a56a59ce74
Use _mesa_reference_vert/fragprog() wherever we assign program pointers. Fixes a memory corruption bug found with glean/api2 test. Another memory bug involving shaders yet to be fixed... Picked from gallium-0.1
262 lines
7.3 KiB
C
262 lines
7.3 KiB
C
/**************************************************************************
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*
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* Copyright 2007 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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#include "main/imports.h"
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#include "main/context.h"
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#include "main/extensions.h"
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#include "main/matrix.h"
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#include "main/buffers.h"
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#include "vbo/vbo.h"
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#include "shader/shader_api.h"
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#include "st_public.h"
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#include "st_context.h"
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#include "st_cb_accum.h"
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#include "st_cb_bitmap.h"
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#include "st_cb_blit.h"
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#include "st_cb_bufferobjects.h"
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#include "st_cb_clear.h"
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#include "st_cb_drawpixels.h"
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#include "st_cb_fbo.h"
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#include "st_cb_feedback.h"
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#include "st_cb_program.h"
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#include "st_cb_queryobj.h"
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#include "st_cb_rasterpos.h"
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#include "st_cb_readpixels.h"
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#include "st_cb_texture.h"
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#include "st_cb_flush.h"
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#include "st_cb_strings.h"
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#include "st_atom.h"
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#include "st_draw.h"
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#include "st_extensions.h"
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#include "st_gen_mipmap.h"
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#include "st_program.h"
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#include "pipe/p_context.h"
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#include "pipe/p_inlines.h"
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#include "draw/draw_context.h"
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#include "cso_cache/cso_cache.h"
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#include "cso_cache/cso_context.h"
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/**
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* Called via ctx->Driver.UpdateState()
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*/
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void st_invalidate_state(GLcontext * ctx, GLuint new_state)
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{
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struct st_context *st = st_context(ctx);
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st->dirty.mesa |= new_state;
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st->dirty.st |= ST_NEW_MESA;
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/* This is the only core Mesa module we depend upon.
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* No longer use swrast, swsetup, tnl.
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*/
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_vbo_InvalidateState(ctx, new_state);
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}
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static struct st_context *
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st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
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{
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uint i;
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struct st_context *st = CALLOC_STRUCT( st_context );
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ctx->st = st;
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st->ctx = ctx;
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st->pipe = pipe;
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/* state tracker needs the VBO module */
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_vbo_CreateContext(ctx);
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st->draw = draw_create(); /* for selection/feedback */
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/* Disable draw options that might convert points/lines to tris, etc.
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* as that would foul-up feedback/selection mode.
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*/
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draw_wide_line_threshold(st->draw, 1000.0f);
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draw_wide_point_threshold(st->draw, 1000.0f);
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draw_enable_line_stipple(st->draw, FALSE);
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draw_enable_point_sprites(st->draw, FALSE);
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st->dirty.mesa = ~0;
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st->dirty.st = ~0;
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st->cso_context = cso_create_context(pipe);
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st_init_atoms( st );
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st_init_bitmap(st);
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st_init_clear(st);
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st_init_draw( st );
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st_init_generate_mipmap(st);
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st_init_blit(st);
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for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
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st->state.sampler_list[i] = &st->state.samplers[i];
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/* we want all vertex data to be placed in buffer objects */
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vbo_use_buffer_objects(ctx);
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/* Need these flags:
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*/
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st->ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
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st->ctx->FragmentProgram._UseTexEnvProgram = GL_TRUE;
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st->ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
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st->pixel_xfer.cache = _mesa_new_program_cache();
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/* GL limits and extensions */
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st_init_limits(st);
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st_init_extensions(st);
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return st;
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}
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struct st_context *st_create_context(struct pipe_context *pipe,
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const __GLcontextModes *visual,
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struct st_context *share)
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{
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GLcontext *ctx;
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GLcontext *shareCtx = share ? share->ctx : NULL;
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struct dd_function_table funcs;
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memset(&funcs, 0, sizeof(funcs));
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st_init_driver_functions(&funcs);
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ctx = _mesa_create_context(visual, shareCtx, &funcs, NULL);
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return st_create_context_priv(ctx, pipe);
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}
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static void st_destroy_context_priv( struct st_context *st )
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{
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uint i;
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st_reference_fragprog(st, &st->fp, NULL);
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st_reference_vertprog(st, &st->vp, NULL);
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draw_destroy(st->draw);
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st_destroy_atoms( st );
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st_destroy_draw( st );
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st_destroy_generate_mipmap(st);
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st_destroy_bitmap(st);
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st_destroy_blit(st);
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st_destroy_clear(st);
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_vbo_DestroyContext(st->ctx);
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for (i = 0; i < Elements(st->state.constants); i++) {
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if (st->state.constants[i].buffer) {
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pipe_reference_buffer(st->pipe, &st->state.constants[i].buffer, NULL);
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}
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}
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free( st );
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}
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void st_destroy_context( struct st_context *st )
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{
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struct pipe_context *pipe = st->pipe;
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struct cso_context *cso = st->cso_context;
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GLcontext *ctx = st->ctx;
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/* need to unbind and destroy CSO objects before anything else */
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cso_release_all(st->cso_context);
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_mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
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_mesa_free_context_data(ctx);
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st_destroy_context_priv(st);
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cso_destroy_context(cso);
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pipe->destroy( pipe );
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free(ctx);
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}
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void st_make_current(struct st_context *st,
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struct st_framebuffer *draw,
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struct st_framebuffer *read)
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{
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if (st) {
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GLboolean firstTime = st->ctx->FirstTimeCurrent;
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_mesa_make_current(st->ctx, &draw->Base, &read->Base);
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/* Need to initialize viewport here since draw->Base->Width/Height
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* will still be zero at this point.
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* This could be improved, but would require rather extensive work
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* elsewhere (allocate rb surface storage sooner)
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*/
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if (firstTime) {
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GLuint w = draw->InitWidth, h = draw->InitHeight;
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_mesa_set_viewport(st->ctx, 0, 0, w, h);
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_mesa_set_scissor(st->ctx, 0, 0, w, h);
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}
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}
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else {
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_mesa_make_current(NULL, NULL, NULL);
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}
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}
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void st_copy_context_state(struct st_context *dst,
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struct st_context *src,
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uint mask)
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{
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_mesa_copy_context(dst->ctx, src->ctx, mask);
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}
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void st_init_driver_functions(struct dd_function_table *functions)
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{
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_mesa_init_glsl_driver_functions(functions);
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st_init_accum_functions(functions);
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st_init_bitmap_functions(functions);
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st_init_blit_functions(functions);
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st_init_bufferobject_functions(functions);
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st_init_clear_functions(functions);
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st_init_drawpixels_functions(functions);
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st_init_fbo_functions(functions);
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st_init_feedback_functions(functions);
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st_init_program_functions(functions);
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st_init_query_functions(functions);
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st_init_rasterpos_functions(functions);
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st_init_readpixels_functions(functions);
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st_init_texture_functions(functions);
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st_init_flush_functions(functions);
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st_init_string_functions(functions);
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functions->UpdateState = st_invalidate_state;
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}
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