mirror of https://github.com/DrBeef/ioq3quest.git
OpenXR renderer in progress
This commit is contained in:
Lubos
parent
e7a2229edc
commit
7b9d51ec30
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@ -28,6 +28,7 @@ add_dependencies(main copy_libs)
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target_include_directories(main PRIVATE
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${CMAKE_SOURCE_DIR}/code/OpenXR-SDK/include
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${CMAKE_SOURCE_DIR}/code/OpenXR/Include
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${CMAKE_SOURCE_DIR}/code/SDL2/include
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${CMAKE_SOURCE_DIR}/code)
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@ -298,8 +298,6 @@ static void InitOpenGL( void )
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// set default state
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GL_SetDefaultState();
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VR_ReInitRenderer();
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}
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/*
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@ -0,0 +1,555 @@
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#include "vr_types.h"
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/************************************************************************************
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Original file name : XrCompositor_NativeActivity.c
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Copyright : Copyright (c) Facebook Technologies, LLC and its affiliates. All rights reserved.
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*************************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <string.h>
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#include <math.h>
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#include <time.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <sys/prctl.h>
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#include <android/log.h>
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#include <assert.h>
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#if !defined(EGL_OPENGL_ES3_BIT_KHR)
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#define EGL_OPENGL_ES3_BIT_KHR 0x0040
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#endif
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// EXT_texture_border_clamp
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#ifndef GL_CLAMP_TO_BORDER
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#define GL_CLAMP_TO_BORDER 0x812D
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#endif
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#ifndef GL_TEXTURE_BORDER_COLOR
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#define GL_TEXTURE_BORDER_COLOR 0x1004
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#endif
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#if !defined(GL_EXT_multisampled_render_to_texture)
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typedef void(GL_APIENTRY* PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC)(
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GLenum target,
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GLsizei samples,
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GLenum internalformat,
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GLsizei width,
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GLsizei height);
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typedef void(GL_APIENTRY* PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC)(
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GLenum target,
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GLenum attachment,
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GLenum textarget,
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GLuint texture,
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GLint level,
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GLsizei samples);
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#endif
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// GL_EXT_texture_cube_map_array
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#if !defined(GL_TEXTURE_CUBE_MAP_ARRAY)
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#define GL_TEXTURE_CUBE_MAP_ARRAY 0x9009
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#endif
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#define MATH_PI 3.14159265358979323846f
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#define GL(func) func;
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#define OXR(func) func;
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#define OVR_LOG_TAG "XrCompositor"
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#define ALOGE(...) Com_Printf(__VA_ARGS__)
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#define ALOGV(...) Com_Printf(__VA_ARGS__)
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static const int CPU_LEVEL = 2;
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static const int GPU_LEVEL = 3;
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static const int NUM_MULTI_SAMPLES = 4;
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typedef union {
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XrCompositionLayerProjection Projection;
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XrCompositionLayerQuad Quad;
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XrCompositionLayerCylinderKHR Cylinder;
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XrCompositionLayerCubeKHR Cube;
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XrCompositionLayerEquirect2KHR Equirect2;
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} ovrCompositorLayer_Union;
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/*
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================================================================================
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OpenGL-ES Utility Functions
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================================================================================
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*/
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static const char* EglErrorString(const EGLint error) {
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switch (error) {
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case EGL_SUCCESS:
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return "EGL_SUCCESS";
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case EGL_NOT_INITIALIZED:
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return "EGL_NOT_INITIALIZED";
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case EGL_BAD_ACCESS:
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return "EGL_BAD_ACCESS";
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case EGL_BAD_ALLOC:
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return "EGL_BAD_ALLOC";
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case EGL_BAD_ATTRIBUTE:
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return "EGL_BAD_ATTRIBUTE";
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case EGL_BAD_CONTEXT:
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return "EGL_BAD_CONTEXT";
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case EGL_BAD_CONFIG:
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return "EGL_BAD_CONFIG";
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case EGL_BAD_CURRENT_SURFACE:
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return "EGL_BAD_CURRENT_SURFACE";
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case EGL_BAD_DISPLAY:
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return "EGL_BAD_DISPLAY";
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case EGL_BAD_SURFACE:
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return "EGL_BAD_SURFACE";
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case EGL_BAD_MATCH:
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return "EGL_BAD_MATCH";
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case EGL_BAD_PARAMETER:
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return "EGL_BAD_PARAMETER";
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case EGL_BAD_NATIVE_PIXMAP:
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return "EGL_BAD_NATIVE_PIXMAP";
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case EGL_BAD_NATIVE_WINDOW:
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return "EGL_BAD_NATIVE_WINDOW";
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case EGL_CONTEXT_LOST:
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return "EGL_CONTEXT_LOST";
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default:
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return "unknown";
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}
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}
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static const char* GlFrameBufferStatusString(GLenum status) {
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switch (status) {
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case GL_FRAMEBUFFER_UNDEFINED:
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return "GL_FRAMEBUFFER_UNDEFINED";
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case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
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return "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT";
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case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
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return "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT";
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case GL_FRAMEBUFFER_UNSUPPORTED:
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return "GL_FRAMEBUFFER_UNSUPPORTED";
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case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE:
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return "GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE";
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default:
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return "unknown";
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}
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}
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/*
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================================================================================
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ovrFramebuffer
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================================================================================
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*/
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static void ovrFramebuffer_Clear(ovrFramebuffer* frameBuffer) {
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frameBuffer->Width = 0;
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frameBuffer->Height = 0;
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frameBuffer->Multisamples = 0;
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frameBuffer->TextureSwapChainLength = 0;
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frameBuffer->TextureSwapChainIndex = 0;
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frameBuffer->ColorSwapChain.Handle = XR_NULL_HANDLE;
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frameBuffer->ColorSwapChain.Width = 0;
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frameBuffer->ColorSwapChain.Height = 0;
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frameBuffer->ColorSwapChainImage = NULL;
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frameBuffer->DepthBuffers = NULL;
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frameBuffer->FrameBuffers = NULL;
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}
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static GLboolean ovrFramebuffer_Create(
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XrSession session,
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ovrFramebuffer* frameBuffer,
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const GLenum colorFormat,
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const int width,
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const int height,
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const int multisamples) {
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PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glRenderbufferStorageMultisampleEXT =
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(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC)eglGetProcAddress(
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"glRenderbufferStorageMultisampleEXT");
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PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC glFramebufferTexture2DMultisampleEXT =
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(PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC)eglGetProcAddress(
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"glFramebufferTexture2DMultisampleEXT");
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frameBuffer->Width = width;
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frameBuffer->Height = height;
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frameBuffer->Multisamples = multisamples;
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GLenum requestedGLFormat = colorFormat;
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// Get the number of supported formats.
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uint32_t numInputFormats = 0;
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uint32_t numOutputFormats = 0;
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OXR(xrEnumerateSwapchainFormats(session, numInputFormats, &numOutputFormats, NULL));
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// Allocate an array large enough to contain the supported formats.
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numInputFormats = numOutputFormats;
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int64_t* supportedFormats = (int64_t*)malloc(numOutputFormats * sizeof(int64_t));
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if (supportedFormats != NULL) {
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OXR(xrEnumerateSwapchainFormats(
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session, numInputFormats, &numOutputFormats, supportedFormats));
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}
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// Verify the requested format is supported.
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uint64_t selectedFormat = 0;
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for (uint32_t i = 0; i < numOutputFormats; i++) {
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if (supportedFormats[i] == requestedGLFormat) {
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selectedFormat = supportedFormats[i];
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break;
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}
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}
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free(supportedFormats);
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if (selectedFormat == 0) {
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ALOGE("Format not supported");
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}
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XrSwapchainCreateInfo swapChainCreateInfo;
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memset(&swapChainCreateInfo, 0, sizeof(swapChainCreateInfo));
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swapChainCreateInfo.type = XR_TYPE_SWAPCHAIN_CREATE_INFO;
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swapChainCreateInfo.usageFlags =
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XR_SWAPCHAIN_USAGE_SAMPLED_BIT | XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT;
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swapChainCreateInfo.format = selectedFormat;
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swapChainCreateInfo.sampleCount = 1;
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swapChainCreateInfo.width = width;
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swapChainCreateInfo.height = height;
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swapChainCreateInfo.faceCount = 1;
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swapChainCreateInfo.arraySize = 1;
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swapChainCreateInfo.mipCount = 1;
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// Enable Foveation on this swapchain
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XrSwapchainCreateInfoFoveationFB swapChainFoveationCreateInfo;
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memset(&swapChainFoveationCreateInfo, 0, sizeof(swapChainFoveationCreateInfo));
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swapChainFoveationCreateInfo.type = XR_TYPE_SWAPCHAIN_CREATE_INFO_FOVEATION_FB;
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swapChainCreateInfo.next = &swapChainFoveationCreateInfo;
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frameBuffer->ColorSwapChain.Width = swapChainCreateInfo.width;
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frameBuffer->ColorSwapChain.Height = swapChainCreateInfo.height;
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// Create the swapchain.
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OXR(xrCreateSwapchain(session, &swapChainCreateInfo, &frameBuffer->ColorSwapChain.Handle));
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// Get the number of swapchain images.
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OXR(xrEnumerateSwapchainImages(
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frameBuffer->ColorSwapChain.Handle, 0, &frameBuffer->TextureSwapChainLength, NULL));
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// Allocate the swapchain images array.
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frameBuffer->ColorSwapChainImage = (XrSwapchainImageOpenGLESKHR*)malloc(
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frameBuffer->TextureSwapChainLength * sizeof(XrSwapchainImageOpenGLESKHR));
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// Populate the swapchain image array.
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for (uint32_t i = 0; i < frameBuffer->TextureSwapChainLength; i++) {
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frameBuffer->ColorSwapChainImage[i].type = XR_TYPE_SWAPCHAIN_IMAGE_OPENGL_ES_KHR;
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frameBuffer->ColorSwapChainImage[i].next = NULL;
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}
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OXR(xrEnumerateSwapchainImages(
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frameBuffer->ColorSwapChain.Handle,
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frameBuffer->TextureSwapChainLength,
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&frameBuffer->TextureSwapChainLength,
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(XrSwapchainImageBaseHeader*)frameBuffer->ColorSwapChainImage));
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frameBuffer->DepthBuffers =
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(GLuint*)malloc(frameBuffer->TextureSwapChainLength * sizeof(GLuint));
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frameBuffer->FrameBuffers =
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(GLuint*)malloc(frameBuffer->TextureSwapChainLength * sizeof(GLuint));
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for (uint32_t i = 0; i < frameBuffer->TextureSwapChainLength; i++) {
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// Create the color buffer texture.
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const GLuint colorTexture = frameBuffer->ColorSwapChainImage[i].image;
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GLenum colorTextureTarget = GL_TEXTURE_2D;
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GL(glBindTexture(colorTextureTarget, colorTexture));
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GL(glTexParameteri(colorTextureTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
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GL(glTexParameteri(colorTextureTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
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GL(glTexParameteri(colorTextureTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
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GL(glTexParameteri(colorTextureTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
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GL(glBindTexture(colorTextureTarget, 0));
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if (multisamples > 1 && glRenderbufferStorageMultisampleEXT != NULL &&
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glFramebufferTexture2DMultisampleEXT != NULL) {
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// Create multisampled depth buffer.
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GL(glGenRenderbuffers(1, &frameBuffer->DepthBuffers[i]));
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GL(glBindRenderbuffer(GL_RENDERBUFFER, frameBuffer->DepthBuffers[i]));
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GL(glRenderbufferStorageMultisampleEXT(
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GL_RENDERBUFFER, multisamples, GL_DEPTH_COMPONENT24, width, height));
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GL(glBindRenderbuffer(GL_RENDERBUFFER, 0));
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// Create the frame buffer.
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// NOTE: glFramebufferTexture2DMultisampleEXT only works with GL_FRAMEBUFFER.
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GL(glGenFramebuffers(1, &frameBuffer->FrameBuffers[i]));
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GL(glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer->FrameBuffers[i]));
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GL(glFramebufferTexture2DMultisampleEXT(
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GL_FRAMEBUFFER,
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GL_COLOR_ATTACHMENT0,
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GL_TEXTURE_2D,
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colorTexture,
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0,
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multisamples));
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GL(glFramebufferRenderbuffer(
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GL_FRAMEBUFFER,
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GL_DEPTH_ATTACHMENT,
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GL_RENDERBUFFER,
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frameBuffer->DepthBuffers[i]));
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GL(GLenum renderFramebufferStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER));
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GL(glBindFramebuffer(GL_FRAMEBUFFER, 0));
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if (renderFramebufferStatus != GL_FRAMEBUFFER_COMPLETE) {
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ALOGE(
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"Incomplete frame buffer object: %s",
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GlFrameBufferStatusString(renderFramebufferStatus));
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return false;
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}
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} else {
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// Create depth buffer.
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GL(glGenRenderbuffers(1, &frameBuffer->DepthBuffers[i]));
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GL(glBindRenderbuffer(GL_RENDERBUFFER, frameBuffer->DepthBuffers[i]));
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GL(glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height));
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GL(glBindRenderbuffer(GL_RENDERBUFFER, 0));
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// Create the frame buffer.
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GL(glGenFramebuffers(1, &frameBuffer->FrameBuffers[i]));
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GL(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, frameBuffer->FrameBuffers[i]));
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GL(glFramebufferRenderbuffer(
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GL_DRAW_FRAMEBUFFER,
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GL_DEPTH_ATTACHMENT,
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GL_RENDERBUFFER,
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frameBuffer->DepthBuffers[i]));
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GL(glFramebufferTexture2D(
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GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, colorTexture, 0));
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GL(GLenum renderFramebufferStatus = glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER));
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GL(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0));
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if (renderFramebufferStatus != GL_FRAMEBUFFER_COMPLETE) {
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ALOGE(
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"Incomplete frame buffer object: %s",
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GlFrameBufferStatusString(renderFramebufferStatus));
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return false;
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}
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}
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}
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return true;
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}
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static void ovrFramebuffer_Destroy(ovrFramebuffer* frameBuffer) {
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GL(glDeleteFramebuffers(frameBuffer->TextureSwapChainLength, frameBuffer->FrameBuffers));
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GL(glDeleteRenderbuffers(frameBuffer->TextureSwapChainLength, frameBuffer->DepthBuffers));
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OXR(xrDestroySwapchain(frameBuffer->ColorSwapChain.Handle));
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free(frameBuffer->ColorSwapChainImage);
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free(frameBuffer->DepthBuffers);
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free(frameBuffer->FrameBuffers);
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ovrFramebuffer_Clear(frameBuffer);
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}
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static void ovrFramebuffer_SetCurrent(ovrFramebuffer* frameBuffer) {
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GL(glBindFramebuffer(
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GL_DRAW_FRAMEBUFFER, frameBuffer->FrameBuffers[frameBuffer->TextureSwapChainIndex]));
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}
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static void ovrFramebuffer_SetNone() {
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GL(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0));
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}
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static void ovrFramebuffer_Resolve(ovrFramebuffer* frameBuffer) {
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// Discard the depth buffer, so the tiler won't need to write it back out to memory.
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const GLenum depthAttachment[1] = {GL_DEPTH_ATTACHMENT};
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glInvalidateFramebuffer(GL_DRAW_FRAMEBUFFER, 1, depthAttachment);
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// We now let the resolve happen implicitly.
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}
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static void ovrFramebuffer_Acquire(ovrFramebuffer* frameBuffer) {
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// Acquire the swapchain image
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XrSwapchainImageAcquireInfo acquireInfo = {XR_TYPE_SWAPCHAIN_IMAGE_ACQUIRE_INFO, NULL};
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OXR(xrAcquireSwapchainImage(
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frameBuffer->ColorSwapChain.Handle, &acquireInfo, &frameBuffer->TextureSwapChainIndex));
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XrSwapchainImageWaitInfo waitInfo;
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waitInfo.type = XR_TYPE_SWAPCHAIN_IMAGE_WAIT_INFO;
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waitInfo.next = NULL;
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waitInfo.timeout = 1000000000; /* timeout in nanoseconds */
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XrResult res = xrWaitSwapchainImage(frameBuffer->ColorSwapChain.Handle, &waitInfo);
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int i = 0;
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while (res == XR_TIMEOUT_EXPIRED) {
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res = xrWaitSwapchainImage(frameBuffer->ColorSwapChain.Handle, &waitInfo);
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i++;
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ALOGV(
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" Retry xrWaitSwapchainImage %d times due to XR_TIMEOUT_EXPIRED (duration %f seconds)",
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i,
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waitInfo.timeout * (1E-9));
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}
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}
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static void ovrFramebuffer_Release(ovrFramebuffer* frameBuffer) {
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XrSwapchainImageReleaseInfo releaseInfo = {XR_TYPE_SWAPCHAIN_IMAGE_RELEASE_INFO, NULL};
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OXR(xrReleaseSwapchainImage(frameBuffer->ColorSwapChain.Handle, &releaseInfo));
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}
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/*
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================================================================================
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ovrRenderer
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================================================================================
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*/
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static void ovrRenderer_Clear(ovrRenderer* renderer) {
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for (int eye = 0; eye < XR_EYES_COUNT; eye++) {
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ovrFramebuffer_Clear(&renderer->FrameBuffer[eye]);
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}
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}
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static void ovrRenderer_Create(
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XrSession session,
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ovrRenderer* renderer,
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int suggestedEyeTextureWidth,
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int suggestedEyeTextureHeight) {
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// Create the frame buffers.
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for (int eye = 0; eye < XR_EYES_COUNT; eye++) {
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ovrFramebuffer_Create(
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session,
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&renderer->FrameBuffer[eye],
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GL_SRGB8_ALPHA8,
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suggestedEyeTextureWidth,
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suggestedEyeTextureHeight,
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NUM_MULTI_SAMPLES);
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}
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}
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static void ovrRenderer_Destroy(ovrRenderer* renderer) {
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for (int eye = 0; eye < XR_EYES_COUNT; eye++) {
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ovrFramebuffer_Destroy(&renderer->FrameBuffer[eye]);
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}
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}
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static void ovrRenderer_SetFoveation(
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XrInstance* instance,
|
||||
XrSession* session,
|
||||
ovrRenderer* renderer,
|
||||
XrFoveationLevelFB level,
|
||||
float verticalOffset,
|
||||
XrFoveationDynamicFB dynamic) {
|
||||
PFN_xrCreateFoveationProfileFB pfnCreateFoveationProfileFB;
|
||||
OXR(xrGetInstanceProcAddr(
|
||||
*instance,
|
||||
"xrCreateFoveationProfileFB",
|
||||
(PFN_xrVoidFunction*)(&pfnCreateFoveationProfileFB)));
|
||||
|
||||
PFN_xrDestroyFoveationProfileFB pfnDestroyFoveationProfileFB;
|
||||
OXR(xrGetInstanceProcAddr(
|
||||
*instance,
|
||||
"xrDestroyFoveationProfileFB",
|
||||
(PFN_xrVoidFunction*)(&pfnDestroyFoveationProfileFB)));
|
||||
|
||||
PFN_xrUpdateSwapchainFB pfnUpdateSwapchainFB;
|
||||
OXR(xrGetInstanceProcAddr(
|
||||
*instance, "xrUpdateSwapchainFB", (PFN_xrVoidFunction*)(&pfnUpdateSwapchainFB)));
|
||||
|
||||
for (int eye = 0; eye < XR_EYES_COUNT; eye++) {
|
||||
XrFoveationLevelProfileCreateInfoFB levelProfileCreateInfo;
|
||||
memset(&levelProfileCreateInfo, 0, sizeof(levelProfileCreateInfo));
|
||||
levelProfileCreateInfo.type = XR_TYPE_FOVEATION_LEVEL_PROFILE_CREATE_INFO_FB;
|
||||
levelProfileCreateInfo.level = level;
|
||||
levelProfileCreateInfo.verticalOffset = verticalOffset;
|
||||
levelProfileCreateInfo.dynamic = dynamic;
|
||||
|
||||
XrFoveationProfileCreateInfoFB profileCreateInfo;
|
||||
memset(&profileCreateInfo, 0, sizeof(profileCreateInfo));
|
||||
profileCreateInfo.type = XR_TYPE_FOVEATION_PROFILE_CREATE_INFO_FB;
|
||||
profileCreateInfo.next = &levelProfileCreateInfo;
|
||||
|
||||
XrFoveationProfileFB foveationProfile;
|
||||
|
||||
pfnCreateFoveationProfileFB(*session, &profileCreateInfo, &foveationProfile);
|
||||
|
||||
XrSwapchainStateFoveationFB foveationUpdateState;
|
||||
memset(&foveationUpdateState, 0, sizeof(foveationUpdateState));
|
||||
foveationUpdateState.type = XR_TYPE_SWAPCHAIN_STATE_FOVEATION_FB;
|
||||
foveationUpdateState.profile = foveationProfile;
|
||||
|
||||
pfnUpdateSwapchainFB(
|
||||
renderer->FrameBuffer[eye].ColorSwapChain.Handle,
|
||||
(XrSwapchainStateBaseHeaderFB*)(&foveationUpdateState));
|
||||
|
||||
pfnDestroyFoveationProfileFB(foveationProfile);
|
||||
}
|
||||
}
|
||||
|
||||
static inline ovrMatrix4f ovrMatrix4f_CreateProjection(
|
||||
const float minX,
|
||||
const float maxX,
|
||||
float const minY,
|
||||
const float maxY,
|
||||
const float nearZ,
|
||||
const float farZ) {
|
||||
const float width = maxX - minX;
|
||||
const float height = maxY - minY;
|
||||
const float offsetZ = nearZ; // set to zero for a [0,1] clip space
|
||||
|
||||
ovrMatrix4f out;
|
||||
if (farZ <= nearZ) {
|
||||
// place the far plane at infinity
|
||||
out.M[0][0] = 2 * nearZ / width;
|
||||
out.M[0][1] = 0;
|
||||
out.M[0][2] = (maxX + minX) / width;
|
||||
out.M[0][3] = 0;
|
||||
|
||||
out.M[1][0] = 0;
|
||||
out.M[1][1] = 2 * nearZ / height;
|
||||
out.M[1][2] = (maxY + minY) / height;
|
||||
out.M[1][3] = 0;
|
||||
|
||||
out.M[2][0] = 0;
|
||||
out.M[2][1] = 0;
|
||||
out.M[2][2] = -1;
|
||||
out.M[2][3] = -(nearZ + offsetZ);
|
||||
|
||||
out.M[3][0] = 0;
|
||||
out.M[3][1] = 0;
|
||||
out.M[3][2] = -1;
|
||||
out.M[3][3] = 0;
|
||||
} else {
|
||||
// normal projection
|
||||
out.M[0][0] = 2 * nearZ / width;
|
||||
out.M[0][1] = 0;
|
||||
out.M[0][2] = (maxX + minX) / width;
|
||||
out.M[0][3] = 0;
|
||||
|
||||
out.M[1][0] = 0;
|
||||
out.M[1][1] = 2 * nearZ / height;
|
||||
out.M[1][2] = (maxY + minY) / height;
|
||||
out.M[1][3] = 0;
|
||||
|
||||
out.M[2][0] = 0;
|
||||
out.M[2][1] = 0;
|
||||
out.M[2][2] = -(farZ + offsetZ) / (farZ - nearZ);
|
||||
out.M[2][3] = -(farZ * (nearZ + offsetZ)) / (farZ - nearZ);
|
||||
|
||||
out.M[3][0] = 0;
|
||||
out.M[3][1] = 0;
|
||||
out.M[3][2] = -1;
|
||||
out.M[3][3] = 0;
|
||||
}
|
||||
return out;
|
||||
}
|
||||
|
||||
static inline ovrMatrix4f ovrMatrix4f_CreateProjectionFov(
|
||||
const float fovDegreesX,
|
||||
const float fovDegreesY,
|
||||
const float offsetX,
|
||||
const float offsetY,
|
||||
const float nearZ,
|
||||
const float farZ) {
|
||||
const float halfWidth = nearZ * tanf(fovDegreesX * (M_PI / 180.0f * 0.5f));
|
||||
const float halfHeight = nearZ * tanf(fovDegreesY * (M_PI / 180.0f * 0.5f));
|
||||
|
||||
const float minX = offsetX - halfWidth;
|
||||
const float maxX = offsetX + halfWidth;
|
||||
|
||||
const float minY = offsetY - halfHeight;
|
||||
const float maxY = offsetY + halfHeight;
|
||||
|
||||
return ovrMatrix4f_CreateProjection(minX, maxX, minY, maxY, nearZ, farZ);
|
||||
}
|
||||
|
|
@ -259,7 +259,6 @@ void VR_EnterVR( engine_t* engine, ovrJava java ) {
|
|||
sessionCreateInfo.next = &graphicsBindingAndroidGLES;
|
||||
sessionCreateInfo.createFlags = 0;
|
||||
sessionCreateInfo.systemId = engine->systemId;
|
||||
|
||||
if (xrCreateSession(engine->instance, &sessionCreateInfo, &engine->session) != XR_SUCCESS) {
|
||||
Com_Printf("xrCreateSession failed");
|
||||
exit(1);
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
#include "../qcommon/q_shared.h"
|
||||
#include "../qcommon/qcommon.h"
|
||||
#include "../client/client.h"
|
||||
#include "ovr_renderer.inl"
|
||||
|
||||
#include "vr_clientinfo.h"
|
||||
#include "vr_types.h"
|
||||
|
|
@ -23,6 +24,7 @@
|
|||
|
||||
extern vr_clientinfo_t vr;
|
||||
|
||||
|
||||
void APIENTRY VR_GLDebugLog(GLenum source, GLenum type, GLuint id,
|
||||
GLenum severity, GLsizei length, const GLchar* message, const void* userParam)
|
||||
{
|
||||
|
|
@ -87,64 +89,21 @@ void VR_InitRenderer( engine_t* engine ) {
|
|||
glDebugMessageCallback(VR_GLDebugLog, 0);
|
||||
#endif
|
||||
|
||||
//TODO:
|
||||
/*
|
||||
int eyeW, eyeH;
|
||||
VR_GetResolution(engine, &eyeW, &eyeH);
|
||||
|
||||
for (int eye = 0; eye < VRAPI_FRAME_LAYER_EYE_MAX; ++eye) {
|
||||
framebuffer_t* framebuffer = &engine->framebuffers[eye];
|
||||
framebuffer->colorTexture = vrapi_CreateTextureSwapChain3(VRAPI_TEXTURE_TYPE_2D, GL_RGBA8,
|
||||
eyeW, eyeH, 1, 3);
|
||||
framebuffer->swapchainLength = vrapi_GetTextureSwapChainLength(framebuffer->colorTexture);
|
||||
framebuffer->depthBuffers = (GLuint*)malloc(framebuffer->swapchainLength * sizeof(GLuint));
|
||||
framebuffer->framebuffers = (GLuint*)malloc(framebuffer->swapchainLength * sizeof(GLuint));
|
||||
ovrRenderer_Create(engine->session, &engine->renderer, eyeW, eyeH);
|
||||
|
||||
for (int index = 0; index < framebuffer->swapchainLength; ++index) {
|
||||
GLuint colorTexture;
|
||||
GLenum framebufferStatus;
|
||||
|
||||
colorTexture = vrapi_GetTextureSwapChainHandle(framebuffer->colorTexture, index);
|
||||
glBindTexture(GL_TEXTURE_2D, colorTexture);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glBindTexture(GL_TEXTURE_2D, 0);
|
||||
|
||||
glGenRenderbuffers(1, &framebuffer->depthBuffers[index]);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, framebuffer->depthBuffers[index]);
|
||||
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, eyeW, eyeH);
|
||||
glBindRenderbuffer(GL_RENDERBUFFER, 0);
|
||||
|
||||
glGenFramebuffers(1, &framebuffer->framebuffers[index]);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer->framebuffers[index]);
|
||||
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER,
|
||||
framebuffer->depthBuffers[index]);
|
||||
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, colorTexture, 0);
|
||||
framebufferStatus = glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
|
||||
assert(framebufferStatus == GL_FRAMEBUFFER_COMPLETE);
|
||||
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
|
||||
}
|
||||
}
|
||||
*/
|
||||
XrReferenceSpaceCreateInfo spaceCreateInfo = {};
|
||||
spaceCreateInfo.type = XR_TYPE_REFERENCE_SPACE_CREATE_INFO;
|
||||
spaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_STAGE;
|
||||
spaceCreateInfo.poseInReferenceSpace.orientation.w = 1.0f;
|
||||
spaceCreateInfo.poseInReferenceSpace.position.y = 0.0f;
|
||||
xrCreateReferenceSpace(engine->session, &spaceCreateInfo, &engine->stageSpace);
|
||||
}
|
||||
|
||||
void VR_DestroyRenderer( engine_t* engine ) {
|
||||
//TODO:
|
||||
/*
|
||||
for (int eye = 0; eye < VRAPI_FRAME_LAYER_EYE_MAX; ++eye)
|
||||
{
|
||||
if (engine->framebuffers[eye].swapchainLength > 0) {
|
||||
glDeleteFramebuffers(engine->framebuffers[eye].swapchainLength,
|
||||
engine->framebuffers[eye].depthBuffers);
|
||||
free(engine->framebuffers[eye].depthBuffers);
|
||||
free(engine->framebuffers[eye].framebuffers);
|
||||
|
||||
vrapi_DestroyTextureSwapChain(engine->framebuffers[eye].colorTexture);
|
||||
|
||||
memset(&engine->framebuffers[eye], 0, sizeof(engine->framebuffers[eye]));
|
||||
}
|
||||
}
|
||||
*/
|
||||
xrDestroySpace(engine->stageSpace);
|
||||
ovrRenderer_Destroy(&engine->renderer);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -238,9 +197,8 @@ ovrLayerCylinder2 BuildCylinderLayer(engine_t* engine, const int textureWidth, c
|
|||
}
|
||||
*/
|
||||
|
||||
void VR_ClearFrameBuffer( GLuint frameBuffer, int width, int height)
|
||||
void VR_ClearFrameBuffer( int width, int height )
|
||||
{
|
||||
glBindFramebuffer( GL_DRAW_FRAMEBUFFER, frameBuffer );
|
||||
|
||||
glEnable( GL_SCISSOR_TEST );
|
||||
glViewport( 0, 0, width, height );
|
||||
|
|
@ -261,11 +219,165 @@ void VR_ClearFrameBuffer( GLuint frameBuffer, int width, int height)
|
|||
|
||||
glScissor( 0, 0, 0, 0 );
|
||||
glDisable( GL_SCISSOR_TEST );
|
||||
|
||||
glBindFramebuffer( GL_DRAW_FRAMEBUFFER, 0 );
|
||||
}
|
||||
|
||||
void VR_DrawFrame( engine_t* engine ) {
|
||||
XrEventDataBuffer eventDataBuffer = {};
|
||||
|
||||
// Poll for events
|
||||
for (;;) {
|
||||
XrEventDataBaseHeader *baseEventHeader = (XrEventDataBaseHeader * )(&eventDataBuffer);
|
||||
baseEventHeader->type = XR_TYPE_EVENT_DATA_BUFFER;
|
||||
baseEventHeader->next = NULL;
|
||||
if (xrPollEvent(engine->instance, &eventDataBuffer) != XR_SUCCESS) {
|
||||
break;
|
||||
}
|
||||
if (baseEventHeader->type == XR_TYPE_EVENT_DATA_SESSION_STATE_CHANGED) {
|
||||
const XrEventDataSessionStateChanged* session_state_changed_event =
|
||||
(XrEventDataSessionStateChanged*)(baseEventHeader);
|
||||
switch (session_state_changed_event->state) {
|
||||
case XR_SESSION_STATE_READY:
|
||||
if (!engine->sessionActive) {
|
||||
XrSessionBeginInfo sessionBeginInfo;
|
||||
memset(&sessionBeginInfo, 0, sizeof(sessionBeginInfo));
|
||||
sessionBeginInfo.type = XR_TYPE_SESSION_BEGIN_INFO;
|
||||
sessionBeginInfo.next = NULL;
|
||||
sessionBeginInfo.primaryViewConfigurationType = XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO;
|
||||
if (xrBeginSession(engine->session, &sessionBeginInfo) != XR_SUCCESS) {
|
||||
Com_Printf("xrBeginSession failed");
|
||||
exit(1);
|
||||
}
|
||||
engine->sessionActive = GL_TRUE;
|
||||
}
|
||||
break;
|
||||
case XR_SESSION_STATE_STOPPING:
|
||||
if (engine->sessionActive) {
|
||||
xrEndSession(engine->session);
|
||||
engine->sessionActive = GL_FALSE;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!engine->sessionActive) {
|
||||
return;
|
||||
}
|
||||
|
||||
// NOTE: OpenXR does not use the concept of frame indices. Instead,
|
||||
// XrWaitFrame returns the predicted display time.
|
||||
XrFrameWaitInfo waitFrameInfo = {};
|
||||
waitFrameInfo.type = XR_TYPE_FRAME_WAIT_INFO;
|
||||
waitFrameInfo.next = NULL;
|
||||
XrFrameState frameState = {};
|
||||
frameState.type = XR_TYPE_FRAME_STATE;
|
||||
frameState.next = NULL;
|
||||
xrWaitFrame(engine->session, &waitFrameInfo, &frameState);
|
||||
|
||||
XrFrameBeginInfo beginFrameDesc = {};
|
||||
beginFrameDesc.type = XR_TYPE_FRAME_BEGIN_INFO;
|
||||
beginFrameDesc.next = NULL;
|
||||
xrBeginFrame(engine->session, &beginFrameDesc);
|
||||
|
||||
float fov_y = 90; //TODO:
|
||||
float fov_x = 90; //TODO:
|
||||
|
||||
if (vr.weapon_zoomed) {
|
||||
vr.weapon_zoomLevel += 0.05;
|
||||
if (vr.weapon_zoomLevel > 2.5f)
|
||||
vr.weapon_zoomLevel = 2.5f;
|
||||
}
|
||||
else {
|
||||
//Zoom back out quicker
|
||||
vr.weapon_zoomLevel -= 0.25f;
|
||||
if (vr.weapon_zoomLevel < 1.0f)
|
||||
vr.weapon_zoomLevel = 1.0f;
|
||||
}
|
||||
|
||||
const ovrMatrix4f projectionMatrix = ovrMatrix4f_CreateProjectionFov(
|
||||
fov_x / vr.weapon_zoomLevel, fov_y / vr.weapon_zoomLevel, 0.0f, 0.0f, 1.0f, 0.0f );
|
||||
re.SetVRHeadsetParms(projectionMatrix.M,
|
||||
engine->renderer.FrameBuffer[0].FrameBuffers[engine->renderer.FrameBuffer[0].TextureSwapChainIndex],
|
||||
engine->renderer.FrameBuffer[1].FrameBuffers[engine->renderer.FrameBuffer[1].TextureSwapChainIndex]);
|
||||
|
||||
for (int eye = 0; eye < XR_EYES_COUNT; eye++) {
|
||||
ovrFramebuffer* frameBuffer = &engine->renderer.FrameBuffer[eye];
|
||||
ovrFramebuffer_Acquire(frameBuffer);
|
||||
ovrFramebuffer_SetCurrent(frameBuffer);
|
||||
|
||||
VR_ClearFrameBuffer(frameBuffer->Width, frameBuffer->Height);
|
||||
Com_Frame();
|
||||
|
||||
ovrFramebuffer_Resolve(frameBuffer);
|
||||
ovrFramebuffer_Release(frameBuffer);
|
||||
}
|
||||
ovrFramebuffer_SetNone();
|
||||
|
||||
// Compose the layers for this frame.
|
||||
XrCompositionLayerProjectionView projection_layer_elements[XR_EYES_COUNT] = {};
|
||||
XrCompositionLayerProjection projection_layer = {};
|
||||
projection_layer.type = XR_TYPE_COMPOSITION_LAYER_PROJECTION;
|
||||
projection_layer.layerFlags = XR_COMPOSITION_LAYER_BLEND_TEXTURE_SOURCE_ALPHA_BIT;
|
||||
projection_layer.layerFlags |= XR_COMPOSITION_LAYER_CORRECT_CHROMATIC_ABERRATION_BIT;
|
||||
projection_layer.space = engine->stageSpace;
|
||||
projection_layer.viewCount = XR_EYES_COUNT;
|
||||
projection_layer.views = projection_layer_elements;
|
||||
|
||||
XrPosef viewTransform[2];
|
||||
ovrSceneMatrices sceneMatrices;
|
||||
XrView* projections = (XrView*)(malloc(XR_EYES_COUNT * sizeof(XrView)));
|
||||
for (int eye = 0; eye < XR_EYES_COUNT; eye++) {
|
||||
XrPosef xfHeadFromEye = projections[eye].pose;
|
||||
//XrPosef xfStageFromEye = XrPosef_Multiply(xfStageFromHead, xfHeadFromEye);
|
||||
viewTransform[eye] = XrPosef_Inverse(xfHeadFromEye); //TODO:there should be xfStageFromEye as parameter
|
||||
|
||||
sceneMatrices.ViewMatrix[eye] =
|
||||
XrMatrix4x4f_CreateFromRigidTransform(&viewTransform[eye]);
|
||||
const XrFovf fov = projections[eye].fov;
|
||||
XrMatrix4x4f_CreateProjectionFov(
|
||||
&sceneMatrices.ProjectionMatrix[eye],
|
||||
fov.angleLeft,
|
||||
fov.angleRight,
|
||||
fov.angleUp,
|
||||
fov.angleDown,
|
||||
0.1f,
|
||||
0.0f);
|
||||
}
|
||||
|
||||
for (int eye = 0; eye < XR_EYES_COUNT; eye++) {
|
||||
ovrFramebuffer* frameBuffer = &engine->renderer.FrameBuffer[eye];
|
||||
|
||||
memset(&projection_layer_elements[eye], 0, sizeof(XrCompositionLayerProjectionView));
|
||||
projection_layer_elements[eye].type = XR_TYPE_COMPOSITION_LAYER_PROJECTION_VIEW;
|
||||
|
||||
projection_layer_elements[eye].pose = XrPosef_Inverse(viewTransform[eye]);
|
||||
projection_layer_elements[eye].fov = projections[eye].fov;
|
||||
|
||||
memset(&projection_layer_elements[eye].subImage, 0, sizeof(XrSwapchainSubImage));
|
||||
projection_layer_elements[eye].subImage.swapchain = frameBuffer->ColorSwapChain.Handle;
|
||||
projection_layer_elements[eye].subImage.imageRect.offset.x = 0;
|
||||
projection_layer_elements[eye].subImage.imageRect.offset.y = 0;
|
||||
projection_layer_elements[eye].subImage.imageRect.extent.width =
|
||||
frameBuffer->ColorSwapChain.Width;
|
||||
projection_layer_elements[eye].subImage.imageRect.extent.height =
|
||||
frameBuffer->ColorSwapChain.Height;
|
||||
projection_layer_elements[eye].subImage.imageArrayIndex = 0;
|
||||
}
|
||||
|
||||
|
||||
// Compose the layers for this frame.
|
||||
const XrCompositionLayerBaseHeader* layers[1] = {};
|
||||
layers[0] = (const XrCompositionLayerBaseHeader*)&projection_layer;
|
||||
|
||||
XrFrameEndInfo endFrameInfo = {};
|
||||
endFrameInfo.type = XR_TYPE_FRAME_END_INFO;
|
||||
endFrameInfo.displayTime = frameState.predictedDisplayTime;
|
||||
endFrameInfo.environmentBlendMode = XR_ENVIRONMENT_BLEND_MODE_OPAQUE;
|
||||
endFrameInfo.layerCount = 1;
|
||||
endFrameInfo.layers = layers;
|
||||
|
||||
xrEndFrame(engine->session, &endFrameInfo);
|
||||
free(projections);
|
||||
|
||||
//TODO
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -10,13 +10,18 @@
|
|||
#endif
|
||||
|
||||
//OpenXR
|
||||
#define XR_EYES_COUNT 2
|
||||
#define XR_USE_GRAPHICS_API_OPENGL_ES 1
|
||||
#define XR_USE_PLATFORM_ANDROID 1
|
||||
#include <EGL/egl.h>
|
||||
#include <EGL/eglext.h>
|
||||
#include <GLES3/gl3.h>
|
||||
#include <GLES3/gl3ext.h>
|
||||
#include <jni.h>
|
||||
#include <openxr/openxr.h>
|
||||
#include <openxr/openxr_platform.h>
|
||||
#include <openxr/openxr_oculus.h>
|
||||
#include <openxr/openxr_oculus_helpers.h>
|
||||
|
||||
typedef struct {
|
||||
JavaVM* Vm;
|
||||
|
|
@ -25,22 +30,45 @@ typedef struct {
|
|||
} ovrJava;
|
||||
|
||||
typedef struct {
|
||||
int swapchainLength;
|
||||
int swapchainIndex;
|
||||
//TODO:ovrTextureSwapChain* colorTexture;
|
||||
GLuint* depthBuffers;
|
||||
GLuint* framebuffers;
|
||||
} framebuffer_t;
|
||||
XrSwapchain Handle;
|
||||
uint32_t Width;
|
||||
uint32_t Height;
|
||||
} ovrSwapChain;
|
||||
|
||||
typedef struct {
|
||||
int Width;
|
||||
int Height;
|
||||
int Multisamples;
|
||||
uint32_t TextureSwapChainLength;
|
||||
uint32_t TextureSwapChainIndex;
|
||||
ovrSwapChain ColorSwapChain;
|
||||
XrSwapchainImageOpenGLESKHR* ColorSwapChainImage;
|
||||
GLuint* DepthBuffers;
|
||||
GLuint* FrameBuffers;
|
||||
} ovrFramebuffer;
|
||||
|
||||
typedef struct {
|
||||
ovrFramebuffer FrameBuffer[XR_EYES_COUNT];
|
||||
} ovrRenderer;
|
||||
|
||||
typedef struct {
|
||||
XrMatrix4x4f ViewMatrix[XR_EYES_COUNT];
|
||||
XrMatrix4x4f ProjectionMatrix[XR_EYES_COUNT];
|
||||
} ovrSceneMatrices;
|
||||
|
||||
typedef struct ovrMatrix4f_ {
|
||||
float M[4][4];
|
||||
} ovrMatrix4f;
|
||||
|
||||
typedef struct {
|
||||
uint64_t frameIndex;
|
||||
ovrJava java;
|
||||
double predictedDisplayTime;
|
||||
//TODO:ovrTracking2 tracking;
|
||||
framebuffer_t framebuffers[2];
|
||||
ovrRenderer renderer;
|
||||
XrInstance instance;
|
||||
XrSession session;
|
||||
XrSystemId systemId;
|
||||
XrSpace stageSpace;
|
||||
GLboolean sessionActive;
|
||||
} engine_t;
|
||||
|
||||
typedef enum {
|
||||
|
|
|
|||
|
|
@ -84,9 +84,8 @@ int main(int argc, char* argv[]) {
|
|||
Com_Init(args);
|
||||
NET_Init( );
|
||||
|
||||
VR_InitRenderer(engine);
|
||||
|
||||
VR_EnterVR(engine, java);
|
||||
VR_InitRenderer(engine);
|
||||
|
||||
bool hasFocus = true;
|
||||
bool paused = false;
|
||||
|
|
|
|||
Loading…
Reference in New Issue