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Double-buffer generated instructions and only notify driver when the

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generated program differs from the previous one.
This commit is contained in:
Keith Whitwell
2005-05-10 13:57:50 +00:00
parent f29f2fc294
commit dbeea25bb8
2 changed files with 48 additions and 13 deletions
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29
src/mesa/main/texenvprogram.c
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@@ -687,6 +687,8 @@ void _mesa_UpdateTexEnvProgram( GLcontext *ctx )
struct texenv_fragment_program p;
GLuint unit;
struct ureg cf, out;
GLuint db_NumInstructions;
struct fp_instruction *db_Instructions;
if (ctx->FragmentProgram._Enabled)
return;
@@ -699,10 +701,10 @@ void _mesa_UpdateTexEnvProgram( GLcontext *ctx )
p.ctx = ctx;
p.program = ctx->_TexEnvProgram;
if (p.program->Instructions == NULL) {
p.program->Instructions = MALLOC(sizeof(struct fp_instruction) * 100);
}
db_Instructions = p.program->Instructions;
db_NumInstructions = p.program->Base.NumInstructions;
p.program->Instructions = MALLOC(sizeof(struct fp_instruction) * 100);
p.program->Base.NumInstructions = 0;
p.program->Base.Target = GL_FRAGMENT_PROGRAM_ARB;
p.program->NumTexIndirections = 1; /* correct? */
@@ -713,9 +715,12 @@ void _mesa_UpdateTexEnvProgram( GLcontext *ctx )
p.program->Base.NumTemporaries =
p.program->Base.NumParameters =
p.program->Base.NumAttributes = p.program->Base.NumAddressRegs = 0;
if (p.program->Parameters)
_mesa_free_parameter_list(p.program->Parameters);
p.program->Parameters = _mesa_new_parameter_list();
_mesa_free_parameters(p.program->Parameters);
else
p.program->Parameters = _mesa_new_parameter_list();
p.program->InputsRead = 0;
p.program->OutputsWritten = 0;
@@ -778,10 +783,18 @@ void _mesa_UpdateTexEnvProgram( GLcontext *ctx )
_mesa_printf("\n");
#endif
/* Notify driver the fragment program has (potentially) changed.
/* Notify driver the fragment program has (actually) changed.
*/
ctx->Driver.ProgramStringNotify( ctx, GL_FRAGMENT_PROGRAM_ARB,
p.program );
if (db_Instructions == NULL ||
db_NumInstructions != p.program->Base.NumInstructions ||
memcmp(db_Instructions, p.program->Instructions,
db_NumInstructions * sizeof(*db_Instructions)) != 0) {
_mesa_printf("new program string\n");
ctx->Driver.ProgramStringNotify( ctx, GL_FRAGMENT_PROGRAM_ARB,
&p.program->Base );
}
FREE(db_Instructions);
}