renderer_gl: Clear screen to black before rendering framebuffer.

This commit is contained in:
bunnei 2018-01-15 00:20:19 -05:00
parent ebd613c2cc
commit 92801b1c34
2 changed files with 8 additions and 5 deletions

View file

@ -293,16 +293,16 @@ void RendererOpenGL::LoadFBToScreenInfo(const FramebufferInfo& framebuffer_info,
* Fills active OpenGL texture with the given RGB color. Since the color is solid, the texture can
* be 1x1 but will stretch across whatever it's rendered on.
*/
void RendererOpenGL::LoadColorToActiveGLTexture(u8 color_r, u8 color_g, u8 color_b,
void RendererOpenGL::LoadColorToActiveGLTexture(u8 color_r, u8 color_g, u8 color_b, u8 color_a,
const TextureInfo& texture) {
state.texture_units[0].texture_2d = texture.resource.handle;
state.Apply();
glActiveTexture(GL_TEXTURE0);
u8 framebuffer_data[3] = {color_r, color_g, color_b};
u8 framebuffer_data[4] = {color_a, color_b, color_g, color_r};
// Update existing texture
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, GL_RGB, GL_UNSIGNED_BYTE, framebuffer_data);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, framebuffer_data);
state.texture_units[0].texture_2d = 0;
state.Apply();
@ -364,6 +364,9 @@ void RendererOpenGL::InitOpenGLObjects() {
state.texture_units[0].texture_2d = 0;
state.Apply();
// Clear screen to black
LoadColorToActiveGLTexture(0, 0, 0, 0, screen_info.texture);
}
void RendererOpenGL::ConfigureFramebufferTexture(TextureInfo& texture,

View file

@ -60,8 +60,8 @@ private:
// Loads framebuffer from emulated memory into the display information structure
void LoadFBToScreenInfo(const FramebufferInfo& framebuffer_info, ScreenInfo& screen_info);
// Fills active OpenGL texture with the given RGB color.
void LoadColorToActiveGLTexture(u8 color_r, u8 color_g, u8 color_b, const TextureInfo& texture);
// Fills active OpenGL texture with the given RGBA color.
void LoadColorToActiveGLTexture(u8 color_r, u8 color_g, u8 color_b, u8 color_a, const TextureInfo& texture);
EmuWindow* render_window; ///< Handle to render window