/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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.
*
**************************************************************************/
/**
* Tiling engine.
*
* Builds per-tile display lists and executes them on calls to
* lp_setup_flush().
*/
#include <limits.h>
#include "pipe/p_defines.h"
#include "util/u_framebuffer.h"
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "util/u_pack_color.h"
#include "draw/draw_pipe.h"
#include "lp_context.h"
#include "lp_memory.h"
#include "lp_scene.h"
#include "lp_texture.h"
#include "lp_debug.h"
#include "lp_fence.h"
#include "lp_query.h"
#include "lp_rast.h"
#include "lp_setup_context.h"
#include "lp_screen.h"
#include "lp_state.h"
#include "state_tracker/sw_winsys.h"
#include "draw/draw_context.h"
#include "draw/draw_vbuf.h"
static boolean set_scene_state( struct lp_setup_context *, enum setup_state,
const char *reason);
static boolean try_update_scene_state( struct lp_setup_context *setup );
static void
lp_setup_get_empty_scene(struct lp_setup_context *setup)
{
assert(setup->scene == NULL);
setup->scene_idx++;
setup->scene_idx %= Elements(setup->scenes);
setup->scene = setup->scenes[setup->scene_idx];
if (setup->scene->fence) {
if (LP_DEBUG & DEBUG_SETUP)
debug_printf("%s: wait for scene %d\n",
__FUNCTION__, setup->scene->fence->id);
lp_fence_wait(setup->scene->fence);
}
lp_scene_begin_binning(setup->scene, &setup->fb);
}
static void
first_triangle( struct lp_setup_context *setup,
const float (*v0)[4],
const float (*v1)[4],
const float (*v2)[4])
{
assert(setup->state == SETUP_ACTIVE);
lp_setup_choose_triangle( setup );
setup->triangle( setup, v0, v1, v2 );
}
static void
first_line( struct lp_setup_context *setup,
const float (*v0)[4],
const float (*v1)[4])
{
assert(setup->state == SETUP_ACTIVE);
lp_setup_choose_line( setup );
setup->line( setup, v0, v1 );
}
static void
first_point( struct lp_setup_context *setup,
const float (*v0)[4])
{
assert(setup->state == SETUP_ACTIVE);
lp_setup_choose_point( setup );
setup->point( setup, v0 );
}
void lp_setup_reset( struct lp_setup_context *setup )
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
/* Reset derived state */
setup->constants.stored_size = 0;
setup->constants.stored_data = NULL;
setup->fs.stored = NULL;
setup->dirty = ~0;
/* no current bin */
setup->scene = NULL;
/* Reset some state:
*/
memset(&setup->clear, 0, sizeof setup->clear);
/* Have an explicit "start-binning" call and get rid of this
* pointer twiddling?
*/
setup->line = first_line;
setup->point = first_point;
setup->triangle = first_triangle;
}
/** Rasterize all scene's bins */
static void
lp_setup_rasterize_scene( struct lp_setup_context *setup )
{
struct lp_scene *scene = setup->scene;
struct llvmpipe_screen *screen = llvmpipe_screen(scene->pipe->screen);
lp_scene_end_binning(scene);
lp_fence_reference(&setup->last_fence, scene->fence);
if (setup->last_fence)
setup->last_fence->issued = TRUE;
pipe_mutex_lock(screen->rast_mutex);
lp_rast_queue_scene(screen->rast, scene);
lp_rast_finish(screen->rast);
pipe_mutex_unlock(screen->rast_mutex);
lp_scene_end_rasterization(setup->scene);
lp_setup_reset( setup );
LP_DBG(DEBUG_SETUP, "%s done \n", __FUNCTION__);
}
static boolean
begin_binning( struct lp_setup_context *setup )
{
struct lp_scene *scene = setup->scene;
boolean need_zsload = FALSE;
boolean ok;
unsigned i, j;
assert(scene);
assert(scene->fence == NULL);
/* Always create a fence:
*/
scene->fence = lp_fence_create(MAX2(1, setup->num_threads));
if (!scene->fence)
return FALSE;
/* Initialize the bin flags and x/y coords:
*/
for (i = 0; i < scene->tiles_x; i++) {
for (j = 0; j < scene->tiles_y; j++) {
scene->tile[i][j].x = i;
scene->tile[i][j].y = j;
}
}
ok = try_update_scene_state(setup);
if (!ok)
return FALSE;
if (setup->fb.zsbuf &&
((setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) &&
util_format_is_depth_and_stencil(setup->fb.zsbuf->format))
need_zsload = TRUE;
LP_DBG(DEBUG_SETUP, "%s color: %s depth: %s\n", __FUNCTION__,
(setup->clear.flags & PIPE_CLEAR_COLOR) ? "clear": "load",
need_zsload ? "clear": "load");
if (setup->fb.nr_cbufs) {
if (setup->clear.flags & PIPE_CLEAR_COLOR) {
ok = lp_scene_bin_everywhere( scene,
LP_RAST_OP_CLEAR_COLOR,
setup->clear.color );
if (!ok)
return FALSE;
}
}
if (setup->fb.zsbuf) {
if (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) {
if (!need_zsload)
scene->has_depthstencil_clear = TRUE;
ok = lp_scene_bin_everywhere( scene,
LP_RAST_OP_CLEAR_ZSTENCIL,
lp_rast_arg_clearzs(
setup->clear.zsvalue,
setup->clear.zsmask));
if (!ok)
return FALSE;
}
}
if (setup->active_query) {
ok = lp_scene_bin_everywhere( scene,
LP_RAST_OP_BEGIN_QUERY,
lp_rast_arg_query(setup->active_query) );
if (!ok)
return FALSE;
}
setup->clear.flags = 0;
setup->clear.zsmask = 0;
setup->clear.zsvalue = 0;
LP_DBG(DEBUG_SETUP, "%s done\n", __FUNCTION__);
return TRUE;
}
/* This basically bins and then flushes any outstanding full-screen
* clears.
*
* TODO: fast path for fullscreen clears and no triangles.
*/
static boolean
execute_clears( struct lp_setup_context *setup )
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
return begin_binning( setup );
}
const char *states[] = {
"FLUSHED",
"CLEARED",
"ACTIVE "
};
static boolean
set_scene_state( struct lp_setup_context *setup,
enum setup_state new_state,
const char *reason)
{
unsigned old_state = setup->state;
if (old_state == new_state)
return TRUE;
if (LP_DEBUG & DEBUG_SCENE) {
debug_printf("%s old %s new %s%s%s\n",
__FUNCTION__,
states[old_state],
states[new_state],
(new_state == SETUP_FLUSHED) ? ": " : "",
(new_state == SETUP_FLUSHED) ? reason : "");
if (new_state == SETUP_FLUSHED && setup->scene)
lp_debug_draw_bins_by_cmd_length(setup->scene);
}
/* wait for a free/empty scene
*/
if (old_state == SETUP_FLUSHED)
lp_setup_get_empty_scene(setup);
switch (new_state) {
case SETUP_CLEARED:
break;
case SETUP_ACTIVE:
if (!begin_binning( setup ))
goto fail;
break;
case SETUP_FLUSHED:
if (old_state == SETUP_CLEARED)
if (!execute_clears( setup ))
goto fail;
lp_setup_rasterize_scene( setup );
assert(setup->scene == NULL);
break;
default:
assert(0 && "invalid setup state mode");
goto fail;
}
setup->state = new_state;
return TRUE;
fail:
if (setup->scene) {
lp_scene_end_rasterization(setup->scene);
setup->scene = NULL;
}
setup->state = SETUP_FLUSHED;
lp_setup_reset( setup );
return FALSE;
}
void
lp_setup_flush( struct lp_setup_context *setup,
struct pipe_fence_handle **fence,
const char *reason)
{
set_scene_state( setup, SETUP_FLUSHED, reason );
if (fence) {
lp_fence_reference((struct lp_fence **)fence, setup->last_fence);
}
}
void
lp_setup_bind_framebuffer( struct lp_setup_context *setup,
const struct pipe_framebuffer_state *fb )
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
/* Flush any old scene.
*/
set_scene_state( setup, SETUP_FLUSHED, __FUNCTION__ );
/*
* Ensure the old scene is not reused.
*/
assert(!setup->scene);
/* Set new state. This will be picked up later when we next need a
* scene.
*/
util_copy_framebuffer_state(&setup->fb, fb);
setup->framebuffer.x0 = 0;
setup->framebuffer.y0 = 0;
setup->framebuffer.x1 = fb->width-1;
setup->framebuffer.y1 = fb->height-1;
setup->dirty |= LP_SETUP_NEW_SCISSOR;
}
static boolean
lp_setup_try_clear( struct lp_setup_context *setup,
const float *color,
double depth,
unsigned stencil,
unsigned flags )
{
uint32_t zsmask = 0;
uint32_t zsvalue = 0;
union lp_rast_cmd_arg color_arg;
unsigned i;
LP_DBG(DEBUG_SETUP, "%s state %d\n", __FUNCTION__, setup->state);
if (flags & PIPE_CLEAR_COLOR) {
for (i = 0; i < 4; i++)
color_arg.clear_color[i] = float_to_ubyte(color[i]);
}
if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
uint32_t zmask = (flags & PIPE_CLEAR_DEPTH) ? ~0 : 0;
uint32_t smask = (flags & PIPE_CLEAR_STENCIL) ? ~0 : 0;
zsvalue = util_pack_z_stencil(setup->fb.zsbuf->format,
depth,
stencil);
zsmask = util_pack_mask_z_stencil(setup->fb.zsbuf->format,
zmask,
smask);
zsvalue &= zsmask;
}
if (setup->state == SETUP_ACTIVE) {
struct lp_scene *scene = setup->scene;
/* Add the clear to existing scene. In the unusual case where
* both color and depth-stencil are being cleared when there's
* already been some rendering, we could discard the currently
* binned scene and start again, but I don't see that as being
* a common usage.
*/
if (flags & PIPE_CLEAR_COLOR) {
if (!lp_scene_bin_everywhere( scene,
LP_RAST_OP_CLEAR_COLOR,
color_arg ))
return FALSE;
}
if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
if (!lp_scene_bin_everywhere( scene,
LP_RAST_OP_CLEAR_ZSTENCIL,
lp_rast_arg_clearzs(zsvalue, zsmask) ))
return FALSE;
}
}
else {
/* Put ourselves into the 'pre-clear' state, specifically to try
* and accumulate multiple clears to color and depth_stencil
* buffers which the app or state-tracker might issue
* separately.
*/
set_scene_state( setup, SETUP_CLEARED, __FUNCTION__ );
setup->clear.flags |= flags;
if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
setup->clear.zsmask |= zsmask;
setup->clear.zsvalue =
(setup->clear.zsvalue & ~zsmask) | (zsvalue & zsmask);
}
if (flags & PIPE_CLEAR_COLOR) {
memcpy(setup->clear.color.clear_color,
&color_arg,
sizeof setup->clear.color.clear_color);
}
}
return TRUE;
}
void
lp_setup_clear( struct lp_setup_context *setup,
const float *color,
double depth,
unsigned stencil,
unsigned flags )
{
if (!lp_setup_try_clear( setup, color, depth, stencil, flags )) {
lp_setup_flush(setup, NULL, __FUNCTION__);
if (!lp_setup_try_clear( setup, color, depth, stencil, flags ))
assert(0);
}
}
void
lp_setup_set_triangle_state( struct lp_setup_context *setup,
unsigned cull_mode,
boolean ccw_is_frontface,
boolean scissor,
boolean gl_rasterization_rules)
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
setup->ccw_is_frontface = ccw_is_frontface;
setup->cullmode = cull_mode;
setup->triangle = first_triangle;
setup->pixel_offset = gl_rasterization_rules ? 0.5f : 0.0f;
if (setup->scissor_test != scissor) {
setup->dirty |= LP_SETUP_NEW_SCISSOR;
setup->scissor_test = scissor;
}
}
void
lp_setup_set_line_state( struct lp_setup_context *setup,
float line_width)
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
setup->line_width = line_width;
}
void
lp_setup_set_point_state( struct lp_setup_context *setup,
float point_size,
boolean point_size_per_vertex,
uint sprite_coord_enable,
uint sprite_coord_origin)
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
setup->point_size = point_size;
setup->sprite_coord_enable = sprite_coord_enable;
setup->sprite_coord_origin = sprite_coord_origin;
setup->point_size_per_vertex = point_size_per_vertex;
}
void
lp_setup_set_setup_variant( struct lp_setup_context *setup,
const struct lp_setup_variant *variant)
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
setup->setup.variant = variant;
}
void
lp_setup_set_fs_variant( struct lp_setup_context *setup,
struct lp_fragment_shader_variant *variant)
{
LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__,
variant);
/* FIXME: reference count */
setup->fs.current.variant = variant;
setup->dirty |= LP_SETUP_NEW_FS;
}
void
lp_setup_set_fs_constants(struct lp_setup_context *setup,
struct pipe_resource *buffer)
{
LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__, (void *) buffer);
pipe_resource_reference(&setup->constants.current, buffer);
setup->dirty |= LP_SETUP_NEW_CONSTANTS;
}
void
lp_setup_set_alpha_ref_value( struct lp_setup_context *setup,
float alpha_ref_value )
{
LP_DBG(DEBUG_SETUP, "%s %f\n", __FUNCTION__, alpha_ref_value);
if(setup->fs.current.jit_context.alpha_ref_value != alpha_ref_value) {
setup->fs.current.jit_context.alpha_ref_value = alpha_ref_value;
setup->dirty |= LP_SETUP_NEW_FS;
}
}
void
lp_setup_set_stencil_ref_values( struct lp_setup_context *setup,
const ubyte refs[2] )
{
LP_DBG(DEBUG_SETUP, "%s %d %d\n", __FUNCTION__, refs[0], refs[1]);
if (setup->fs.current.jit_context.stencil_ref_front != refs[0] ||
setup->fs.current.jit_context.stencil_ref_back != refs[1]) {
setup->fs.current.jit_context.stencil_ref_front = refs[0];
setup->fs.current.jit_context.stencil_ref_back = refs[1];
setup->dirty |= LP_SETUP_NEW_FS;
}
}
void
lp_setup_set_blend_color( struct lp_setup_context *setup,
const struct pipe_blend_color *blend_color )
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
assert(blend_color);
if(memcmp(&setup->blend_color.current, blend_color, sizeof *blend_color) != 0) {
memcpy(&setup->blend_color.current, blend_color, sizeof *blend_color);
setup->dirty |= LP_SETUP_NEW_BLEND_COLOR;
}
}
void
lp_setup_set_scissor( struct lp_setup_context *setup,
const struct pipe_scissor_state *scissor )
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
assert(scissor);
setup->scissor.x0 = scissor->minx;
setup->scissor.x1 = scissor->maxx-1;
setup->scissor.y0 = scissor->miny;
setup->scissor.y1 = scissor->maxy-1;
setup->dirty |= LP_SETUP_NEW_SCISSOR;
}
void
lp_setup_set_flatshade_first( struct lp_setup_context *setup,
boolean flatshade_first )
{
setup->flatshade_first = flatshade_first;
}
void
lp_setup_set_vertex_info( struct lp_setup_context *setup,
struct vertex_info *vertex_info )
{
/* XXX: just silently holding onto the pointer:
*/
setup->vertex_info = vertex_info;
}
/**
* Called during state validation when LP_NEW_SAMPLER_VIEW is set.
*/
void
lp_setup_set_fragment_sampler_views(struct lp_setup_context *setup,
unsigned num,
struct pipe_sampler_view **views)
{
unsigned i;
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
assert(num <= PIPE_MAX_SAMPLERS);
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
struct pipe_sampler_view *view = i < num ? views[i] : NULL;
if (view) {
struct pipe_resource *tex = view->texture;
struct llvmpipe_resource *lp_tex = llvmpipe_resource(tex);
struct lp_jit_texture *jit_tex;
jit_tex = &setup->fs.current.jit_context.textures[i];
jit_tex->width = tex->width0;
jit_tex->height = tex->height0;
jit_tex->depth = tex->depth0;
jit_tex->first_level = view->u.tex.first_level;
jit_tex->last_level = tex->last_level;
/* We're referencing the texture's internal data, so save a
* reference to it.
*/
pipe_resource_reference(&setup->fs.current_tex[i], tex);
if (!lp_tex->dt) {
/* regular texture - setup array of mipmap level pointers */
int j;
for (j = view->u.tex.first_level; j <= tex->last_level; j++) {
jit_tex->data[j] =
llvmpipe_get_texture_image_all(lp_tex, j, LP_TEX_USAGE_READ,
LP_TEX_LAYOUT_LINEAR);
jit_tex->row_stride[j] = lp_tex->row_stride[j];
jit_tex->img_stride[j] = lp_tex->img_stride[j];
if ((LP_PERF & PERF_TEX_MEM) ||
!jit_tex->data[j]) {
/* out of memory - use dummy tile memory */
jit_tex->data[j] = lp_dummy_tile;
jit_tex->width = TILE_SIZE/8;
jit_tex->height = TILE_SIZE/8;
jit_tex->depth = 1;
jit_tex->first_level = 0;
jit_tex->last_level = 0;
jit_tex->row_stride[j] = 0;
jit_tex->img_stride[j] = 0;
}
}
}
else {
/* display target texture/surface */
/*
* XXX: Where should this be unmapped?
*/
struct llvmpipe_screen *screen = llvmpipe_screen(tex->screen);
struct sw_winsys *winsys = screen->winsys;
jit_tex->data[0] = winsys->displaytarget_map(winsys, lp_tex->dt,
PIPE_TRANSFER_READ);
jit_tex->row_stride[0] = lp_tex->row_stride[0];
jit_tex->img_stride[0] = lp_tex->img_stride[0];
assert(jit_tex->data[0]);
}
}
}
setup->dirty |= LP_SETUP_NEW_FS;
}
/**
* Called during state validation when LP_NEW_SAMPLER is set.
*/
void
lp_setup_set_fragment_sampler_state(struct lp_setup_context *setup,
unsigned num,
struct pipe_sampler_state **samplers)
{
unsigned i;
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
assert(num <= PIPE_MAX_SAMPLERS);
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
const struct pipe_sampler_state *sampler = i < num ? samplers[i] : NULL;
if (sampler) {
struct lp_jit_texture *jit_tex;
jit_tex = &setup->fs.current.jit_context.textures[i];
jit_tex->min_lod = sampler->min_lod;
jit_tex->max_lod = sampler->max_lod;
jit_tex->lod_bias = sampler->lod_bias;
COPY_4V(jit_tex->border_color, sampler->border_color.f);
}
}
setup->dirty |= LP_SETUP_NEW_FS;
}
/**
* Is the given texture referenced by any scene?
* Note: we have to check all scenes including any scenes currently
* being rendered and the current scene being built.
*/
unsigned
lp_setup_is_resource_referenced( const struct lp_setup_context *setup,
const struct pipe_resource *texture )
{
unsigned i;
/* check the render targets */
for (i = 0; i < setup->fb.nr_cbufs; i++) {
if (setup->fb.cbufs[i]->texture == texture)
return LP_REFERENCED_FOR_READ | LP_REFERENCED_FOR_WRITE;
}
if (setup->fb.zsbuf && setup->fb.zsbuf->texture == texture) {
return LP_REFERENCED_FOR_READ | LP_REFERENCED_FOR_WRITE;
}
/* check textures referenced by the scene */
for (i = 0; i < Elements(setup->scenes); i++) {
if (lp_scene_is_resource_referenced(setup->scenes[i], texture)) {
return LP_REFERENCED_FOR_READ;
}
}
return LP_UNREFERENCED;
}
/**
* Called by vbuf code when we're about to draw something.
*/
static boolean
try_update_scene_state( struct lp_setup_context *setup )
{
boolean new_scene = (setup->fs.stored == NULL);
struct lp_scene *scene = setup->scene;
assert(scene);
if(setup->dirty & LP_SETUP_NEW_BLEND_COLOR) {
uint8_t *stored;
unsigned i, j;
stored = lp_scene_alloc_aligned(scene, 4 * 16, 16);
if (!stored) {
assert(!new_scene);
return FALSE;
}
/* smear each blend color component across 16 ubyte elements */
for (i = 0; i < 4; ++i) {
uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
for (j = 0; j < 16; ++j)
stored[i*16 + j] = c;
}
setup->blend_color.stored = stored;
setup->fs.current.jit_context.blend_color = setup->blend_color.stored;
setup->dirty |= LP_SETUP_NEW_FS;
}
if(setup->dirty & LP_SETUP_NEW_CONSTANTS) {
struct pipe_resource *buffer = setup->constants.current;
if(buffer) {
unsigned current_size = buffer->width0;
const void *current_data = llvmpipe_resource_data(buffer);
/* TODO: copy only the actually used constants? */
if(setup->constants.stored_size != current_size ||
!setup->constants.stored_data ||
memcmp(setup->constants.stored_data,
current_data,
current_size) != 0) {
void *stored;
stored = lp_scene_alloc(scene, current_size);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
current_data,
current_size);
setup->constants.stored_size = current_size;
setup->constants.stored_data = stored;
}
}
else {
setup->constants.stored_size = 0;
setup->constants.stored_data = NULL;
}
setup->fs.current.jit_context.constants = setup->constants.stored_data;
setup->dirty |= LP_SETUP_NEW_FS;
}
if (setup->dirty & LP_SETUP_NEW_FS) {
if (!setup->fs.stored ||
memcmp(setup->fs.stored,
&setup->fs.current,
sizeof setup->fs.current) != 0)
{
struct lp_rast_state *stored;
uint i;
/* The fs state that's been stored in the scene is different from
* the new, current state. So allocate a new lp_rast_state object
* and append it to the bin's setup data buffer.
*/
stored = (struct lp_rast_state *) lp_scene_alloc(scene, sizeof *stored);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
&setup->fs.current,
sizeof setup->fs.current);
setup->fs.stored = stored;
/* The scene now references the textures in the rasterization
* state record. Note that now.
*/
for (i = 0; i < Elements(setup->fs.current_tex); i++) {
if (setup->fs.current_tex[i]) {
if (!lp_scene_add_resource_reference(scene,
setup->fs.current_tex[i],
new_scene)) {
assert(!new_scene);
return FALSE;
}
}
}
}
}
if (setup->dirty & LP_SETUP_NEW_SCISSOR) {
setup->draw_region = setup->framebuffer;
if (setup->scissor_test) {
u_rect_possible_intersection(&setup->scissor,
&setup->draw_region);
}
}
setup->dirty = 0;
assert(setup->fs.stored);
return TRUE;
}
boolean
lp_setup_update_state( struct lp_setup_context *setup,
boolean update_scene )
{
/* Some of the 'draw' pipeline stages may have changed some driver state.
* Make sure we've processed those state changes before anything else.
*
* XXX this is the only place where llvmpipe_context is used in the
* setup code. This may get refactored/changed...
*/
{
struct llvmpipe_context *lp = llvmpipe_context(setup->pipe);
if (lp->dirty) {
llvmpipe_update_derived(lp);
}
if (lp->setup->dirty) {
llvmpipe_update_setup(lp);
}
assert(setup->setup.variant);
/* Will probably need to move this somewhere else, just need
* to know about vertex shader point size attribute.
*/
setup->psize = lp->psize_slot;
assert(lp->dirty == 0);
assert(lp->setup_variant.key.size ==
setup->setup.variant->key.size);
assert(memcmp(&lp->setup_variant.key,
&setup->setup.variant->key,
setup->setup.variant->key.size) == 0);
}
if (update_scene && setup->state != SETUP_ACTIVE) {
if (!set_scene_state( setup, SETUP_ACTIVE, __FUNCTION__ ))
return FALSE;
}
/* Only call into update_scene_state() if we already have a
* scene:
*/
if (update_scene && setup->scene) {
assert(setup->state == SETUP_ACTIVE);
if (try_update_scene_state(setup))
return TRUE;
/* Update failed, try to restart the scene.
*
* Cannot call lp_setup_flush_and_restart() directly here
* because of potential recursion.
*/
if (!set_scene_state(setup, SETUP_FLUSHED, __FUNCTION__))
return FALSE;
if (!set_scene_state(setup, SETUP_ACTIVE, __FUNCTION__))
return FALSE;
if (!setup->scene)
return FALSE;
return try_update_scene_state(setup);
}
return TRUE;
}
/* Only caller is lp_setup_vbuf_destroy()
*/
void
lp_setup_destroy( struct lp_setup_context *setup )
{
uint i;
lp_setup_reset( setup );
util_unreference_framebuffer_state(&setup->fb);
for (i = 0; i < Elements(setup->fs.current_tex); i++) {
pipe_resource_reference(&setup->fs.current_tex[i], NULL);
}
pipe_resource_reference(&setup->constants.current, NULL);
/* free the scenes in the 'empty' queue */
for (i = 0; i < Elements(setup->scenes); i++) {
struct lp_scene *scene = setup->scenes[i];
if (scene->fence)
lp_fence_wait(scene->fence);
lp_scene_destroy(scene);
}
lp_fence_reference(&setup->last_fence, NULL);
FREE( setup );
}
/**
* Create a new primitive tiling engine. Plug it into the backend of
* the draw module. Currently also creates a rasterizer to use with
* it.
*/
struct lp_setup_context *
lp_setup_create( struct pipe_context *pipe,
struct draw_context *draw )
{
struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen);
struct lp_setup_context *setup;
unsigned i;
setup = CALLOC_STRUCT(lp_setup_context);
if (!setup) {
goto no_setup;
}
lp_setup_init_vbuf(setup);
/* Used only in update_state():
*/
setup->pipe = pipe;
setup->num_threads = screen->num_threads;
setup->vbuf = draw_vbuf_stage(draw, &setup->base);
if (!setup->vbuf) {
goto no_vbuf;
}
draw_set_rasterize_stage(draw, setup->vbuf);
draw_set_render(draw, &setup->base);
/* create some empty scenes */
for (i = 0; i < MAX_SCENES; i++) {
setup->scenes[i] = lp_scene_create( pipe );
if (!setup->scenes[i]) {
goto no_scenes;
}
}
setup->triangle = first_triangle;
setup->line = first_line;
setup->point = first_point;
setup->dirty = ~0;
return setup;
no_scenes:
for (i = 0; i < MAX_SCENES; i++) {
if (setup->scenes[i]) {
lp_scene_destroy(setup->scenes[i]);
}
}
setup->vbuf->destroy(setup->vbuf);
no_vbuf:
FREE(setup);
no_setup:
return NULL;
}
/**
* Put a BeginQuery command into all bins.
*/
void
lp_setup_begin_query(struct lp_setup_context *setup,
struct llvmpipe_query *pq)
{
/* init the query to its beginning state */
assert(setup->active_query == NULL);
set_scene_state(setup, SETUP_ACTIVE, "begin_query");
setup->active_query = pq;
if (setup->scene) {
if (!lp_scene_bin_everywhere(setup->scene,
LP_RAST_OP_BEGIN_QUERY,
lp_rast_arg_query(pq))) {
if (!lp_setup_flush_and_restart(setup))
return;
if (!lp_scene_bin_everywhere(setup->scene,
LP_RAST_OP_BEGIN_QUERY,
lp_rast_arg_query(pq))) {
return;
}
}
}
}
/**
* Put an EndQuery command into all bins.
*/
void
lp_setup_end_query(struct lp_setup_context *setup, struct llvmpipe_query *pq)
{
union lp_rast_cmd_arg dummy = { 0 };
set_scene_state(setup, SETUP_ACTIVE, "end_query");
assert(setup->active_query == pq);
setup->active_query = NULL;
/* Setup will automatically re-issue any query which carried over a
* scene boundary, and the rasterizer automatically "ends" queries
* which are active at the end of a scene, so there is no need to
* retry this commands on failure.
*/
if (setup->scene) {
/* pq->fence should be the fence of the *last* scene which
* contributed to the query result.
*/
lp_fence_reference(&pq->fence, setup->scene->fence);
if (!lp_scene_bin_everywhere(setup->scene,
LP_RAST_OP_END_QUERY,
dummy)) {
lp_setup_flush(setup, NULL, __FUNCTION__);
}
}
else {
lp_fence_reference(&pq->fence, setup->last_fence);
}
}
boolean
lp_setup_flush_and_restart(struct lp_setup_context *setup)
{
if (0) debug_printf("%s\n", __FUNCTION__);
assert(setup->state == SETUP_ACTIVE);
if (!set_scene_state(setup, SETUP_FLUSHED, __FUNCTION__))
return FALSE;
if (!lp_setup_update_state(setup, TRUE))
return FALSE;
return TRUE;
}