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Fix gamma correction on Quest

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This commit is contained in:
Brad Davis 2019-03-14 14:09:06 -07:00
parent 19f856b760
commit fd65f51140
3 changed files with 9 additions and 4 deletions
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8
android/libraries/oculus/src/main/assets/shaders/present.frag
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@ -30,8 +30,10 @@ vec4 color_LinearTosRGBA(vec4 lrgba) {
return vec4(color_LinearTosRGB(lrgba.xyz), lrgba.w);
}
// FIXME switch to texelfetch for getting from the source texture
// FIXME switch to texelfetch for getting from the source texture?
void main() {
FragColorL = color_LinearTosRGBA(texture(sampler, vTexCoordLR.xy));
FragColorR = color_LinearTosRGBA(texture(sampler, vTexCoordLR.zw));
//FragColorL = color_LinearTosRGBA(texture(sampler, vTexCoordLR.xy));
//FragColorR = color_LinearTosRGBA(texture(sampler, vTexCoordLR.zw));
FragColorL = texture(sampler, vTexCoordLR.xy);
FragColorR = texture(sampler, vTexCoordLR.zw);
}

4
libraries/oculusMobile/src/ovr/Framebuffer.cpp
View file

@ -100,7 +100,9 @@ void Framebuffer::drawBuffers(ovrEye eye) const {
void Framebuffer::SwapChainInfo::create(const glm::uvec2 &size) {
index = 0;
validTexture = false;
swapChain = vrapi_CreateTextureSwapChain3(VRAPI_TEXTURE_TYPE_2D, GL_RGBA8, size.x, size.y, 1, 3);
// GL_SRGB8_ALPHA8 and GL_RGBA8 appear to behave the same here. The only thing that changes the
// output gamma behavior is VRAPI_MODE_FLAG_FRONT_BUFFER_SRGB passed to vrapi_EnterVrMode
swapChain = vrapi_CreateTextureSwapChain3(VRAPI_TEXTURE_TYPE_2D, GL_SRGB8_ALPHA8, size.x, size.y, 1, 3);
length = vrapi_GetTextureSwapChainLength(swapChain);
if (!length) {
__android_log_write(ANDROID_LOG_WARN, "QQQ_OVR", "Unable to count swap chain textures");

1
libraries/oculusMobile/src/ovr/VrHandler.cpp
View file

@ -313,6 +313,7 @@ struct VrSurface : public TaskQueue {
ovrJava java{ vm, env, oculusActivity };
ovrModeParms modeParms = vrapi_DefaultModeParms(&java);
modeParms.Flags |= VRAPI_MODE_FLAG_NATIVE_WINDOW;
modeParms.Flags |= VRAPI_MODE_FLAG_FRONT_BUFFER_SRGB;
if (noErrorContext) {
modeParms.Flags |= VRAPI_MODE_FLAG_CREATE_CONTEXT_NO_ERROR;
}