/**************************************************************************
*
- * Copyright 2009 VMWare Inc.
+ * Copyright 2009 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define DRAW_GS_H
#include "draw_context.h"
+#include "tgsi/tgsi_exec.h"
#include "draw_private.h"
-
#define MAX_TGSI_PRIMITIVES 4
struct draw_context;
+#ifdef HAVE_LLVM
+struct draw_gs_jit_context;
+struct draw_gs_llvm_variant;
+
+/**
+ * Structure holding the inputs to the geometry shader. It uses SOA layout.
+ * The dimensions are as follows:
+ * - maximum number of vertices for a geometry shader input primitive
+ * (6 for triangle_adjacency)
+ * - maximum number of attributes for each vertex
+ * - four channels per each attribute (x,y,z,w)
+ * - number of input primitives equal to the SOA vector length
+ */
+struct draw_gs_inputs {
+ float data[6][PIPE_MAX_SHADER_INPUTS][TGSI_NUM_CHANNELS][TGSI_NUM_CHANNELS];
+};
+#endif
+
/**
* Private version of the compiled geometry shader
*/
struct tgsi_shader_info info;
unsigned position_output;
+ unsigned viewport_index_output;
+ unsigned ccdistance_output[PIPE_MAX_CLIP_OR_CULL_DISTANCE_ELEMENT_COUNT];
unsigned max_output_vertices;
+ unsigned primitive_boundary;
unsigned input_primitive;
unsigned output_primitive;
- /* Extracted from shader:
- */
- const float (*immediates)[4];
+ unsigned *primitive_lengths;
+ unsigned emitted_vertices;
+ unsigned emitted_primitives;
+
+ float (*tmp_output)[4];
+ unsigned vertex_size;
+
+ unsigned in_prim_idx;
+ unsigned input_vertex_stride;
+ unsigned fetched_prim_count;
+ const float (*input)[4];
+ const struct tgsi_shader_info *input_info;
+ unsigned vector_length;
+ unsigned max_out_prims;
+
+ unsigned num_invocations;
+ unsigned invocation_id;
+#ifdef HAVE_LLVM
+ struct draw_gs_inputs *gs_input;
+ struct draw_gs_jit_context *jit_context;
+ struct draw_gs_llvm_variant *current_variant;
+ struct vertex_header *gs_output;
+
+ int **llvm_prim_lengths;
+ int *llvm_emitted_primitives;
+ int *llvm_emitted_vertices;
+ int *llvm_prim_ids;
+#endif
+
+ void (*fetch_inputs)(struct draw_geometry_shader *shader,
+ unsigned *indices,
+ unsigned num_vertices,
+ unsigned prim_idx);
+ void (*fetch_outputs)(struct draw_geometry_shader *shader,
+ unsigned num_primitives,
+ float (**p_output)[4]);
+
+ void (*prepare)(struct draw_geometry_shader *shader,
+ const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
+ const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS]);
+ unsigned (*run)(struct draw_geometry_shader *shader,
+ unsigned input_primitives);
};
-void draw_geometry_shader_run(struct draw_geometry_shader *shader,
- const float (*input)[4],
- float (*output)[4],
- const float (*constants)[4],
- unsigned count,
- unsigned input_stride,
- unsigned output_stride);
+void draw_geometry_shader_new_instance(struct draw_geometry_shader *gs);
+
+/*
+ * Returns the number of vertices emitted.
+ * The vertex shader can emit any number of vertices as long as it's
+ * smaller than the GS_MAX_OUTPUT_VERTICES shader property.
+ */
+int draw_geometry_shader_run(struct draw_geometry_shader *shader,
+ const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
+ const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS],
+ const struct draw_vertex_info *input_verts,
+ const struct draw_prim_info *input_prim,
+ const struct tgsi_shader_info *input_info,
+ struct draw_vertex_info *output_verts,
+ struct draw_prim_info *output_prims );
void draw_geometry_shader_prepare(struct draw_geometry_shader *shader,
struct draw_context *draw);
-void draw_geometry_shader_delete(struct draw_geometry_shader *shader);
+int draw_gs_max_output_vertices(struct draw_geometry_shader *shader,
+ unsigned pipe_prim);
+#ifdef HAVE_LLVM
+void draw_gs_set_current_variant(struct draw_geometry_shader *shader,
+ struct draw_gs_llvm_variant *variant);
+#endif
#endif