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glsl: Use layer numbers not unit numbers for builtin uniforms

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When generating GLSL code, the names of the builtin uniforms for the
sampler and the layer constant have been renamed to use the layer
number not the unit number. This will make it easier if we ever want
to make them public.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts
2012-02-10 14:17:10 +00:00
parent e6b3bfa41a
commit aa9c293502
2 changed files with 6 additions and 8 deletions

10
cogl/cogl-pipeline-fragend-glsl.c

@ -367,11 +367,9 @@ add_constant_lookup (CoglPipelineShaderState *shader_state,
CoglPipelineLayer *layer,
const char *swizzle)
{
int unit_index = _cogl_pipeline_layer_get_unit_index (layer);
g_string_append_printf (shader_state->header,
"_cogl_layer_constant_%i.%s",
unit_index, swizzle);
layer->index, swizzle);
}
static void
@ -456,7 +454,7 @@ ensure_texture_lookup_generated (CoglPipelineShaderState *shader_state,
g_string_append_printf (shader_state->header,
"uniform sampler%s _cogl_sampler_%i;\n",
target_string,
unit_index);
layer->index);
g_string_append_printf (shader_state->header,
"vec4\n"
@ -471,7 +469,7 @@ ensure_texture_lookup_generated (CoglPipelineShaderState *shader_state,
else
g_string_append_printf (shader_state->header,
"texture%s (_cogl_sampler_%i, coords.%s);\n",
target_string, unit_index, tex_coord_swizzle);
target_string, layer->index, tex_coord_swizzle);
g_string_append (shader_state->header, "}\n");
}
@ -612,7 +610,7 @@ ensure_arg_generated (CoglPipeline *pipeline,
{
g_string_append_printf (shader_state->header,
"uniform vec4 _cogl_layer_constant_%i;\n",
unit_index);
layer->index);
shader_state->unit_state[unit_index].combine_constant_used = TRUE;
}
}

4
cogl/cogl-pipeline-progend-glsl.c

@ -371,7 +371,7 @@ get_uniform_cb (CoglPipeline *pipeline,
the program has now been linked */
g_string_set_size (ctx->codegen_source_buffer, 0);
g_string_append_printf (ctx->codegen_source_buffer,
"_cogl_sampler_%i", state->unit);
"_cogl_sampler_%i", layer_index);
GE_RET( uniform_location,
ctx, glGetUniformLocation (state->gl_program,
@ -386,7 +386,7 @@ get_uniform_cb (CoglPipeline *pipeline,
g_string_set_size (ctx->codegen_source_buffer, 0);
g_string_append_printf (ctx->codegen_source_buffer,
"_cogl_layer_constant_%i", state->unit);
"_cogl_layer_constant_%i", layer_index);
GE_RET( uniform_location,
ctx, glGetUniformLocation (state->gl_program,