246 lines
6.7 KiB
C
246 lines
6.7 KiB
C
/**************************************************************************
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*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Authors:
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* Keith Whitwell <keith@tungstengraphics.com>
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*/
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#include "main/glheader.h"
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#include "main/macros.h"
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#include "main/enums.h"
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#include "main/shaderapi.h"
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#include "program/prog_instruction.h"
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#include "program/program.h"
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#include "cso_cache/cso_context.h"
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#include "draw/draw_context.h"
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#include "st_context.h"
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#include "st_program.h"
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#include "st_mesa_to_tgsi.h"
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#include "st_cb_program.h"
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/**
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* Called via ctx->Driver.BindProgram() to bind an ARB vertex or
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* fragment program.
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*/
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static void
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st_bind_program(struct gl_context *ctx, GLenum target, struct gl_program *prog)
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{
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struct st_context *st = st_context(ctx);
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switch (target) {
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case GL_VERTEX_PROGRAM_ARB:
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st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
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break;
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case GL_FRAGMENT_PROGRAM_ARB:
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st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
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break;
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case MESA_GEOMETRY_PROGRAM:
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st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
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break;
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}
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}
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/**
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* Called via ctx->Driver.UseProgram() to bind a linked GLSL program
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* (vertex shader + fragment shader).
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*/
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static void
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st_use_program(struct gl_context *ctx, struct gl_shader_program *shProg)
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{
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struct st_context *st = st_context(ctx);
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st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
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st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
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st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
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}
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/**
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* Called via ctx->Driver.NewProgram() to allocate a new vertex or
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* fragment program.
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*/
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static struct gl_program *
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st_new_program(struct gl_context *ctx, GLenum target, GLuint id)
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{
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switch (target) {
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case GL_VERTEX_PROGRAM_ARB: {
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struct st_vertex_program *prog = ST_CALLOC_STRUCT(st_vertex_program);
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return _mesa_init_vertex_program(ctx, &prog->Base, target, id);
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}
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case GL_FRAGMENT_PROGRAM_ARB:
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case GL_FRAGMENT_PROGRAM_NV: {
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struct st_fragment_program *prog = ST_CALLOC_STRUCT(st_fragment_program);
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return _mesa_init_fragment_program(ctx, &prog->Base, target, id);
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}
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case MESA_GEOMETRY_PROGRAM: {
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struct st_geometry_program *prog = ST_CALLOC_STRUCT(st_geometry_program);
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return _mesa_init_geometry_program(ctx, &prog->Base, target, id);
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}
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default:
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assert(0);
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return NULL;
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}
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}
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/**
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* Called via ctx->Driver.DeleteProgram()
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*/
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static void
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st_delete_program(struct gl_context *ctx, struct gl_program *prog)
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{
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struct st_context *st = st_context(ctx);
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switch( prog->Target ) {
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case GL_VERTEX_PROGRAM_ARB:
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{
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struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
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st_release_vp_varients( st, stvp );
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}
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break;
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case MESA_GEOMETRY_PROGRAM:
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{
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struct st_geometry_program *stgp =
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(struct st_geometry_program *) prog;
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st_release_gp_varients(st, stgp);
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if (stgp->tgsi.tokens) {
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st_free_tokens((void *) stgp->tgsi.tokens);
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stgp->tgsi.tokens = NULL;
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}
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}
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break;
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case GL_FRAGMENT_PROGRAM_ARB:
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{
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struct st_fragment_program *stfp =
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(struct st_fragment_program *) prog;
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st_release_fp_varients(st, stfp);
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if (stfp->tgsi.tokens) {
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st_free_tokens(stfp->tgsi.tokens);
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stfp->tgsi.tokens = NULL;
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}
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}
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break;
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default:
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assert(0); /* problem */
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}
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/* delete base class */
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_mesa_delete_program( ctx, prog );
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}
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/**
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* Called via ctx->Driver.IsProgramNative()
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*/
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static GLboolean
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st_is_program_native(struct gl_context *ctx,
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GLenum target,
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struct gl_program *prog)
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{
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return GL_TRUE;
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}
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/**
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* Called via ctx->Driver.ProgramStringNotify()
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* Called when the program's text/code is changed. We have to free
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* all shader varients and corresponding gallium shaders when this happens.
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*/
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static GLboolean
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st_program_string_notify( struct gl_context *ctx,
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GLenum target,
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struct gl_program *prog )
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{
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struct st_context *st = st_context(ctx);
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if (target == GL_FRAGMENT_PROGRAM_ARB) {
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struct st_fragment_program *stfp = (struct st_fragment_program *) prog;
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st_release_fp_varients(st, stfp);
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if (stfp->tgsi.tokens) {
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st_free_tokens(stfp->tgsi.tokens);
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stfp->tgsi.tokens = NULL;
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}
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if (st->fp == stfp)
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st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM;
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}
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else if (target == MESA_GEOMETRY_PROGRAM) {
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struct st_geometry_program *stgp = (struct st_geometry_program *) prog;
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st_release_gp_varients(st, stgp);
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if (stgp->tgsi.tokens) {
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st_free_tokens((void *) stgp->tgsi.tokens);
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stgp->tgsi.tokens = NULL;
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}
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if (st->gp == stgp)
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st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM;
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}
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else if (target == GL_VERTEX_PROGRAM_ARB) {
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struct st_vertex_program *stvp = (struct st_vertex_program *) prog;
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st_release_vp_varients( st, stvp );
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if (st->vp == stvp)
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st->dirty.st |= ST_NEW_VERTEX_PROGRAM;
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}
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/* XXX check if program is legal, within limits */
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return GL_TRUE;
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}
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/**
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* Plug in the program and shader-related device driver functions.
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*/
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void
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st_init_program_functions(struct dd_function_table *functions)
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{
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functions->BindProgram = st_bind_program;
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functions->UseProgram = st_use_program;
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functions->NewProgram = st_new_program;
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functions->DeleteProgram = st_delete_program;
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functions->IsProgramNative = st_is_program_native;
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functions->ProgramStringNotify = st_program_string_notify;
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}
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