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dbcd5622d5c0287ffa8c84dac4465af7cc92c5b7
third_party_mesa3d/src/gallium/drivers/llvmpipe/lp_setup.c
Vinson Lee dbcd5622d5 llvmpipe: Remove unnecessary headers.
2010-05-04 22:57:24 -07:00

859 lines
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/**************************************************************************
*
* 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 "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 "lp_context.h"
#include "lp_scene.h"
#include "lp_scene_queue.h"
#include "lp_texture.h"
#include "lp_debug.h"
#include "lp_fence.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 void set_scene_state( struct lp_setup_context *, enum setup_state );
struct lp_scene *
lp_setup_get_current_scene(struct lp_setup_context *setup)
{
if (!setup->scene) {
/* wait for a free/empty scene
*/
setup->scene = lp_scene_dequeue(setup->empty_scenes, TRUE);
assert(lp_scene_is_empty(setup->scene));
lp_scene_begin_binning(setup->scene,
&setup->fb );
}
return setup->scene;
}
/**
* Check if the size of the current scene has exceeded the limit.
* If so, flush/render it.
*/
static void
setup_check_scene_size_and_flush(struct lp_setup_context *setup)
{
if (setup->scene) {
struct lp_scene *scene = lp_setup_get_current_scene(setup);
unsigned size = lp_scene_get_size(scene);
if (size > LP_MAX_SCENE_SIZE) {
/*printf("LLVMPIPE: scene size = %u, flushing.\n", size);*/
set_scene_state( setup, SETUP_FLUSHED );
/*assert(lp_scene_get_size(scene) == 0);*/
}
}
}
static void
first_triangle( struct lp_setup_context *setup,
const float (*v0)[4],
const float (*v1)[4],
const float (*v2)[4])
{
set_scene_state( setup, 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])
{
set_scene_state( setup, 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])
{
set_scene_state( setup, SETUP_ACTIVE );
lp_setup_choose_point( setup );
setup->point( setup, v0 );
}
static void reset_context( 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:
*/
setup->clear.flags = 0;
/* 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 = lp_setup_get_current_scene(setup);
lp_scene_rasterize(scene, setup->rast);
reset_context( setup );
LP_DBG(DEBUG_SETUP, "%s done \n", __FUNCTION__);
}
static void
begin_binning( struct lp_setup_context *setup )
{
struct lp_scene *scene = lp_setup_get_current_scene(setup);
LP_DBG(DEBUG_SETUP, "%s color: %s depth: %s\n", __FUNCTION__,
(setup->clear.flags & PIPE_CLEAR_COLOR) ? "clear": "load",
(setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) ? "clear": "load");
if (setup->fb.nr_cbufs) {
if (setup->clear.flags & PIPE_CLEAR_COLOR) {
lp_scene_bin_everywhere( scene,
lp_rast_clear_color,
setup->clear.color );
scene->has_color_clear = TRUE;
}
}
if (setup->fb.zsbuf) {
if (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) {
lp_scene_bin_everywhere( scene,
lp_rast_clear_zstencil,
setup->clear.zstencil );
scene->has_depth_clear = TRUE;
}
}
LP_DBG(DEBUG_SETUP, "%s done\n", __FUNCTION__);
}
/* This basically bins and then flushes any outstanding full-screen
* clears.
*
* TODO: fast path for fullscreen clears and no triangles.
*/
static void
execute_clears( struct lp_setup_context *setup )
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
begin_binning( setup );
lp_setup_rasterize_scene( setup );
}
static void
set_scene_state( struct lp_setup_context *setup,
enum setup_state new_state )
{
unsigned old_state = setup->state;
if (old_state == new_state)
return;
LP_DBG(DEBUG_SETUP, "%s old %d new %d\n", __FUNCTION__, old_state, new_state);
switch (new_state) {
case SETUP_ACTIVE:
begin_binning( setup );
break;
case SETUP_CLEARED:
if (old_state == SETUP_ACTIVE) {
assert(0);
return;
}
break;
case SETUP_FLUSHED:
if (old_state == SETUP_CLEARED)
execute_clears( setup );
else
lp_setup_rasterize_scene( setup );
break;
default:
assert(0 && "invalid setup state mode");
}
setup->state = new_state;
}
/**
* \param flags bitmask of PIPE_FLUSH_x flags
*/
void
lp_setup_flush( struct lp_setup_context *setup,
unsigned flags )
{
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
if (setup->scene) {
struct lp_scene *scene = lp_setup_get_current_scene(setup);
union lp_rast_cmd_arg dummy = {0};
if (flags & (PIPE_FLUSH_SWAPBUFFERS |
PIPE_FLUSH_FRAME)) {
/* Store colors in the linear color buffer(s).
* If we don't do this here, we'll end up converting the tiled
* data to linear in the texture_unmap() function, which will
* not be a parallel/threaded operation as here.
*/
lp_scene_bin_everywhere(scene, lp_rast_store_color, dummy);
}
}
set_scene_state( setup, SETUP_FLUSHED );
}
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 );
/* Set new state. This will be picked up later when we next need a
* scene.
*/
util_copy_framebuffer_state(&setup->fb, fb);
}
void
lp_setup_clear( struct lp_setup_context *setup,
const float *color,
double depth,
unsigned stencil,
unsigned flags )
{
struct lp_scene *scene = lp_setup_get_current_scene(setup);
unsigned i;
LP_DBG(DEBUG_SETUP, "%s state %d\n", __FUNCTION__, setup->state);
if (flags & PIPE_CLEAR_COLOR) {
for (i = 0; i < 4; ++i)
setup->clear.color.clear_color[i] = float_to_ubyte(color[i]);
}
if (flags & PIPE_CLEAR_DEPTHSTENCIL) {
setup->clear.zstencil.clear_zstencil =
util_pack_z_stencil(setup->fb.zsbuf->format,
depth,
stencil);
}
if (setup->state == SETUP_ACTIVE) {
/* 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) {
lp_scene_bin_everywhere( scene,
lp_rast_clear_color,
setup->clear.color );
scene->has_color_clear = TRUE;
}
if (setup->clear.flags & PIPE_CLEAR_DEPTHSTENCIL) {
lp_scene_bin_everywhere( scene,
lp_rast_clear_zstencil,
setup->clear.zstencil );
scene->has_depth_clear = TRUE;
}
}
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 );
setup->clear.flags |= flags;
}
}
/**
* Emit a fence.
*/
struct pipe_fence_handle *
lp_setup_fence( struct lp_setup_context *setup )
{
if (setup->num_threads == 0) {
return NULL;
}
else {
struct lp_scene *scene = lp_setup_get_current_scene(setup);
const unsigned rank = lp_scene_get_num_bins( scene ); /* xxx */
struct lp_fence *fence = lp_fence_create(rank);
LP_DBG(DEBUG_SETUP, "%s rank %u\n", __FUNCTION__, rank);
set_scene_state( setup, SETUP_ACTIVE );
/* insert the fence into all command bins */
lp_scene_bin_everywhere( scene,
lp_rast_fence,
lp_rast_arg_fence(fence) );
return (struct pipe_fence_handle *) fence;
}
}
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->scissor_test = scissor;
setup->pixel_offset = gl_rasterization_rules ? 0.5f : 0.0f;
}
void
lp_setup_set_fs_inputs( struct lp_setup_context *setup,
const struct lp_shader_input *input,
unsigned nr )
{
LP_DBG(DEBUG_SETUP, "%s %p %u\n", __FUNCTION__, (void *) input, nr);
memcpy( setup->fs.input, input, nr * sizeof input[0] );
setup->fs.nr_inputs = nr;
}
void
lp_setup_set_fs_functions( struct lp_setup_context *setup,
lp_jit_frag_func jit_function0,
lp_jit_frag_func jit_function1,
boolean opaque )
{
LP_DBG(DEBUG_SETUP, "%s %p\n", __FUNCTION__, (void *) jit_function0);
/* FIXME: reference count */
setup->fs.current.jit_function[0] = jit_function0;
setup->fs.current.jit_function[1] = jit_function1;
setup->fs.current.opaque = opaque;
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);
if (memcmp(&setup->scissor.current, scissor, sizeof(*scissor)) != 0) {
setup->scissor.current = *scissor; /* struct copy */
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->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 = 0; 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];
}
}
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;
}
/**
* 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 PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
}
if (setup->fb.zsbuf && setup->fb.zsbuf->texture == texture) {
return PIPE_REFERENCED_FOR_READ | PIPE_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 PIPE_REFERENCED_FOR_READ;
}
}
return PIPE_UNREFERENCED;
}
/**
* Called by vbuf code when we're about to draw something.
*/
void
lp_setup_update_state( struct lp_setup_context *setup )
{
struct lp_scene *scene;
LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
setup_check_scene_size_and_flush(setup);
scene = lp_setup_get_current_scene(setup);
assert(setup->fs.current.jit_function);
/* 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(scene->pipe);
if (lp->dirty) {
llvmpipe_update_derived(lp);
}
assert(lp->dirty == 0);
}
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) {
/* 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_SCISSOR) {
float *stored;
stored = lp_scene_alloc_aligned(scene, 4 * sizeof(int32_t), 16);
if (stored) {
stored[0] = (float) setup->scissor.current.minx;
stored[1] = (float) setup->scissor.current.miny;
stored[2] = (float) setup->scissor.current.maxx;
stored[3] = (float) setup->scissor.current.maxy;
setup->scissor.stored = stored;
setup->fs.current.jit_context.scissor_xmin = stored[0];
setup->fs.current.jit_context.scissor_ymin = stored[1];
setup->fs.current.jit_context.scissor_xmax = stored[2];
setup->fs.current.jit_context.scissor_ymax = stored[3];
}
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) {
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) {
/* 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.
*/
uint i;
struct lp_rast_state *stored =
(struct lp_rast_state *) lp_scene_alloc(scene, sizeof *stored);
if(stored) {
memcpy(stored,
&setup->fs.current,
sizeof setup->fs.current);
setup->fs.stored = stored;
/* put the state-set command into all bins */
lp_scene_bin_state_command( scene,
lp_rast_set_state,
lp_rast_arg_state(setup->fs.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])
lp_scene_add_resource_reference(scene, setup->fs.current_tex[i]);
}
}
}
setup->dirty = 0;
assert(setup->fs.stored);
}
/* Only caller is lp_setup_vbuf_destroy()
*/
void
lp_setup_destroy( struct lp_setup_context *setup )
{
uint i;
reset_context( 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 */
while (1) {
struct lp_scene *scene = lp_scene_dequeue(setup->empty_scenes, FALSE);
if (!scene)
break;
lp_scene_destroy(scene);
}
lp_scene_queue_destroy(setup->empty_scenes);
lp_rast_destroy( setup->rast );
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);
unsigned i;
if (!setup)
return NULL;
lp_setup_init_vbuf(setup);
setup->empty_scenes = lp_scene_queue_create();
if (!setup->empty_scenes)
goto fail;
/* XXX: move this to the screen and share between contexts:
*/
setup->num_threads = screen->num_threads;
setup->rast = lp_rast_create(screen->num_threads);
if (!setup->rast)
goto fail;
setup->vbuf = draw_vbuf_stage(draw, &setup->base);
if (!setup->vbuf)
goto fail;
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, setup->empty_scenes );
lp_scene_enqueue(setup->empty_scenes, setup->scenes[i]);
}
setup->triangle = first_triangle;
setup->line = first_line;
setup->point = first_point;
setup->dirty = ~0;
return setup;
fail:
if (setup->rast)
lp_rast_destroy( setup->rast );
if (setup->vbuf)
;
if (setup->empty_scenes)
lp_scene_queue_destroy(setup->empty_scenes);
FREE(setup);
return NULL;
}
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