VkResult VKAPI_CALL vkAllocateCommandBuffers(
    VkDevice                                    device,
    const VkCommandBufferAllocateInfo*          pAllocateInfo,
    VkCommandBuffer*                            pCommandBuffers)
{
    dispatch_key key = get_dispatch_key(device);
    layer_data *my_data = get_my_data_ptr(key, layer_data_map);
    VkLayerDispatchTable *pTable = my_data->device_dispatch_table;
    VkResult result;
    startReadObject(my_data, device);
    startWriteObject(my_data, pAllocateInfo->commandPool);

    result = pTable->AllocateCommandBuffers(device, pAllocateInfo, pCommandBuffers);
    finishReadObject(my_data, device);
    finishWriteObject(my_data, pAllocateInfo->commandPool);

    // Record mapping from command buffer to command pool
    if (VK_SUCCESS == result) {
        for (int index=0;index<pAllocateInfo->commandBufferCount;index++) {
            loader_platform_thread_lock_mutex(&threadingLock);
            command_pool_map[pCommandBuffers[index]] = pAllocateInfo->commandPool;
            loader_platform_thread_unlock_mutex(&threadingLock);
        }
    }

    return result;
}
VKAPI_ATTR VkResult VKAPI_CALL
AllocateCommandBuffers(VkDevice device, const VkCommandBufferAllocateInfo *pAllocateInfo, VkCommandBuffer *pCommandBuffers) {
    dispatch_key key = get_dispatch_key(device);
    layer_data *my_data = get_my_data_ptr(key, layer_data_map);
    VkLayerDispatchTable *pTable = my_data->device_dispatch_table;
    VkResult result;
    startReadObject(my_data, device);
    startWriteObject(my_data, pAllocateInfo->commandPool);

    result = pTable->AllocateCommandBuffers(device, pAllocateInfo, pCommandBuffers);
    finishReadObject(my_data, device);
    finishWriteObject(my_data, pAllocateInfo->commandPool);

    // Record mapping from command buffer to command pool
    if (VK_SUCCESS == result) {
        for (uint32_t index = 0; index < pAllocateInfo->commandBufferCount; index++) {
            std::lock_guard<std::mutex> lock(global_lock);
            command_pool_map[pCommandBuffers[index]] = pAllocateInfo->commandPool;
        }
    }

    return result;
}
Exemple #3
0
// Save an image to a PPM image file.
//
// This function issues commands to copy/convert the swapchain image
// from whatever compatible format the swapchain image uses
// to a single format (VK_FORMAT_R8G8B8A8_UNORM) so that the converted
// result can be easily written to a PPM file.
//
// Error handling: If there is a problem, this function should silently
// fail without affecting the Present operation going on in the caller.
// The numerous debug asserts are to catch programming errors and are not
// expected to assert.  Recovery and clean up are implemented for image memory
// allocation failures.
// (TODO) It would be nice to pass any failure info to DebugReport or something.
static void writePPM(const char *filename, VkImage image1) {

    VkResult err;
    bool pass;

    // Bail immediately if we can't find the image.
    if (imageMap.empty() || imageMap.find(image1) == imageMap.end())
        return;

    // Collect object info from maps.  This info is generally recorded
    // by the other functions hooked in this layer.
    VkDevice device = imageMap[image1]->device;
    VkPhysicalDevice physicalDevice = deviceMap[device]->physicalDevice;
    VkInstance instance = physDeviceMap[physicalDevice]->instance;
    VkQueue queue = deviceMap[device]->queue;
    DeviceMapStruct *devMap = get_dev_info(device);
    if (NULL == devMap) {
        assert(0);
        return;
    }
    VkLayerDispatchTable *pTableDevice = devMap->device_dispatch_table;
    VkLayerDispatchTable *pTableQueue =
        get_dev_info(static_cast<VkDevice>(static_cast<void *>(queue)))
            ->device_dispatch_table;
    VkLayerInstanceDispatchTable *pInstanceTable;
    pInstanceTable = instance_dispatch_table(instance);

    // Gather incoming image info and check image format for compatibility with
    // the target format.
    // This function supports both 24-bit and 32-bit swapchain images.
    VkFormat const target32bitFormat = VK_FORMAT_R8G8B8A8_UNORM;
    VkFormat const target24bitFormat = VK_FORMAT_R8G8B8_UNORM;
    uint32_t const width = imageMap[image1]->imageExtent.width;
    uint32_t const height = imageMap[image1]->imageExtent.height;
    VkFormat const format = imageMap[image1]->format;
    uint32_t const numChannels = vk_format_get_channel_count(format);
    if ((vk_format_get_compatibility_class(target24bitFormat) !=
         vk_format_get_compatibility_class(format)) &&
        (vk_format_get_compatibility_class(target32bitFormat) !=
         vk_format_get_compatibility_class(format))) {
        assert(0);
        return;
    }
    if ((3 != numChannels) && (4 != numChannels)) {
        assert(0);
        return;
    }

    // General Approach
    //
    // The idea here is to copy/convert the swapchain image into another image
    // that can be mapped and read by the CPU to produce a PPM file.
    // The image must be untiled and converted to a specific format for easy
    // parsing.  The memory for the final image must be host-visible.
    // Note that in Vulkan, a BLIT operation must be used to perform a format
    // conversion.
    //
    // Devices vary in their ability to blit to/from linear and optimal tiling.
    // So we must query the device properties to get this information.
    //
    // If the device cannot BLIT to a LINEAR image, then the operation must be
    // done in two steps:
    // 1) BLIT the swapchain image (image1) to a temp image (image2) that is
    // created with TILING_OPTIMAL.
    // 2) COPY image2 to another temp image (image3) that is created with
    // TILING_LINEAR.
    // 3) Map image 3 and write the PPM file.
    //
    // If the device can BLIT to a LINEAR image, then:
    // 1) BLIT the swapchain image (image1) to a temp image (image2) that is
    // created with TILING_LINEAR.
    // 2) Map image 2 and write the PPM file.
    //
    // There seems to be no way to tell if the swapchain image (image1) is tiled
    // or not.  We therefore assume that the BLIT operation can always read from
    // both linear and optimal tiled (swapchain) images.
    // There is therefore no point in looking at the BLIT_SRC properties.
    //
    // There is also the optimization where the incoming and target formats are
    // the same.  In this case, just do a COPY.

    VkFormatProperties targetFormatProps;
    pInstanceTable->GetPhysicalDeviceFormatProperties(
        physicalDevice,
        (3 == numChannels) ? target24bitFormat : target32bitFormat,
        &targetFormatProps);
    bool need2steps = false;
    bool copyOnly = false;
    if ((target24bitFormat == format) || (target32bitFormat == format)) {
        copyOnly = true;
    } else {
        bool const bltLinear = targetFormatProps.linearTilingFeatures &
                                       VK_FORMAT_FEATURE_BLIT_DST_BIT
                                   ? true
                                   : false;
        bool const bltOptimal = targetFormatProps.optimalTilingFeatures &
                                        VK_FORMAT_FEATURE_BLIT_DST_BIT
                                    ? true
                                    : false;
        if (!bltLinear && !bltOptimal) {
            // Cannot blit to either target tiling type.  It should be pretty
            // unlikely to have a device that cannot blit to either type.
            // But punt by just doing a copy and possibly have the wrong
            // colors.  This should be quite rare.
            copyOnly = true;
        } else if (!bltLinear && bltOptimal) {
            // Cannot blit to a linear target but can blt to optimal, so copy
            // after blit is needed.
            need2steps = true;
        }
        // Else bltLinear is available and only 1 step is needed.
    }

    // Put resources that need to be cleaned up in a struct with a destructor
    // so that things get cleaned up when this function is exited.
    WritePPMCleanupData data = {};
    data.device = device;
    data.pTableDevice = pTableDevice;

    // Set up the image creation info for both the blit and copy images, in case
    // both are needed.
    VkImageCreateInfo imgCreateInfo2 = {
        VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
        NULL,
        0,
        VK_IMAGE_TYPE_2D,
        VK_FORMAT_R8G8B8A8_UNORM,
        {width, height, 1},
        1,
        1,
        VK_SAMPLE_COUNT_1_BIT,
        VK_IMAGE_TILING_LINEAR,
        VK_IMAGE_USAGE_TRANSFER_DST_BIT,
        VK_SHARING_MODE_EXCLUSIVE,
        0,
        NULL,
        VK_IMAGE_LAYOUT_UNDEFINED,
    };
    VkImageCreateInfo imgCreateInfo3 = imgCreateInfo2;

    // If we need both images, set up image2 to be read/write and tiled.
    if (need2steps) {
        imgCreateInfo2.tiling = VK_IMAGE_TILING_OPTIMAL;
        imgCreateInfo2.usage =
            VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
    }

    VkMemoryAllocateInfo memAllocInfo = {
        VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, NULL,
        0, // allocationSize, queried later
        0  // memoryTypeIndex, queried later
    };
    VkMemoryRequirements memRequirements;
    VkPhysicalDeviceMemoryProperties memoryProperties;

    // Create image2 and allocate its memory.  It could be the intermediate or
    // final image.
    err =
        pTableDevice->CreateImage(device, &imgCreateInfo2, NULL, &data.image2);
    assert(!err);
    if (VK_SUCCESS != err)
        return;
    pTableDevice->GetImageMemoryRequirements(device, data.image2,
                                             &memRequirements);
    memAllocInfo.allocationSize = memRequirements.size;
    pInstanceTable->GetPhysicalDeviceMemoryProperties(physicalDevice,
                                                      &memoryProperties);
    pass = memory_type_from_properties(
        &memoryProperties, memRequirements.memoryTypeBits,
        need2steps ? VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
                   : VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
        &memAllocInfo.memoryTypeIndex);
    assert(pass);
    err = pTableDevice->AllocateMemory(device, &memAllocInfo, NULL, &data.mem2);
    assert(!err);
    if (VK_SUCCESS != err)
        return;
    err = pTableQueue->BindImageMemory(device, data.image2, data.mem2, 0);
    assert(!err);
    if (VK_SUCCESS != err)
        return;

    // Create image3 and allocate its memory, if needed.
    if (need2steps) {
        err = pTableDevice->CreateImage(device, &imgCreateInfo3, NULL,
                                        &data.image3);
        assert(!err);
        if (VK_SUCCESS != err)
            return;
        pTableDevice->GetImageMemoryRequirements(device, data.image3,
                                                 &memRequirements);
        memAllocInfo.allocationSize = memRequirements.size;
        pInstanceTable->GetPhysicalDeviceMemoryProperties(physicalDevice,
                                                          &memoryProperties);
        pass = memory_type_from_properties(
            &memoryProperties, memRequirements.memoryTypeBits,
            VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &memAllocInfo.memoryTypeIndex);
        assert(pass);
        err = pTableDevice->AllocateMemory(device, &memAllocInfo, NULL,
                                           &data.mem3);
        assert(!err);
        if (VK_SUCCESS != err)
            return;
        err = pTableQueue->BindImageMemory(device, data.image3, data.mem3, 0);
        assert(!err);
        if (VK_SUCCESS != err)
            return;
    }

    // Set up the command buffer.  We get a command buffer from a pool we saved
    // in a hooked function, which would be the application's pool.
    const VkCommandBufferAllocateInfo allocCommandBufferInfo = {
        VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, NULL,
        deviceMap[device]->commandPool, VK_COMMAND_BUFFER_LEVEL_PRIMARY, 1};
    data.commandPool = deviceMap[device]->commandPool;
    err = pTableDevice->AllocateCommandBuffers(device, &allocCommandBufferInfo,
                                               &data.commandBuffer);
    assert(!err);
    if (VK_SUCCESS != err)
        return;

    VkDevice cmdBuf =
        static_cast<VkDevice>(static_cast<void *>(data.commandBuffer));
    deviceMap.emplace(cmdBuf, devMap);
    VkLayerDispatchTable *pTableCommandBuffer;
    pTableCommandBuffer = get_dev_info(cmdBuf)->device_dispatch_table;

    // We have just created a dispatchable object, but the dispatch table has
    // not been placed in the object yet.  When a "normal" application creates
    // a command buffer, the dispatch table is installed by the top-level api
    // binding (trampoline.c). But here, we have to do it ourselves.
    if (!devMap->pfn_dev_init) {
        *((const void **)data.commandBuffer) = *(void **)device;
    } else {
        err = devMap->pfn_dev_init(device, (void *)data.commandBuffer);
        assert(!err);
    }

    const VkCommandBufferBeginInfo commandBufferBeginInfo = {
        VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, NULL,
        VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
    };
    err = pTableCommandBuffer->BeginCommandBuffer(data.commandBuffer,
                                                  &commandBufferBeginInfo);
    assert(!err);

    // This barrier is used to transition from/to present Layout
    VkImageMemoryBarrier presentMemoryBarrier = {
        VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
        NULL,
        VK_ACCESS_TRANSFER_WRITE_BIT,
        VK_ACCESS_TRANSFER_READ_BIT,
        VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
        VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
        VK_QUEUE_FAMILY_IGNORED,
        VK_QUEUE_FAMILY_IGNORED,
        image1,
        {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}};

    // This barrier is used to transition from a newly-created layout to a blt
    // or copy destination layout.
    VkImageMemoryBarrier destMemoryBarrier = {
        VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
        NULL,
        0,
        VK_ACCESS_TRANSFER_WRITE_BIT,
        VK_IMAGE_LAYOUT_UNDEFINED,
        VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
        VK_QUEUE_FAMILY_IGNORED,
        VK_QUEUE_FAMILY_IGNORED,
        data.image2,
        {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}};

    // This barrier is used to transition a dest layout to general layout.
    VkImageMemoryBarrier generalMemoryBarrier = {
        VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
        NULL,
        VK_ACCESS_TRANSFER_WRITE_BIT,
        VK_ACCESS_TRANSFER_READ_BIT,
        VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
        VK_IMAGE_LAYOUT_GENERAL,
        VK_QUEUE_FAMILY_IGNORED,
        VK_QUEUE_FAMILY_IGNORED,
        data.image2,
        {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1}};

    VkPipelineStageFlags srcStages = VK_PIPELINE_STAGE_TRANSFER_BIT;
    VkPipelineStageFlags dstStages = VK_PIPELINE_STAGE_TRANSFER_BIT;

    // The source image needs to be transitioned from present to transfer
    // source.
    pTableCommandBuffer->CmdPipelineBarrier(data.commandBuffer, srcStages,
                                            dstStages, 0, 0, NULL, 0, NULL, 1,
                                            &presentMemoryBarrier);

    // image2 needs to be transitioned from its undefined state to transfer
    // destination.
    pTableCommandBuffer->CmdPipelineBarrier(data.commandBuffer, srcStages,
                                            dstStages, 0, 0, NULL, 0, NULL, 1,
                                            &destMemoryBarrier);

    const VkImageCopy imageCopyRegion = {{VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1},
                                         {0, 0, 0},
                                         {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1},
                                         {0, 0, 0},
                                         {width, height, 1}};

    if (copyOnly) {
        pTableCommandBuffer->CmdCopyImage(
            data.commandBuffer, image1, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
            data.image2, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1,
            &imageCopyRegion);
    } else {
        VkImageBlit imageBlitRegion = {};
        imageBlitRegion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
        imageBlitRegion.srcSubresource.baseArrayLayer = 0;
        imageBlitRegion.srcSubresource.layerCount = 1;
        imageBlitRegion.srcSubresource.mipLevel = 0;
        imageBlitRegion.srcOffsets[1].x = width;
        imageBlitRegion.srcOffsets[1].y = height;
        imageBlitRegion.srcOffsets[1].z = 1;
        imageBlitRegion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
        imageBlitRegion.dstSubresource.baseArrayLayer = 0;
        imageBlitRegion.dstSubresource.layerCount = 1;
        imageBlitRegion.dstSubresource.mipLevel = 0;
        imageBlitRegion.dstOffsets[1].x = width;
        imageBlitRegion.dstOffsets[1].y = height;
        imageBlitRegion.dstOffsets[1].z = 1;

        pTableCommandBuffer->CmdBlitImage(
            data.commandBuffer, image1, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
            data.image2, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1,
            &imageBlitRegion, VK_FILTER_NEAREST);
        if (need2steps) {
            // image 3 needs to be transitioned from its undefined state to a
            // transfer destination.
            destMemoryBarrier.image = data.image3;
            pTableCommandBuffer->CmdPipelineBarrier(
                data.commandBuffer, srcStages, dstStages, 0, 0, NULL, 0, NULL,
                1, &destMemoryBarrier);

            // Transition image2 so that it can be read for the upcoming copy to
            // image 3.
            destMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
            destMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
            destMemoryBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
            destMemoryBarrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
            destMemoryBarrier.image = data.image2;
            pTableCommandBuffer->CmdPipelineBarrier(
                data.commandBuffer, srcStages, dstStages, 0, 0, NULL, 0, NULL,
                1, &destMemoryBarrier);

            // This step essentially untiles the image.
            pTableCommandBuffer->CmdCopyImage(
                data.commandBuffer, data.image2,
                VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, data.image3,
                VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &imageCopyRegion);
            generalMemoryBarrier.image = data.image3;
        }
    }

    // The destination needs to be transitioned from the optimal copy format to
    // the format we can read with the CPU.
    pTableCommandBuffer->CmdPipelineBarrier(data.commandBuffer, srcStages,
                                            dstStages, 0, 0, NULL, 0, NULL, 1,
                                            &generalMemoryBarrier);

    // Restore the swap chain image layout to what it was before.
    // This may not be strictly needed, but it is generally good to restore
    // things to original state.
    presentMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
    presentMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
    presentMemoryBarrier.srcAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
    presentMemoryBarrier.dstAccessMask = 0;
    pTableCommandBuffer->CmdPipelineBarrier(data.commandBuffer, srcStages,
                                            dstStages, 0, 0, NULL, 0, NULL, 1,
                                            &presentMemoryBarrier);

    err = pTableCommandBuffer->EndCommandBuffer(data.commandBuffer);
    assert(!err);

    VkFence nullFence = {VK_NULL_HANDLE};
    VkSubmitInfo submitInfo;
    submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
    submitInfo.pNext = NULL;
    submitInfo.waitSemaphoreCount = 0;
    submitInfo.pWaitSemaphores = NULL;
    submitInfo.pWaitDstStageMask = NULL;
    submitInfo.commandBufferCount = 1;
    submitInfo.pCommandBuffers = &data.commandBuffer;
    submitInfo.signalSemaphoreCount = 0;
    submitInfo.pSignalSemaphores = NULL;

    err = pTableQueue->QueueSubmit(queue, 1, &submitInfo, nullFence);
    assert(!err);

    err = pTableQueue->QueueWaitIdle(queue);
    assert(!err);

    err = pTableDevice->DeviceWaitIdle(device);
    assert(!err);

    // Map the final image so that the CPU can read it.
    const VkImageSubresource sr = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0};
    VkSubresourceLayout srLayout;
    const char *ptr;
    if (!need2steps) {
        pTableDevice->GetImageSubresourceLayout(device, data.image2, &sr,
                                                &srLayout);
        err = pTableDevice->MapMemory(device, data.mem2, 0, VK_WHOLE_SIZE, 0,
                                      (void **)&ptr);
        assert(!err);
        if (VK_SUCCESS != err)
            return;
        data.mem2mapped = true;
    } else {
        pTableDevice->GetImageSubresourceLayout(device, data.image3, &sr,
                                                &srLayout);
        err = pTableDevice->MapMemory(device, data.mem3, 0, VK_WHOLE_SIZE, 0,
                                      (void **)&ptr);
        assert(!err);
        if (VK_SUCCESS != err)
            return;
        data.mem3mapped = true;
    }

    // Write the data to a PPM file.
    ofstream file(filename, ios::binary);
    file << "P6\n";
    file << width << "\n";
    file << height << "\n";
    file << 255 << "\n";

    ptr += srLayout.offset;
    if (3 == numChannels) {
        for (uint32_t y = 0; y < height; y++) {
            file.write(ptr, 3 * width);
            ptr += srLayout.rowPitch;
        }
    } else if (4 == numChannels) {
        for (uint32_t y = 0; y < height; y++) {
            const unsigned int *row = (const unsigned int *)ptr;
            for (uint32_t x = 0; x < width; x++) {
                file.write((char *)row, 3);
                row++;
            }
            ptr += srLayout.rowPitch;
        }
    }
    file.close();

    // Clean up handled by ~WritePPMCleanupData()
}
Exemple #4
0
VK_LAYER_EXPORT VKAPI_ATTR VkResult VKAPI_CALL vkGetSwapchainImagesKHR(VkDevice device, VkSwapchainKHR swapChain, uint32_t *pCount,
                                                                       VkImage *pImages) {
    layer_data *my_data = GetLayerDataPtr(get_dispatch_key(device), layer_data_map);
    VkLayerDispatchTable *pTable = my_data->device_dispatch_table;
    VkResult result = my_data->pfnGetSwapchainImagesKHR(device, swapChain, pCount, pImages);
    VkResult U_ASSERT_ONLY err;

    /* GetSwapChainImagesWSI may be called without an images buffer, in which
     * case it
     * just returns the count to the caller. We're only interested in acting on
     * the
     * /actual/ fetch of the images.
     */
    if (pImages) {
        auto data = (*my_data->swapChains)[swapChain];

        for (uint32_t i = 0; i < *pCount; i++) {
            /* Create attachment view for each */
            VkImageViewCreateInfo ivci;
            ivci.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
            ivci.viewType = VK_IMAGE_VIEW_TYPE_2D;
            ivci.pNext = nullptr;
            ivci.format = data->format;
            ivci.components.r = VK_COMPONENT_SWIZZLE_R;
            ivci.components.g = VK_COMPONENT_SWIZZLE_G;
            ivci.components.b = VK_COMPONENT_SWIZZLE_B;
            ivci.components.a = VK_COMPONENT_SWIZZLE_A;
            ivci.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
            ivci.subresourceRange.baseMipLevel = 0;
            ivci.subresourceRange.levelCount = 1;
            ivci.subresourceRange.baseArrayLayer = 0;
            ivci.subresourceRange.layerCount = 1;
            ivci.image = pImages[i];
            ivci.flags = 0;

            VkImageView v;
            pTable->CreateImageView(device, &ivci, nullptr, &v);

            /* Create framebuffer for each */
            VkFramebufferCreateInfo fci;
            fci.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
            fci.pNext = nullptr;
            fci.flags = 0;
            fci.renderPass = data->render_pass;
            fci.attachmentCount = 1;
            fci.pAttachments = &v;
            fci.width = data->width;
            fci.height = data->height;
            fci.layers = 1;

            VkFramebuffer fb;
            pTable->CreateFramebuffer(device, &fci, nullptr, &fb);

            /* Create command buffer for each */
            VkCommandBufferAllocateInfo cbai;
            cbai.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
            cbai.pNext = nullptr;
            cbai.commandPool = my_data->pool;
            cbai.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
            cbai.commandBufferCount = 1;

            VkCommandBuffer cmd;
            pTable->AllocateCommandBuffers(device, &cbai, &cmd);

            /* We have just created a dispatchable object, but the dispatch
             * table has not been placed in the object yet.
             * When a "normal" application creates a command buffer,
             * the dispatch table is installed by the top-level binding
             * (trampoline.c).
             * But here, we have to do it ourselves. */

            if (!my_data->pfn_dev_init) {
                *((const void **)cmd) = *(void **)device;
            } else {
                err = my_data->pfn_dev_init(device, (void *)cmd);
                assert(!err);
            }

            /* Create vertex buffer */
            VkBufferCreateInfo bci;
            memset(&bci, 0, sizeof(bci));
            bci.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
            bci.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
            bci.size = sizeof(vertex) * MAX_TEXT_VERTICES;

            VkBuffer buf;
            err = pTable->CreateBuffer(device, &bci, nullptr, &buf);
            assert(!err);

            VkMemoryRequirements mem_reqs;
            pTable->GetBufferMemoryRequirements(device, buf, &mem_reqs);
            assert(!err);

            VkMemoryAllocateInfo mem_alloc;
            memset(&mem_alloc, 0, sizeof(mem_alloc));
            mem_alloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
            mem_alloc.allocationSize = mem_reqs.size;
            mem_alloc.memoryTypeIndex = choose_memory_type(
                my_data->gpu, mem_reqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);

            VkDeviceMemory mem;
            err = pTable->AllocateMemory(device, &mem_alloc, nullptr, &mem);
            assert(!err);

            err = pTable->BindBufferMemory(device, buf, mem, 0);
            assert(!err);

            auto imageData = new WsiImageData;
            imageData->image = pImages[i];
            imageData->view = v;
            imageData->framebuffer = fb;
            imageData->cmd = cmd;
            imageData->vertexBuffer = buf;
            imageData->vertexBufferMemory = mem;
            imageData->numVertices = 0;
            imageData->vertexBufferSize = mem_alloc.allocationSize;

            data->presentableImages.push_back(imageData);
        }
    }
    return result;
}
Exemple #5
0
static void after_device_create(VkPhysicalDevice gpu, VkDevice device, layer_data *data) {
    VkResult U_ASSERT_ONLY err;

    data->gpu = gpu;
    data->dev = device;
    data->frame = 0;
    data->cmdBuffersThisFrame = 0;

    VkLayerDispatchTable *pTable = data->device_dispatch_table;

    /* Get our WSI hooks in. */
    data->pfnCreateSwapchainKHR = (PFN_vkCreateSwapchainKHR)pTable->GetDeviceProcAddr(device, "vkCreateSwapchainKHR");
    data->pfnGetSwapchainImagesKHR = (PFN_vkGetSwapchainImagesKHR)pTable->GetDeviceProcAddr(device, "vkGetSwapchainImagesKHR");
    data->pfnQueuePresentKHR = (PFN_vkQueuePresentKHR)pTable->GetDeviceProcAddr(device, "vkQueuePresentKHR");
    data->pfnDestroySwapchainKHR = (PFN_vkDestroySwapchainKHR)pTable->GetDeviceProcAddr(device, "vkDestroySwapchainKHR");
    data->swapChains = new std::unordered_map<VkSwapchainKHR, SwapChainData *>;

    /* Command pool */
    VkCommandPoolCreateInfo cpci;
    cpci.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
    cpci.pNext = nullptr;
    cpci.queueFamilyIndex = data->graphicsQueueFamilyIndex;
    cpci.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
    err = pTable->CreateCommandPool(device, &cpci, nullptr, &data->pool);
    assert(!err);

    /* Create the objects we need */

    /* Compile the shaders */
    compile_shader(device, VULKAN_SAMPLES_BASE_DIR "/Layer-Samples/data/overlay-vert.spv", &data->vsShaderModule);
    compile_shader(device, VULKAN_SAMPLES_BASE_DIR "/Layer-Samples/data/overlay-frag.spv", &data->fsShaderModule);

    /* Upload the font bitmap */
    VkImageCreateInfo ici;
    memset(&ici, 0, sizeof(ici));
    ici.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
    ici.imageType = VK_IMAGE_TYPE_2D;
    ici.format = VK_FORMAT_R8_UNORM;
    ici.extent.width = FONT_ATLAS_SIZE;
    ici.extent.height = FONT_ATLAS_SIZE;
    ici.extent.depth = 1;
    ici.mipLevels = 1;
    ici.arrayLayers = 1;
    ici.samples = VK_SAMPLE_COUNT_1_BIT;
    ici.tiling = VK_IMAGE_TILING_LINEAR;
    ici.usage = VK_IMAGE_USAGE_SAMPLED_BIT;
    ici.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;

    err = pTable->CreateImage(device, &ici, nullptr, &data->fontGlyphsImage);
    assert(!err);

    VkMemoryRequirements mem_reqs;
    pTable->GetImageMemoryRequirements(device, data->fontGlyphsImage, &mem_reqs);

    VkMemoryAllocateInfo mem_alloc;
    memset(&mem_alloc, 0, sizeof(mem_alloc));
    mem_alloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
    mem_alloc.allocationSize = mem_reqs.size;
    mem_alloc.memoryTypeIndex = choose_memory_type(gpu, mem_reqs.memoryTypeBits,
                                                   VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);

    err = pTable->AllocateMemory(device, &mem_alloc, nullptr, &data->fontGlyphsMemory);
    assert(!err);
    err = pTable->BindImageMemory(device, data->fontGlyphsImage, data->fontGlyphsMemory, 0);
    assert(!err);

    VkImageSubresource subres;
    subres.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
    subres.mipLevel = 0;
    subres.arrayLayer = 0;
    VkSubresourceLayout layout;
    void *bits;

    pTable->GetImageSubresourceLayout(device, data->fontGlyphsImage, &subres, &layout);

    /* ensure we can directly upload into this layout */
    assert(!layout.offset);
    assert(layout.size >= FONT_ATLAS_SIZE * FONT_ATLAS_SIZE);
    assert(layout.rowPitch == FONT_ATLAS_SIZE);

    err = pTable->MapMemory(device, data->fontGlyphsMemory, 0, VK_WHOLE_SIZE, 0, &bits);
    assert(!err);

    /* Load the font glyphs directly into the mapped buffer */
    std::vector<unsigned char> fontData;
    get_file_contents(VULKAN_SAMPLES_BASE_DIR "/Layer-Samples/data/FreeSans.ttf", fontData);
    stbtt_BakeFontBitmap(&fontData[0], 0, FONT_SIZE_PIXELS, (unsigned char *)bits, FONT_ATLAS_SIZE, FONT_ATLAS_SIZE, 32, 96,
                         data->glyphs);

    pTable->UnmapMemory(device, data->fontGlyphsMemory);

    VkImageViewCreateInfo ivci;
    ivci.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
    ivci.viewType = VK_IMAGE_VIEW_TYPE_2D;
    ivci.pNext = nullptr;
    ivci.format = ici.format;
    ivci.components.r = VK_COMPONENT_SWIZZLE_R;
    ivci.components.g = VK_COMPONENT_SWIZZLE_G;
    ivci.components.b = VK_COMPONENT_SWIZZLE_B;
    ivci.components.a = VK_COMPONENT_SWIZZLE_A;
    ivci.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
    ivci.subresourceRange.baseMipLevel = 0;
    ivci.subresourceRange.levelCount = 1;
    ivci.subresourceRange.baseArrayLayer = 0;
    ivci.subresourceRange.layerCount = 1;
    ivci.image = data->fontGlyphsImage;
    ivci.flags = 0;

    err = pTable->CreateImageView(device, &ivci, nullptr, &data->fontGlyphsImageView);
    assert(!err);

    /* transition from undefined layout to shader readonly so we can use it.
     * requires a command buffer. */
    VkCommandBufferAllocateInfo cbai;
    cbai.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
    cbai.pNext = nullptr;
    cbai.commandPool = data->pool;
    cbai.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
    cbai.commandBufferCount = 1;

    VkCommandBuffer cmd;
    err = pTable->AllocateCommandBuffers(device, &cbai, &cmd);
    assert(!err);

    /* We have just created a dispatchable object, but the dispatch table has
     * not been placed in the object yet.
     * When a "normal" application creates a command buffer,
     * the dispatch table is installed by the top-level binding (trampoline.c).
     * But here, we have to do it ourselves. */
    if (!data->pfn_dev_init) {
        *((const void **)cmd) = *(void **)device;
    } else {
        err = data->pfn_dev_init(device, (void *)cmd);
        assert(!err);
    }

    VkCommandBufferBeginInfo cbbi;
    cbbi.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
    cbbi.pNext = nullptr;
    cbbi.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT;
    cbbi.pInheritanceInfo = nullptr;

    err = pTable->BeginCommandBuffer(cmd, &cbbi);
    assert(!err);

    VkImageMemoryBarrier imb;
    imb.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
    imb.pNext = nullptr;
    imb.dstAccessMask = VK_ACCESS_HOST_WRITE_BIT | VK_ACCESS_TRANSFER_WRITE_BIT;
    imb.srcAccessMask = 0;
    imb.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
    imb.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
    imb.image = data->fontGlyphsImage;
    imb.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
    imb.subresourceRange.baseMipLevel = 0;
    imb.subresourceRange.levelCount = 1;
    imb.subresourceRange.baseArrayLayer = 0;
    imb.subresourceRange.layerCount = 1;
    imb.srcQueueFamilyIndex = data->graphicsQueueFamilyIndex;
    imb.dstQueueFamilyIndex = data->graphicsQueueFamilyIndex;

    pTable->CmdPipelineBarrier(cmd, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, 0 /* dependency flags */,
                               0, nullptr, /* memory barriers */
                               0, nullptr, /* buffer memory barriers */
                               1, &imb);   /* image memory barriers */

    pTable->EndCommandBuffer(cmd);
    data->fontUploadCmdBuffer = cmd;
    data->fontUploadComplete = false; /* we will schedule this at first present on this device */

#ifdef OVERLAY_DEBUG
    printf("Font upload done.\n");
#endif

    /* create a sampler to use with the texture */
    VkSamplerCreateInfo sci;
    sci.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
    sci.pNext = nullptr;
    sci.flags = 0;
    sci.magFilter = VK_FILTER_NEAREST;
    sci.minFilter = VK_FILTER_NEAREST;
    sci.mipmapMode = VK_SAMPLER_MIPMAP_MODE_NEAREST;
    sci.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
    sci.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
    sci.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
    sci.mipLodBias = 0.0f;
    sci.anisotropyEnable = false;
    sci.maxAnisotropy = 1;
    sci.compareEnable = false;
    sci.compareOp = VK_COMPARE_OP_NEVER;
    sci.minLod = 0.0f;
    sci.maxLod = 0.0f;
    sci.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
    sci.unnormalizedCoordinates = VK_FALSE;

    err = pTable->CreateSampler(device, &sci, nullptr, &data->sampler);
    assert(!err);

    /* descriptor set stuff so we can use the texture from a shader. */
    VkDescriptorSetLayoutBinding dslb[1];
    dslb[0].binding = 0;
    dslb[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
    dslb[0].descriptorCount = 1;
    dslb[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
    dslb[0].pImmutableSamplers = nullptr;

    VkDescriptorSetLayoutCreateInfo dslci;
    memset(&dslci, 0, sizeof(dslci));
    dslci.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
    dslci.pNext = nullptr;
    dslci.bindingCount = 1;
    dslci.pBindings = dslb;

    err = pTable->CreateDescriptorSetLayout(device, &dslci, nullptr, &data->dsl);
    assert(!err);

    VkPipelineLayoutCreateInfo plci;
    memset(&plci, 0, sizeof(plci));
    plci.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
    plci.setLayoutCount = 1;
    plci.pSetLayouts = &data->dsl;

    err = pTable->CreatePipelineLayout(device, &plci, nullptr, &data->pl);
    assert(!err);

    VkDescriptorPoolSize dtc[1];
    dtc[0].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
    dtc[0].descriptorCount = 1;
    VkDescriptorPoolCreateInfo dpci;
    dpci.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
    dpci.pNext = nullptr;
    dpci.flags = 0;
    dpci.maxSets = 1;
    dpci.poolSizeCount = 1;
    dpci.pPoolSizes = dtc;

    err = pTable->CreateDescriptorPool(device, &dpci, nullptr, &data->desc_pool);
    assert(!err);

    VkDescriptorSetAllocateInfo dsai;
    dsai.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
    dsai.pNext = nullptr;
    dsai.descriptorPool = data->desc_pool;
    dsai.descriptorSetCount = 1;
    dsai.pSetLayouts = &data->dsl;
    err = pTable->AllocateDescriptorSets(device, &dsai, &data->desc_set);
    assert(!err);

    VkDescriptorImageInfo descs[1];
    descs[0].sampler = data->sampler;
    descs[0].imageView = data->fontGlyphsImageView;
    descs[0].imageLayout = VK_IMAGE_LAYOUT_GENERAL;  // TODO: cube does this, is it correct?

    VkWriteDescriptorSet writes[1];
    memset(&writes, 0, sizeof(writes));
    writes[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
    writes[0].dstSet = data->desc_set;
    writes[0].dstBinding = 0;
    writes[0].descriptorCount = 1;
    writes[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
    writes[0].pImageInfo = descs;

    pTable->UpdateDescriptorSets(device, 1, writes, 0, nullptr);

    VkFenceCreateInfo fci;
    fci.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
    fci.pNext = NULL;
    fci.flags = VK_FENCE_CREATE_SIGNALED_BIT;
    pTable->CreateFence(device, &fci, NULL, &data->fence);
}