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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
* Copyright 2008 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 TUNGSTEN GRAPHICS 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.
*
**************************************************************************/
/* Author:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "draw/draw_context.h"
#include "draw/draw_vbuf.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_simple_list.h"
#include "lp_clear.h"
#include "lp_context.h"
#include "lp_flush.h"
#include "lp_perf.h"
#include "lp_state.h"
#include "lp_surface.h"
#include "lp_query.h"
#include "lp_setup.h"
DEBUG_GET_ONCE_BOOL_OPTION(lp_no_rast, "LP_NO_RAST", FALSE)
/** shared by all contexts */
unsigned llvmpipe_variant_count;
/**
* This function is called by the gallivm "garbage collector" when
* the LLVM global data structures are freed. We must free all LLVM-related
* data. Specifically, all JIT'd shader variants.
*/
static void
garbage_collect_callback(void *cb_data)
{
struct llvmpipe_context *lp = (struct llvmpipe_context *) cb_data;
struct lp_fs_variant_list_item *li;
/* Free all the context's shader variants */
li = first_elem(&lp->fs_variants_list);
while (!at_end(&lp->fs_variants_list, li)) {
struct lp_fs_variant_list_item *next = next_elem(li);
llvmpipe_remove_shader_variant(lp, li->base);
li = next;
}
/* Free all the context's primitive setup variants */
lp_delete_setup_variants(lp);
/* release references to setup variants, shaders */
lp_setup_set_setup_variant(lp->setup, NULL);
lp_setup_set_fs_variant(lp->setup, NULL);
lp_setup_reset(lp->setup);
/* This type will be recreated upon demand */
lp->jit_context_ptr_type = NULL;
/* mark all state as dirty to ensure new shaders are jit'd, etc. */
lp->dirty = ~0;
}
static void llvmpipe_destroy( struct pipe_context *pipe )
{
struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
uint i, j;
lp_print_counters();
gallivm_remove_garbage_collector_callback(garbage_collect_callback,
llvmpipe);
/* This will also destroy llvmpipe->setup:
*/
if (llvmpipe->draw)
draw_destroy( llvmpipe->draw );
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
}
pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
pipe_sampler_view_reference(&llvmpipe->fragment_sampler_views[i], NULL);
}
for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
pipe_sampler_view_reference(&llvmpipe->vertex_sampler_views[i], NULL);
}
for (i = 0; i < Elements(llvmpipe->constants); i++) {
for (j = 0; j < Elements(llvmpipe->constants[i]); j++) {
pipe_resource_reference(&llvmpipe->constants[i][j], NULL);
}
}
for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
pipe_resource_reference(&llvmpipe->vertex_buffer[i].buffer, NULL);
}
gallivm_destroy(llvmpipe->gallivm);
align_free( llvmpipe );
}
static void
do_flush( struct pipe_context *pipe,
struct pipe_fence_handle **fence)
{
llvmpipe_flush(pipe, fence, __FUNCTION__);
}
struct pipe_context *
llvmpipe_create_context( struct pipe_screen *screen, void *priv )
{
struct llvmpipe_context *llvmpipe;
llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
if (!llvmpipe)
return NULL;
util_init_math();
memset(llvmpipe, 0, sizeof *llvmpipe);
make_empty_list(&llvmpipe->fs_variants_list);
make_empty_list(&llvmpipe->setup_variants_list);
llvmpipe->pipe.winsys = screen->winsys;
llvmpipe->pipe.screen = screen;
llvmpipe->pipe.priv = priv;
/* Init the pipe context methods */
llvmpipe->pipe.destroy = llvmpipe_destroy;
llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
llvmpipe->pipe.clear = llvmpipe_clear;
llvmpipe->pipe.flush = do_flush;
llvmpipe_init_blend_funcs(llvmpipe);
llvmpipe_init_clip_funcs(llvmpipe);
llvmpipe_init_draw_funcs(llvmpipe);
llvmpipe_init_sampler_funcs(llvmpipe);
llvmpipe_init_query_funcs( llvmpipe );
llvmpipe_init_vertex_funcs(llvmpipe);
llvmpipe_init_so_funcs(llvmpipe);
llvmpipe_init_fs_funcs(llvmpipe);
llvmpipe_init_vs_funcs(llvmpipe);
llvmpipe_init_gs_funcs(llvmpipe);
llvmpipe_init_rasterizer_funcs(llvmpipe);
llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
llvmpipe_init_surface_functions(llvmpipe);
llvmpipe->gallivm = gallivm_create();
/*
* Create drawing context and plug our rendering stage into it.
*/
llvmpipe->draw = draw_create_gallivm(&llvmpipe->pipe, llvmpipe->gallivm);
if (!llvmpipe->draw)
goto fail;
/* FIXME: devise alternative to draw_texture_samplers */
if (debug_get_option_lp_no_rast())
llvmpipe->no_rast = TRUE;
llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
llvmpipe->draw );
if (!llvmpipe->setup)
goto fail;
/* plug in AA line/point stages */
draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
/* convert points and lines into triangles:
* (otherwise, draw points and lines natively)
*/
draw_wide_point_sprites(llvmpipe->draw, FALSE);
draw_enable_point_sprites(llvmpipe->draw, FALSE);
draw_wide_point_threshold(llvmpipe->draw, 10000.0);
draw_wide_line_threshold(llvmpipe->draw, 10000.0);
#if USE_DRAW_STAGE_PSTIPPLE
/* Do polygon stipple w/ texture map + frag prog? */
draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
#endif
lp_reset_counters();
gallivm_register_garbage_collector_callback(garbage_collect_callback,
llvmpipe);
return &llvmpipe->pipe;
fail:
llvmpipe_destroy(&llvmpipe->pipe);
return NULL;
}
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