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libobs: Use NV12 textures when available

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jp9000
2018-10-05 20:18:15 -07:00
parent 82848d513e
commit 28d0cc8b97
5 changed files with 170 additions and 13 deletions
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81
libobs/obs-video.c
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@@ -310,6 +310,55 @@ end:
profile_end(render_convert_texture_name);
}
static void render_nv12(struct obs_core_video *video, gs_texture_t *target,
int cur_texture, int prev_texture, const char *tech_name,
uint32_t width, uint32_t height)
{
gs_texture_t *texture = video->output_textures[prev_texture];
gs_effect_t *effect = video->conversion_effect;
gs_eparam_t *image = gs_effect_get_param_by_name(effect, "image");
gs_technique_t *tech = gs_effect_get_technique(effect, tech_name);
size_t passes, i;
gs_effect_set_texture(image, texture);
gs_set_render_target(target, NULL);
set_render_size(width, height);
gs_enable_blending(false);
passes = gs_technique_begin(tech);
for (i = 0; i < passes; i++) {
gs_technique_begin_pass(tech, i);
gs_draw_sprite(texture, 0, width, height);
gs_technique_end_pass(tech);
}
gs_technique_end(tech);
gs_enable_blending(true);
}
static const char *render_convert_nv12_name = "render_convert_texture_nv12";
static void render_convert_texture_nv12(struct obs_core_video *video,
int cur_texture, int prev_texture)
{
profile_start(render_convert_nv12_name);
if (!video->textures_output[prev_texture])
goto end;
render_nv12(video, video->convert_textures[cur_texture],
cur_texture, prev_texture, "NV12_Y",
video->output_width, video->output_height);
render_nv12(video, video->convert_uv_textures[cur_texture],
cur_texture, prev_texture, "NV12_UV",
video->output_width / 2, video->output_height / 2);
video->textures_converted[cur_texture] = true;
end:
profile_end(render_convert_nv12_name);
}
static const char *stage_output_texture_name = "stage_output_texture";
static inline void stage_output_texture(struct obs_core_video *video,
int cur_texture, int prev_texture)
@@ -353,8 +402,15 @@ static inline void render_video(struct obs_core_video *video, bool raw_active,
if (raw_active) {
render_output_texture(video, cur_texture, prev_texture);
if (video->gpu_conversion)
render_convert_texture(video, cur_texture, prev_texture);
if (video->gpu_conversion) {
if (video->using_nv12_tex)
render_convert_texture_nv12(video,
cur_texture, prev_texture);
else
render_convert_texture(video,
cur_texture, prev_texture);
}
stage_output_texture(video, cur_texture, prev_texture);
}
@@ -455,6 +511,27 @@ static void set_gpu_converted_data(struct obs_core_video *video,
video_frame_copy(output, &frame, info->format, info->height);
} else if (video->using_nv12_tex) {
int width = (int)info->width;
int height = (int)info->height;
int width_d2 = width / 2;
int height_d2 = height / 2;
int height_d4 = height_d2 / 2;
uint8_t *out_y = output->data[0];
uint8_t *out_uv = output->data[1];
uint8_t *in = input->data[0];
for (size_t y = 0; y < height; y++) {
memcpy(out_y, in, width);
out_y += output->linesize[0];
in += input->linesize[0];
}
for (size_t y = 0; y < height_d2; y++) {
memcpy(out_uv, in, width);
out_uv += output->linesize[0];
in += input->linesize[0];
}
} else {
fix_gpu_converted_alignment(video, output, input);
}