/* user-space vertex data, buffers */
struct {
- const unsigned *edgeflag;
-
/** vertex element/index buffer (ex: glDrawElements) */
const void *elts;
/** bytes per index (0, 1, 2 or 4) */
/** vertex arrays */
const void *vbuffer[PIPE_MAX_ATTRIBS];
- /** constant buffer (for vertex shader) */
- const void *constants;
+ /** constant buffer (for vertex/geometry shader) */
+ const void *vs_constants;
+ const void *gs_constants;
} user;
boolean test_fse; /* enable FSE even though its not correct (eg for softpipe) */
struct draw_vertex_shader *vertex_shader;
uint num_vs_outputs; /**< convenience, from vertex_shader */
uint position_output;
+ uint edgeflag_output;
/** TGSI program interpreter runtime state */
struct tgsi_exec_machine *machine;
struct translate_cache *emit_cache;
} vs;
+ struct {
+ struct draw_geometry_shader *geometry_shader;
+ uint num_gs_outputs; /**< convenience, from geometry_shader */
+ uint position_output;
+
+ /** TGSI program interpreter runtime state */
+ struct tgsi_exec_machine *machine;
+
+ uint num_samplers;
+ struct tgsi_sampler **samplers;
+ } gs;
+
/* Clip derived state:
*/
float plane[12][4];
uint semantic_name;
uint semantic_index;
int slot;
- } extra_vp_outputs;
+ } extra_shader_outputs;
unsigned reduced_prim;
+/*******************************************************************************
+ * Geometry shading code:
+ */
+boolean draw_gs_init( struct draw_context *draw );
+void draw_gs_set_constants( struct draw_context *,
+ const float (*constants)[4],
+ unsigned size );
+
+/*******************************************************************************
+ * Common shading code:
+ */
+int draw_current_shader_outputs(struct draw_context *draw);
+int draw_current_shader_position_output(struct draw_context *draw);
/*******************************************************************************
* Vertex processing (was passthrough) code: