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OpenXR - Make the initializations more universal

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This commit is contained in:
Lubos 2022-09-02 12:28:14 +02:00
parent b43a9a67c7
commit 807a8d2820
2 changed files with 33 additions and 32 deletions
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61
android/app/src/main/cpp/code/vr/vr_types.c
View file

@ -44,7 +44,10 @@ void ovrFramebuffer_Clear(ovrFramebuffer* frameBuffer) {
frameBuffer->ColorSwapChain.Width = 0;
frameBuffer->ColorSwapChain.Height = 0;
frameBuffer->ColorSwapChainImage = NULL;
frameBuffer->DepthBuffers = NULL;
frameBuffer->DepthSwapChain.Handle = XR_NULL_HANDLE;
frameBuffer->DepthSwapChain.Width = 0;
frameBuffer->DepthSwapChain.Height = 0;
frameBuffer->DepthSwapChainImage = NULL;
frameBuffer->FrameBuffers = NULL;
}
@ -64,8 +67,6 @@ bool ovrFramebuffer_Create(
XrSwapchainCreateInfo swapChainCreateInfo;
memset(&swapChainCreateInfo, 0, sizeof(swapChainCreateInfo));
swapChainCreateInfo.type = XR_TYPE_SWAPCHAIN_CREATE_INFO;
swapChainCreateInfo.usageFlags = XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT;
swapChainCreateInfo.format = GL_RGBA8;
swapChainCreateInfo.sampleCount = 1;
swapChainCreateInfo.width = width;
swapChainCreateInfo.height = height;
@ -75,56 +76,58 @@ bool ovrFramebuffer_Create(
frameBuffer->ColorSwapChain.Width = swapChainCreateInfo.width;
frameBuffer->ColorSwapChain.Height = swapChainCreateInfo.height;
frameBuffer->DepthSwapChain.Width = swapChainCreateInfo.width;
frameBuffer->DepthSwapChain.Height = swapChainCreateInfo.height;
// Create the swapchain.
// Create the color swapchain.
swapChainCreateInfo.format = GL_RGBA8;
swapChainCreateInfo.usageFlags = XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT;
OXR(xrCreateSwapchain(session, &swapChainCreateInfo, &frameBuffer->ColorSwapChain.Handle));
// Create the depth swapchain.
swapChainCreateInfo.format = GL_DEPTH24_STENCIL8;
swapChainCreateInfo.usageFlags = XR_SWAPCHAIN_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
OXR(xrCreateSwapchain(session, &swapChainCreateInfo, &frameBuffer->DepthSwapChain.Handle));
// Get the number of swapchain images.
OXR(xrEnumerateSwapchainImages(
frameBuffer->ColorSwapChain.Handle, 0, &frameBuffer->TextureSwapChainLength, NULL));
// Allocate the swapchain images array.
frameBuffer->ColorSwapChainImage = (XrSwapchainImageOpenGLESKHR*)malloc(
frameBuffer->TextureSwapChainLength * sizeof(XrSwapchainImageOpenGLESKHR));
frameBuffer->DepthSwapChainImage = (XrSwapchainImageOpenGLESKHR*)malloc(
frameBuffer->TextureSwapChainLength * sizeof(XrSwapchainImageOpenGLESKHR));
// Populate the swapchain image array.
for (uint32_t i = 0; i < frameBuffer->TextureSwapChainLength; i++) {
frameBuffer->ColorSwapChainImage[i].type = XR_TYPE_SWAPCHAIN_IMAGE_OPENGL_ES_KHR;
frameBuffer->ColorSwapChainImage[i].next = NULL;
frameBuffer->DepthSwapChainImage[i].type = XR_TYPE_SWAPCHAIN_IMAGE_OPENGL_ES_KHR;
frameBuffer->DepthSwapChainImage[i].next = NULL;
}
OXR(xrEnumerateSwapchainImages(
frameBuffer->ColorSwapChain.Handle,
frameBuffer->TextureSwapChainLength,
&frameBuffer->TextureSwapChainLength,
(XrSwapchainImageBaseHeader*)frameBuffer->ColorSwapChainImage));
OXR(xrEnumerateSwapchainImages(
frameBuffer->DepthSwapChain.Handle,
frameBuffer->TextureSwapChainLength,
&frameBuffer->TextureSwapChainLength,
(XrSwapchainImageBaseHeader*)frameBuffer->DepthSwapChainImage));
frameBuffer->DepthBuffers =
(GLuint*)malloc(frameBuffer->TextureSwapChainLength * sizeof(GLuint));
frameBuffer->FrameBuffers =
(GLuint*)malloc(frameBuffer->TextureSwapChainLength * sizeof(GLuint));
frameBuffer->FrameBuffers = (GLuint*)malloc(frameBuffer->TextureSwapChainLength * sizeof(GLuint));
for (uint32_t i = 0; i < frameBuffer->TextureSwapChainLength; i++) {
// Create the color buffer texture.
const GLuint colorTexture = frameBuffer->ColorSwapChainImage[i].image;
GLfloat borderColor[] = {0.0f, 0.0f, 0.0f, 0.0f};
GLenum textureTarget = GL_TEXTURE_2D_ARRAY;
GL(glBindTexture(textureTarget, colorTexture));
GL(glTexParameterfv(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BORDER_COLOR, borderColor));
GL(glTexParameteri(textureTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GL(glTexParameteri(textureTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
GL(glTexParameteri(textureTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
GL(glTexParameteri(textureTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
GL(glBindTexture(textureTarget, 0));
// Create depth buffer.
GL(glGenTextures(1, &frameBuffer->DepthBuffers[i]));
GL(glBindTexture(textureTarget, frameBuffer->DepthBuffers[i]));
GL(glTexStorage3D(textureTarget, 1, GL_DEPTH_COMPONENT24, width, height, 2));
GL(glBindTexture(textureTarget, 0));
const GLuint depthTexture = frameBuffer->DepthSwapChainImage[i].image;
// Create the frame buffer.
GL(glGenFramebuffers(1, &frameBuffer->FrameBuffers[i]));
GL(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, frameBuffer->FrameBuffers[i]));
GL(glFramebufferTextureMultiviewOVR(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, frameBuffer->DepthBuffers[i], 0, 0, 2));
GL(glFramebufferTextureMultiviewOVR(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, depthTexture, 0, 0, 2));
GL(glFramebufferTextureMultiviewOVR(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, depthTexture, 0, 0, 2));
GL(glFramebufferTextureMultiviewOVR(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, colorTexture, 0, 0, 2));
GL(GLenum renderFramebufferStatus = glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER));
GL(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0));
@ -139,11 +142,10 @@ bool ovrFramebuffer_Create(
void ovrFramebuffer_Destroy(ovrFramebuffer* frameBuffer) {
GL(glDeleteFramebuffers(frameBuffer->TextureSwapChainLength, frameBuffer->FrameBuffers));
GL(glDeleteRenderbuffers(frameBuffer->TextureSwapChainLength, frameBuffer->DepthBuffers));
OXR(xrDestroySwapchain(frameBuffer->ColorSwapChain.Handle));
OXR(xrDestroySwapchain(frameBuffer->DepthSwapChain.Handle));
free(frameBuffer->ColorSwapChainImage);
free(frameBuffer->DepthBuffers);
free(frameBuffer->DepthSwapChainImage);
free(frameBuffer->FrameBuffers);
ovrFramebuffer_Clear(frameBuffer);
@ -250,7 +252,6 @@ void ovrApp_Clear(ovrApp* app) {
app->LayerCount = 0;
app->MainThreadTid = 0;
app->RenderThreadTid = 0;
app->TouchPadDownLastFrame = false;
ovrRenderer_Clear(&app->Renderer);
}

4
android/app/src/main/cpp/code/vr/vr_types.h
View file

@ -56,8 +56,9 @@ typedef struct {
uint32_t TextureSwapChainLength;
uint32_t TextureSwapChainIndex;
ovrSwapChain ColorSwapChain;
ovrSwapChain DepthSwapChain;
XrSwapchainImageOpenGLESKHR* ColorSwapChainImage;
GLuint* DepthBuffers;
XrSwapchainImageOpenGLESKHR* DepthSwapChainImage;
GLuint* FrameBuffers;
} ovrFramebuffer;
@ -97,7 +98,6 @@ typedef struct {
ovrCompositorLayer_Union Layers[ovrMaxLayerCount];
int LayerCount;
GLboolean TouchPadDownLastFrame;
ovrRenderer Renderer;
ovrTrackedController TrackedController[2];
} ovrApp;