#include "pipe/p_screen.h"
#include "pipe/p_context.h"
#include "pipe/p_shader_tokens.h"
#include "util/u_inlines.h"
#include "cso_cache/cso_context.h"
#include "util/u_math.h"
#include "util/u_memory.h"
#include "util/u_simple_shaders.h"
#include "trace/tr_screen.h"
#include "trace/tr_context.h"
#include "st_device.h"
#include "st_winsys.h"
static void
st_device_really_destroy(struct st_device *st_dev)
{
if(st_dev->screen) {
#if 0
st_dev->screen->destroy(st_dev->screen);
#endif
}
FREE(st_dev);
}
static void
st_device_reference(struct st_device **ptr, struct st_device *st_dev)
{
struct st_device *old_dev = *ptr;
if (pipe_reference(&(*ptr)->reference, &st_dev->reference))
st_device_really_destroy(old_dev);
*ptr = st_dev;
}
void
st_device_destroy(struct st_device *st_dev)
{
st_device_reference(&st_dev, NULL);
}
static struct st_device *
st_device_create_from_st_winsys(const struct st_winsys *st_ws)
{
struct st_device *st_dev;
if(!st_ws->screen_create)
return NULL;
st_dev = CALLOC_STRUCT(st_device);
if(!st_dev)
return NULL;
pipe_reference_init(&st_dev->reference, 1);
st_dev->st_ws = st_ws;
st_dev->real_screen = st_ws->screen_create();
if(!st_dev->real_screen) {
st_device_destroy(st_dev);
return NULL;
}
st_dev->screen = trace_screen_create(st_dev->real_screen);
if(!st_dev->screen) {
st_device_destroy(st_dev);
return NULL;
}
return st_dev;
}
struct st_device *
st_device_create(boolean hardware) {
if(hardware)
return st_device_create_from_st_winsys(&st_hardpipe_winsys);
else
return st_device_create_from_st_winsys(&st_softpipe_winsys);
}
void
st_context_destroy(struct st_context *st_ctx)
{
unsigned i;
if(st_ctx) {
struct st_device *st_dev = st_ctx->st_dev;
if(st_ctx->cso) {
cso_delete_vertex_shader(st_ctx->cso, st_ctx->vs);
cso_delete_fragment_shader(st_ctx->cso, st_ctx->fs);
cso_destroy_context(st_ctx->cso);
}
if(st_ctx->pipe)
st_ctx->pipe->destroy(st_ctx->pipe);
for(i = 0; i < PIPE_MAX_SAMPLERS; ++i)
pipe_texture_reference(&st_ctx->fragment_sampler_textures[i], NULL);
for(i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; ++i)
pipe_texture_reference(&st_ctx->vertex_sampler_textures[i], NULL);
pipe_texture_reference(&st_ctx->default_texture, NULL);
FREE(st_ctx);
st_device_reference(&st_dev, NULL);
}
}
struct st_context *
st_context_create(struct st_device *st_dev)
{
struct st_context *st_ctx;
st_ctx = CALLOC_STRUCT(st_context);
if(!st_ctx)
return NULL;
st_device_reference(&st_ctx->st_dev, st_dev);
st_ctx->pipe = st_dev->screen->context_create(st_dev->screen, NULL);
if(!st_ctx->pipe) {
st_context_destroy(st_ctx);
return NULL;
}
st_ctx->cso = cso_create_context(st_ctx->pipe);
if(!st_ctx->cso) {
st_context_destroy(st_ctx);
return NULL;
}
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.rt[0].colormask = PIPE_MASK_RGBA;
cso_set_blend(st_ctx->cso, &blend);
}
{
struct pipe_depth_stencil_alpha_state depthstencil;
memset(&depthstencil, 0, sizeof(depthstencil));
cso_set_depth_stencil_alpha(st_ctx->cso, &depthstencil);
}
{
struct pipe_rasterizer_state rasterizer;
memset(&rasterizer, 0, sizeof(rasterizer));
rasterizer.front_winding = PIPE_WINDING_CW;
rasterizer.cull_mode = PIPE_WINDING_NONE;
cso_set_rasterizer(st_ctx->cso, &rasterizer);
}
{
struct pipe_clip_state clip;
memset(&clip, 0, sizeof(clip));
st_ctx->pipe->set_clip_state(st_ctx->pipe, &clip);
}
{
struct pipe_viewport_state viewport;
viewport.scale[0] = 1.0;
viewport.scale[1] = 1.0;
viewport.scale[2] = 1.0;
viewport.scale[3] = 1.0;
viewport.translate[0] = 0.0;
viewport.translate[1] = 0.0;
viewport.translate[2] = 0.0;
viewport.translate[3] = 0.0;
cso_set_viewport(st_ctx->cso, &viewport);
}
{
struct pipe_sampler_state sampler;
unsigned i;
memset(&sampler, 0, sizeof(sampler));
sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
sampler.normalized_coords = 1;
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
cso_single_sampler(st_ctx->cso, i, &sampler);
cso_single_sampler_done(st_ctx->cso);
}
{
struct pipe_screen *screen = st_dev->screen;
struct pipe_texture templat;
struct pipe_transfer *transfer;
unsigned i;
memset( &templat, 0, sizeof( templat ) );
templat.target = PIPE_TEXTURE_2D;
templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
templat.width0 = 1;
templat.height0 = 1;
templat.depth0 = 1;
templat.last_level = 0;
st_ctx->default_texture = screen->texture_create( screen, &templat );
if(st_ctx->default_texture) {
transfer = screen->get_tex_transfer(screen,
st_ctx->default_texture,
0, 0, 0,
PIPE_TRANSFER_WRITE,
0, 0,
st_ctx->default_texture->width0,
st_ctx->default_texture->height0);
if (transfer) {
uint32_t *map;
map = (uint32_t *) screen->transfer_map(screen, transfer);
if(map) {
*map = 0x00000000;
screen->transfer_unmap(screen, transfer);
}
screen->tex_transfer_destroy(transfer);
}
}
for (i = 0; i < PIPE_MAX_SAMPLERS; i++)
pipe_texture_reference(&st_ctx->fragment_sampler_textures[i], st_ctx->default_texture);
for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++)
pipe_texture_reference(&st_ctx->vertex_sampler_textures[i], st_ctx->default_texture);
cso_set_sampler_textures(st_ctx->cso, PIPE_MAX_SAMPLERS, st_ctx->fragment_sampler_textures);
cso_set_vertex_sampler_textures(st_ctx->cso, PIPE_MAX_VERTEX_SAMPLERS, st_ctx->vertex_sampler_textures);
}
{
const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
TGSI_SEMANTIC_GENERIC };
const uint semantic_indexes[] = { 0, 0 };
st_ctx->vs = util_make_vertex_passthrough_shader(st_ctx->pipe,
2,
semantic_names,
semantic_indexes);
cso_set_vertex_shader_handle(st_ctx->cso, st_ctx->vs);
}
{
st_ctx->fs = util_make_fragment_passthrough_shader(st_ctx->pipe);
cso_set_fragment_shader_handle(st_ctx->cso, st_ctx->fs);
}
return st_ctx;
}