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|
/**************************************************************************
*
* Copyright 2009 Younes Manton.
* 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.
*
**************************************************************************/
#include "vl_compositor.h"
#include <assert.h>
#include <pipe/p_context.h>
#include <util/u_inlines.h>
#include <util/u_memory.h>
#include <util/u_keymap.h>
#include <util/u_sampler.h>
#include <tgsi/tgsi_ureg.h>
#include "vl_csc.h"
struct vertex_shader_consts
{
struct vertex4f dst_scale;
struct vertex4f dst_trans;
struct vertex4f src_scale;
struct vertex4f src_trans;
};
struct fragment_shader_consts
{
float matrix[16];
};
static bool
u_video_rects_equal(struct pipe_video_rect *a, struct pipe_video_rect *b)
{
assert(a && b);
if (a->x != b->x)
return false;
if (a->y != b->y)
return false;
if (a->w != b->w)
return false;
if (a->h != b->h)
return false;
return true;
}
static bool
create_vert_shader(struct vl_compositor *c)
{
struct ureg_program *shader;
struct ureg_src vpos, vtex;
struct ureg_dst o_vpos, o_vtex;
shader = ureg_create(TGSI_PROCESSOR_VERTEX);
if (!shader)
return false;
vpos = ureg_DECL_vs_input(shader, 0);
vtex = ureg_DECL_vs_input(shader, 1);
o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, 0);
o_vtex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, 1);
/*
* o_vpos = vpos
* o_vtex = vtex
*/
ureg_MOV(shader, o_vpos, vpos);
ureg_MOV(shader, o_vtex, vtex);
ureg_END(shader);
c->vertex_shader = ureg_create_shader_and_destroy(shader, c->pipe);
if (!c->vertex_shader)
return false;
return true;
}
static bool
create_frag_shader_ycbcr_2_rgb(struct vl_compositor *c)
{
struct ureg_program *shader;
struct ureg_src tc;
struct ureg_src csc[4];
struct ureg_src sampler;
struct ureg_dst texel;
struct ureg_dst fragment;
unsigned i;
shader = ureg_create(TGSI_PROCESSOR_FRAGMENT);
if (!shader)
return false;
tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR);
for (i = 0; i < 4; ++i)
csc[i] = ureg_DECL_constant(shader, i);
sampler = ureg_DECL_sampler(shader, 0);
texel = ureg_DECL_temporary(shader);
fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
/*
* texel = tex(tc, sampler)
* fragment = csc * texel
*/
ureg_TEX(shader, texel, TGSI_TEXTURE_2D, tc, sampler);
for (i = 0; i < 4; ++i)
ureg_DP4(shader, ureg_writemask(fragment, TGSI_WRITEMASK_X << i), csc[i], ureg_src(texel));
ureg_release_temporary(shader, texel);
ureg_END(shader);
c->fragment_shader.ycbcr_2_rgb = ureg_create_shader_and_destroy(shader, c->pipe);
if (!c->fragment_shader.ycbcr_2_rgb)
return false;
return true;
}
static bool
create_frag_shader_rgb_2_rgb(struct vl_compositor *c)
{
struct ureg_program *shader;
struct ureg_src tc;
struct ureg_src sampler;
struct ureg_dst fragment;
shader = ureg_create(TGSI_PROCESSOR_FRAGMENT);
if (!shader)
return false;
tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR);
sampler = ureg_DECL_sampler(shader, 0);
fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
/*
* fragment = tex(tc, sampler)
*/
ureg_TEX(shader, fragment, TGSI_TEXTURE_2D, tc, sampler);
ureg_END(shader);
c->fragment_shader.rgb_2_rgb = ureg_create_shader_and_destroy(shader, c->pipe);
if (!c->fragment_shader.rgb_2_rgb)
return false;
return true;
}
static bool
init_pipe_state(struct vl_compositor *c)
{
struct pipe_sampler_state sampler;
assert(c);
c->fb_state.nr_cbufs = 1;
c->fb_state.zsbuf = NULL;
sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
sampler.compare_mode = PIPE_TEX_COMPARE_NONE;
sampler.compare_func = PIPE_FUNC_ALWAYS;
sampler.normalized_coords = 1;
/*sampler.lod_bias = ;*/
/*sampler.min_lod = ;*/
/*sampler.max_lod = ;*/
/*sampler.border_color[i] = ;*/
/*sampler.max_anisotropy = ;*/
c->sampler = c->pipe->create_sampler_state(c->pipe, &sampler);
return true;
}
static void cleanup_pipe_state(struct vl_compositor *c)
{
assert(c);
c->pipe->delete_sampler_state(c->pipe, c->sampler);
}
static bool
init_shaders(struct vl_compositor *c)
{
assert(c);
if (!create_vert_shader(c)) {
debug_printf("Unable to create vertex shader.\n");
return false;
}
if (!create_frag_shader_ycbcr_2_rgb(c)) {
debug_printf("Unable to create YCbCr-to-RGB fragment shader.\n");
return false;
}
if (!create_frag_shader_rgb_2_rgb(c)) {
debug_printf("Unable to create RGB-to-RGB fragment shader.\n");
return false;
}
return true;
}
static void cleanup_shaders(struct vl_compositor *c)
{
assert(c);
c->pipe->delete_vs_state(c->pipe, c->vertex_shader);
c->pipe->delete_fs_state(c->pipe, c->fragment_shader.ycbcr_2_rgb);
c->pipe->delete_fs_state(c->pipe, c->fragment_shader.rgb_2_rgb);
}
static bool
init_buffers(struct vl_compositor *c)
{
struct fragment_shader_consts fsc;
struct pipe_vertex_element vertex_elems[2];
assert(c);
/*
* Create our vertex buffer and vertex buffer elements
*/
c->vertex_buf.stride = sizeof(struct vertex4f);
c->vertex_buf.max_index = (VL_COMPOSITOR_MAX_LAYERS + 2) * 6 - 1;
c->vertex_buf.buffer_offset = 0;
/* XXX: Create with DYNAMIC or STREAM */
c->vertex_buf.buffer = pipe_buffer_create
(
c->pipe->screen,
PIPE_BIND_VERTEX_BUFFER,
sizeof(struct vertex4f) * (VL_COMPOSITOR_MAX_LAYERS + 2) * 6
);
vertex_elems[0].src_offset = 0;
vertex_elems[0].instance_divisor = 0;
vertex_elems[0].vertex_buffer_index = 0;
vertex_elems[0].src_format = PIPE_FORMAT_R32G32_FLOAT;
vertex_elems[1].src_offset = sizeof(struct vertex2f);
vertex_elems[1].instance_divisor = 0;
vertex_elems[1].vertex_buffer_index = 0;
vertex_elems[1].src_format = PIPE_FORMAT_R32G32_FLOAT;
c->vertex_elems_state = c->pipe->create_vertex_elements_state(c->pipe, 2, vertex_elems);
/*
* Create our fragment shader's constant buffer
* Const buffer contains the color conversion matrix and bias vectors
*/
/* XXX: Create with IMMUTABLE/STATIC... although it does change every once in a long while... */
c->fs_const_buf = pipe_buffer_create
(
c->pipe->screen,
PIPE_BIND_CONSTANT_BUFFER,
sizeof(struct fragment_shader_consts)
);
vl_csc_get_matrix(VL_CSC_COLOR_STANDARD_IDENTITY, NULL, true, fsc.matrix);
vl_compositor_set_csc_matrix(c, fsc.matrix);
return true;
}
static void
cleanup_buffers(struct vl_compositor *c)
{
assert(c);
c->pipe->delete_vertex_elements_state(c->pipe, c->vertex_elems_state);
pipe_resource_reference(&c->vertex_buf.buffer, NULL);
pipe_resource_reference(&c->fs_const_buf, NULL);
}
static void
texview_map_delete(const struct keymap *map,
const void *key, void *data,
void *user)
{
struct pipe_sampler_view *sv = (struct pipe_sampler_view*)data;
assert(map);
assert(key);
assert(data);
assert(user);
pipe_sampler_view_reference(&sv, NULL);
}
bool vl_compositor_init(struct vl_compositor *compositor, struct pipe_context *pipe)
{
unsigned i;
assert(compositor);
memset(compositor, 0, sizeof(struct vl_compositor));
compositor->pipe = pipe;
compositor->texview_map = util_new_keymap(sizeof(struct pipe_surface*), -1,
texview_map_delete);
if (!compositor->texview_map)
return false;
if (!init_pipe_state(compositor)) {
util_delete_keymap(compositor->texview_map, compositor->pipe);
return false;
}
if (!init_shaders(compositor)) {
util_delete_keymap(compositor->texview_map, compositor->pipe);
cleanup_pipe_state(compositor);
return false;
}
if (!init_buffers(compositor)) {
util_delete_keymap(compositor->texview_map, compositor->pipe);
cleanup_shaders(compositor);
cleanup_pipe_state(compositor);
return false;
}
compositor->fb_state.width = 0;
compositor->fb_state.height = 0;
compositor->bg = NULL;
compositor->dirty_bg = false;
for (i = 0; i < VL_COMPOSITOR_MAX_LAYERS; ++i)
compositor->layers[i] = NULL;
compositor->dirty_layers = 0;
return true;
}
void vl_compositor_cleanup(struct vl_compositor *compositor)
{
assert(compositor);
util_delete_keymap(compositor->texview_map, compositor->pipe);
cleanup_buffers(compositor);
cleanup_shaders(compositor);
cleanup_pipe_state(compositor);
}
void vl_compositor_set_background(struct vl_compositor *compositor,
struct pipe_surface *bg, struct pipe_video_rect *bg_src_rect)
{
assert(compositor);
assert((bg && bg_src_rect) || (!bg && !bg_src_rect));
if (compositor->bg != bg ||
!u_video_rects_equal(&compositor->bg_src_rect, bg_src_rect)) {
pipe_surface_reference(&compositor->bg, bg);
/*if (!u_video_rects_equal(&compositor->bg_src_rect, bg_src_rect))*/
compositor->bg_src_rect = *bg_src_rect;
compositor->dirty_bg = true;
}
}
void vl_compositor_set_layers(struct vl_compositor *compositor,
struct pipe_surface *layers[],
struct pipe_video_rect *src_rects[],
struct pipe_video_rect *dst_rects[],
unsigned num_layers)
{
unsigned i;
assert(compositor);
assert(num_layers <= VL_COMPOSITOR_MAX_LAYERS);
for (i = 0; i < num_layers; ++i)
{
assert((layers[i] && src_rects[i] && dst_rects[i]) ||
(!layers[i] && !src_rects[i] && !dst_rects[i]));
if (compositor->layers[i] != layers[i] ||
!u_video_rects_equal(&compositor->layer_src_rects[i], src_rects[i]) ||
!u_video_rects_equal(&compositor->layer_dst_rects[i], dst_rects[i]))
{
pipe_surface_reference(&compositor->layers[i], layers[i]);
/*if (!u_video_rects_equal(&compositor->layer_src_rects[i], src_rects[i]))*/
compositor->layer_src_rects[i] = *src_rects[i];
/*if (!u_video_rects_equal(&compositor->layer_dst_rects[i], dst_rects[i]))*/
compositor->layer_dst_rects[i] = *dst_rects[i];
compositor->dirty_layers |= 1 << i;
}
if (layers[i])
compositor->dirty_layers |= 1 << i;
}
for (; i < VL_COMPOSITOR_MAX_LAYERS; ++i)
pipe_surface_reference(&compositor->layers[i], NULL);
}
static void gen_rect_verts(unsigned pos,
struct pipe_video_rect *src_rect,
struct vertex2f *src_inv_size,
struct pipe_video_rect *dst_rect,
struct vertex2f *dst_inv_size,
struct vertex4f *vb)
{
assert(pos < VL_COMPOSITOR_MAX_LAYERS + 2);
assert(src_rect);
assert(src_inv_size);
assert((dst_rect && dst_inv_size) /*|| (!dst_rect && !dst_inv_size)*/);
assert(vb);
vb[pos * 6 + 0].x = dst_rect->x * dst_inv_size->x;
vb[pos * 6 + 0].y = dst_rect->y * dst_inv_size->y;
vb[pos * 6 + 0].z = src_rect->x * src_inv_size->x;
vb[pos * 6 + 0].w = src_rect->y * src_inv_size->y;
vb[pos * 6 + 1].x = dst_rect->x * dst_inv_size->x;
vb[pos * 6 + 1].y = (dst_rect->y + dst_rect->h) * dst_inv_size->y;
vb[pos * 6 + 1].z = src_rect->x * src_inv_size->x;
vb[pos * 6 + 1].w = (src_rect->y + src_rect->h) * src_inv_size->y;
vb[pos * 6 + 2].x = (dst_rect->x + dst_rect->w) * dst_inv_size->x;
vb[pos * 6 + 2].y = dst_rect->y * dst_inv_size->y;
vb[pos * 6 + 2].z = (src_rect->x + src_rect->w) * src_inv_size->x;
vb[pos * 6 + 2].w = src_rect->y * src_inv_size->y;
vb[pos * 6 + 3].x = (dst_rect->x + dst_rect->w) * dst_inv_size->x;
vb[pos * 6 + 3].y = dst_rect->y * dst_inv_size->y;
vb[pos * 6 + 3].z = (src_rect->x + src_rect->w) * src_inv_size->x;
vb[pos * 6 + 3].w = src_rect->y * src_inv_size->y;
vb[pos * 6 + 4].x = dst_rect->x * dst_inv_size->x;
vb[pos * 6 + 4].y = (dst_rect->y + dst_rect->h) * dst_inv_size->y;
vb[pos * 6 + 4].z = src_rect->x * src_inv_size->x;
vb[pos * 6 + 4].w = (src_rect->y + src_rect->h) * src_inv_size->y;
vb[pos * 6 + 5].x = (dst_rect->x + dst_rect->w) * dst_inv_size->x;
vb[pos * 6 + 5].y = (dst_rect->y + dst_rect->h) * dst_inv_size->y;
vb[pos * 6 + 5].z = (src_rect->x + src_rect->w) * src_inv_size->x;
vb[pos * 6 + 5].w = (src_rect->y + src_rect->h) * src_inv_size->y;
}
static unsigned gen_data(struct vl_compositor *c,
struct pipe_surface *src_surface,
struct pipe_video_rect *src_rect,
struct pipe_video_rect *dst_rect,
struct pipe_surface **textures,
void **frag_shaders)
{
void *vb;
struct pipe_transfer *buf_transfer;
unsigned num_rects = 0;
unsigned i;
assert(c);
assert(src_surface);
assert(src_rect);
assert(dst_rect);
assert(textures);
vb = pipe_buffer_map(c->pipe, c->vertex_buf.buffer,
PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD,
&buf_transfer);
if (!vb)
return 0;
if (c->dirty_bg) {
struct vertex2f bg_inv_size = {1.0f / c->bg->width, 1.0f / c->bg->height};
gen_rect_verts(num_rects, &c->bg_src_rect, &bg_inv_size, NULL, NULL, vb);
textures[num_rects] = c->bg;
/* XXX: Hack */
frag_shaders[num_rects] = c->fragment_shader.rgb_2_rgb;
++num_rects;
c->dirty_bg = false;
}
{
struct vertex2f src_inv_size = { 1.0f / src_surface->width, 1.0f / src_surface->height};
gen_rect_verts(num_rects, src_rect, &src_inv_size, dst_rect, &c->fb_inv_size, vb);
textures[num_rects] = src_surface;
/* XXX: Hack, sort of */
frag_shaders[num_rects] = c->fragment_shader.ycbcr_2_rgb;
++num_rects;
}
for (i = 0; c->dirty_layers > 0; i++) {
assert(i < VL_COMPOSITOR_MAX_LAYERS);
if (c->dirty_layers & (1 << i)) {
struct vertex2f layer_inv_size = {1.0f / c->layers[i]->width, 1.0f / c->layers[i]->height};
gen_rect_verts(num_rects, &c->layer_src_rects[i], &layer_inv_size,
&c->layer_dst_rects[i], &c->fb_inv_size, vb);
textures[num_rects] = c->layers[i];
/* XXX: Hack */
frag_shaders[num_rects] = c->fragment_shader.rgb_2_rgb;
++num_rects;
c->dirty_layers &= ~(1 << i);
}
}
pipe_buffer_unmap(c->pipe, c->vertex_buf.buffer, buf_transfer);
return num_rects;
}
static void draw_layers(struct vl_compositor *c,
struct pipe_surface *src_surface,
struct pipe_video_rect *src_rect,
struct pipe_video_rect *dst_rect)
{
unsigned num_rects;
struct pipe_surface *src_surfaces[VL_COMPOSITOR_MAX_LAYERS + 2];
void *frag_shaders[VL_COMPOSITOR_MAX_LAYERS + 2];
unsigned i;
assert(c);
assert(src_surface);
assert(src_rect);
assert(dst_rect);
num_rects = gen_data(c, src_surface, src_rect, dst_rect, src_surfaces, frag_shaders);
for (i = 0; i < num_rects; ++i) {
boolean delete_view = FALSE;
struct pipe_sampler_view *surface_view = (struct pipe_sampler_view*)util_keymap_lookup(c->texview_map,
&src_surfaces[i]);
if (!surface_view) {
struct pipe_sampler_view templat;
u_sampler_view_default_template(&templat, src_surfaces[i]->texture,
src_surfaces[i]->texture->format);
surface_view = c->pipe->create_sampler_view(c->pipe, src_surfaces[i]->texture,
&templat);
if (!surface_view)
return;
delete_view = !util_keymap_insert(c->texview_map, &src_surfaces[i],
surface_view, c->pipe);
}
c->pipe->bind_fs_state(c->pipe, frag_shaders[i]);
c->pipe->set_fragment_sampler_views(c->pipe, 1, &surface_view);
c->pipe->draw_arrays(c->pipe, PIPE_PRIM_TRIANGLES, i * 6, 6);
if (delete_view) {
pipe_sampler_view_reference(&surface_view, NULL);
}
}
}
void vl_compositor_render(struct vl_compositor *compositor,
struct pipe_surface *src_surface,
enum pipe_mpeg12_picture_type picture_type,
/*unsigned num_past_surfaces,
struct pipe_surface *past_surfaces,
unsigned num_future_surfaces,
struct pipe_surface *future_surfaces,*/
struct pipe_video_rect *src_area,
struct pipe_surface *dst_surface,
struct pipe_video_rect *dst_area,
struct pipe_fence_handle **fence)
{
assert(compositor);
assert(src_surface);
assert(src_area);
assert(dst_surface);
assert(dst_area);
assert(picture_type == PIPE_MPEG12_PICTURE_TYPE_FRAME);
if (compositor->fb_state.width != dst_surface->width) {
compositor->fb_inv_size.x = 1.0f / dst_surface->width;
compositor->fb_state.width = dst_surface->width;
}
if (compositor->fb_state.height != dst_surface->height) {
compositor->fb_inv_size.y = 1.0f / dst_surface->height;
compositor->fb_state.height = dst_surface->height;
}
compositor->fb_state.cbufs[0] = dst_surface;
compositor->viewport.scale[0] = compositor->fb_state.width;
compositor->viewport.scale[1] = compositor->fb_state.height;
compositor->viewport.scale[2] = 1;
compositor->viewport.scale[3] = 1;
compositor->viewport.translate[0] = 0;
compositor->viewport.translate[1] = 0;
compositor->viewport.translate[2] = 0;
compositor->viewport.translate[3] = 0;
compositor->pipe->set_framebuffer_state(compositor->pipe, &compositor->fb_state);
compositor->pipe->set_viewport_state(compositor->pipe, &compositor->viewport);
compositor->pipe->bind_fragment_sampler_states(compositor->pipe, 1, &compositor->sampler);
compositor->pipe->bind_vs_state(compositor->pipe, compositor->vertex_shader);
compositor->pipe->set_vertex_buffers(compositor->pipe, 1, &compositor->vertex_buf);
compositor->pipe->bind_vertex_elements_state(compositor->pipe, compositor->vertex_elems_state);
compositor->pipe->set_constant_buffer(compositor->pipe, PIPE_SHADER_FRAGMENT, 0, compositor->fs_const_buf);
draw_layers(compositor, src_surface, src_area, dst_area);
assert(!compositor->dirty_bg && !compositor->dirty_layers);
compositor->pipe->flush(compositor->pipe, PIPE_FLUSH_RENDER_CACHE, fence);
}
void vl_compositor_set_csc_matrix(struct vl_compositor *compositor, const float *mat)
{
struct pipe_transfer *buf_transfer;
assert(compositor);
memcpy
(
pipe_buffer_map(compositor->pipe, compositor->fs_const_buf,
PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD,
&buf_transfer),
mat,
sizeof(struct fragment_shader_consts)
);
pipe_buffer_unmap(compositor->pipe, compositor->fs_const_buf,
buf_transfer);
}
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