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mesa/src/gallium/drivers/llvmpipe/lp_setup.c

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/**************************************************************************
*
* Copyright 2007 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 VMWARE 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 "util/u_cpu_detect.h"
#include "util/u_viewport.h"
#include "draw/draw_pipe.h"
#include "util/os_time.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 "lp_jit.h"
#include "frontend/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 unsigned
lp_setup_wait_empty_scene(struct lp_setup_context *setup)
{
/* just use the first scene if we run out */
if (setup->scenes[0]->fence) {
debug_printf("%s: wait for scene %d\n",
__FUNCTION__, setup->scenes[0]->fence->id);
lp_fence_wait(setup->scenes[0]->fence);
lp_scene_end_rasterization(setup->scenes[0]);
}
return 0;
}
static void
lp_setup_get_empty_scene(struct lp_setup_context *setup)
{
assert(setup->scene == NULL);
unsigned i;
/* try and find a scene that isn't being used */
for (i = 0; i < setup->num_active_scenes; i++) {
if (setup->scenes[i]->fence) {
if (lp_fence_signalled(setup->scenes[i]->fence)) {
lp_scene_end_rasterization(setup->scenes[i]);
break;
}
} else {
break;
}
}
if (setup->num_active_scenes + 1 > MAX_SCENES) {
i = lp_setup_wait_empty_scene(setup);
} else if (i == setup->num_active_scenes) {
/* allocate a new scene */
struct lp_scene *scene = lp_scene_create(setup);
if (!scene) {
/* block and reuse scenes */
i = lp_setup_wait_empty_scene(setup);
} else {
LP_DBG(DEBUG_SETUP, "allocated scene: %d\n", setup->num_active_scenes);
setup->scenes[setup->num_active_scenes] = scene;
i = setup->num_active_scenes;
setup->num_active_scenes++;
}
}
setup->scene = setup->scenes[i];
setup->scene->permit_linear_rasterizer = setup->permit_linear_rasterizer;
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 boolean
first_rectangle(struct lp_setup_context *setup,
const float (*v0)[4],
const float (*v1)[4],
const float (*v2)[4],
const float (*v3)[4],
const float (*v4)[4],
const float (*v5)[4])
{
assert(setup->state == SETUP_ACTIVE);
lp_setup_choose_rect(setup);
return setup->rect(setup, v0, v1, v2, v3, v4, v5);
}
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 */
for (unsigned i = 0; i < ARRAY_SIZE(setup->constants); ++i) {
setup->constants[i].stored_size = 0;
setup->constants[i].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;
setup->rect = first_rectangle;
}
/** 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);
scene->num_active_queries = setup->active_binned_queries;
memcpy(scene->active_queries, setup->active_queries,
scene->num_active_queries * sizeof(scene->active_queries[0]));
lp_scene_end_binning(scene);
lp_fence_reference(&setup->last_fence, scene->fence);
if (setup->last_fence)
setup->last_fence->issued = TRUE;
mtx_lock(&screen->rast_mutex);
lp_rast_queue_scene(screen->rast, scene);
mtx_unlock(&screen->rast_mutex);
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;
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;
if (!try_update_scene_state(setup)) {
return FALSE;
}
boolean need_zsload = 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 clear bufs: %x depth: %s\n", __FUNCTION__,
setup->clear.flags >> 2,
need_zsload ? "clear": "load");
if (setup->clear.flags & PIPE_CLEAR_COLOR) {
for (unsigned cbuf = 0; cbuf < setup->fb.nr_cbufs; cbuf++) {
assert(PIPE_CLEAR_COLOR0 == 1 << 2);
if (setup->clear.flags & (1 << (2 + cbuf))) {
union lp_rast_cmd_arg clearrb_arg;
struct lp_rast_clear_rb *cc_scene =
(struct lp_rast_clear_rb *)
lp_scene_alloc(scene, sizeof(struct lp_rast_clear_rb));
if (!cc_scene) {
return FALSE;
}
cc_scene->cbuf = cbuf;
cc_scene->color_val = setup->clear.color_val[cbuf];
clearrb_arg.clear_rb = cc_scene;
if (!lp_scene_bin_everywhere(scene,
LP_RAST_OP_CLEAR_COLOR,
clearrb_arg)) {
return FALSE;
}
}
}
}
if (setup->fb.zsbuf) {
if (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) {
if (!lp_scene_bin_everywhere(scene,
LP_RAST_OP_CLEAR_ZSTENCIL,
lp_rast_arg_clearzs(
setup->clear.zsvalue,
setup->clear.zsmask))) {
return FALSE;
}
}
}
setup->clear.flags = 0;
setup->clear.zsmask = 0;
setup->clear.zsvalue = 0;
scene->had_queries = !!setup->active_binned_queries;
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);
}
static const char *states[] = {
"FLUSHED",
"CLEARED",
"ACTIVE "
};
static boolean
set_scene_state(struct lp_setup_context *setup,
enum setup_state new_state,
const char *reason)
{
const 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);
if (!*fence)
*fence = (struct pipe_fence_handle *)lp_fence_create(0);
}
}
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;
}
/*
* Try to clear one color buffer of the attached fb, either by binning a clear
* command or queuing up the clear for later (when binning is started).
*/
static boolean
lp_setup_try_clear_color_buffer(struct lp_setup_context *setup,
const union pipe_color_union *color,
unsigned cbuf)
{
union lp_rast_cmd_arg clearrb_arg;
union util_color uc;
const enum pipe_format format = setup->fb.cbufs[cbuf]->format;
LP_DBG(DEBUG_SETUP, "%s state %d\n", __FUNCTION__, setup->state);
util_pack_color_union(format, &uc, color);
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.
*/
struct lp_rast_clear_rb *cc_scene =
(struct lp_rast_clear_rb *)
lp_scene_alloc_aligned(scene, sizeof(struct lp_rast_clear_rb), 8);
if (!cc_scene) {
return FALSE;
}
cc_scene->cbuf = cbuf;
cc_scene->color_val = uc;
clearrb_arg.clear_rb = cc_scene;
if (!lp_scene_bin_everywhere(scene,
LP_RAST_OP_CLEAR_COLOR,
clearrb_arg)) {
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 gallium frontend might issue
* separately.
*/
set_scene_state(setup, SETUP_CLEARED, __FUNCTION__);
assert(PIPE_CLEAR_COLOR0 == (1 << 2));
setup->clear.flags |= 1 << (cbuf + 2);
setup->clear.color_val[cbuf] = uc;
}
return TRUE;
}
static boolean
lp_setup_try_clear_zs(struct lp_setup_context *setup,
double depth,
unsigned stencil,
unsigned flags)
{
LP_DBG(DEBUG_SETUP, "%s state %d\n", __FUNCTION__, setup->state);
enum pipe_format format = setup->fb.zsbuf->format;
const uint32_t zmask32 = (flags & PIPE_CLEAR_DEPTH) ? ~0 : 0;
const uint8_t smask8 = (flags & PIPE_CLEAR_STENCIL) ? ~0 : 0;
uint64_t zsvalue = util_pack64_z_stencil(format, depth, stencil);
uint64_t zsmask = util_pack64_mask_z_stencil(format, zmask32, smask8);
zsvalue &= zsmask;
if (format == PIPE_FORMAT_Z24X8_UNORM ||
format == PIPE_FORMAT_X8Z24_UNORM) {
/*
* Make full mask if there's "X" bits so we can do full
* clear (without rmw).
*/
uint32_t zsmask_full = util_pack_mask_z_stencil(format, ~0, ~0);
zsmask |= ~zsmask_full;
}
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 (!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 gallium frontend might issue
* separately.
*/
set_scene_state(setup, SETUP_CLEARED, __FUNCTION__);
setup->clear.flags |= flags;
setup->clear.zsmask |= zsmask;
setup->clear.zsvalue =
(setup->clear.zsvalue & ~zsmask) | (zsvalue & zsmask);
}
return TRUE;
}
void
lp_setup_clear(struct lp_setup_context *setup,
const union pipe_color_union *color,
double depth,
unsigned stencil,
unsigned flags)
{
/*
* Note any of these (max 9) clears could fail (but at most there should
* be just one failure!). This avoids doing the previous succeeded
* clears again (we still clear tiles twice if a clear command succeeded
* partially for one buffer).
*/
if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
unsigned flagszs = flags & PIPE_CLEAR_DEPTHSTENCIL;
if (!lp_setup_try_clear_zs(setup, depth, stencil, flagszs)) {
lp_setup_flush(setup, NULL, __FUNCTION__);
if (!lp_setup_try_clear_zs(setup, depth, stencil, flagszs))
assert(0);
}
}
if (flags & PIPE_CLEAR_COLOR) {
assert(PIPE_CLEAR_COLOR0 == (1 << 2));
for (unsigned i = 0; i < setup->fb.nr_cbufs; i++) {
if ((flags & (1 << (2 + i))) && setup->fb.cbufs[i]) {
if (!lp_setup_try_clear_color_buffer(setup, color, i)) {
lp_setup_flush(setup, NULL, __FUNCTION__);
if (!lp_setup_try_clear_color_buffer(setup, color, i))
assert(0);
}
}
}
}
}
void
lp_setup_bind_rasterizer( struct lp_setup_context *setup,
const struct pipe_rasterizer_state *rast)
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
setup->ccw_is_frontface = rast->front_ccw;
setup->cullmode = rast->cull_face;
setup->triangle = first_triangle;
setup->rect = first_rectangle;
setup->multisample = rast->multisample;
setup->pixel_offset = rast->half_pixel_center ? 0.5f : 0.0f;
setup->bottom_edge_rule = rast->bottom_edge_rule;
if (setup->scissor_test != rast->scissor) {
setup->dirty |= LP_SETUP_NEW_SCISSOR;
setup->scissor_test = rast->scissor;
}
setup->flatshade_first = rast->flatshade_first;
setup->line_width = rast->line_width;
setup->rectangular_lines = rast->line_rectangular;
setup->point_size = rast->point_size;
setup->sprite_coord_enable = rast->sprite_coord_enable;
setup->sprite_coord_origin = rast->sprite_coord_mode;
setup->point_tri_clip = rast->point_size_per_vertex;
setup->point_size_per_vertex = rast->point_size_per_vertex;
setup->legacy_points = !rast->point_quad_rasterization;
}
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);
setup->fs.current.variant = variant;
setup->dirty |= LP_SETUP_NEW_FS;
}
void
lp_setup_set_fs_constants(struct lp_setup_context *setup,
unsigned num,
struct pipe_constant_buffer *buffers)
{
LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__, (void *) buffers);
assert(num <= ARRAY_SIZE(setup->constants));
unsigned i;
for (i = 0; i < num; ++i) {
util_copy_constant_buffer(&setup->constants[i].current,
&buffers[i], false);
}
for (; i < ARRAY_SIZE(setup->constants); i++) {
util_copy_constant_buffer(&setup->constants[i].current, NULL, false);
}
setup->dirty |= LP_SETUP_NEW_CONSTANTS;
}
void
lp_setup_set_fs_ssbos(struct lp_setup_context *setup,
unsigned num,
struct pipe_shader_buffer *buffers,
uint32_t ssbo_write_mask)
{
LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__, (void *) buffers);
assert(num <= ARRAY_SIZE(setup->ssbos));
unsigned i;
for (i = 0; i < num; ++i) {
util_copy_shader_buffer(&setup->ssbos[i].current, &buffers[i]);
}
for (; i < ARRAY_SIZE(setup->ssbos); i++) {
util_copy_shader_buffer(&setup->ssbos[i].current, NULL);
}
setup->ssbo_write_mask = ssbo_write_mask;
setup->dirty |= LP_SETUP_NEW_SSBOS;
}
void
lp_setup_set_fs_images(struct lp_setup_context *setup,
unsigned num,
struct pipe_image_view *images)
{
unsigned i;
LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__, (void *) images);
assert(num <= ARRAY_SIZE(setup->images));
for (i = 0; i < num; ++i) {
const struct pipe_image_view *image = &images[i];
util_copy_image_view(&setup->images[i].current, &images[i]);
struct pipe_resource *res = image->resource;
struct llvmpipe_resource *lp_res = llvmpipe_resource(res);
struct lp_jit_image *jit_image = &setup->fs.current.jit_context.images[i];
if (!lp_res)
continue;
if (!lp_res->dt) {
/* regular texture - setup array of mipmap level offsets */
if (llvmpipe_resource_is_texture(res)) {
jit_image->base = lp_res->tex_data;
} else {
jit_image->base = lp_res->data;
}
jit_image->width = res->width0;
jit_image->height = res->height0;
jit_image->depth = res->depth0;
jit_image->num_samples = res->nr_samples;
if (llvmpipe_resource_is_texture(res)) {
uint32_t mip_offset = lp_res->mip_offsets[image->u.tex.level];
const uint32_t bw = util_format_get_blockwidth(image->resource->format);
const uint32_t bh = util_format_get_blockheight(image->resource->format);
jit_image->width = DIV_ROUND_UP(jit_image->width, bw);
jit_image->height = DIV_ROUND_UP(jit_image->height, bh);
jit_image->width = u_minify(jit_image->width, image->u.tex.level);
jit_image->height = u_minify(jit_image->height, image->u.tex.level);
if (res->target == PIPE_TEXTURE_1D_ARRAY ||
res->target == PIPE_TEXTURE_2D_ARRAY ||
res->target == PIPE_TEXTURE_3D ||
res->target == PIPE_TEXTURE_CUBE ||
res->target == PIPE_TEXTURE_CUBE_ARRAY) {
/*
* For array textures, we don't have first_layer, instead
* adjust last_layer (stored as depth) plus the mip level offsets
* (as we have mip-first layout can't just adjust base ptr).
* XXX For mip levels, could do something similar.
*/
jit_image->depth = image->u.tex.last_layer - image->u.tex.first_layer + 1;
mip_offset += image->u.tex.first_layer * lp_res->img_stride[image->u.tex.level];
} else
jit_image->depth = u_minify(jit_image->depth, image->u.tex.level);
jit_image->row_stride = lp_res->row_stride[image->u.tex.level];
jit_image->img_stride = lp_res->img_stride[image->u.tex.level];
jit_image->sample_stride = lp_res->sample_stride;
jit_image->base = (uint8_t *)jit_image->base + mip_offset;
}
else {
unsigned view_blocksize = util_format_get_blocksize(image->format);
jit_image->width = image->u.buf.size / view_blocksize;
jit_image->base = (uint8_t *)jit_image->base + image->u.buf.offset;
}
}
}
for (; i < ARRAY_SIZE(setup->images); i++) {
util_copy_image_view(&setup->images[i].current, NULL);
}
setup->dirty |= LP_SETUP_NEW_FS;
}
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_scissors(struct lp_setup_context *setup,
const struct pipe_scissor_state *scissors)
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
assert(scissors);
for (unsigned i = 0; i < PIPE_MAX_VIEWPORTS; ++i) {
setup->scissors[i].x0 = scissors[i].minx;
setup->scissors[i].x1 = scissors[i].maxx-1;
setup->scissors[i].y0 = scissors[i].miny;
setup->scissors[i].y1 = scissors[i].maxy-1;
}
setup->dirty |= LP_SETUP_NEW_SCISSOR;
}
void
lp_setup_set_sample_mask(struct lp_setup_context *setup,
uint32_t sample_mask)
{
if (setup->fs.current.jit_context.sample_mask != sample_mask) {
setup->fs.current.jit_context.sample_mask = sample_mask;
setup->dirty |= LP_SETUP_NEW_FS;
}
}
void
lp_setup_set_flatshade_first(struct lp_setup_context *setup,
boolean flatshade_first)
{
setup->flatshade_first = flatshade_first;
}
void
lp_setup_set_rasterizer_discard(struct lp_setup_context *setup,
boolean rasterizer_discard)
{
if (setup->rasterizer_discard != rasterizer_discard) {
setup->rasterizer_discard = rasterizer_discard;
setup->line = first_line;
setup->point = first_point;
setup->triangle = first_triangle;
setup->rect = first_rectangle;
}
}
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;
}
void
lp_setup_set_linear_mode(struct lp_setup_context *setup,
boolean mode)
{
/* The linear rasterizer requires sse2 both at compile and runtime,
* in particular for the code in lp_rast_linear_fallback.c. This
* is more than ten-year-old technology, so it's a reasonable
* baseline.
*/
#if defined(PIPE_ARCH_SSE)
setup->permit_linear_rasterizer = (mode &&
util_get_cpu_caps()->has_sse2);
#else
setup->permit_linear_rasterizer = FALSE;
#endif
}
/**
* Called during state validation when LP_NEW_VIEWPORT is set.
*/
void
lp_setup_set_viewports(struct lp_setup_context *setup,
unsigned num_viewports,
const struct pipe_viewport_state *viewports)
{
struct llvmpipe_context *lp = llvmpipe_context(setup->pipe);
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
assert(num_viewports <= PIPE_MAX_VIEWPORTS);
assert(viewports);
/*
* Linear rasterizer path for scissor/viewport intersection.
*
* Calculate "scissor" rect from the (first) viewport.
* Just like stored scissor rects need inclusive coords.
* For rounding, assume half pixel center (d3d9 should not end up
* with fractional viewports) - quite obviously for msaa we'd need
* fractional values here (and elsewhere for the point bounding box).
*
* See: lp_setup.c::try_update_scene_state
*/
const float half_height = fabsf(viewports[0].scale[1]);
const float x0 = viewports[0].translate[0] - viewports[0].scale[0];
const float y0 = viewports[0].translate[1] - half_height;
setup->vpwh.x0 = (int)(x0 + 0.499f);
setup->vpwh.x1 = (int)(viewports[0].scale[0] * 2.0f + x0 - 0.501f);
setup->vpwh.y0 = (int)(y0 + 0.499f);
setup->vpwh.y1 = (int)(half_height * 2.0f + y0 - 0.501f);
setup->dirty |= LP_SETUP_NEW_SCISSOR;
/*
* For use in lp_state_fs.c, propagate the viewport values for all viewports.
*/
for (unsigned i = 0; i < num_viewports; i++) {
float min_depth, max_depth;
util_viewport_zmin_zmax(&viewports[i], lp->rasterizer->clip_halfz,
&min_depth, &max_depth);
if (setup->viewports[i].min_depth != min_depth ||
setup->viewports[i].max_depth != max_depth) {
setup->viewports[i].min_depth = min_depth;
setup->viewports[i].max_depth = max_depth;
setup->dirty |= LP_SETUP_NEW_VIEWPORTS;
}
}
}
/**
* Called directly by llvmpipe_set_sampler_views
*/
void
lp_setup_set_fragment_sampler_views(struct lp_setup_context *setup,
unsigned num,
struct pipe_sampler_view **views)
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS);
const unsigned max_tex_num = MAX2(num, setup->fs.current_tex_num);
for (unsigned i = 0; i < max_tex_num; i++) {
const struct pipe_sampler_view *view = i < num ? views[i] : NULL;
/* We are going to overwrite/unref the current texture further below. If
* set, make sure to unmap its resource to avoid leaking previous
* mapping. */
if (setup->fs.current_tex[i])
llvmpipe_resource_unmap(setup->fs.current_tex[i], 0, 0);
if (view) {
struct pipe_resource *res = view->texture;
struct llvmpipe_resource *lp_tex = llvmpipe_resource(res);
struct lp_jit_texture *jit_tex;
jit_tex = &setup->fs.current.jit_context.textures[i];
/* We're referencing the texture's internal data, so save a
* reference to it.
*/
pipe_resource_reference(&setup->fs.current_tex[i], res);
if (!lp_tex->dt) {
/* regular texture - setup array of mipmap level offsets */
unsigned first_level = 0;
unsigned last_level = 0;
if (llvmpipe_resource_is_texture(res)) {
first_level = view->u.tex.first_level;
last_level = view->u.tex.last_level;
assert(first_level <= last_level);
assert(last_level <= res->last_level);
jit_tex->base = lp_tex->tex_data;
}
else {
jit_tex->base = lp_tex->data;
}
if (LP_PERF & PERF_TEX_MEM) {
/* use dummy tile memory */
jit_tex->base = 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->mip_offsets[0] = 0;
jit_tex->row_stride[0] = 0;
jit_tex->img_stride[0] = 0;
jit_tex->num_samples = 0;
jit_tex->sample_stride = 0;
}
else {
jit_tex->width = res->width0;
jit_tex->height = res->height0;
jit_tex->depth = res->depth0;
jit_tex->first_level = first_level;
jit_tex->last_level = last_level;
jit_tex->num_samples = res->nr_samples;
jit_tex->sample_stride = 0;
if (llvmpipe_resource_is_texture(res)) {
for (unsigned j = first_level; j <= last_level; j++) {
jit_tex->mip_offsets[j] = lp_tex->mip_offsets[j];
jit_tex->row_stride[j] = lp_tex->row_stride[j];
jit_tex->img_stride[j] = lp_tex->img_stride[j];
}
jit_tex->sample_stride = lp_tex->sample_stride;
if (res->target == PIPE_TEXTURE_1D_ARRAY ||
res->target == PIPE_TEXTURE_2D_ARRAY ||
res->target == PIPE_TEXTURE_CUBE ||
res->target == PIPE_TEXTURE_CUBE_ARRAY ||
(res->target == PIPE_TEXTURE_3D && view->target == PIPE_TEXTURE_2D)) {
/*
* For array textures, we don't have first_layer, instead
* adjust last_layer (stored as depth) plus the mip level
* offsets (as we have mip-first layout can't just adjust
* base ptr). XXX For mip levels, could do something
* similar.
*/
jit_tex->depth = view->u.tex.last_layer - view->u.tex.first_layer + 1;
for (unsigned j = first_level; j <= last_level; j++) {
jit_tex->mip_offsets[j] += view->u.tex.first_layer *
lp_tex->img_stride[j];
}
if (view->target == PIPE_TEXTURE_CUBE ||
view->target == PIPE_TEXTURE_CUBE_ARRAY) {
assert(jit_tex->depth % 6 == 0);
}
assert(view->u.tex.first_layer <= view->u.tex.last_layer);
if (res->target == PIPE_TEXTURE_3D)
assert(view->u.tex.last_layer < res->depth0);
else
assert(view->u.tex.last_layer < res->array_size);
}
}
else {
/*
* For buffers, we don't have "offset", instead adjust
* the size (stored as width) plus the base pointer.
*/
const unsigned view_blocksize =
util_format_get_blocksize(view->format);
/* probably don't really need to fill that out */
jit_tex->mip_offsets[0] = 0;
jit_tex->row_stride[0] = 0;
jit_tex->img_stride[0] = 0;
/* everything specified in number of elements here. */
jit_tex->width = view->u.buf.size / view_blocksize;
jit_tex->base = (uint8_t *)jit_tex->base + view->u.buf.offset;
/* XXX Unsure if we need to sanitize parameters? */
assert(view->u.buf.offset + view->u.buf.size <= res->width0);
}
}
}
else {
/* display target texture/surface */
jit_tex->base = llvmpipe_resource_map(res, 0, 0, LP_TEX_USAGE_READ);
jit_tex->row_stride[0] = lp_tex->row_stride[0];
jit_tex->img_stride[0] = lp_tex->img_stride[0];
jit_tex->mip_offsets[0] = 0;
jit_tex->width = res->width0;
jit_tex->height = res->height0;
jit_tex->depth = res->depth0;
jit_tex->first_level = jit_tex->last_level = 0;
jit_tex->num_samples = res->nr_samples;
jit_tex->sample_stride = 0;
assert(jit_tex->base);
}
}
else {
pipe_resource_reference(&setup->fs.current_tex[i], NULL);
}
}
setup->fs.current_tex_num = num;
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)
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
assert(num <= PIPE_MAX_SAMPLERS);
for (unsigned i = 0; i < PIPE_MAX_SAMPLERS; i++) {
const struct pipe_sampler_state *sampler = i < num ? samplers[i] : NULL;
if (sampler) {
struct lp_jit_sampler *jit_sam;
jit_sam = &setup->fs.current.jit_context.samplers[i];
jit_sam->min_lod = sampler->min_lod;
jit_sam->max_lod = sampler->max_lod;
jit_sam->lod_bias = sampler->lod_bias;
jit_sam->max_aniso = sampler->max_anisotropy;
COPY_4V(jit_sam->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)
{
/* check the render targets */
for (unsigned i = 0; i < setup->fb.nr_cbufs; i++) {
if (setup->fb.cbufs[i] && 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 resources referenced by active scenes */
for (unsigned i = 0; i < setup->num_active_scenes; i++) {
struct lp_scene *scene = setup->scenes[i];
/* check the render targets */
for (unsigned j = 0; j < scene->fb.nr_cbufs; j++) {
if (scene->fb.cbufs[j] && scene->fb.cbufs[j]->texture == texture)
return LP_REFERENCED_FOR_READ | LP_REFERENCED_FOR_WRITE;
}
if (scene->fb.zsbuf && scene->fb.zsbuf->texture == texture) {
return LP_REFERENCED_FOR_READ | LP_REFERENCED_FOR_WRITE;
}
/* check resources referenced by the scene */
unsigned ref = lp_scene_is_resource_referenced(scene, texture);
if (ref)
return ref;
}
return LP_UNREFERENCED;
}
/**
* Called by vbuf code when we're about to draw something.
*
* This function stores all dirty state in the current scene's display list
* memory, via lp_scene_alloc(). We can not pass pointers of mutable state to
* the JIT functions, as the JIT functions will be called later on, most likely
* on a different thread.
*
* When processing dirty state it is imperative that we don't refer to any
* pointers previously allocated with lp_scene_alloc() in this function (or any
* function) as they may belong to a scene freed since then.
*/
static boolean
try_update_scene_state(struct lp_setup_context *setup)
{
static const float fake_const_buf[4];
boolean new_scene = (setup->fs.stored == NULL);
struct lp_scene *scene = setup->scene;
assert(scene);
if (setup->dirty & LP_SETUP_NEW_VIEWPORTS) {
/*
* Record new depth range state for changes due to viewport updates.
*
* TODO: Collapse the existing viewport and depth range information
* into one structure, for access by JIT.
*/
struct lp_jit_viewport *stored;
stored = (struct lp_jit_viewport *)
lp_scene_alloc(scene, sizeof setup->viewports);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored, setup->viewports, sizeof setup->viewports);
setup->fs.current.jit_context.viewports = stored;
setup->dirty |= LP_SETUP_NEW_FS;
}
if (setup->dirty & LP_SETUP_NEW_BLEND_COLOR) {
/* Alloc u8_blend_color (16 x i8) and f_blend_color (4 or 8 x f32) */
const unsigned size = 4 * 16 * sizeof(uint8_t)
+ (LP_MAX_VECTOR_LENGTH / 4) * sizeof(float);
uint8_t *stored =
lp_scene_alloc_aligned(scene, size, LP_MIN_VECTOR_ALIGN);
if (!stored) {
assert(!new_scene);
return FALSE;
}
/* Store floating point colour (after ubyte colors (see below)) */
float *fstored = (float *) (stored + 4 * 16);
for (unsigned i = 0; i < (LP_MAX_VECTOR_LENGTH / 4); ++i) {
fstored[i] = setup->blend_color.current.color[i % 4];
}
/* smear each blend color component across 16 ubyte elements */
for (unsigned i = 0; i < 4; ++i) {
uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
for (unsigned j = 0; j < 16; ++j) {
stored[i*16 + j] = c;
}
}
setup->blend_color.stored = stored;
setup->fs.current.jit_context.u8_blend_color = stored;
setup->fs.current.jit_context.f_blend_color = fstored;
setup->dirty |= LP_SETUP_NEW_FS;
}
struct llvmpipe_context *llvmpipe = llvmpipe_context(setup->pipe);
if (llvmpipe->dirty & LP_NEW_FS_CONSTANTS)
lp_setup_set_fs_constants(llvmpipe->setup,
ARRAY_SIZE(llvmpipe->constants[PIPE_SHADER_FRAGMENT]),
llvmpipe->constants[PIPE_SHADER_FRAGMENT]);
if (setup->dirty & LP_SETUP_NEW_CONSTANTS) {
for (unsigned i = 0; i < ARRAY_SIZE(setup->constants); ++i) {
struct pipe_resource *buffer = setup->constants[i].current.buffer;
const unsigned current_size = MIN2(setup->constants[i].current.buffer_size,
LP_MAX_TGSI_CONST_BUFFER_SIZE);
const ubyte *current_data = NULL;
STATIC_ASSERT(DATA_BLOCK_SIZE >= LP_MAX_TGSI_CONST_BUFFER_SIZE);
if (buffer) {
/* resource buffer */
current_data = (ubyte *) llvmpipe_resource_data(buffer);
}
else if (setup->constants[i].current.user_buffer) {
/* user-space buffer */
current_data = (ubyte *) setup->constants[i].current.user_buffer;
}
if (current_data && current_size >= sizeof(float)) {
current_data += setup->constants[i].current.buffer_offset;
/* TODO: copy only the actually used constants? */
if (setup->constants[i].stored_size != current_size ||
!setup->constants[i].stored_data ||
memcmp(setup->constants[i].stored_data,
current_data,
current_size) != 0) {
void *stored = lp_scene_alloc(scene, current_size);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(stored,
current_data,
current_size);
setup->constants[i].stored_size = current_size;
setup->constants[i].stored_data = stored;
}
setup->fs.current.jit_context.constants[i] =
setup->constants[i].stored_data;
}
else {
setup->constants[i].stored_size = 0;
setup->constants[i].stored_data = NULL;
setup->fs.current.jit_context.constants[i] = fake_const_buf;
}
const int num_constants =
DIV_ROUND_UP(setup->constants[i].stored_size,
lp_get_constant_buffer_stride(scene->pipe->screen));
setup->fs.current.jit_context.num_constants[i] = num_constants;
setup->dirty |= LP_SETUP_NEW_FS;
}
}
if (setup->dirty & LP_SETUP_NEW_SSBOS) {
for (unsigned i = 0; i < ARRAY_SIZE(setup->ssbos); ++i) {
struct pipe_resource *buffer = setup->ssbos[i].current.buffer;
const ubyte *current_data = NULL;
/* resource buffer */
if (buffer)
current_data = (ubyte *) llvmpipe_resource_data(buffer);
if (current_data) {
current_data += setup->ssbos[i].current.buffer_offset;
setup->fs.current.jit_context.ssbos[i] =
(const uint32_t *)current_data;
setup->fs.current.jit_context.num_ssbos[i] =
setup->ssbos[i].current.buffer_size;
} else {
setup->fs.current.jit_context.ssbos[i] = NULL;
setup->fs.current.jit_context.num_ssbos[i] = 0;
}
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) {
/* 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.
*/
struct lp_rast_state *stored =
(struct lp_rast_state *) lp_scene_alloc(scene, sizeof *stored);
if (!stored) {
assert(!new_scene);
return FALSE;
}
memcpy(&stored->jit_context,
&setup->fs.current.jit_context,
sizeof setup->fs.current.jit_context);
stored->jit_context.aniso_filter_table =
lp_build_sample_aniso_filter_table();
stored->variant = setup->fs.current.variant;
if (!lp_scene_add_frag_shader_reference(scene,
setup->fs.current.variant)) {
return FALSE;
}
setup->fs.stored = stored;
/* The scene now references the textures in the rasterization
* state record. Note that now.
*/
for (unsigned i = 0; i < ARRAY_SIZE(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, false)) {
assert(!new_scene);
return FALSE;
}
}
}
for (unsigned i = 0; i < ARRAY_SIZE(setup->ssbos); i++) {
if (setup->ssbos[i].current.buffer) {
if (!lp_scene_add_resource_reference(scene,
setup->ssbos[i].current.buffer,
new_scene, setup->ssbo_write_mask & (1 << i))) {
assert(!new_scene);
return FALSE;
}
}
}
for (unsigned i = 0; i < ARRAY_SIZE(setup->images); i++) {
if (setup->images[i].current.resource) {
if (!lp_scene_add_resource_reference(scene,
setup->images[i].current.resource,
new_scene,
setup->images[i].current.shader_access & PIPE_IMAGE_ACCESS_WRITE)) {
assert(!new_scene);
return FALSE;
}
}
}
}
}
if (setup->dirty & LP_SETUP_NEW_SCISSOR) {
for (unsigned i = 0; i < PIPE_MAX_VIEWPORTS; ++i) {
setup->draw_regions[i] = setup->framebuffer;
if (setup->scissor_test) {
u_rect_possible_intersection(&setup->scissors[i],
&setup->draw_regions[i]);
}
}
if (setup->permit_linear_rasterizer) {
/* NOTE: this only takes first vp into account. */
boolean need_vp_scissoring =
!!memcmp(&setup->vpwh, &setup->framebuffer,
sizeof(setup->framebuffer));
assert(setup->viewport_index_slot < 0);
if (need_vp_scissoring) {
u_rect_possible_intersection(&setup->vpwh,
&setup->draw_regions[0]);
}
}
else if (setup->point_tri_clip) {
/*
* for d3d-style point clipping, we're going to need
* the fake vp scissor too. Hence do the intersection with vp,
* but don't indicate this. As above this will only work for first vp
* which should be ok because we instruct draw to only skip point
* clipping when there's only one viewport (this works because d3d10
* points are always single pixel).
* (Also note that if we have permit_linear_rasterizer this will
* cause large points to always get vp scissored, regardless the
* point_tri_clip setting.)
*/
boolean need_vp_scissoring =
!!memcmp(&setup->vpwh, &setup->framebuffer,
sizeof(setup->framebuffer));
if (need_vp_scissoring) {
u_rect_possible_intersection(&setup->vpwh,
&setup->draw_regions[0]);
}
}
}
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_slot = lp->psize_slot;
setup->viewport_index_slot = lp->viewport_index_slot;
setup->layer_slot = lp->layer_slot;
setup->face_slot = lp->face_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)
{
lp_setup_reset(setup);
util_unreference_framebuffer_state(&setup->fb);
for (unsigned i = 0; i < ARRAY_SIZE(setup->fs.current_tex); i++) {
struct pipe_resource **res_ptr = &setup->fs.current_tex[i];
if (*res_ptr)
llvmpipe_resource_unmap(*res_ptr, 0, 0);
pipe_resource_reference(res_ptr, NULL);
}
for (unsigned i = 0; i < ARRAY_SIZE(setup->constants); i++) {
pipe_resource_reference(&setup->constants[i].current.buffer, NULL);
}
for (unsigned i = 0; i < ARRAY_SIZE(setup->ssbos); i++) {
pipe_resource_reference(&setup->ssbos[i].current.buffer, NULL);
}
/* free the scenes in the 'empty' queue */
for (unsigned i = 0; i < setup->num_active_scenes; i++) {
struct lp_scene *scene = setup->scenes[i];
if (scene->fence)
lp_fence_wait(scene->fence);
lp_scene_destroy(scene);
}
LP_DBG(DEBUG_SETUP, "number of scenes used: %d\n", setup->num_active_scenes);
slab_destroy(&setup->scene_slab);
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 = 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);
slab_create(&setup->scene_slab,
sizeof(struct lp_scene),
INITIAL_SCENES);
/* create just one scene for starting point */
setup->scenes[0] = lp_scene_create(setup);
if (!setup->scenes[0]) {
goto no_scenes;
}
setup->num_active_scenes++;
setup->triangle = first_triangle;
setup->line = first_line;
setup->point = first_point;
setup->dirty = ~0;
/* Initialize empty default fb correctly, so the rect is empty */
setup->framebuffer.x1 = -1;
setup->framebuffer.y1 = -1;
return setup;
no_scenes:
for (unsigned 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)
{
set_scene_state(setup, SETUP_ACTIVE, "begin_query");
if (!(pq->type == PIPE_QUERY_OCCLUSION_COUNTER ||
pq->type == PIPE_QUERY_OCCLUSION_PREDICATE ||
pq->type == PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE ||
pq->type == PIPE_QUERY_PIPELINE_STATISTICS ||
pq->type == PIPE_QUERY_TIME_ELAPSED))
return;
/* init the query to its beginning state */
assert(setup->active_binned_queries < LP_MAX_ACTIVE_BINNED_QUERIES);
/* exceeding list size so just ignore the query */
if (setup->active_binned_queries >= LP_MAX_ACTIVE_BINNED_QUERIES) {
return;
}
assert(setup->active_queries[setup->active_binned_queries] == NULL);
setup->active_queries[setup->active_binned_queries] = pq;
setup->active_binned_queries++;
assert(setup->scene);
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;
}
}
setup->scene->had_queries |= TRUE;
}
}
/**
* Put an EndQuery command into all bins.
*/
void
lp_setup_end_query(struct lp_setup_context *setup, struct llvmpipe_query *pq)
{
set_scene_state(setup, SETUP_ACTIVE, "end_query");
assert(setup->scene);
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 (pq->type == PIPE_QUERY_OCCLUSION_COUNTER ||
pq->type == PIPE_QUERY_OCCLUSION_PREDICATE ||
pq->type == PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE ||
pq->type == PIPE_QUERY_PIPELINE_STATISTICS ||
pq->type == PIPE_QUERY_TIMESTAMP ||
pq->type == PIPE_QUERY_TIME_ELAPSED) {
if (pq->type == PIPE_QUERY_TIMESTAMP &&
!(setup->scene->tiles_x | setup->scene->tiles_y)) {
/*
* If there's a zero width/height framebuffer, there's no bins and
* hence no rast task is ever run. So fill in something here instead.
*/
pq->end[0] = os_time_get_nano();
}
if (!lp_scene_bin_everywhere(setup->scene,
LP_RAST_OP_END_QUERY,
lp_rast_arg_query(pq))) {
if (!lp_setup_flush_and_restart(setup))
goto fail;
if (!lp_scene_bin_everywhere(setup->scene,
LP_RAST_OP_END_QUERY,
lp_rast_arg_query(pq))) {
goto fail;
}
}
setup->scene->had_queries |= TRUE;
}
}
else {
lp_fence_reference(&pq->fence, setup->last_fence);
}
fail:
/* Need to do this now not earlier since it still needs to be marked as
* active when binning it would cause a flush.
*/
if (pq->type == PIPE_QUERY_OCCLUSION_COUNTER ||
pq->type == PIPE_QUERY_OCCLUSION_PREDICATE ||
pq->type == PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE ||
pq->type == PIPE_QUERY_PIPELINE_STATISTICS ||
pq->type == PIPE_QUERY_TIME_ELAPSED) {
unsigned i;
/* remove from active binned query list */
for (i = 0; i < setup->active_binned_queries; i++) {
if (setup->active_queries[i] == pq)
break;
}
assert(i < setup->active_binned_queries);
if (i == setup->active_binned_queries)
return;
setup->active_binned_queries--;
setup->active_queries[i] = setup->active_queries[setup->active_binned_queries];
setup->active_queries[setup->active_binned_queries] = NULL;
}
}
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;
}
void
lp_setup_add_scissor_planes(const struct u_rect *scissor,
struct lp_rast_plane *plane_s,
boolean s_planes[4], bool multisample)
{
/*
* When rasterizing scissored tris, use the intersection of the
* triangle bounding box and the scissor rect to generate the
* scissor planes.
*
* This permits us to cut off the triangle "tails" that are present
* in the intermediate recursive levels caused when two of the
* triangles edges don't diverge quickly enough to trivially reject
* exterior blocks from the triangle.
*
* It's not really clear if it's worth worrying about these tails,
* but since we generate the planes for each scissored tri, it's
* free to trim them in this case.
*
* Note that otherwise, the scissor planes only vary in 'C' value,
* and even then only on state-changes. Could alternatively store
* these planes elsewhere.
* (Or only store the c value together with a bit indicating which
* scissor edge this is, so rasterization would treat them differently
* (easier to evaluate) to ordinary planes.)
*/
int adj = multisample ? 127 : 0;
if (s_planes[0]) {
int x0 = scissor->x0 - 1;
plane_s->dcdx = ~0U << 8;
plane_s->dcdy = 0;
plane_s->c = x0 << 8;
plane_s->c += adj;
plane_s->c = -plane_s->c; /* flip sign */
plane_s->eo = 1 << 8;
plane_s++;
}
if (s_planes[1]) {
int x1 = scissor->x1;
plane_s->dcdx = 1 << 8;
plane_s->dcdy = 0;
plane_s->c = x1 << 8;
plane_s->c += 127 + adj;
plane_s->eo = 0 << 8;
plane_s++;
}
if (s_planes[2]) {
int y0 = scissor->y0 - 1;
plane_s->dcdx = 0;
plane_s->dcdy = 1 << 8;
plane_s->c = y0 << 8;
plane_s->c += adj;
plane_s->c = -plane_s->c; /* flip sign */
plane_s->eo = 1 << 8;
plane_s++;
}
if (s_planes[3]) {
int y1 = scissor->y1;
plane_s->dcdx = 0;
plane_s->dcdy = ~0U << 8;
plane_s->c = y1 << 8;
plane_s->c += 127 + adj;
plane_s->eo = 0;
plane_s++;
}
}
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