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yuzu, video_core: Screenshot functionality

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Allows capturing screenshot at the current internal resolution (native for software renderer), but a setting is available to capture it in other resolutions. The screenshot is saved to a single PNG in the current layout.
This commit is contained in:
zhupengfei 2018-08-31 14:16:16 +08:00 • committed by fearlessTobi
parent f761e3ef86
commit a2be49305d
15 changed files with 229 additions and 44 deletions
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41
src/video_core/renderer_opengl/renderer_opengl.cpp
View file

@ -138,7 +138,12 @@ void RendererOpenGL::SwapBuffers(
// Load the framebuffer from memory, draw it to the screen, and swap buffers
LoadFBToScreenInfo(*framebuffer);
DrawScreen();
if (renderer_settings.screenshot_requested)
CaptureScreenshot();
DrawScreen(render_window.GetFramebufferLayout());
render_window.SwapBuffers();
}
@ -383,14 +388,13 @@ void RendererOpenGL::DrawScreenTriangles(const ScreenInfo& screen_info, float x,
/**
* Draws the emulated screens to the emulator window.
*/
void RendererOpenGL::DrawScreen() {
void RendererOpenGL::DrawScreen(const Layout::FramebufferLayout& layout) {
if (renderer_settings.set_background_color) {
// Update background color before drawing
glClearColor(Settings::values.bg_red, Settings::values.bg_green, Settings::values.bg_blue,
0.0f);
}
const auto& layout = render_window.GetFramebufferLayout();
const auto& screen = layout.screen;
glViewport(0, 0, layout.width, layout.height);
@ -414,6 +418,37 @@ void RendererOpenGL::DrawScreen() {
/// Updates the framerate
void RendererOpenGL::UpdateFramerate() {}
void RendererOpenGL::CaptureScreenshot() {
// Draw the current frame to the screenshot framebuffer
screenshot_framebuffer.Create();
GLuint old_read_fb = state.draw.read_framebuffer;
GLuint old_draw_fb = state.draw.draw_framebuffer;
state.draw.read_framebuffer = state.draw.draw_framebuffer = screenshot_framebuffer.handle;
state.Apply();
Layout::FramebufferLayout layout{renderer_settings.screenshot_framebuffer_layout};
GLuint renderbuffer;
glGenRenderbuffers(1, &renderbuffer);
glBindRenderbuffer(GL_RENDERBUFFER, renderbuffer);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGB8, layout.width, layout.height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, renderbuffer);
DrawScreen(layout);
glReadPixels(0, 0, layout.width, layout.height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
renderer_settings.screenshot_bits);
screenshot_framebuffer.Release();
state.draw.read_framebuffer = old_read_fb;
state.draw.draw_framebuffer = old_draw_fb;
state.Apply();
glDeleteRenderbuffers(1, &renderbuffer);
renderer_settings.screenshot_complete_callback();
renderer_settings.screenshot_requested = false;
}
static const char* GetSource(GLenum source) {
#define RET(s) \
case GL_DEBUG_SOURCE_##s: \

9
src/video_core/renderer_opengl/renderer_opengl.h
View file

@ -16,6 +16,10 @@ namespace Core::Frontend {
class EmuWindow;
}
namespace Layout {
class FramebufferLayout;
}
namespace OpenGL {
/// Structure used for storing information about the textures for the Switch screen
@ -66,10 +70,12 @@ private:
void ConfigureFramebufferTexture(TextureInfo& texture,
const Tegra::FramebufferConfig& framebuffer);
void DrawScreen();
void DrawScreen(const Layout::FramebufferLayout& layout);
void DrawScreenTriangles(const ScreenInfo& screen_info, float x, float y, float w, float h);
void UpdateFramerate();
void CaptureScreenshot();
// Loads framebuffer from emulated memory into the display information structure
void LoadFBToScreenInfo(const Tegra::FramebufferConfig& framebuffer);
// Fills active OpenGL texture with the given RGBA color.
@ -82,6 +88,7 @@ private:
OGLVertexArray vertex_array;
OGLBuffer vertex_buffer;
OGLProgram shader;
OGLFramebuffer screenshot_framebuffer;
/// Display information for Switch screen
ScreenInfo screen_info;