvprogram.c
> +++ b/src/mesa/main/texenvprogram.c
> @@ -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];
> };
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