void texture_setimage(texture_t tex, const void *data, uint32_t row_bytes,
bool flip)
{
void *ptr;
uint32_t row_bytes_out;
uint32_t row_copy;
int32_t height = (int32_t)texture_getheight(tex);
int32_t y;
if (!texture_map(tex, &ptr, &row_bytes_out))
return;
row_copy = (row_bytes < row_bytes_out) ? row_bytes : row_bytes_out;
if (flip) {
for (y = height-1; y >= 0; y--)
memcpy((uint8_t*)ptr + (uint32_t)y * row_bytes_out,
(uint8_t*)data + (uint32_t)y * row_bytes,
row_copy);
} else if (row_bytes == row_bytes_out) {
memcpy(ptr, data, row_copy * height);
} else {
for (y = 0; y < height; y++)
memcpy((uint8_t*)ptr + (uint32_t)y * row_bytes_out,
(uint8_t*)data + (uint32_t)y * row_bytes,
row_copy);
}
}
void texture_setimage(texture_t tex, const void *data, uint32_t linesize,
bool flip)
{
if (!thread_graphics || !tex)
return;
void *ptr;
uint32_t linesize_out;
uint32_t row_copy;
int32_t height = (int32_t)texture_getheight(tex);
int32_t y;
if (!texture_map(tex, &ptr, &linesize_out))
return;
row_copy = (linesize < linesize_out) ? linesize : linesize_out;
if (flip) {
for (y = height-1; y >= 0; y--)
memcpy((uint8_t*)ptr + (uint32_t)y * linesize_out,
(uint8_t*)data + (uint32_t)y * linesize,
row_copy);
} else if (linesize == linesize_out) {
memcpy(ptr, data, row_copy * height);
} else {
for (y = 0; y < height; y++)
memcpy((uint8_t*)ptr + (uint32_t)y * linesize_out,
(uint8_t*)data + (uint32_t)y * linesize,
row_copy);
}
texture_unmap(tex);
}
void gs_draw_sprite(texture_t tex, uint32_t flip, uint32_t width,
uint32_t height)
{
graphics_t graphics = thread_graphics;
float fcx, fcy;
struct vb_data *data;
assert(tex);
if (gs_gettexturetype(tex) != GS_TEXTURE_2D) {
blog(LOG_ERROR, "A sprite must be a 2D texture");
return;
}
fcx = width ? (float)width : (float)texture_getwidth(tex);
fcy = height ? (float)height : (float)texture_getheight(tex);
data = vertexbuffer_getdata(graphics->sprite_buffer);
if (texture_isrect(tex))
build_sprite_rect(data, tex, fcx, fcy, flip);
else
build_sprite_norm(data, fcx, fcy, flip);
vertexbuffer_flush(graphics->sprite_buffer, false);
gs_load_vertexbuffer(graphics->sprite_buffer);
gs_load_indexbuffer(NULL);
gs_draw(GS_TRISTRIP, 0, 0);
}
static void image_source_update(void *data, obs_data_t settings)
{
struct image_source *context = data;
const char *file = obs_data_getstring(settings, "file");
gs_entercontext(obs_graphics());
if (context->tex) {
texture_destroy(context->tex);
context->tex = NULL;
}
if (file) {
context->tex = gs_create_texture_from_file(file);
if (context->tex) {
context->cx = texture_getwidth(context->tex);
context->cy = texture_getheight(context->tex);
} else {
warn("failed to load texture '%s'", file);
context->cx = 0;
context->cy = 0;
}
}
gs_leavecontext();
}
static inline uint32_t get_target_height(struct gs_device *device)
{
if (!device->cur_render_target)
return device_getheight(device);
if (device->cur_render_target->type == GS_TEXTURE_2D)
return texture_getheight(device->cur_render_target);
else /* cube map */
return cubetexture_getsize(device->cur_render_target);
}
static inline void build_sprite_rect(struct vb_data *data, texture_t tex,
float fcx, float fcy, uint32_t flip)
{
float start_u, end_u;
float start_v, end_v;
float width = (float)texture_getwidth(tex);
float height = (float)texture_getheight(tex);
assign_sprite_rect(&start_u, &end_u, width, (flip & GS_FLIP_U) != 0);
assign_sprite_rect(&start_v, &end_v, height, (flip & GS_FLIP_V) != 0);
build_sprite(data, fcx, fcy, start_u, end_u, start_v, end_v, flip);
}
static bool set_texture_size(obs_source_t source, struct source_frame *frame)
{
if (source->output_texture) {
uint32_t width = texture_getwidth(source->output_texture);
uint32_t height = texture_getheight(source->output_texture);
if (width == frame->width && height == frame->height)
return true;
}
texture_destroy(source->output_texture);
source->output_texture = gs_create_texture(frame->width, frame->height,
GS_RGBA, 1, NULL, GS_DYNAMIC);
return source->output_texture != NULL;
}
static inline void render_output_texture(struct obs_core_video *video,
int cur_texture, int prev_texture)
{
texture_t texture = video->render_textures[prev_texture];
texture_t target = video->output_textures[cur_texture];
uint32_t width = texture_getwidth(target);
uint32_t height = texture_getheight(target);
/* TODO: replace with actual downscalers or unpackers */
effect_t effect = video->default_effect;
technique_t tech = effect_gettechnique(effect, "DrawMatrix");
eparam_t image = effect_getparambyname(effect, "image");
eparam_t matrix = effect_getparambyname(effect, "color_matrix");
size_t passes, i;
if (!video->textures_rendered[prev_texture])
return;
gs_setrendertarget(target, NULL);
set_render_size(width, height);
/* TODO: replace with programmable code */
const float mat_val[16] =
{
-0.100644f, -0.338572f, 0.439216f, 0.501961f,
0.182586f, 0.614231f, 0.062007f, 0.062745f,
0.439216f, -0.398942f, -0.040274f, 0.501961f,
0.000000f, 0.000000f, 0.000000f, 1.000000f
};
effect_setval(effect, matrix, mat_val, sizeof(mat_val));
effect_settexture(effect, image, texture);
passes = technique_begin(tech);
for (i = 0; i < passes; i++) {
technique_beginpass(tech, i);
gs_draw_sprite(texture, 0, width, height);
technique_endpass(tech);
}
technique_end(tech);
video->textures_output[cur_texture] = true;
}
static uint32_t random_getheight(void *data)
{
struct random_tex *rt = data;
return texture_getheight(rt->texture);
}