static bool
init_mc_source_widthout_idct(struct vl_mpeg12_decoder *dec, const struct format_config* format_config)
{
enum pipe_format formats[3];
struct pipe_video_buffer templat;
formats[0] = formats[1] = formats[2] = format_config->mc_source_format;
memset(&templat, 0, sizeof(templat));
templat.width = dec->base.width;
templat.height = dec->base.height;
templat.chroma_format = dec->base.chroma_format;
dec->mc_source = vl_video_buffer_create_ex
(
dec->base.context, &templat,
formats, 1, PIPE_USAGE_STATIC
);
return dec->mc_source != NULL;
}
struct pipe_video_buffer *
vl_video_buffer_create(struct pipe_context *pipe,
const struct pipe_video_buffer *tmpl)
{
const enum pipe_format *resource_formats;
struct pipe_video_buffer templat, *result;
bool pot_buffers;
assert(pipe);
assert(tmpl->width > 0 && tmpl->height > 0);
pot_buffers = !pipe->screen->get_video_param
(
pipe->screen,
PIPE_VIDEO_PROFILE_UNKNOWN,
PIPE_VIDEO_CAP_NPOT_TEXTURES
);
resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
if (!resource_formats)
return NULL;
templat = *tmpl;
templat.width = pot_buffers ? util_next_power_of_two(tmpl->width)
: align(tmpl->width, VL_MACROBLOCK_WIDTH);
templat.height = pot_buffers ? util_next_power_of_two(tmpl->height)
: align(tmpl->height, VL_MACROBLOCK_HEIGHT);
if (tmpl->interlaced)
templat.height /= 2;
result = vl_video_buffer_create_ex
(
pipe, &templat, resource_formats,
1, tmpl->interlaced ? 2 : 1, PIPE_USAGE_STATIC
);
if (result && tmpl->interlaced)
result->height *= 2;
return result;
}
struct pipe_video_buffer *
vl_video_buffer_create(struct pipe_context *pipe,
enum pipe_format buffer_format,
enum pipe_video_chroma_format chroma_format,
unsigned width, unsigned height)
{
const enum pipe_format *resource_formats;
struct pipe_video_buffer *result;
unsigned buffer_width, buffer_height;
bool pot_buffers;
assert(pipe);
assert(width > 0 && height > 0);
pot_buffers = !pipe->screen->get_video_param
(
pipe->screen,
PIPE_VIDEO_PROFILE_UNKNOWN,
PIPE_VIDEO_CAP_NPOT_TEXTURES
);
resource_formats = vl_video_buffer_formats(pipe->screen, buffer_format);
if (!resource_formats)
return NULL;
buffer_width = pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH);
buffer_height = pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT);
result = vl_video_buffer_create_ex
(
pipe, buffer_width, buffer_height, 1,
chroma_format, resource_formats, PIPE_USAGE_STATIC
);
if (result)
result->buffer_format = buffer_format;
return result;
}
static bool
init_idct(struct vl_mpeg12_decoder *dec, const struct format_config* format_config)
{
unsigned nr_of_idct_render_targets, max_inst;
enum pipe_format formats[3];
struct pipe_video_buffer templat;
struct pipe_sampler_view *matrix = NULL;
nr_of_idct_render_targets = dec->base.context->screen->get_param
(
dec->base.context->screen, PIPE_CAP_MAX_RENDER_TARGETS
);
max_inst = dec->base.context->screen->get_shader_param
(
dec->base.context->screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INSTRUCTIONS
);
// Just assume we need 32 inst per render target, not 100% true, but should work in most cases
if (nr_of_idct_render_targets >= 4 && max_inst >= 32*4)
// more than 4 render targets usually doesn't makes any seens
nr_of_idct_render_targets = 4;
else
nr_of_idct_render_targets = 1;
formats[0] = formats[1] = formats[2] = format_config->idct_source_format;
memset(&templat, 0, sizeof(templat));
templat.width = dec->base.width / 4;
templat.height = dec->base.height;
templat.chroma_format = dec->base.chroma_format;
dec->idct_source = vl_video_buffer_create_ex
(
dec->base.context, &templat,
formats, 1, PIPE_USAGE_STATIC
);
if (!dec->idct_source)
goto error_idct_source;
formats[0] = formats[1] = formats[2] = format_config->mc_source_format;
memset(&templat, 0, sizeof(templat));
templat.width = dec->base.width / nr_of_idct_render_targets;
templat.height = dec->base.height / 4;
templat.chroma_format = dec->base.chroma_format;
dec->mc_source = vl_video_buffer_create_ex
(
dec->base.context, &templat,
formats, nr_of_idct_render_targets, PIPE_USAGE_STATIC
);
if (!dec->mc_source)
goto error_mc_source;
if (!(matrix = vl_idct_upload_matrix(dec->base.context, format_config->idct_scale)))
goto error_matrix;
if (!vl_idct_init(&dec->idct_y, dec->base.context, dec->base.width, dec->base.height,
nr_of_idct_render_targets, matrix, matrix))
goto error_y;
if(!vl_idct_init(&dec->idct_c, dec->base.context, dec->chroma_width, dec->chroma_height,
nr_of_idct_render_targets, matrix, matrix))
goto error_c;
pipe_sampler_view_reference(&matrix, NULL);
return true;
error_c:
vl_idct_cleanup(&dec->idct_y);
error_y:
pipe_sampler_view_reference(&matrix, NULL);
error_matrix:
dec->mc_source->destroy(dec->mc_source);
error_mc_source:
dec->idct_source->destroy(dec->idct_source);
error_idct_source:
return false;
}
