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renderer_opengl: Support framebuffer flip vertical.

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This commit is contained in:
bunnei 2018-02-11 19:04:27 -05:00
parent 6fce1414c3
commit deadcb39c2
3 changed files with 13 additions and 5 deletions
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1
src/video_core/renderer_base.h
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@ -43,6 +43,7 @@ public:
u32 height;
u32 stride;
PixelFormat pixel_format;
bool flip_vertical;
};
virtual ~RendererBase() {}

14
src/video_core/renderer_opengl/renderer_opengl.cpp
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@ -262,6 +262,8 @@ void RendererOpenGL::LoadFBToScreenInfo(const FramebufferInfo& framebuffer_info,
// only allows rows to have a memory alignement of 4.
ASSERT(framebuffer_info.stride % 4 == 0);
framebuffer_flip_vertical = framebuffer_info.flip_vertical;
// Reset the screen info's display texture to its own permanent texture
screen_info.display_texture = screen_info.texture.resource.handle;
screen_info.display_texcoords = MathUtil::Rectangle<float>(0.f, 0.f, 1.f, 1.f);
@ -401,13 +403,15 @@ void RendererOpenGL::ConfigureFramebufferTexture(TextureInfo& texture,
void RendererOpenGL::DrawSingleScreen(const ScreenInfo& screen_info, float x, float y, float w,
float h) {
auto& texcoords = screen_info.display_texcoords;
const auto& texcoords = screen_info.display_texcoords;
const auto& left = framebuffer_flip_vertical ? texcoords.right : texcoords.left;
const auto& right = framebuffer_flip_vertical ? texcoords.left : texcoords.right;
std::array<ScreenRectVertex, 4> vertices = {{
ScreenRectVertex(x, y, texcoords.top, texcoords.right),
ScreenRectVertex(x + w, y, texcoords.bottom, texcoords.right),
ScreenRectVertex(x, y + h, texcoords.top, texcoords.left),
ScreenRectVertex(x + w, y + h, texcoords.bottom, texcoords.left),
ScreenRectVertex(x, y, texcoords.top, right),
ScreenRectVertex(x + w, y, texcoords.bottom, right),
ScreenRectVertex(x, y + h, texcoords.top, left),
ScreenRectVertex(x + w, y + h, texcoords.bottom, left),
}};
state.texture_units[0].texture_2d = screen_info.display_texture;

3
src/video_core/renderer_opengl/renderer_opengl.h
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@ -86,4 +86,7 @@ private:
// Shader attribute input indices
GLuint attrib_position;
GLuint attrib_tex_coord;
/// Flips the framebuffer vertically when true
bool framebuffer_flip_vertical;
};