static inline void output_frame(uint64_t *cur_time, uint64_t interval)
{
struct obs_core_video *video = &obs->video;
int cur_texture = video->cur_texture;
int prev_texture = cur_texture == 0 ? NUM_TEXTURES-1 : cur_texture-1;
struct video_data frame;
bool frame_ready;
memset(&frame, 0, sizeof(struct video_data));
gs_enter_context(video->graphics);
render_video(video, cur_texture, prev_texture);
frame_ready = download_frame(video, prev_texture, &frame);
gs_flush();
gs_leave_context();
if (frame_ready) {
struct obs_vframe_info vframe_info;
circlebuf_pop_front(&video->vframe_info_buffer, &vframe_info,
sizeof(vframe_info));
frame.timestamp = vframe_info.timestamp;
output_video_data(video, &frame, vframe_info.count);
}
if (++video->cur_texture == NUM_TEXTURES)
video->cur_texture = 0;
video_sleep(video, cur_time, interval);
}
static inline void render_video(struct obs_core_video *video,
bool raw_active, const bool gpu_active,
int cur_texture, int prev_texture)
{
gs_begin_scene();
gs_enable_depth_test(false);
gs_set_cull_mode(GS_NEITHER);
render_main_texture(video, cur_texture);
if (raw_active || gpu_active) {
render_output_texture(video, cur_texture, prev_texture);
#ifdef _WIN32
if (gpu_active) {
gs_flush();
}
#endif
}
if (raw_active || gpu_active) {
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);
}
#ifdef _WIN32
if (gpu_active) {
gs_flush();
output_gpu_encoders(video, raw_active, prev_texture);
}
#endif
if (raw_active)
stage_output_texture(video, cur_texture, prev_texture);
}
gs_set_render_target(NULL, NULL);
gs_enable_blending(true);
gs_end_scene();
}
static void gs_point(struct draw_geometry_shader *shader,
int idx)
{
unsigned indices[1];
indices[0] = idx;
draw_fetch_gs_input(shader, indices, 1, 0);
++shader->in_prim_idx;
gs_flush(shader, 1);
}
static void gs_line(struct draw_geometry_shader *shader,
int i0, int i1)
{
unsigned indices[2];
indices[0] = i0;
indices[1] = i1;
draw_fetch_gs_input(shader, indices, 2, 0);
++shader->in_prim_idx;
gs_flush(shader, 1);
}
static void gs_tri(struct draw_geometry_shader *shader,
int i0, int i1, int i2)
{
unsigned indices[3];
indices[0] = i0;
indices[1] = i1;
indices[2] = i2;
draw_fetch_gs_input(shader, indices, 3, 0);
++shader->in_prim_idx;
gs_flush(shader, 1);
}
static void gs_point(struct draw_geometry_shader *shader,
int idx)
{
unsigned indices[1];
indices[0] = idx;
shader->fetch_inputs(shader, indices, 1,
shader->fetched_prim_count);
++shader->in_prim_idx;
++shader->fetched_prim_count;
if (draw_gs_should_flush(shader))
gs_flush(shader);
}
static void gs_line_adj(struct draw_geometry_shader *shader,
int i0, int i1, int i2, int i3)
{
unsigned indices[4];
indices[0] = i0;
indices[1] = i1;
indices[2] = i2;
indices[3] = i3;
draw_fetch_gs_input(shader, indices, 4, 0);
++shader->in_prim_idx;
gs_flush(shader, 1);
}
static void gs_line(struct draw_geometry_shader *shader,
int i0, int i1)
{
unsigned indices[2];
indices[0] = i0;
indices[1] = i1;
shader->fetch_inputs(shader, indices, 2,
shader->fetched_prim_count);
++shader->in_prim_idx;
++shader->fetched_prim_count;
if (draw_gs_should_flush(shader))
gs_flush(shader);
}
static inline void output_frame(bool raw_active, const bool gpu_active)
{
struct obs_core_video *video = &obs->video;
int cur_texture = video->cur_texture;
int prev_texture = cur_texture == 0 ? NUM_TEXTURES-1 : cur_texture-1;
struct video_data frame;
bool active = raw_active || gpu_active;
bool frame_ready;
memset(&frame, 0, sizeof(struct video_data));
profile_start(output_frame_gs_context_name);
gs_enter_context(video->graphics);
profile_start(output_frame_render_video_name);
render_video(video, raw_active, gpu_active, cur_texture, prev_texture);
profile_end(output_frame_render_video_name);
if (raw_active) {
profile_start(output_frame_download_frame_name);
frame_ready = download_frame(video, prev_texture, &frame);
profile_end(output_frame_download_frame_name);
}
profile_start(output_frame_gs_flush_name);
gs_flush();
profile_end(output_frame_gs_flush_name);
gs_leave_context();
profile_end(output_frame_gs_context_name);
if (raw_active && frame_ready) {
struct obs_vframe_info vframe_info;
circlebuf_pop_front(&video->vframe_info_buffer, &vframe_info,
sizeof(vframe_info));
frame.timestamp = vframe_info.timestamp;
profile_start(output_frame_output_video_data_name);
output_video_data(video, &frame, vframe_info.count);
profile_end(output_frame_output_video_data_name);
}
if (++video->cur_texture == NUM_TEXTURES)
video->cur_texture = 0;
}
static void gs_line_adj(struct draw_geometry_shader *shader,
int i0, int i1, int i2, int i3)
{
unsigned indices[4];
indices[0] = i0;
indices[1] = i1;
indices[2] = i2;
indices[3] = i3;
shader->fetch_inputs(shader, indices, 4,
shader->fetched_prim_count);
++shader->in_prim_idx;
++shader->fetched_prim_count;
if (draw_gs_should_flush(shader))
gs_flush(shader);
}
static void gs_tri_adj(struct draw_geometry_shader *shader,
int i0, int i1, int i2,
int i3, int i4, int i5)
{
unsigned indices[6];
indices[0] = i0;
indices[1] = i1;
indices[2] = i2;
indices[3] = i3;
indices[4] = i4;
indices[5] = i5;
draw_fetch_gs_input(shader, indices, 6, 0);
++shader->in_prim_idx;
gs_flush(shader, 1);
}
/**
* Execute geometry shader.
*/
int draw_geometry_shader_run(struct draw_geometry_shader *shader,
const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
const unsigned constants_size[PIPE_MAX_CONSTANT_BUFFERS],
const struct draw_vertex_info *input_verts,
const struct draw_prim_info *input_prim,
const struct tgsi_shader_info *input_info,
struct draw_vertex_info *output_verts,
struct draw_prim_info *output_prims )
{
const float (*input)[4] = (const float (*)[4])input_verts->verts->data;
unsigned input_stride = input_verts->vertex_size;
unsigned num_outputs = draw_total_gs_outputs(shader->draw);
unsigned vertex_size = sizeof(struct vertex_header) + num_outputs * 4 * sizeof(float);
unsigned num_input_verts = input_prim->linear ?
input_verts->count :
input_prim->count;
unsigned num_in_primitives =
align(
MAX2(u_decomposed_prims_for_vertices(input_prim->prim,
num_input_verts),
u_decomposed_prims_for_vertices(shader->input_primitive,
num_input_verts)),
shader->vector_length);
unsigned max_out_prims =
u_decomposed_prims_for_vertices(shader->output_primitive,
shader->max_output_vertices)
* num_in_primitives;
//Assume at least one primitive
max_out_prims = MAX2(max_out_prims, 1);
output_verts->vertex_size = vertex_size;
output_verts->stride = output_verts->vertex_size;
/* we allocate exactly one extra vertex per primitive to allow the GS to emit
* overflown vertices into some area where they won't harm anyone */
output_verts->verts =
(struct vertex_header *)MALLOC(output_verts->vertex_size *
max_out_prims *
shader->primitive_boundary);
#if 0
debug_printf("%s count = %d (in prims # = %d)\n",
__FUNCTION__, num_input_verts, num_in_primitives);
debug_printf("\tlinear = %d, prim_info->count = %d\n",
input_prim->linear, input_prim->count);
debug_printf("\tprim pipe = %s, shader in = %s, shader out = %s, max out = %d\n",
u_prim_name(input_prim->prim),
u_prim_name(shader->input_primitive),
u_prim_name(shader->output_primitive),
shader->max_output_vertices);
#endif
shader->emitted_vertices = 0;
shader->emitted_primitives = 0;
shader->vertex_size = vertex_size;
shader->tmp_output = (float (*)[4])output_verts->verts->data;
shader->fetched_prim_count = 0;
shader->input_vertex_stride = input_stride;
shader->input = input;
shader->input_info = input_info;
FREE(shader->primitive_lengths);
shader->primitive_lengths = MALLOC(max_out_prims * sizeof(unsigned));
#ifdef HAVE_LLVM
if (draw_get_option_use_llvm()) {
shader->gs_output = output_verts->verts;
if (max_out_prims > shader->max_out_prims) {
unsigned i;
if (shader->llvm_prim_lengths) {
for (i = 0; i < shader->max_out_prims; ++i) {
align_free(shader->llvm_prim_lengths[i]);
}
FREE(shader->llvm_prim_lengths);
}
shader->llvm_prim_lengths = MALLOC(max_out_prims * sizeof(unsigned*));
for (i = 0; i < max_out_prims; ++i) {
int vector_size = shader->vector_length * sizeof(unsigned);
shader->llvm_prim_lengths[i] =
align_malloc(vector_size, vector_size);
}
shader->max_out_prims = max_out_prims;
}
shader->jit_context->prim_lengths = shader->llvm_prim_lengths;
shader->jit_context->emitted_vertices = shader->llvm_emitted_vertices;
shader->jit_context->emitted_prims = shader->llvm_emitted_primitives;
}
#endif
shader->prepare(shader, constants, constants_size);
if (input_prim->linear)
gs_run(shader, input_prim, input_verts,
output_prims, output_verts);
else
gs_run_elts(shader, input_prim, input_verts,
output_prims, output_verts);
/* Flush the remaining primitives. Will happen if
* num_input_primitives % 4 != 0
*/
if (shader->fetched_prim_count > 0) {
gs_flush(shader);
}
debug_assert(shader->fetched_prim_count == 0);
/* Update prim_info:
*/
output_prims->linear = TRUE;
output_prims->elts = NULL;
output_prims->start = 0;
output_prims->count = shader->emitted_vertices;
output_prims->prim = shader->output_primitive;
output_prims->flags = 0x0;
output_prims->primitive_lengths = shader->primitive_lengths;
output_prims->primitive_count = shader->emitted_primitives;
output_verts->count = shader->emitted_vertices;
if (shader->draw->collect_statistics) {
unsigned i;
for (i = 0; i < shader->emitted_primitives; ++i) {
shader->draw->statistics.gs_primitives +=
u_decomposed_prims_for_vertices(shader->output_primitive,
shader->primitive_lengths[i]);
}
}
#if 0
debug_printf("GS finished, prims = %d, verts = %d\n",
output_prims->primitive_count,
output_verts->count);
#endif
return shader->emitted_vertices;
}
