This will be used for validating SSO pipeline where all active stages
in linked programs should be in use when rendering.
Signed-off-by: Tapani Pälli <tapani.pa...@intel.com>
---
src/mesa/main/mtypes.h | 2 ++
src/mesa/main/pipelineobj.c | 39 +++++++++++++++++++++++++++++++++++++++
2 files changed, 41 insertions(+)
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index fa7ead0..d5a22c9 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2824,6 +2824,8 @@ struct gl_pipeline_object
GLboolean Validated; /**< Pipeline Validation status */
GLchar *InfoLog;
+
+ uint8_t ActiveStages; /**< Stages used, (glUseProgramStages)
*/
};
/**
diff --git a/src/mesa/main/pipelineobj.c b/src/mesa/main/pipelineobj.c
index 6710d0d..c510ee8 100644
--- a/src/mesa/main/pipelineobj.c
+++ b/src/mesa/main/pipelineobj.c
@@ -218,6 +218,43 @@ _mesa_reference_pipeline_object_(struct gl_context *ctx,
}
}
+static GLenum
+shader_bit_from_shader_stage(gl_shader_stage stage)
+{
+ switch (stage) {
+ case MESA_SHADER_VERTEX:
+ return GL_VERTEX_SHADER_BIT;
+ case MESA_SHADER_FRAGMENT:
+ return GL_FRAGMENT_SHADER_BIT;
+ case MESA_SHADER_GEOMETRY:
+ return GL_GEOMETRY_SHADER_BIT;
+ case MESA_SHADER_TESS_CTRL:
+ return GL_TESS_CONTROL_SHADER_BIT;
+ case MESA_SHADER_TESS_EVAL:
+ return GL_TESS_EVALUATION_SHADER_BIT;
+ case MESA_SHADER_COMPUTE:
+ return GL_COMPUTE_SHADER_BIT;
+ default:
+ unreachable("bad value in _mesa_shader_bit_from_shader_stage()");
+ }
+}
+
+static void
+update_active_pipeline_stages(struct gl_pipeline_object *pipe,
+ struct gl_shader_program *shProg,
+ GLbitfield stages)
+{
+ unsigned i;
+ for (i = 0; i < MESA_SHADER_STAGES; i++) {
+ if ((stages & shader_bit_from_shader_stage(i)) != 0) {
+ if (shProg && shProg->ActiveStages & (1 << i))
+ pipe->ActiveStages |= (1 << i);
+ else
+ pipe->ActiveStages &= ~(1 << i);
+ }
+ }
+}
+
/**
* Bound program to severals stages of the pipeline
*/
@@ -311,6 +348,8 @@ _mesa_UseProgramStages(GLuint pipeline, GLbitfield stages,
GLuint program)
}
}
+ update_active_pipeline_stages(pipe, shProg, stages);
+
/* Enable individual stages from the program as requested by the
* application. If there is no shader for a requested stage in the
* program, _mesa_use_shader_program will enable fixed-function processing
--
2.5.0
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
