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/**********************************************************
* Copyright 2009-2011 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, sublicense, 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 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
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* 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.
*
*********************************************************
* Authors:
* Zack Rusin <zackr-at-vmware-dot-com>
* Thomas Hellstrom <thellstrom-at-vmware-dot-com>
*/
#include "xa_context.h"
#include "xa_priv.h"
#include "util/u_inlines.h"
#include "util/u_sampler.h"
#include "util/u_surface.h"
#include "cso_cache/cso_context.h"
static void
xa_yuv_bind_blend_state(struct xa_context *r)
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(struct pipe_blend_state));
blend.rt[0].blend_enable = 0;
blend.rt[0].colormask = PIPE_MASK_RGBA;
/* porter&duff src */
blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
cso_set_blend(r->cso, &blend);
}
static void
xa_yuv_bind_shaders(struct xa_context *r)
{
unsigned vs_traits = 0, fs_traits = 0;
struct xa_shader shader;
vs_traits |= VS_YUV;
fs_traits |= FS_YUV;
shader = xa_shaders_get(r->shaders, vs_traits, fs_traits);
cso_set_vertex_shader_handle(r->cso, shader.vs);
cso_set_fragment_shader_handle(r->cso, shader.fs);
}
static void
xa_yuv_bind_samplers(struct xa_context *r, struct xa_surface *yuv[])
{
struct pipe_sampler_state *samplers[3];
struct pipe_sampler_state sampler;
struct pipe_sampler_view view_templ;
unsigned int i;
memset(&sampler, 0, sizeof(struct pipe_sampler_state));
sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
sampler.normalized_coords = 1;
for (i = 0; i < 3; ++i) {
samplers[i] = &sampler;
u_sampler_view_default_template(&view_templ, yuv[i]->tex,
yuv[i]->tex->format);
r->bound_sampler_views[i] =
r->pipe->create_sampler_view(r->pipe, yuv[i]->tex, &view_templ);
}
r->num_bound_samplers = 3;
cso_set_samplers(r->cso, PIPE_SHADER_FRAGMENT, 3, (const struct pipe_sampler_state **)samplers);
cso_set_sampler_views(r->cso, PIPE_SHADER_FRAGMENT, 3, r->bound_sampler_views);
}
static void
xa_yuv_fs_constants(struct xa_context *r, const float conversion_matrix[])
{
const int param_bytes = 16 * sizeof(float);
renderer_set_constants(r, PIPE_SHADER_FRAGMENT,
conversion_matrix, param_bytes);
}
XA_EXPORT int
xa_yuv_planar_blit(struct xa_context *r,
int src_x,
int src_y,
int src_w,
int src_h,
int dst_x,
int dst_y,
int dst_w,
int dst_h,
struct xa_box *box,
unsigned int num_boxes,
const float conversion_matrix[],
struct xa_surface *dst, struct xa_surface *yuv[])
{
float scale_x;
float scale_y;
int ret;
if (dst_w == 0 || dst_h == 0)
return XA_ERR_NONE;
ret = xa_ctx_srf_create(r, dst);
if (ret != XA_ERR_NONE)
return -XA_ERR_NORES;
renderer_bind_destination(r, r->srf);
xa_yuv_bind_blend_state(r);
xa_yuv_bind_shaders(r);
xa_yuv_bind_samplers(r, yuv);
xa_yuv_fs_constants(r, conversion_matrix);
scale_x = (float)src_w / (float)dst_w;
scale_y = (float)src_h / (float)dst_h;
while (num_boxes--) {
int x = box->x1;
int y = box->y1;
int w = box->x2 - box->x1;
int h = box->y2 - box->y1;
xa_scissor_update(r, x, y, box->x2, box->y2);
renderer_draw_yuv(r,
(float)src_x + scale_x * (x - dst_x),
(float)src_y + scale_y * (y - dst_y),
scale_x * w, scale_y * h, x, y, w, h, yuv);
box++;
}
xa_context_flush(r);
xa_ctx_sampler_views_destroy(r);
xa_ctx_srf_destroy(r);
return XA_ERR_NONE;
}
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