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Don't crash if glClipControl is not available

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This commit is contained in:
Emil Lenngren 2022-03-31 02:30:48 +02:00
parent 511397c34b
commit 5d967f8e8c
1 changed files with 8 additions and 2 deletions
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8
libultraship/libultraship/Lib/Fast3D/gfx_opengl.cpp
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@ -673,7 +673,11 @@ static void gfx_opengl_resize_framebuffer(int fb, uint32_t width, uint32_t heigh
void gfx_opengl_set_framebuffer(int fb) void gfx_opengl_set_framebuffer(int fb)
{ {
glClipControl(GL_UPPER_LEFT, GL_NEGATIVE_ONE_TO_ONE); // Set origin to upper left corner, to match N64 and DX11 if (GLEW_ARB_clip_control || GLEW_VERSION_4_5) {
// Set origin to upper left corner, to match N64 and DX11
// If this function is not supported, the texture will be upside down :(
glClipControl(GL_UPPER_LEFT, GL_NEGATIVE_ONE_TO_ONE);
}
glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb); glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb);
glDepthMask(GL_TRUE); glDepthMask(GL_TRUE);
@ -687,7 +691,9 @@ void gfx_opengl_reset_framebuffer(void)
glBindFramebuffer(GL_FRAMEBUFFER, 0); glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindFramebuffer(GL_FRAMEBUFFER_EXT, framebuffer); glBindFramebuffer(GL_FRAMEBUFFER_EXT, framebuffer);
if (GLEW_ARB_clip_control || GLEW_VERSION_4_5) {
glClipControl(GL_LOWER_LEFT, GL_NEGATIVE_ONE_TO_ONE); glClipControl(GL_LOWER_LEFT, GL_NEGATIVE_ONE_TO_ONE);
}
} }
void gfx_opengl_select_texture_fb(int fbID) void gfx_opengl_select_texture_fb(int fbID)