still not done
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zap8600
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@ -117,6 +117,18 @@ typedef struct {
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XrViewConfigurationView* viewconfig_views;
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XrSwapchain* swapchains;
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uint32_t* swapchain_lengths;
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XrSwapchainImageOpenGLKHR** images;
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unsigned int fbo;
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XrView* views;
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XrCompositionLayerProjectionView* projection_views;
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XrCompositionLayerProjection layer_projection;
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#if defined(_WIN32)
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XrGraphicsBindingOpenGLWin32KHR graphics_binding_gl;
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#else
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@ -1598,6 +1610,8 @@ int InitPlatform(void)
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platform.form_factor = XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY;
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platform.play_space_type = XR_REFERENCE_SPACE_TYPE_STAGE;
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platform.layer_projection = { .type = XR_TYPE_COMPOSITION_LAYER_PROJECTION };
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uint32_t ext_count = 0;
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result = xrEnumerateInstanceExtensionProperties(NULL, 0, &ext_count, NULL);
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if (XR_FAILED(result)) {
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@ -1716,6 +1730,143 @@ int InitPlatform(void)
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return -1;
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}
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#if defined(_WIN32)
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platform.graphics_binding_gl = (XrGraphicsBindingOpenGLWin32KHR){
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.type = XR_TYPE_GRAPHICS_BINDING_OPENGL_WIN32_KHR,
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.next = NULL,
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.hDC = wglGetCurrentDC(),
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.hGLRC = wglGetCurrentContext()
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};
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#else
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// TODO: Figure out if this works without the rest of the data
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platform.graphics_binding_gl = (XrGraphicsBindingOpenGLXlibKHR){
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.type = XR_TYPE_GRAPHICS_BINDING_OPENGL_XLIB_KHR,
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.next = NULL,
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};
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#endif
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XrSessionCreateInfo session_create_info = {
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.type = XR_TYPE_SESSION_CREATE_INFO,
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.next = &(platform.graphics_binding_gl),
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.systemId = platform.system_id
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};
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result = xrCreateSession(platform.instance, &session_create_info, &(platform.session));
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if (XR_FAILED(result)) {
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TRACELOG(LOG_FATAL, "Failed to session\n");
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return -1;
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}
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XrPosef identity_pose = {
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.orientation = {.x = 0, .y = 0, .z = 0, .w = 1.0},
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.position = {.x = 0, .y = 0, .z = 0}
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};
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XrReferenceSpaceCreateInfo play_space_create_info = {
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.type = XR_TYPE_REFERENCE_SPACE_CREATE_INFO,
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.next = NULL,
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.referenceSpaceType = platform.play_space_type,
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.poseInReferenceSpace = identity_pose
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};
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result = xrCreateReferenceSpace(platform.session, &play_space_create_info, &(platform.play_space));
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if (XR_FAILED(result)) {
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TRACELOG(LOG_FATAL, "Failed to create play space\n");
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return -1;
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}
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XrReferenceSpaceCreateInfo view_space_create_info = {
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.type = XR_TYPE_REFERENCE_SPACE_CREATE_INFO,
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.next = NULL,
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.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_VIEW,
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.poseInReferenceSpace = identity_pose
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};
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result = xrCreateReferenceSpace(platform.session, &view_space_create_info, &(platform.view_space));
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if (XR_FAILED(result)) {
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TRACELOG(LOG_FATAL, "Failed to create view space\n");
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return -1;
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}
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uint32_t supported_gl_internal_format_count;
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result = xrEnumerateSwapchainFormats(platform.session, 0, &supported_gl_internal_format_count, NULL);
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if (XR_FAILED(result)) {
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TRACELOG(LOG_FATAL, "Failed to get number of supported swapchain formats\n");
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return -1;
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}
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int64_t swapchain_formats[swapchain_format_count];
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result = xrEnumerateSwapchainFormats(platform.session, supported_gl_internal_format_count, &supported_gl_internal_format_count, supported_gl_internal_formats);
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if (XR_FAILED(result)) {
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TRACELOG(LOG_FATAL, "Failed to enumerate swapchain formats\n");
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return -1;
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}
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uint32_t swapchain_width = 0;
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for (uint32_t i = 0; i < view_count; i++) {
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swapchain_width += platform.viewconfig_views[i].recommendedImageRectWidth;
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}
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platform.fbo = rlLoadFramebuffer(swapchain_width, platform.viewconfig_views[0].recommendedImageRectHeight);
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int64_t color_gl_internal_format = GL_SRGB8_ALPHA8_EXT;
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platform.swapchains = malloc(sizeof(XrSwapchain) * view_count);
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platform.swapchain_lengths = = malloc(sizeof(uint32_t) * view_count);
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platform.images = malloc(sizeof(XrSwapchainImageOpenGLKHR*) * view_count);
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XrSwapchainCreateInfo swapchain_create_info = {
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.type = XR_TYPE_SWAPCHAIN_CREATE_INFO,
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.next = NULL,
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.createFlags = 0,
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.usageFlags = XR_SWAPCHAIN_USAGE_SAMPLED_BIT | XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT,
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.format = color_gl_internal_format,
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.sampleCount = platform.viewconfig_views[0].recommendedSwapchainSampleCount,
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.width = swapchain_width,
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.height = platform.viewconfig_views[0].recommendedImageRectHeight,
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.faceCount = 1,
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.arraySize = 1,
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.mipCount = 1
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};
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result = xrCreateSwapchain(platform.session, &swapchain_create_info, &(platform.swapchains[0]));
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if (XR_FAILED(result)) {
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TRACELOG(LOG_FATAL, "Failed to create swapchain!\n");
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return -1;
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}
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result = xrEnumerateSwapchainImages(platform.swapchains[0], 0, &(platform.swapchain_lengths[0]), NULL);
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if (XR_FAILED(result)) {
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TRACELOG(LOG_FATAL, "Failed to enumerate swapchains\n");
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return -1;
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}
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platform.images[0] = malloc(sizeof(XrSwapchainImageOpenGLKHR) * platform.swapchain_lengths[0]);
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for (uint32_t j = 0; j < swapchain_lengths[i]; j++) {
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platform.images[0][j].type = XR_TYPE_SWAPCHAIN_IMAGE_OPENGL_KHR;
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platform.images[0][j].next = NULL;
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}
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result = xrEnumerateSwapchainImages(platform.swapchains[0], platform.swapchain_lengths[0], &(platform.swapchain_lengths[0]), (XrSwapchainImageBaseHeader*)(platform.images[0]));
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if (XR_FAILED(result)) {
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TRACELOG(LOG_FATAL, "Failed to enumerate swapchains\n");
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return -1;
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}
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platform.views = (XrView*)malloc(sizeof(XrView) * view_count);
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platform.projection_views = (XrCompositionLayerProjectionView*)malloc(sizeof(XrCompositionLayerProjectionView) * view_count);
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for (uint32_t i = 0; i < view_count; i++) {
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platform.projection_views[0].type = XR_TYPE_COMPOSITION_LAYER_PROJECTION_VIEW;
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platform.projection_views[0].next = NULL;
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platform.projection_views[0].subImage.swapchain = platform.swapchains[0];
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platform.projection_views[0].subImage.imageArrayIndex = 0;
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platform.projection_views[0].subImage.imageRect.offset.x = i * platform.viewconfig_views[i].recommendedImageRectWidth;
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platform.projection_views[0].subImage.imageRect.offset.y = 0;
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platform.projection_views[0].subImage.imageRect.extent.width = i * platform.viewconfig_views[i].recommendedImageRectWidth;
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platform.projection_views[0].subImage.imageRect.extent.height = i * platform.viewconfig_views[i].recommendedImageRectHeight;
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}
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return 0;
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}
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