/************************************************************************** * * Copyright 2003 VMware, Inc. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * 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 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. * **************************************************************************/ /* * Authors: * Keith Whitwell */ #ifndef ST_PROGRAM_H #define ST_PROGRAM_H #include "main/mtypes.h" #include "program/program.h" #include "pipe/p_state.h" #include "st_context.h" #include "st_glsl_to_tgsi.h" #ifdef __cplusplus extern "C" { #endif /** Fragment program variant key */ struct st_fp_variant_key { struct st_context *st; /**< variants are per-context */ /** for glBitmap */ GLuint bitmap:1; /**< glBitmap variant? */ /** for glDrawPixels */ GLuint drawpixels:1; /**< glDrawPixels variant */ GLuint scaleAndBias:1; /**< glDrawPixels w/ scale and/or bias? */ GLuint pixelMaps:1; /**< glDrawPixels w/ pixel lookup map? */ GLuint drawpixels_z:1; /**< glDrawPixels(GL_DEPTH) */ GLuint drawpixels_stencil:1; /**< glDrawPixels(GL_STENCIL) */ /** for ARB_color_buffer_float */ GLuint clamp_color:1; /** for ARB_sample_shading */ GLuint persample_shading:1; }; /** * Variant of a fragment program. */ struct st_fp_variant { /** Parameters which generated this version of fragment program */ struct st_fp_variant_key key; struct pipe_shader_state tgsi; /** Driver's compiled shader */ void *driver_shader; /** For glBitmap variants */ struct gl_program_parameter_list *parameters; uint bitmap_sampler; /** next in linked list */ struct st_fp_variant *next; }; /** * Derived from Mesa gl_fragment_program: */ struct st_fragment_program { struct gl_fragment_program Base; struct glsl_to_tgsi_visitor* glsl_to_tgsi; struct st_fp_variant *variants; }; /** Vertex program variant key */ struct st_vp_variant_key { struct st_context *st; /**< variants are per-context */ boolean passthrough_edgeflags; /** for ARB_color_buffer_float */ boolean clamp_color; }; /** * This represents a vertex program, especially translated to match * the inputs of a particular fragment shader. */ struct st_vp_variant { /* Parameters which generated this translated version of a vertex * shader: */ struct st_vp_variant_key key; /** * TGSI tokens (to later generate a 'draw' module shader for * selection/feedback/rasterpos) */ struct pipe_shader_state tgsi; /** Driver's compiled shader */ void *driver_shader; /** For using our private draw module (glRasterPos) */ struct draw_vertex_shader *draw_shader; /** Next in linked list */ struct st_vp_variant *next; /** similar to that in st_vertex_program, but with edgeflags info too */ GLuint num_inputs; }; /** * Derived from Mesa gl_fragment_program: */ struct st_vertex_program { struct gl_vertex_program Base; /**< The Mesa vertex program */ struct glsl_to_tgsi_visitor* glsl_to_tgsi; /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */ GLuint input_to_index[VERT_ATTRIB_MAX]; /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */ GLuint index_to_input[PIPE_MAX_SHADER_INPUTS]; GLuint num_inputs; /** Maps VARYING_SLOT_x to slot */ GLuint result_to_output[VARYING_SLOT_MAX]; ubyte output_semantic_name[VARYING_SLOT_MAX]; ubyte output_semantic_index[VARYING_SLOT_MAX]; GLuint num_outputs; /** List of translated variants of this vertex program. */ struct st_vp_variant *variants; }; /** Geometry program variant key */ struct st_gp_variant_key { struct st_context *st; /**< variants are per-context */ /* no other fields yet */ }; /** * Geometry program variant. */ struct st_gp_variant { /* Parameters which generated this translated version of a vertex */ struct st_gp_variant_key key; void *driver_shader; struct st_gp_variant *next; }; /** * Derived from Mesa gl_geometry_program: */ struct st_geometry_program { struct gl_geometry_program Base; /**< The Mesa geometry program */ struct glsl_to_tgsi_visitor* glsl_to_tgsi; struct st_gp_variant *variants; }; static INLINE struct st_fragment_program * st_fragment_program( struct gl_fragment_program *fp ) { return (struct st_fragment_program *)fp; } static INLINE struct st_vertex_program * st_vertex_program( struct gl_vertex_program *vp ) { return (struct st_vertex_program *)vp; } static INLINE struct st_geometry_program * st_geometry_program( struct gl_geometry_program *gp ) { return (struct st_geometry_program *)gp; } static INLINE void st_reference_vertprog(struct st_context *st, struct st_vertex_program **ptr, struct st_vertex_program *prog) { _mesa_reference_program(st->ctx, (struct gl_program **) ptr, (struct gl_program *) prog); } static INLINE void st_reference_geomprog(struct st_context *st, struct st_geometry_program **ptr, struct st_geometry_program *prog) { _mesa_reference_program(st->ctx, (struct gl_program **) ptr, (struct gl_program *) prog); } static INLINE void st_reference_fragprog(struct st_context *st, struct st_fragment_program **ptr, struct st_fragment_program *prog) { _mesa_reference_program(st->ctx, (struct gl_program **) ptr, (struct gl_program *) prog); } /** * This defines mapping from Mesa VARYING_SLOTs to TGSI GENERIC slots. */ static INLINE unsigned st_get_generic_varying_index(struct st_context *st, GLuint attr) { if (attr >= VARYING_SLOT_VAR0) { if (st->needs_texcoord_semantic) return attr - VARYING_SLOT_VAR0; else return 9 + (attr - VARYING_SLOT_VAR0); } if (attr == VARYING_SLOT_PNTC) { assert(!st->needs_texcoord_semantic); return 8; } if (attr >= VARYING_SLOT_TEX0 && attr <= VARYING_SLOT_TEX7) { assert(!st->needs_texcoord_semantic); return attr - VARYING_SLOT_TEX0; } assert(0); return 0; } extern struct st_vp_variant * st_get_vp_variant(struct st_context *st, struct st_vertex_program *stvp, const struct st_vp_variant_key *key); extern struct st_fp_variant * st_get_fp_variant(struct st_context *st, struct st_fragment_program *stfp, const struct st_fp_variant_key *key); extern struct st_gp_variant * st_get_gp_variant(struct st_context *st, struct st_geometry_program *stgp, const struct st_gp_variant_key *key); extern void st_prepare_vertex_program(struct gl_context *ctx, struct st_vertex_program *stvp); extern GLboolean st_prepare_fragment_program(struct gl_context *ctx, struct st_fragment_program *stfp); extern void st_release_vp_variants( struct st_context *st, struct st_vertex_program *stvp ); extern void st_release_fp_variants( struct st_context *st, struct st_fragment_program *stfp ); extern void st_release_gp_variants(struct st_context *st, struct st_geometry_program *stgp); extern void st_print_shaders(struct gl_context *ctx); extern void st_destroy_program_variants(struct st_context *st); extern void st_print_current_vertex_program(void); #ifdef __cplusplus } #endif #endif