diff options
| -rw-r--r-- | src/mesa/drivers/dri/i915/i915_program.c | 51 |
1 files changed, 26 insertions, 25 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_program.c b/src/mesa/drivers/dri/i915/i915_program.c index ca1949b223e..507adf1d3dc 100644 --- a/src/mesa/drivers/dri/i915/i915_program.c +++ b/src/mesa/drivers/dri/i915/i915_program.c @@ -538,6 +538,7 @@ i915_upload_program(struct i915_context *i915, { GLuint program_size = p->csr - p->program; GLuint decl_size = p->decl - p->declarations; + GLuint nr; if (p->error) return; @@ -554,32 +555,32 @@ i915_upload_program(struct i915_context *i915, i915->state.ProgramSize = decl_size + program_size; } - /* Always seemed to get a failure if I used memcmp() to - * shortcircuit this state upload. Needs further investigation? - */ - if (p->nr_constants) { - GLuint nr = p->nr_constants; - - I915_ACTIVESTATE(i915, I915_UPLOAD_CONSTANTS, 1); - I915_STATECHANGE(i915, I915_UPLOAD_CONSTANTS); - - i915->state.Constant[0] = _3DSTATE_PIXEL_SHADER_CONSTANTS | ((nr) * 4); - i915->state.Constant[1] = (1 << (nr - 1)) | ((1 << (nr - 1)) - 1); - - memcpy(&i915->state.Constant[2], p->constant, 4 * sizeof(int) * (nr)); - i915->state.ConstantSize = 2 + (nr) * 4; - - if (0) { - GLuint i; - for (i = 0; i < nr; i++) { - fprintf(stderr, "const[%d]: %f %f %f %f\n", i, - p->constant[i][0], - p->constant[i][1], p->constant[i][2], p->constant[i][3]); - } + nr = p->nr_constants; + if (i915->state.ConstantSize != 2 + nr*4 || + memcmp(i915->state.Constant + 2, + p->constant, 4*sizeof(int)*nr)) { + if (nr) { + I915_ACTIVESTATE(i915, I915_UPLOAD_CONSTANTS, 1); + I915_STATECHANGE(i915, I915_UPLOAD_CONSTANTS); + + i915->state.Constant[0] = _3DSTATE_PIXEL_SHADER_CONSTANTS | (nr * 4); + i915->state.Constant[1] = (1 << nr) -1; + + memcpy(&i915->state.Constant[2], p->constant, 4 * sizeof(int) * nr); + i915->state.ConstantSize = 2 + nr * 4; + + if (0) { + GLuint i; + for (i = 0; i < nr; i++) { + fprintf(stderr, "const[%d]: %f %f %f %f\n", i, + p->constant[i][0], + p->constant[i][1], p->constant[i][2], p->constant[i][3]); + } + } + } + else { + I915_ACTIVESTATE(i915, I915_UPLOAD_CONSTANTS, 0); } - } - else { - I915_ACTIVESTATE(i915, I915_UPLOAD_CONSTANTS, 0); } p->on_hardware = 1; |