bool gs_texrender_begin(gs_texrender_t texrender, uint32_t cx, uint32_t cy) { if (!texrender || texrender->rendered) return false; if (cx == 0) cx = gs_get_width(); if (cy == 0) cy = gs_get_height(); assert(cx && cy); if (!cx || !cy) return false; if (texrender->cx != cx || texrender->cy != cy) if (!texrender_resetbuffer(texrender, cx, cy)) return false; gs_viewport_push(); gs_projection_push(); gs_matrix_push(); gs_matrix_identity(); texrender->prev_target = gs_get_render_target(); texrender->prev_zs = gs_get_zstencil_target(); gs_set_render_target(texrender->target, texrender->zs); gs_set_viewport(0, 0, texrender->cx, texrender->cy); return true; }
static inline void render_display_begin(struct obs_display *display) { struct vec4 clear_color; gs_load_swapchain(display ? display->swap : NULL); if (display->size_changed) { gs_resize(display->cx, display->cy); display->size_changed = false; } gs_begin_scene(); vec4_from_rgba(&clear_color, display->background_color); clear_color.w = 1.0f; gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH | GS_CLEAR_STENCIL, &clear_color, 1.0f, 0); gs_enable_depth_test(false); /* gs_enable_blending(false); */ gs_set_cull_mode(GS_NEITHER); gs_ortho(0.0f, (float)display->cx, 0.0f, (float)display->cy, -100.0f, 100.0f); gs_set_viewport(0, 0, display->cx, display->cy); }
static inline void set_render_size(uint32_t width, uint32_t height) { gs_enable_depth_test(false); gs_set_cull_mode(GS_NEITHER); gs_ortho(0.0f, (float)width, 0.0f, (float)height, -100.0f, 100.0f); gs_set_viewport(0, 0, width, height); }
static inline void startRegion(int vX, int vY, int vCX, int vCY, float oL, float oR, float oT, float oB) { gs_projection_push(); gs_viewport_push(); gs_set_viewport(vX, vY, vCX, vCY); gs_ortho(oL, oR, oT, oB, -100.0f, 100.0f); }
void OBSProjector::OBSRender(void *data, uint32_t cx, uint32_t cy) { OBSProjector *window = reinterpret_cast<OBSProjector*>(data); uint32_t targetCX; uint32_t targetCY; int x, y; int newCX, newCY; float scale; if (window->source) { targetCX = std::max(obs_source_get_width(window->source), 1u); targetCY = std::max(obs_source_get_height(window->source), 1u); } else { struct obs_video_info ovi; obs_get_video_info(&ovi); targetCX = ovi.base_width; targetCY = ovi.base_height; } GetScaleAndCenterPos(targetCX, targetCY, cx, cy, x, y, scale); newCX = int(scale * float(targetCX)); newCY = int(scale * float(targetCY)); gs_viewport_push(); gs_projection_push(); gs_ortho(0.0f, float(targetCX), 0.0f, float(targetCY), -100.0f, 100.0f); gs_set_viewport(x, y, newCX, newCY); if (window->source) obs_source_video_render(window->source); else obs_render_main_view(); gs_projection_pop(); gs_viewport_pop(); }