/**
* Context state for GLSL vertex/fragment shaders.
+ * Extended to support pipeline object
*/
-struct gl_shader_state
+struct gl_pipeline_object
{
+ /** Name of the pipeline object as received from glGenProgramPipelines.
+ * It would be 0 for shaders without separate shader objects.
+ */
+ GLuint Name;
+
GLint RefCount;
_glthread_Mutex Mutex;
GLbitfield Flags; /**< Mask of GLSL_x flags */
};
+/**
+ * Context state for GLSL pipeline shaders.
+ */
+struct gl_pipeline_shader_state
+{
+ /** Currently bound pipeline object. See _mesa_BindProgramPipeline() */
+ struct gl_pipeline_object *Current;
+
+ /** Pipeline objects */
+ struct _mesa_HashTable *Objects;
+};
/**
* Compiler options for a single GLSL shaders type
struct gl_geometry_program_state GeometryProgram;
struct gl_ati_fragment_shader_state ATIFragmentShader;
- struct gl_shader_state Shader; /**< GLSL shader object state */
+ struct gl_pipeline_shader_state Pipeline; /**< GLSL pipeline shader object state */
+ struct gl_pipeline_object Shader; /**< GLSL shader object state */
struct gl_shader_compiler_options ShaderCompilerOptions[MESA_SHADER_STAGES];
struct gl_query_state Query; /**< occlusion, timer queries */
*
* Implementation of pipeline object related API functions. Based on
* GL_ARB_separate_shader_objects extension.
- *
*/
#include "main/glheader.h"
#include "../glsl/glsl_parser_extras.h"
#include "../glsl/ir_uniform.h"
+/**
+ * Delete a pipeline object.
+ */
+void
+_mesa_delete_pipeline_object(struct gl_context *ctx,
+ struct gl_pipeline_object *obj)
+{
+ unsinged i;
+
+ _mesa_reference_shader_program(ctx, &obj->_CurrentFragmentProgram, NULL);
+
+ for (i = 0; i < MESA_SHADER_STAGES; i++)
+ _mesa_reference_shader_program(ctx, &obj->CurrentProgram[i], NULL);
+
+ _mesa_reference_shader_program(ctx, &obj->ActiveProgram, NULL);
+ _glthread_DESTROY_MUTEX(obj->Mutex);
+ ralloc_free(obj);
+}
+
+/**
+ * Allocate and initialize a new pipeline object.
+ */
+static struct gl_pipeline_object *
+_mesa_new_pipeline_object(struct gl_context *ctx, GLuint name)
+{
+ struct gl_pipeline_object *obj = rzalloc(NULL, struct gl_pipeline_object);
+ if (obj) {
+ obj->Name = name;
+ _glthread_INIT_MUTEX(obj->Mutex);
+ obj->RefCount = 1;
+ obj->Flags = _mesa_get_shader_flags();
+ }
+
+ return obj;
+}
+
+/**
+ * Initialize pipeline object state for given context.
+ */
+void
+_mesa_init_pipeline(struct gl_context *ctx)
+{
+ ctx->Pipeline.Objects = _mesa_NewHashTable();
+
+ ctx->Pipeline.Current = NULL;
+}
+
+
+/**
+ * Callback for deleting a pipeline object. Called by _mesa_HashDeleteAll().
+ */
+static void
+delete_pipelineobj_cb(GLuint id, void *data, void *userData)
+{
+ struct gl_pipeline_object *obj = (struct gl_pipeline_object *) data;
+ struct gl_context *ctx = (struct gl_context *) userData;
+ _mesa_delete_pipeline_object(ctx, obj);
+}
+
+
+/**
+ * Free pipeline state for given context.
+ */
+void
+_mesa_free_pipeline_data(struct gl_context *ctx)
+{
+ _mesa_HashDeleteAll(ctx->Pipeline.Objects, delete_pipelineobj_cb, ctx);
+ _mesa_DeleteHashTable(ctx->Pipeline.Objects);
+}
+
+/**
+ * Look up the pipeline object for the given ID.
+ *
+ * \returns
+ * Either a pointer to the pipeline object with the specified ID or \c NULL for
+ * a non-existent ID. The spec defines ID 0 as being technically
+ * non-existent.
+ */
+static inline struct gl_pipeline_object *
+lookup_pipeline_object(struct gl_context *ctx, GLuint id)
+{
+ if (id == 0)
+ return NULL;
+ else
+ return (struct gl_pipeline_object *)
+ _mesa_HashLookup(ctx->Pipeline.Objects, id);
+}
+
+/**
+ * Add the given pipeline object to the pipeline object pool.
+ */
+static void
+save_pipeline_object(struct gl_context *ctx, struct gl_pipeline_object *obj)
+{
+ if (obj->Name > 0) {
+ _mesa_HashInsert(ctx->Pipeline.Objects, obj->Name, obj);
+ }
+}
+
+/**
+ * Remove the given pipeline object from the pipeline object pool.
+ * Do not deallocate the pipeline object though.
+ */
+static void
+remove_pipeline_object(struct gl_context *ctx, struct gl_pipeline_object *obj)
+{
+ if (obj->Name > 0) {
+ _mesa_HashRemove(ctx->Pipeline.Objects, obj->Name);
+ }
+}
+
+/**
+ * Set ptr to obj w/ reference counting.
+ * Note: this should only be called from the _mesa_reference_pipeline_object()
+ * inline function.
+ */
+void
+_mesa_reference_pipeline_object_(struct gl_context *ctx,
+ struct gl_pipeline_object **ptr,
+ struct gl_pipeline_object *obj)
+{
+ assert(*ptr != obj);
+
+ if (*ptr) {
+ /* Unreference the old pipeline object */
+ GLboolean deleteFlag = GL_FALSE;
+ struct gl_pipeline_object *oldObj = *ptr;
+
+ _glthread_LOCK_MUTEX(oldObj->Mutex);
+ ASSERT(oldObj->RefCount > 0);
+ oldObj->RefCount--;
+ deleteFlag = (oldObj->RefCount == 0);
+ _glthread_UNLOCK_MUTEX(oldObj->Mutex);
+
+ if (deleteFlag) {
+ _mesa_delete_pipeline_object(ctx, oldObj);
+ }
+
+ *ptr = NULL;
+ }
+ ASSERT(!*ptr);
+
+ if (obj) {
+ /* reference new pipeline object */
+ _glthread_LOCK_MUTEX(obj->Mutex);
+ if (obj->RefCount == 0) {
+ /* this pipeline's being deleted (look just above) */
+ /* Not sure this can ever really happen. Warn if it does. */
+ _mesa_problem(NULL, "referencing deleted pipeline object");
+ *ptr = NULL;
+ }
+ else {
+ obj->RefCount++;
+ *ptr = obj;
+ }
+ _glthread_UNLOCK_MUTEX(obj->Mutex);
+ }
+}
/**
* Bound program to severals stages of the pipeline
struct _glapi_table;
struct gl_context;
+struct gl_pipeline_object;
+
+extern void
+_mesa_delete_pipeline_object(struct gl_context *ctx, struct gl_pipeline_object *obj);
+
+extern void
+_mesa_init_pipeline(struct gl_context *ctx);
+
+extern void
+_mesa_free_pipeline_data(struct gl_context *ctx);
+
+extern void
+_mesa_reference_pipeline_object_(struct gl_context *ctx,
+ struct gl_pipeline_object **ptr,
+ struct gl_pipeline_object *obj);
+
+static inline void
+_mesa_reference_pipeline_object(struct gl_context *ctx,
+ struct gl_pipeline_object **ptr,
+ struct gl_pipeline_object *obj)
+{
+ if (*ptr != obj)
+ _mesa_reference_pipeline_object_(ctx, ptr, obj);
+}
+
extern void GLAPIENTRY
_mesa_UseProgramStages(GLuint pipeline, GLbitfield stages, GLuint program);
projects / mesa.git / commitdiff