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authorLionel Landwerlin <lionel.g.landwerlin@intel.com>2019-01-19 21:26:12 +0000
committerLionel Landwerlin <lionel.g.landwerlin@intel.com>2019-02-21 18:06:05 +0000
commit20c370c6b16282424f3a2fc3166132c1ed82863a (patch)
tree29021496e3db605ce6dd4816f70794040598adb1
parent89f03d187251fa46264218ccedb90e2ae2ea1d93 (diff)
vulkan: add an overlay layer
Just a starting point to display frame timings & drawcalls/submissions per frame. Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Acked-by: Jason Ekstrand <jason@jlekstrand.net> +1-by: Mike Lothian <mike@fireburn.co.uk> +1-by: Tapani Pälli <tapani.palli@intel.com> +1-by: Eric Engestrom <eric.engestrom@intel.com> +1-by: Yurii Kolesnykov <root@yurikoles.com> +1-by: myfreeweb <greg@unrelenting.technology> +1-by: Kenneth Graunke <kenneth@whitecape.org>
-rw-r--r--meson_options.txt6
-rw-r--r--src/vulkan/Makefile.am8
-rw-r--r--src/vulkan/meson.build3
-rw-r--r--src/vulkan/overlay-layer/README22
-rw-r--r--src/vulkan/overlay-layer/VkLayer_MESA_overlay.json.in11
-rw-r--r--src/vulkan/overlay-layer/meson.build62
-rw-r--r--src/vulkan/overlay-layer/overlay.cpp1843
-rw-r--r--src/vulkan/overlay-layer/overlay.frag14
-rw-r--r--src/vulkan/overlay-layer/overlay.vert25
-rw-r--r--src/vulkan/overlay-layer/vk_layer_table.cpp146
-rw-r--r--src/vulkan/overlay-layer/vk_layer_table.h51
11 files changed, 2191 insertions, 0 deletions
diff --git a/meson_options.txt b/meson_options.txt
index d0ab500fb27..4983cb6386a 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -168,6 +168,12 @@ option(
description : 'Location relative to prefix to put vulkan icds on install. Default: $datadir/vulkan/icd.d'
)
option(
+ 'vulkan-overlay-layer',
+ type : 'boolean',
+ value : false,
+ description : 'Whether to build the vulkan overlay layer'
+)
+option(
'shared-glapi',
type : 'boolean',
value : true,
diff --git a/src/vulkan/Makefile.am b/src/vulkan/Makefile.am
index cc738d5c9a5..fbd9e300032 100644
--- a/src/vulkan/Makefile.am
+++ b/src/vulkan/Makefile.am
@@ -9,6 +9,14 @@ MKDIR_GEN = $(AM_V_at)$(MKDIR_P) $(@D)
PYTHON_GEN = $(AM_V_GEN)$(PYTHON) $(PYTHON_FLAGS)
EXTRA_DIST = \
+ overlay-layer/README \
+ overlay-layer/meson.build \
+ overlay-layer/overlay.cpp \
+ overlay-layer/overlay.frag \
+ overlay-layer/overlay.vert \
+ overlay-layer/VkLayer_MESA_overlay.json.in \
+ overlay-layer/vk_layer_table.cpp \
+ overlay-layer/vk_layer_table.h \
util/gen_enum_to_str.py \
util/meson.build \
wsi/meson.build \
diff --git a/src/vulkan/meson.build b/src/vulkan/meson.build
index 59e1fd1fabe..35d7e5e61d8 100644
--- a/src/vulkan/meson.build
+++ b/src/vulkan/meson.build
@@ -25,3 +25,6 @@ inc_vulkan_wsi = include_directories('wsi')
subdir('util')
subdir('wsi')
+if get_option('vulkan-overlay-layer')
+ subdir('overlay-layer')
+endif
diff --git a/src/vulkan/overlay-layer/README b/src/vulkan/overlay-layer/README
new file mode 100644
index 00000000000..d3fb03a7e94
--- /dev/null
+++ b/src/vulkan/overlay-layer/README
@@ -0,0 +1,22 @@
+A Vulkan layer to display information about the running application
+using an overlay.
+
+To turn on the layer run :
+```
+VK_INSTANCE_LAYERS=VK_LAYER_MESA_overlay /path/to/my_vulkan_app
+```
+
+List the available statistics :
+```
+VK_INSTANCE_LAYERS=VK_LAYER_MESA_overlay VK_LAYER_MESA_OVERLAY_STATS=help /path/to/my_vulkan_app
+```
+
+Turn on some statistics :
+```
+VK_INSTANCE_LAYERS=VK_LAYER_MESA_overlay VK_LAYER_MESA_OVERLAY_STATS=submit,draw,pipeline-graphics /path/to/my_vulkan_app
+```
+
+Position the layer :
+```
+VK_INSTANCE_LAYERS=VK_LAYER_MESA_overlay VK_LAYER_MESA_OVERLAY_STATS=submit,draw,pipeline-graphics VK_LAYER_MESA_OVERLAY_POSITION=top-right /path/to/my_vulkan_app
+```
diff --git a/src/vulkan/overlay-layer/VkLayer_MESA_overlay.json.in b/src/vulkan/overlay-layer/VkLayer_MESA_overlay.json.in
new file mode 100644
index 00000000000..5a9a88a9841
--- /dev/null
+++ b/src/vulkan/overlay-layer/VkLayer_MESA_overlay.json.in
@@ -0,0 +1,11 @@
+{
+ "file_format_version" : "1.0.0",
+ "layer" : {
+ "name": "VK_LAYER_MESA_overlay",
+ "type": "GLOBAL",
+ "library_path": "@install_dir@/libVkLayer_MESA_overlay.so",
+ "api_version": "1.1.73",
+ "implementation_version": "1",
+ "description": "Mesa Overlay layer"
+ }
+}
diff --git a/src/vulkan/overlay-layer/meson.build b/src/vulkan/overlay-layer/meson.build
new file mode 100644
index 00000000000..573983e0438
--- /dev/null
+++ b/src/vulkan/overlay-layer/meson.build
@@ -0,0 +1,62 @@
+# Copyright © 2019 Intel Corporation
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+vklayer_install_dir = join_paths(get_option('prefix'), 'share', 'vulkan', 'explicit_layer.d')
+
+glslang = find_program('glslangValidator')
+
+overlay_shaders = [
+ 'overlay.frag',
+ 'overlay.vert',
+]
+overlay_spv = []
+foreach s : ['overlay.frag', 'overlay.vert']
+ overlay_spv += custom_target(
+ s + '.spv.h', input : s, output : s + '.spv.h',
+ command : [glslang, '-V', '-x', '-o', '@OUTPUT@', '@INPUT@'])
+endforeach
+
+vklayer_files = files(
+ 'overlay.cpp',
+ 'vk_layer_table.cpp',
+)
+
+vklayer_mesa_overlay = shared_library(
+ 'VkLayer_MESA_overlay',
+ vklayer_files, overlay_spv,
+ c_args : [c_vis_args, no_override_init_args],
+ cpp_args : [cpp_vis_args],
+ dependencies : [libimgui_core_dep, dep_dl],
+ include_directories : [inc_common, inc_vulkan_util],
+ link_args : cc.get_supported_link_arguments(['-Wl,-Bsymbolic-functions', '-Wl,-z,relro']),
+ link_with : [libmesa_util, libvulkan_util],
+ install_dir : vklayer_install_dir,
+)
+
+sdata = configuration_data()
+sdata.set('install_dir', vklayer_install_dir)
+
+configure_file(
+ input : 'VkLayer_MESA_overlay.json.in',
+ output : '@BASENAME@',
+ configuration : sdata,
+ install_dir : vklayer_install_dir,
+ install : true
+)
diff --git a/src/vulkan/overlay-layer/overlay.cpp b/src/vulkan/overlay-layer/overlay.cpp
new file mode 100644
index 00000000000..f3678198b00
--- /dev/null
+++ b/src/vulkan/overlay-layer/overlay.cpp
@@ -0,0 +1,1843 @@
+/*
+ * Copyright © 2019 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include <vk_loader_platform.h>
+#include <vulkan/vulkan.h>
+#include <vk_dispatch_table_helper.h>
+#include <vulkan/vk_layer.h>
+#include "vk_layer_data.h"
+#include "vk_layer_table.h"
+#include "vk_layer_extension_utils.h"
+
+#include "imgui.h"
+
+#include "util/debug.h"
+#include "util/hash_table.h"
+#include "util/ralloc.h"
+#include "util/os_time.h"
+#include "util/simple_mtx.h"
+
+#include "vk_enum_to_str.h"
+
+enum layer_position {
+ LAYER_POSITION_TOP_LEFT,
+ LAYER_POSITION_TOP_RIGHT,
+ LAYER_POSITION_BOTTOM_LEFT,
+ LAYER_POSITION_BOTTOM_RIGHT,
+};
+
+static enum layer_position
+parse_layer_position(const char *str)
+{
+ if (!str || !strcmp(str, "top-left"))
+ return LAYER_POSITION_TOP_LEFT;
+ if (!strcmp(str, "top-right"))
+ return LAYER_POSITION_TOP_RIGHT;
+ if (!strcmp(str, "bottom-left"))
+ return LAYER_POSITION_BOTTOM_LEFT;
+ if (!strcmp(str, "bottom-right"))
+ return LAYER_POSITION_BOTTOM_RIGHT;
+ return LAYER_POSITION_TOP_LEFT;
+}
+
+/* Mapped from VkInstace/VkPhysicalDevice */
+struct instance_data {
+ VkLayerInstanceDispatchTable vtable;
+ VkInstance instance;
+
+ enum layer_position position;
+ uint64_t enabled_stats;
+};
+
+enum frame_stat_type {
+ FRAME_STAT_SUBMIT,
+ FRAME_STAT_DRAW,
+ FRAME_STAT_DRAW_INDEXED,
+ FRAME_STAT_DRAW_INDIRECT,
+ FRAME_STAT_DRAW_INDEXED_INDIRECT,
+ FRAME_STAT_DRAW_INDIRECT_COUNT,
+ FRAME_STAT_DRAW_INDEXED_INDIRECT_COUNT,
+ FRAME_STAT_DISPATCH,
+ FRAME_STAT_DISPATCH_INDIRECT,
+ FRAME_STAT_PIPELINE_GRAPHICS,
+ FRAME_STAT_PIPELINE_COMPUTE,
+ FRAME_STAT_PIPELINE_RAYTRACING,
+
+ FRAME_STAT_COUNT,
+
+ FRAME_STAT_ACQUIRE_TIMING = FRAME_STAT_COUNT,
+ FRAME_STAT_HELP,
+};
+
+#define FRAME_STAT_ENABLED(id) (1ULL << (FRAME_STAT_ ## id))
+
+static struct debug_control enable_flags[] = {
+ { "submit", FRAME_STAT_ENABLED(SUBMIT) },
+ { "draw", FRAME_STAT_ENABLED(DRAW) },
+ { "draw-indexed", FRAME_STAT_ENABLED(DRAW_INDEXED) },
+ { "draw-indirect", FRAME_STAT_ENABLED(DRAW_INDIRECT) },
+ { "draw-indexed-indirect", FRAME_STAT_ENABLED(DRAW_INDEXED_INDIRECT) },
+ { "draw-indirect-count", FRAME_STAT_ENABLED(DRAW_INDIRECT_COUNT) },
+ { "draw-indexed-indirect-count", FRAME_STAT_ENABLED(DRAW_INDEXED_INDIRECT_COUNT) },
+ { "dispatch", FRAME_STAT_ENABLED(DISPATCH) },
+ { "dispatch-indirect", FRAME_STAT_ENABLED(DISPATCH_INDIRECT) },
+ { "pipeline-graphics", FRAME_STAT_ENABLED(PIPELINE_GRAPHICS) },
+ { "pipeline-compute", FRAME_STAT_ENABLED(PIPELINE_COMPUTE) },
+ { "pipeline-raytracing", FRAME_STAT_ENABLED(PIPELINE_RAYTRACING) },
+ { "acquire-timing", FRAME_STAT_ENABLED(ACQUIRE_TIMING) },
+ { "help", FRAME_STAT_ENABLED(HELP) },
+ { NULL, 0 },
+};
+
+struct frame_stat {
+ uint32_t stats[FRAME_STAT_COUNT];
+};
+
+/* Mapped from VkDevice/VkCommandBuffer */
+struct queue_data;
+struct device_data {
+ struct instance_data *instance;
+
+ VkLayerDispatchTable vtable;
+ VkPhysicalDevice physical_device;
+ VkDevice device;
+
+ VkPhysicalDeviceProperties properties;
+
+ struct queue_data *graphic_queue;
+
+ struct queue_data **queues;
+ uint32_t n_queues;
+
+ struct frame_stat stats;
+};
+
+/* Mapped from VkQueue */
+struct queue_data {
+ struct device_data *device;
+
+ VkQueue queue;
+ VkQueueFlags flags;
+ uint32_t family_index;
+};
+
+/* Mapped from VkSwapchainKHR */
+struct swapchain_data {
+ struct device_data *device;
+
+ VkSwapchainKHR swapchain;
+ unsigned width, height;
+ VkFormat format;
+
+ uint32_t n_images;
+ VkImage *images;
+ VkImageView *image_views;
+ VkFramebuffer *framebuffers;
+
+ VkRenderPass render_pass;
+
+ VkDescriptorPool descriptor_pool;
+ VkDescriptorSetLayout descriptor_layout;
+ VkDescriptorSet descriptor_set;
+
+ VkSampler font_sampler;
+
+ VkPipelineLayout pipeline_layout;
+ VkPipeline pipeline;
+
+ VkCommandPool command_pool;
+
+ struct {
+ VkCommandBuffer command_buffer;
+
+ VkBuffer vertex_buffer;
+ VkDeviceMemory vertex_buffer_mem;
+ VkDeviceSize vertex_buffer_size;
+
+ VkBuffer index_buffer;
+ VkDeviceMemory index_buffer_mem;
+ VkDeviceSize index_buffer_size;
+ } frame_data[2];
+
+ bool font_uploaded;
+ VkImage font_image;
+ VkImageView font_image_view;
+ VkDeviceMemory font_mem;
+ VkBuffer upload_font_buffer;
+ VkDeviceMemory upload_font_buffer_mem;
+
+ VkFence fence;
+ VkSemaphore submission_semaphore;
+
+ /**/
+ ImGuiContext* imgui_context;
+ ImVec2 window_size;
+
+ /**/
+ uint64_t n_frames;
+ uint64_t last_present_time;
+
+ double frame_times[200];
+
+ double acquire_times[200];
+ uint64_t n_acquire;
+
+ enum frame_stat_type stat_selector;
+ struct frame_stat stats_min, stats_max;
+ struct frame_stat stats[200];
+};
+
+static struct hash_table *vk_object_to_data = NULL;
+static simple_mtx_t vk_object_to_data_mutex = _SIMPLE_MTX_INITIALIZER_NP;
+
+thread_local ImGuiContext* __MesaImGui;
+
+static inline void ensure_vk_object_map(void)
+{
+ if (!vk_object_to_data) {
+ vk_object_to_data = _mesa_hash_table_create(NULL,
+ _mesa_hash_pointer,
+ _mesa_key_pointer_equal);
+ }
+}
+
+#define FIND_SWAPCHAIN_DATA(obj) ((struct swapchain_data *)find_object_data((void *) obj))
+#define FIND_DEVICE_DATA(obj) ((struct device_data *)find_object_data((void *) obj))
+#define FIND_QUEUE_DATA(obj) ((struct queue_data *)find_object_data((void *) obj))
+#define FIND_PHYSICAL_DEVICE_DATA(obj) ((struct instance_data *)find_object_data((void *) obj))
+#define FIND_INSTANCE_DATA(obj) ((struct instance_data *)find_object_data((void *) obj))
+static void *find_object_data(void *obj)
+{
+ simple_mtx_lock(&vk_object_to_data_mutex);
+ ensure_vk_object_map();
+ struct hash_entry *entry = _mesa_hash_table_search(vk_object_to_data, obj);
+ void *data = entry ? entry->data : NULL;
+ simple_mtx_unlock(&vk_object_to_data_mutex);
+ return data;
+}
+
+static void map_object(void *obj, void *data)
+{
+ simple_mtx_lock(&vk_object_to_data_mutex);
+ ensure_vk_object_map();
+ _mesa_hash_table_insert(vk_object_to_data, obj, data);
+ simple_mtx_unlock(&vk_object_to_data_mutex);
+}
+
+static void unmap_object(void *obj)
+{
+ simple_mtx_lock(&vk_object_to_data_mutex);
+ struct hash_entry *entry = _mesa_hash_table_search(vk_object_to_data, obj);
+ _mesa_hash_table_remove(vk_object_to_data, entry);
+ simple_mtx_unlock(&vk_object_to_data_mutex);
+}
+
+/**/
+static struct instance_data *new_instance_data(VkInstance instance)
+{
+ struct instance_data *data = rzalloc(NULL, struct instance_data);
+ data->instance = instance;
+ map_object(data->instance, data);
+ return data;
+}
+
+static void destroy_instance_data(struct instance_data *data)
+{
+ unmap_object(data->instance);
+ ralloc_free(data);
+}
+
+static void instance_data_map_physical_devices(struct instance_data *instance_data,
+ bool map)
+{
+ uint32_t physicalDeviceCount = 0;
+ instance_data->vtable.EnumeratePhysicalDevices(instance_data->instance,
+ &physicalDeviceCount,
+ NULL);
+
+ VkPhysicalDevice *physicalDevices = (VkPhysicalDevice *) malloc(sizeof(VkPhysicalDevice) * physicalDeviceCount);
+ instance_data->vtable.EnumeratePhysicalDevices(instance_data->instance,
+ &physicalDeviceCount,
+ physicalDevices);
+
+ for (uint32_t i = 0; i < physicalDeviceCount; i++) {
+ if (map)
+ map_object(physicalDevices[i], instance_data);
+ else
+ unmap_object(physicalDevices[i]);
+ }
+
+ free(physicalDevices);
+}
+
+/**/
+static struct device_data *new_device_data(VkDevice device, struct instance_data *instance)
+{
+ struct device_data *data = rzalloc(NULL, struct device_data);
+ data->instance = instance;
+ data->device = device;
+ map_object(data->device, data);
+ return data;
+}
+
+static struct queue_data *new_queue_data(VkQueue queue,
+ const VkQueueFamilyProperties *family_props,
+ uint32_t family_index,
+ struct device_data *device_data)
+{
+ struct queue_data *data = rzalloc(device_data, struct queue_data);
+ data->device = device_data;
+ data->queue = queue;
+ data->flags = family_props->queueFlags;
+ data->family_index = family_index;
+ map_object(data->queue, data);
+
+ if (data->flags & VK_QUEUE_GRAPHICS_BIT)
+ device_data->graphic_queue = data;
+
+ return data;
+}
+
+static void device_map_queues(struct device_data *data,
+ const VkDeviceCreateInfo *pCreateInfo)
+{
+ for (uint32_t i = 0; i < pCreateInfo->queueCreateInfoCount; i++)
+ data->n_queues += pCreateInfo->pQueueCreateInfos[i].queueCount;
+ data->queues = ralloc_array(data, struct queue_data *, data->n_queues);
+
+ struct instance_data *instance_data = data->instance;
+ uint32_t n_family_props;
+ instance_data->vtable.GetPhysicalDeviceQueueFamilyProperties(data->physical_device,
+ &n_family_props,
+ NULL);
+ VkQueueFamilyProperties *family_props =
+ (VkQueueFamilyProperties *)malloc(sizeof(VkQueueFamilyProperties) * n_family_props);
+ instance_data->vtable.GetPhysicalDeviceQueueFamilyProperties(data->physical_device,
+ &n_family_props,
+ family_props);
+
+ uint32_t queue_index = 0;
+ for (uint32_t i = 0; i < pCreateInfo->queueCreateInfoCount; i++) {
+ for (uint32_t j = 0; j < pCreateInfo->pQueueCreateInfos[i].queueCount; j++) {
+ VkQueue queue;
+ data->vtable.GetDeviceQueue(data->device,
+ pCreateInfo->pQueueCreateInfos[i].queueFamilyIndex,
+ j, &queue);
+ data->queues[queue_index++] =
+ new_queue_data(queue, &family_props[pCreateInfo->pQueueCreateInfos[i].queueFamilyIndex],
+ pCreateInfo->pQueueCreateInfos[i].queueFamilyIndex, data);
+ }
+ }
+
+ free(family_props);
+}
+
+static void device_unmap_queues(struct device_data *data)
+{
+ for (uint32_t i = 0; i < data->n_queues; i++)
+ unmap_object(data->queues[i]->queue);
+}
+
+static void destroy_device_data(struct device_data *data)
+{
+ unmap_object(data->device);
+ ralloc_free(data);
+}
+
+static void check_vk_result(VkResult err)
+{
+ if (err != VK_SUCCESS)
+ printf("ERROR!\n");
+}
+
+/**/
+static struct swapchain_data *new_swapchain_data(VkSwapchainKHR swapchain,
+ struct device_data *device_data)
+{
+ struct swapchain_data *data = rzalloc(NULL, struct swapchain_data);
+ data->device = device_data;
+ data->swapchain = swapchain;
+ data->window_size = ImVec2(300, 300);
+ map_object(data->swapchain, data);
+ return data;
+}
+
+static void destroy_swapchain_data(struct swapchain_data *data)
+{
+ unmap_object(data->swapchain);
+ ralloc_free(data);
+}
+
+static void snapshot_swapchain_frame(struct swapchain_data *data)
+{
+ uint64_t now = os_time_get();
+
+ if (data->last_present_time) {
+ data->frame_times[(data->n_frames - 1) % ARRAY_SIZE(data->frame_times)] =
+ ((double)now - (double)data->last_present_time) / 1000.0;
+ }
+
+ struct device_data *device_data = data->device;
+ data->stats[data->n_frames % ARRAY_SIZE(data->frame_times)] = device_data->stats;
+ memset(&device_data->stats, 0, sizeof(device_data->stats));
+
+ data->last_present_time = now;
+ data->n_frames++;
+}
+
+static float get_frame_timing(void *_data, int _idx)
+{
+ struct swapchain_data *data = (struct swapchain_data *) _data;
+ if ((ARRAY_SIZE(data->frame_times) - _idx) > (data->n_frames - 2))
+ return 0.0f;
+ int idx = ARRAY_SIZE(data->frame_times) +
+ (data->n_frames - 2) < ARRAY_SIZE(data->frame_times) ?
+ _idx - (data->n_frames - 2) :
+ _idx + (data->n_frames - 2);
+ idx %= ARRAY_SIZE(data->frame_times);
+ return data->frame_times[idx];
+}
+
+static float get_acquire_timing(void *_data, int _idx)
+{
+ struct swapchain_data *data = (struct swapchain_data *) _data;
+ if ((ARRAY_SIZE(data->acquire_times) - _idx) > data->n_acquire)
+ return 0.0f;
+ int idx = ARRAY_SIZE(data->acquire_times) +
+ data->n_acquire < ARRAY_SIZE(data->acquire_times) ?
+ _idx - data->n_acquire :
+ _idx + data->n_acquire;
+ idx %= ARRAY_SIZE(data->acquire_times);
+ return data->acquire_times[idx];
+}
+
+static float get_stat(void *_data, int _idx)
+{
+ struct swapchain_data *data = (struct swapchain_data *) _data;
+ if ((ARRAY_SIZE(data->stats) - _idx) > data->n_frames)
+ return 0.0f;
+ int idx = ARRAY_SIZE(data->stats) +
+ data->n_frames < ARRAY_SIZE(data->stats) ?
+ _idx - data->n_frames :
+ _idx + data->n_frames;
+ idx %= ARRAY_SIZE(data->stats);
+ return data->stats[idx].stats[data->stat_selector];
+}
+
+static void position_layer(struct swapchain_data *data)
+
+{
+ struct device_data *device_data = data->device;
+ struct instance_data *instance_data = device_data->instance;
+
+ ImGui::SetNextWindowBgAlpha(0.5);
+ ImGui::SetNextWindowSize(data->window_size, ImGuiCond_Always);
+ switch (instance_data->position) {
+ case LAYER_POSITION_TOP_LEFT:
+ ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
+ break;
+ case LAYER_POSITION_TOP_RIGHT:
+ ImGui::SetNextWindowPos(ImVec2(data->width - data->window_size.x, 0),
+ ImGuiCond_Always);
+ break;
+ case LAYER_POSITION_BOTTOM_LEFT:
+ ImGui::SetNextWindowPos(ImVec2(0, data->height - data->window_size.y),
+ ImGuiCond_Always);
+ break;
+ case LAYER_POSITION_BOTTOM_RIGHT:
+ ImGui::SetNextWindowPos(ImVec2(data->width - data->window_size.x,
+ data->height - data->window_size.y),
+ ImGuiCond_Always);
+ break;
+ }
+}
+
+static void compute_swapchain_display(struct swapchain_data *data)
+{
+ struct device_data *device_data = data->device;
+ struct instance_data *instance_data = device_data->instance;
+
+ ImGui::SetCurrentContext(data->imgui_context);
+ ImGui::NewFrame();
+ position_layer(data);
+ ImGui::Begin("Mesa overlay");
+ ImGui::Text("Device: %s", device_data->properties.deviceName);
+
+ const char *format_name = vk_Format_to_str(data->format);
+ format_name = format_name ? (format_name + strlen("VK_FORMAT_")) : "unknown";
+ ImGui::Text("Swapchain format: %s", format_name);
+ ImGui::Text("Frames: %lu", data->n_frames);
+
+ {
+ double min_time = FLT_MAX, max_time = 0.0f;
+ for (uint32_t i = 0; i < MIN2(data->n_frames - 2, ARRAY_SIZE(data->frame_times)); i++) {
+ min_time = MIN2(min_time, data->frame_times[i]);
+ max_time = MAX2(max_time, data->frame_times[i]);
+ }
+ ImGui::PlotHistogram("##Frame timings", get_frame_timing, data,
+ ARRAY_SIZE(data->frame_times), 0,
+ NULL, min_time, max_time,
+ ImVec2(ImGui::GetContentRegionAvailWidth(), 30));
+ ImGui::Text("Frame timing: %.3fms [%.3f, %.3f]",
+ get_frame_timing(data, ARRAY_SIZE(data->frame_times) - 1),
+ min_time, max_time);
+ }
+
+ if (instance_data->enabled_stats & FRAME_STAT_ENABLED(ACQUIRE_TIMING)) {
+ double min_time = FLT_MAX, max_time = 0.0f;
+ for (uint32_t i = 0; i < MIN2(data->n_acquire - 2, ARRAY_SIZE(data->acquire_times)); i++) {
+ min_time = MIN2(min_time, data->acquire_times[i]);
+ max_time = MAX2(max_time, data->acquire_times[i]);
+ }
+ ImGui::PlotHistogram("##Acquire timings", get_acquire_timing, data,
+ ARRAY_SIZE(data->acquire_times), 0,
+ NULL, min_time, max_time,
+ ImVec2(ImGui::GetContentRegionAvailWidth(), 30));
+ ImGui::Text("Acquire timing: %.3fms [%.3f, %.3f]",
+ get_acquire_timing(data, ARRAY_SIZE(data->acquire_times) - 1),
+ min_time, max_time);
+
+ for (uint32_t i = 0; i < ARRAY_SIZE(data->stats_min.stats); i++) {
+ data->stats_min.stats[i] = UINT32_MAX;
+ data->stats_max.stats[i] = 0;
+ }
+ for (uint32_t i = 0; i < MIN2(data->n_frames - 1, ARRAY_SIZE(data->stats)); i++) {
+ for (uint32_t j = 0; j < ARRAY_SIZE(data->stats[0].stats); j++) {
+ data->stats_min.stats[j] = MIN2(data->stats[i].stats[j],
+ data->stats_min.stats[j]);
+ data->stats_max.stats[j] = MAX2(data->stats[i].stats[j],
+ data->stats_max.stats[j]);
+ }
+ }
+ }
+
+ for (uint32_t i = 0; i < ARRAY_SIZE(device_data->stats.stats); i++) {
+ if (!(instance_data->enabled_stats & (1ULL << i)))
+ continue;
+
+ char hash[40];
+ snprintf(hash, sizeof(hash), "##%s", enable_flags[i].string);
+ data->stat_selector = (enum frame_stat_type) i;
+
+ ImGui::PlotHistogram(hash, get_stat, data,
+ ARRAY_SIZE(data->stats), 0,
+ NULL,
+ data->stats_min.stats[i],
+ data->stats_max.stats[i],
+ ImVec2(ImGui::GetContentRegionAvailWidth(), 30));
+ ImGui::Text("%s: %.0f [%u, %u]", enable_flags[i].string,
+ get_stat(data, ARRAY_SIZE(data->stats) - 1),
+ data->stats_min.stats[i], data->stats_max.stats[i]);
+ }
+ data->window_size = ImVec2(data->window_size.x, ImGui::GetCursorPosY() + 10.0f);
+ ImGui::End();
+ ImGui::EndFrame();
+ ImGui::Render();
+}
+
+static uint32_t vk_memory_type(struct device_data *data,
+ VkMemoryPropertyFlags properties,
+ uint32_t type_bits)
+{
+ VkPhysicalDeviceMemoryProperties prop;
+ data->instance->vtable.GetPhysicalDeviceMemoryProperties(data->physical_device, &prop);
+ for (uint32_t i = 0; i < prop.memoryTypeCount; i++)
+ if ((prop.memoryTypes[i].propertyFlags & properties) == properties && type_bits & (1<<i))
+ return i;
+ return 0xFFFFFFFF; // Unable to find memoryType
+}
+
+static void ensure_swapchain_fonts(struct swapchain_data *data,
+ VkCommandBuffer command_buffer)
+{
+ if (data->font_uploaded)
+ return;
+
+ data->font_uploaded = true;
+
+ struct device_data *device_data = data->device;
+ VkResult err;
+ ImGuiIO& io = ImGui::GetIO();
+ unsigned char* pixels;
+ int width, height;
+ io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+ size_t upload_size = width * height * 4 * sizeof(char);
+
+ /* Upload buffer */
+ VkBufferCreateInfo buffer_info = {};
+ buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
+ buffer_info.size = upload_size;
+ buffer_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
+ buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
+ err = device_data->vtable.CreateBuffer(device_data->device, &buffer_info,
+ NULL, &data->upload_font_buffer);
+ check_vk_result(err);
+ VkMemoryRequirements upload_buffer_req;
+ device_data->vtable.GetBufferMemoryRequirements(device_data->device,
+ data->upload_font_buffer,
+ &upload_buffer_req);
+ VkMemoryAllocateInfo upload_alloc_info = {};
+ upload_alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
+ upload_alloc_info.allocationSize = upload_buffer_req.size;
+ upload_alloc_info.memoryTypeIndex = vk_memory_type(device_data,
+ VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
+ upload_buffer_req.memoryTypeBits);
+ err = device_data->vtable.AllocateMemory(device_data->device,
+ &upload_alloc_info,
+ NULL,
+ &data->upload_font_buffer_mem);
+ check_vk_result(err);
+ err = device_data->vtable.BindBufferMemory(device_data->device,
+ data->upload_font_buffer,
+ data->upload_font_buffer_mem, 0);
+ check_vk_result(err);
+
+ /* Upload to Buffer */
+ char* map = NULL;
+ err = device_data->vtable.MapMemory(device_data->device,
+ data->upload_font_buffer_mem,
+ 0, upload_size, 0, (void**)(&map));
+ check_vk_result(err);
+ memcpy(map, pixels, upload_size);
+ VkMappedMemoryRange range[1] = {};
+ range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
+ range[0].memory = data->upload_font_buffer_mem;
+ range[0].size = upload_size;
+ err = device_data->vtable.FlushMappedMemoryRanges(device_data->device, 1, range);
+ check_vk_result(err);
+ device_data->vtable.UnmapMemory(device_data->device,
+ data->upload_font_buffer_mem);
+
+ /* Copy buffer to image */
+ VkImageMemoryBarrier copy_barrier[1] = {};
+ copy_barrier[0].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
+ copy_barrier[0].dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
+ copy_barrier[0].oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+ copy_barrier[0].newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
+ copy_barrier[0].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
+ copy_barrier[0].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
+ copy_barrier[0].image = data->font_image;
+ copy_barrier[0].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+ copy_barrier[0].subresourceRange.levelCount = 1;
+ copy_barrier[0].subresourceRange.layerCount = 1;
+ device_data->vtable.CmdPipelineBarrier(command_buffer,
+ VK_PIPELINE_STAGE_HOST_BIT,
+ VK_PIPELINE_STAGE_TRANSFER_BIT,
+ 0, 0, NULL, 0, NULL,
+ 1, copy_barrier);
+
+ VkBufferImageCopy region = {};
+ region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+ region.imageSubresource.layerCount = 1;
+ region.imageExtent.width = width;
+ region.imageExtent.height = height;
+ region.imageExtent.depth = 1;
+ device_data->vtable.CmdCopyBufferToImage(command_buffer,
+ data->upload_font_buffer,
+ data->font_image,
+ VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
+ 1, &region);
+
+ VkImageMemoryBarrier use_barrier[1] = {};
+ use_barrier[0].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
+ use_barrier[0].srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
+ use_barrier[0].dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
+ use_barrier[0].oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
+ use_barrier[0].newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
+ use_barrier[0].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
+ use_barrier[0].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
+ use_barrier[0].image = data->font_image;
+ use_barrier[0].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+ use_barrier[0].subresourceRange.levelCount = 1;
+ use_barrier[0].subresourceRange.layerCount = 1;
+ device_data->vtable.CmdPipelineBarrier(command_buffer,
+ VK_PIPELINE_STAGE_TRANSFER_BIT,
+ VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT,
+ 0,
+ 0, NULL,
+ 0, NULL,
+ 1, use_barrier);
+
+ /* Store our identifier */
+ io.Fonts->TexID = (ImTextureID)(intptr_t)data->font_image;
+}
+
+static void CreateOrResizeBuffer(struct device_data *data,
+ VkBuffer *buffer,
+ VkDeviceMemory *buffer_memory,
+ VkDeviceSize *buffer_size,
+ size_t new_size, VkBufferUsageFlagBits usage)
+{
+ VkResult err;
+ if (*buffer != VK_NULL_HANDLE)
+ data->vtable.DestroyBuffer(data->device, *buffer, NULL);
+ if (*buffer_memory)
+ data->vtable.FreeMemory(data->device, *buffer_memory, NULL);
+
+ VkBufferCreateInfo buffer_info = {};
+ buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
+ buffer_info.size = new_size;
+ buffer_info.usage = usage;
+ buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
+ err = data->vtable.CreateBuffer(data->device, &buffer_info, NULL, buffer);
+ check_vk_result(err);
+
+ VkMemoryRequirements req;
+ data->vtable.GetBufferMemoryRequirements(data->device, *buffer, &req);
+ VkMemoryAllocateInfo alloc_info = {};
+ alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
+ alloc_info.allocationSize = req.size;
+ alloc_info.memoryTypeIndex =
+ vk_memory_type(data, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
+ err = data->vtable.AllocateMemory(data->device, &alloc_info, NULL, buffer_memory);
+ check_vk_result(err);
+
+ err = data->vtable.BindBufferMemory(data->device, *buffer, *buffer_memory, 0);
+ check_vk_result(err);
+ *buffer_size = new_size;
+}
+
+static void render_swapchain_display(struct swapchain_data *data, unsigned image_index)
+{
+ ImDrawData* draw_data = ImGui::GetDrawData();
+ if (draw_data->TotalVtxCount == 0)
+ return;
+
+ struct device_data *device_data = data->device;
+ uint32_t idx = data->n_frames % ARRAY_SIZE(data->frame_data);
+ VkCommandBuffer command_buffer = data->frame_data[idx].command_buffer;
+ VkResult err;
+
+ device_data->vtable.ResetCommandBuffer(command_buffer, 0);
+
+ VkRenderPassBeginInfo render_pass_info = {};
+ render_pass_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
+ render_pass_info.renderPass = data->render_pass;
+ render_pass_info.framebuffer = data->framebuffers[image_index];
+ render_pass_info.renderArea.extent.width = data->width;
+ render_pass_info.renderArea.extent.height = data->height;
+
+ VkCommandBufferBeginInfo buffer_begin_info = {};
+ buffer_begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
+
+ device_data->vtable.BeginCommandBuffer(command_buffer, &buffer_begin_info);
+
+ ensure_swapchain_fonts(data, command_buffer);
+
+ /* Bounce the image to display back to color attachment layout for
+ * rendering on top of it.
+ */
+ VkImageMemoryBarrier imb;
+ imb.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
+ imb.pNext = nullptr;
+ imb.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
+ imb.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
+ imb.oldLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
+ imb.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+ imb.image = data->images[image_index];
+ 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 = device_data->graphic_queue->family_index;
+ imb.dstQueueFamilyIndex = device_data->graphic_queue->family_index;
+ device_data->vtable.CmdPipelineBarrier(command_buffer,
+ 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 */
+
+ device_data->vtable.CmdBeginRenderPass(command_buffer, &render_pass_info,
+ VK_SUBPASS_CONTENTS_INLINE);
+
+ /* Create/Resize vertex & index buffers */
+ size_t vertex_size = draw_data->TotalVtxCount * sizeof(ImDrawVert);
+ size_t index_size = draw_data->TotalIdxCount * sizeof(ImDrawIdx);
+ if (data->frame_data[idx].vertex_buffer_size < vertex_size) {
+ CreateOrResizeBuffer(device_data,
+ &data->frame_data[idx].vertex_buffer,
+ &data->frame_data[idx].vertex_buffer_mem,
+ &data->frame_data[idx].vertex_buffer_size,
+ vertex_size, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT);
+ }
+ if (data->frame_data[idx].index_buffer_size < index_size) {
+ CreateOrResizeBuffer(device_data,
+ &data->frame_data[idx].index_buffer,
+ &data->frame_data[idx].index_buffer_mem,
+ &data->frame_data[idx].index_buffer_size,
+ index_size, VK_BUFFER_USAGE_INDEX_BUFFER_BIT);
+ }
+
+ /* Upload vertex & index data */
+ VkBuffer vertex_buffer = data->frame_data[idx].vertex_buffer;
+ VkDeviceMemory vertex_mem = data->frame_data[idx].vertex_buffer_mem;
+ VkBuffer index_buffer = data->frame_data[idx].index_buffer;
+ VkDeviceMemory index_mem = data->frame_data[idx].index_buffer_mem;
+ ImDrawVert* vtx_dst = NULL;
+ ImDrawIdx* idx_dst = NULL;
+ err = device_data->vtable.MapMemory(device_data->device, vertex_mem,
+ 0, vertex_size, 0, (void**)(&vtx_dst));
+ check_vk_result(err);
+ err = device_data->vtable.MapMemory(device_data->device, index_mem,
+ 0, index_size, 0, (void**)(&idx_dst));
+ check_vk_result(err);
+ for (int n = 0; n < draw_data->CmdListsCount; n++)
+ {
+ const ImDrawList* cmd_list = draw_data->CmdLists[n];
+ memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
+ memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
+ vtx_dst += cmd_list->VtxBuffer.Size;
+ idx_dst += cmd_list->IdxBuffer.Size;
+ }
+ VkMappedMemoryRange range[2] = {};
+ range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
+ range[0].memory = vertex_mem;
+ range[0].size = VK_WHOLE_SIZE;
+ range[1].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
+ range[1].memory = index_mem;
+ range[1].size = VK_WHOLE_SIZE;
+ err = device_data->vtable.FlushMappedMemoryRanges(device_data->device, 2, range);
+ check_vk_result(err);
+ device_data->vtable.UnmapMemory(device_data->device, vertex_mem);
+ device_data->vtable.UnmapMemory(device_data->device, index_mem);
+
+ /* Bind pipeline and descriptor sets */
+ device_data->vtable.CmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, data->pipeline);
+ VkDescriptorSet desc_set[1] = { data->descriptor_set };
+ device_data->vtable.CmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS,
+ data->pipeline_layout, 0, 1, desc_set, 0, NULL);
+
+ /* Bind vertex & index buffers */
+ VkBuffer vertex_buffers[1] = { vertex_buffer };
+ VkDeviceSize vertex_offset[1] = { 0 };
+ device_data->vtable.CmdBindVertexBuffers(command_buffer, 0, 1, vertex_buffers, vertex_offset);
+ device_data->vtable.CmdBindIndexBuffer(command_buffer, index_buffer, 0, VK_INDEX_TYPE_UINT16);
+
+ /* Setup viewport */
+ VkViewport viewport;
+ viewport.x = 0;
+ viewport.y = 0;
+ viewport.width = draw_data->DisplaySize.x;
+ viewport.height = draw_data->DisplaySize.y;
+ viewport.minDepth = 0.0f;
+ viewport.maxDepth = 1.0f;
+ device_data->vtable.CmdSetViewport(command_buffer, 0, 1, &viewport);
+
+
+ /* Setup scale and translation through push constants :
+ *
+ * Our visible imgui space lies from draw_data->DisplayPos (top left) to
+ * draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin
+ * is typically (0,0) for single viewport apps.
+ */
+ float scale[2];
+ scale[0] = 2.0f / draw_data->DisplaySize.x;
+ scale[1] = 2.0f / draw_data->DisplaySize.y;
+ float translate[2];
+ translate[0] = -1.0f - draw_data->DisplayPos.x * scale[0];
+ translate[1] = -1.0f - draw_data->DisplayPos.y * scale[1];
+ device_data->vtable.CmdPushConstants(command_buffer, data->pipeline_layout,
+ VK_SHADER_STAGE_VERTEX_BIT,
+ sizeof(float) * 0, sizeof(float) * 2, scale);
+ device_data->vtable.CmdPushConstants(command_buffer, data->pipeline_layout,
+ VK_SHADER_STAGE_VERTEX_BIT,
+ sizeof(float) * 2, sizeof(float) * 2, translate);
+
+ // Render the command lists:
+ int vtx_offset = 0;
+ int idx_offset = 0;
+ ImVec2 display_pos = draw_data->DisplayPos;
+ for (int n = 0; n < draw_data->CmdListsCount; n++)
+ {
+ const ImDrawList* cmd_list = draw_data->CmdLists[n];
+ for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
+ {
+ const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
+ // Apply scissor/clipping rectangle
+ // FIXME: We could clamp width/height based on clamped min/max values.
+ VkRect2D scissor;
+ scissor.offset.x = (int32_t)(pcmd->ClipRect.x - display_pos.x) > 0 ? (int32_t)(pcmd->ClipRect.x - display_pos.x) : 0;
+ scissor.offset.y = (int32_t)(pcmd->ClipRect.y - display_pos.y) > 0 ? (int32_t)(pcmd->ClipRect.y - display_pos.y) : 0;
+ scissor.extent.width = (uint32_t)(pcmd->ClipRect.z - pcmd->ClipRect.x);
+ scissor.extent.height = (uint32_t)(pcmd->ClipRect.w - pcmd->ClipRect.y + 1); // FIXME: Why +1 here?
+ device_data->vtable.CmdSetScissor(command_buffer, 0, 1, &scissor);
+
+ // Draw
+ device_data->vtable.CmdDrawIndexed(command_buffer, pcmd->ElemCount, 1, idx_offset, vtx_offset, 0);
+
+ idx_offset += pcmd->ElemCount;
+ }
+ vtx_offset += cmd_list->VtxBuffer.Size;
+ }
+
+ device_data->vtable.CmdEndRenderPass(command_buffer);
+ device_data->vtable.EndCommandBuffer(command_buffer);
+
+ if (data->submission_semaphore) {
+ device_data->vtable.DestroySemaphore(device_data->device,
+ data->submission_semaphore,
+ NULL);
+ }
+ /* Submission semaphore */
+ VkSemaphoreCreateInfo semaphore_info = {};
+ semaphore_info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
+ err = device_data->vtable.CreateSemaphore(device_data->device, &semaphore_info,
+ NULL, &data->submission_semaphore);
+ check_vk_result(err);
+
+ VkSubmitInfo submit_info = {};
+ submit_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
+ submit_info.commandBufferCount = 1;
+ submit_info.pCommandBuffers = &command_buffer;
+ submit_info.signalSemaphoreCount = 1;
+ submit_info.pSignalSemaphores = &data->submission_semaphore;
+
+ device_data->vtable.WaitForFences(device_data->device, 1, &data->fence, VK_TRUE, UINT64_MAX);
+ device_data->vtable.ResetFences(device_data->device, 1, &data->fence);
+ device_data->vtable.QueueSubmit(device_data->graphic_queue->queue, 1, &submit_info, data->fence);
+}
+
+static const uint32_t overlay_vert_spv[] = {
+#include "overlay.vert.spv.h"
+};
+static const uint32_t overlay_frag_spv[] = {
+#include "overlay.frag.spv.h"
+};
+
+static void setup_swapchain_data_pipeline(struct swapchain_data *data)
+{
+ struct device_data *device_data = data->device;
+ VkShaderModule vert_module, frag_module;
+ VkResult err;
+
+ /* Create shader modules */
+ VkShaderModuleCreateInfo vert_info = {};
+ vert_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
+ vert_info.codeSize = sizeof(overlay_vert_spv);
+ vert_info.pCode = overlay_vert_spv;
+ err = device_data->vtable.CreateShaderModule(device_data->device,
+ &vert_info, NULL, &vert_module);
+ check_vk_result(err);
+ VkShaderModuleCreateInfo frag_info = {};
+ frag_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
+ frag_info.codeSize = sizeof(overlay_frag_spv);
+ frag_info.pCode = (uint32_t*)overlay_frag_spv;
+ err = device_data->vtable.CreateShaderModule(device_data->device,
+ &frag_info, NULL, &frag_module);
+ check_vk_result(err);
+
+ /* Font sampler */
+ VkSamplerCreateInfo sampler_info = {};
+ sampler_info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
+ sampler_info.magFilter = VK_FILTER_LINEAR;
+ sampler_info.minFilter = VK_FILTER_LINEAR;
+ sampler_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
+ sampler_info.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
+ sampler_info.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
+ sampler_info.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
+ sampler_info.minLod = -1000;
+ sampler_info.maxLod = 1000;
+ sampler_info.maxAnisotropy = 1.0f;
+ err = device_data->vtable.CreateSampler(device_data->device, &sampler_info,
+ NULL, &data->font_sampler);
+ check_vk_result(err);
+
+ /* Descriptor pool */
+ VkDescriptorPoolSize sampler_pool_size = {};
+ sampler_pool_size.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+ sampler_pool_size.descriptorCount = 1;
+ VkDescriptorPoolCreateInfo desc_pool_info = {};
+ desc_pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
+ desc_pool_info.maxSets = 1;
+ desc_pool_info.poolSizeCount = 1;
+ desc_pool_info.pPoolSizes = &sampler_pool_size;
+ err = device_data->vtable.CreateDescriptorPool(device_data->device,
+ &desc_pool_info,
+ NULL, &data->descriptor_pool);
+ check_vk_result(err);
+
+ /* Descriptor layout */
+ VkSampler sampler[1] = { data->font_sampler };
+ VkDescriptorSetLayoutBinding binding[1] = {};
+ binding[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+ binding[0].descriptorCount = 1;
+ binding[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
+ binding[0].pImmutableSamplers = sampler;
+ VkDescriptorSetLayoutCreateInfo set_layout_info = {};
+ set_layout_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
+ set_layout_info.bindingCount = 1;
+ set_layout_info.pBindings = binding;
+ err = device_data->vtable.CreateDescriptorSetLayout(device_data->device,
+ &set_layout_info,
+ NULL, &data->descriptor_layout);
+ check_vk_result(err);
+
+ /* Descriptor set */
+ VkDescriptorSetAllocateInfo alloc_info = {};
+ alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
+ alloc_info.descriptorPool = data->descriptor_pool;
+ alloc_info.descriptorSetCount = 1;
+ alloc_info.pSetLayouts = &data->descriptor_layout;
+ err = device_data->vtable.AllocateDescriptorSets(device_data->device,
+ &alloc_info,
+ &data->descriptor_set);
+ check_vk_result(err);
+
+ /* Constants: we are using 'vec2 offset' and 'vec2 scale' instead of a full
+ * 3d projection matrix
+ */
+ VkPushConstantRange push_constants[1] = {};
+ push_constants[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
+ push_constants[0].offset = sizeof(float) * 0;
+ push_constants[0].size = sizeof(float) * 4;
+ VkPipelineLayoutCreateInfo layout_info = {};
+ layout_info.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
+ layout_info.setLayoutCount = 1;
+ layout_info.pSetLayouts = &data->descriptor_layout;
+ layout_info.pushConstantRangeCount = 1;
+ layout_info.pPushConstantRanges = push_constants;
+ err = device_data->vtable.CreatePipelineLayout(device_data->device,
+ &layout_info,
+ NULL, &data->pipeline_layout);
+ check_vk_result(err);
+
+
+ VkPipelineShaderStageCreateInfo stage[2] = {};
+ stage[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
+ stage[0].stage = VK_SHADER_STAGE_VERTEX_BIT;
+ stage[0].module = vert_module;
+ stage[0].pName = "main";
+ stage[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
+ stage[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT;
+ stage[1].module = frag_module;
+ stage[1].pName = "main";
+
+ VkVertexInputBindingDescription binding_desc[1] = {};
+ binding_desc[0].stride = sizeof(ImDrawVert);
+ binding_desc[0].inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
+
+ VkVertexInputAttributeDescription attribute_desc[3] = {};
+ attribute_desc[0].location = 0;
+ attribute_desc[0].binding = binding_desc[0].binding;
+ attribute_desc[0].format = VK_FORMAT_R32G32_SFLOAT;
+ attribute_desc[0].offset = IM_OFFSETOF(ImDrawVert, pos);
+ attribute_desc[1].location = 1;
+ attribute_desc[1].binding = binding_desc[0].binding;
+ attribute_desc[1].format = VK_FORMAT_R32G32_SFLOAT;
+ attribute_desc[1].offset = IM_OFFSETOF(ImDrawVert, uv);
+ attribute_desc[2].location = 2;
+ attribute_desc[2].binding = binding_desc[0].binding;
+ attribute_desc[2].format = VK_FORMAT_R8G8B8A8_UNORM;
+ attribute_desc[2].offset = IM_OFFSETOF(ImDrawVert, col);
+
+ VkPipelineVertexInputStateCreateInfo vertex_info = {};
+ vertex_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
+ vertex_info.vertexBindingDescriptionCount = 1;
+ vertex_info.pVertexBindingDescriptions = binding_desc;
+ vertex_info.vertexAttributeDescriptionCount = 3;
+ vertex_info.pVertexAttributeDescriptions = attribute_desc;
+
+ VkPipelineInputAssemblyStateCreateInfo ia_info = {};
+ ia_info.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
+ ia_info.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+
+ VkPipelineViewportStateCreateInfo viewport_info = {};
+ viewport_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
+ viewport_info.viewportCount = 1;
+ viewport_info.scissorCount = 1;
+
+ VkPipelineRasterizationStateCreateInfo raster_info = {};
+ raster_info.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
+ raster_info.polygonMode = VK_POLYGON_MODE_FILL;
+ raster_info.cullMode = VK_CULL_MODE_NONE;
+ raster_info.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE;
+ raster_info.lineWidth = 1.0f;
+
+ VkPipelineMultisampleStateCreateInfo ms_info = {};
+ ms_info.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
+ ms_info.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
+
+ VkPipelineColorBlendAttachmentState color_attachment[1] = {};
+ color_attachment[0].blendEnable = VK_TRUE;
+ color_attachment[0].srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
+ color_attachment[0].dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
+ color_attachment[0].colorBlendOp = VK_BLEND_OP_ADD;
+ color_attachment[0].srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
+ color_attachment[0].dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
+ color_attachment[0].alphaBlendOp = VK_BLEND_OP_ADD;
+ color_attachment[0].colorWriteMask = VK_COLOR_COMPONENT_R_BIT |
+ VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
+
+ VkPipelineDepthStencilStateCreateInfo depth_info = {};
+ depth_info.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
+
+ VkPipelineColorBlendStateCreateInfo blend_info = {};
+ blend_info.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
+ blend_info.attachmentCount = 1;
+ blend_info.pAttachments = color_attachment;
+
+ VkDynamicState dynamic_states[2] = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
+ VkPipelineDynamicStateCreateInfo dynamic_state = {};
+ dynamic_state.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
+ dynamic_state.dynamicStateCount = (uint32_t)IM_ARRAYSIZE(dynamic_states);
+ dynamic_state.pDynamicStates = dynamic_states;
+
+ VkGraphicsPipelineCreateInfo info = {};
+ info.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
+ info.flags = 0;
+ info.stageCount = 2;
+ info.pStages = stage;
+ info.pVertexInputState = &vertex_info;
+ info.pInputAssemblyState = &ia_info;
+ info.pViewportState = &viewport_info;
+ info.pRasterizationState = &raster_info;
+ info.pMultisampleState = &ms_info;
+ info.pDepthStencilState = &depth_info;
+ info.pColorBlendState = &blend_info;
+ info.pDynamicState = &dynamic_state;
+ info.layout = data->pipeline_layout;
+ info.renderPass = data->render_pass;
+ err = device_data->vtable.CreateGraphicsPipelines(device_data->device, VK_NULL_HANDLE,
+ 1, &info,
+ NULL, &data->pipeline);
+ check_vk_result(err);
+
+ device_data->vtable.DestroyShaderModule(device_data->device, vert_module, NULL);
+ device_data->vtable.DestroyShaderModule(device_data->device, frag_module, NULL);
+
+ ImGuiIO& io = ImGui::GetIO();
+ unsigned char* pixels;
+ int width, height;
+ io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+
+ /* Font image */
+ VkImageCreateInfo image_info = {};
+ image_info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
+ image_info.imageType = VK_IMAGE_TYPE_2D;
+ image_info.format = VK_FORMAT_R8G8B8A8_UNORM;
+ image_info.extent.width = width;
+ image_info.extent.height = height;
+ image_info.extent.depth = 1;
+ image_info.mipLevels = 1;
+ image_info.arrayLayers = 1;
+ image_info.samples = VK_SAMPLE_COUNT_1_BIT;
+ image_info.tiling = VK_IMAGE_TILING_OPTIMAL;
+ image_info.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
+ image_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
+ image_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+ err = device_data->vtable.CreateImage(device_data->device, &image_info,
+ NULL, &data->font_image);
+ check_vk_result(err);
+ VkMemoryRequirements font_image_req;
+ device_data->vtable.GetImageMemoryRequirements(device_data->device,
+ data->font_image, &font_image_req);
+ VkMemoryAllocateInfo image_alloc_info = {};
+ image_alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
+ image_alloc_info.allocationSize = font_image_req.size;
+ image_alloc_info.memoryTypeIndex = vk_memory_type(device_data,
+ VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
+ font_image_req.memoryTypeBits);
+ err = device_data->vtable.AllocateMemory(device_data->device, &image_alloc_info,
+ NULL, &data->font_mem);
+ check_vk_result(err);
+ err = device_data->vtable.BindImageMemory(device_data->device,
+ data->font_image,
+ data->font_mem, 0);
+ check_vk_result(err);
+
+ /* Font image view */
+ VkImageViewCreateInfo view_info = {};
+ view_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
+ view_info.image = data->font_image;
+ view_info.viewType = VK_IMAGE_VIEW_TYPE_2D;
+ view_info.format = VK_FORMAT_R8G8B8A8_UNORM;
+ view_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+ view_info.subresourceRange.levelCount = 1;
+ view_info.subresourceRange.layerCount = 1;
+ err = device_data->vtable.CreateImageView(device_data->device, &view_info,
+ NULL, &data->font_image_view);
+ check_vk_result(err);
+
+ /* Descriptor set */
+ VkDescriptorImageInfo desc_image[1] = {};
+ desc_image[0].sampler = data->font_sampler;
+ desc_image[0].imageView = data->font_image_view;
+ desc_image[0].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
+ VkWriteDescriptorSet write_desc[1] = {};
+ write_desc[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+ write_desc[0].dstSet = data->descriptor_set;
+ write_desc[0].descriptorCount = 1;
+ write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+ write_desc[0].pImageInfo = desc_image;
+ device_data->vtable.UpdateDescriptorSets(device_data->device, 1, write_desc, 0, NULL);
+}
+
+static void setup_swapchain_data(struct swapchain_data *data,
+ const VkSwapchainCreateInfoKHR *pCreateInfo)
+{
+ data->width = pCreateInfo->imageExtent.width;
+ data->height = pCreateInfo->imageExtent.height;
+ data->format = pCreateInfo->imageFormat;
+
+ data->imgui_context = ImGui::CreateContext();
+ ImGui::SetCurrentContext(data->imgui_context);
+
+ ImGui::GetIO().IniFilename = NULL;
+ ImGui::GetIO().DisplaySize = ImVec2((float)data->width, (float)data->height);
+
+ struct device_data *device_data = data->device;
+ VkResult err;
+
+ /* Render pass */
+ VkAttachmentDescription attachment_desc = {};
+ attachment_desc.format = pCreateInfo->imageFormat;
+ attachment_desc.samples = VK_SAMPLE_COUNT_1_BIT;
+ attachment_desc.loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
+ attachment_desc.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
+ attachment_desc.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+ attachment_desc.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+ attachment_desc.initialLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+ attachment_desc.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
+ VkAttachmentReference color_attachment = {};
+ color_attachment.attachment = 0;
+ color_attachment.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+ VkSubpassDescription subpass = {};
+ subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
+ subpass.colorAttachmentCount = 1;
+ subpass.pColorAttachments = &color_attachment;
+ VkSubpassDependency dependency = {};
+ dependency.srcSubpass = VK_SUBPASS_EXTERNAL;
+ dependency.dstSubpass = 0;
+ dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+ dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
+ dependency.srcAccessMask = 0;
+ dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
+ VkRenderPassCreateInfo render_pass_info = {};
+ render_pass_info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
+ render_pass_info.attachmentCount = 1;
+ render_pass_info.pAttachments = &attachment_desc;
+ render_pass_info.subpassCount = 1;
+ render_pass_info.pSubpasses = &subpass;
+ render_pass_info.dependencyCount = 1;
+ render_pass_info.pDependencies = &dependency;
+ err = device_data->vtable.CreateRenderPass(device_data->device,
+ &render_pass_info,
+ NULL, &data->render_pass);
+ check_vk_result(err);
+
+ setup_swapchain_data_pipeline(data);
+
+ device_data->vtable.GetSwapchainImagesKHR(device_data->device,
+ data->swapchain,
+ &data->n_images,
+ NULL);
+ data->images = ralloc_array(data, VkImage, data->n_images);
+ data->image_views = ralloc_array(data, VkImageView, data->n_images);
+ data->framebuffers = ralloc_array(data, VkFramebuffer, data->n_images);
+
+ device_data->vtable.GetSwapchainImagesKHR(device_data->device,
+ data->swapchain,
+ &data->n_images,
+ data->images);
+
+ /* Image views */
+ VkImageViewCreateInfo view_info = {};
+ view_info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
+ view_info.viewType = VK_IMAGE_VIEW_TYPE_2D;
+ view_info.format = pCreateInfo->imageFormat;
+ view_info.components.r = VK_COMPONENT_SWIZZLE_R;
+ view_info.components.g = VK_COMPONENT_SWIZZLE_G;
+ view_info.components.b = VK_COMPONENT_SWIZZLE_B;
+ view_info.components.a = VK_COMPONENT_SWIZZLE_A;
+ view_info.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
+ for (uint32_t i = 0; i < data->n_images; i++) {
+ view_info.image = data->images[i];
+ err = device_data->vtable.CreateImageView(device_data->device, &view_info,
+ NULL, &data->image_views[i]);
+ check_vk_result(err);
+ }
+
+ /* Framebuffers */
+ VkImageView attachment[1];
+ VkFramebufferCreateInfo fb_info = {};
+ fb_info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
+ fb_info.renderPass = data->render_pass;
+ fb_info.attachmentCount = 1;
+ fb_info.pAttachments = attachment;
+ fb_info.width = data->width;
+ fb_info.height = data->height;
+ fb_info.layers = 1;
+ for (uint32_t i = 0; i < data->n_images; i++) {
+ attachment[0] = data->image_views[i];
+ err = device_data->vtable.CreateFramebuffer(device_data->device, &fb_info,
+ NULL, &data->framebuffers[i]);
+ check_vk_result(err);
+ }
+
+ /* Command buffer */
+ VkCommandPoolCreateInfo cmd_buffer_pool_info = {};
+ cmd_buffer_pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
+ cmd_buffer_pool_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
+ cmd_buffer_pool_info.queueFamilyIndex = device_data->graphic_queue->family_index;
+ err = device_data->vtable.CreateCommandPool(device_data->device,
+ &cmd_buffer_pool_info,
+ NULL, &data->command_pool);
+ check_vk_result(err);
+
+ VkCommandBuffer cmd_bufs[ARRAY_SIZE(data->frame_data)];
+
+ VkCommandBufferAllocateInfo cmd_buffer_info = {};
+ cmd_buffer_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
+ cmd_buffer_info.commandPool = data->command_pool;
+ cmd_buffer_info.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
+ cmd_buffer_info.commandBufferCount = 2;
+ err = device_data->vtable.AllocateCommandBuffers(device_data->device,
+ &cmd_buffer_info,
+ cmd_bufs);
+ check_vk_result(err);
+
+ for (uint32_t i = 0; i < ARRAY_SIZE(data->frame_data); i++)
+ data->frame_data[i].command_buffer = cmd_bufs[i];
+
+
+ /* Submission fence */
+ VkFenceCreateInfo fence_info = {};
+ fence_info.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO;
+ fence_info.flags = VK_FENCE_CREATE_SIGNALED_BIT;
+ err = device_data->vtable.CreateFence(device_data->device, &fence_info,
+ NULL, &data->fence);
+ check_vk_result(err);
+
+}
+
+static void shutdown_swapchain_data(struct swapchain_data *data)
+{
+ struct device_data *device_data = data->device;
+
+ for (uint32_t i = 0; i < data->n_images; i++) {
+ device_data->vtable.DestroyImageView(device_data->device, data->image_views[i], NULL);
+ device_data->vtable.DestroyFramebuffer(device_data->device, data->framebuffers[i], NULL);
+ }
+
+ device_data->vtable.DestroyRenderPass(device_data->device, data->render_pass, NULL);
+
+ for (uint32_t i = 0; i < ARRAY_SIZE(data->frame_data); i++) {
+ device_data->vtable.FreeCommandBuffers(device_data->device,
+ data->command_pool,
+ 1, &data->frame_data[i].command_buffer);
+ if (data->frame_data[i].vertex_buffer)
+ device_data->vtable.DestroyBuffer(device_data->device, data->frame_data[i].vertex_buffer, NULL);
+ if (data->frame_data[i].index_buffer)
+ device_data->vtable.DestroyBuffer(device_data->device, data->frame_data[i].index_buffer, NULL);
+ if (data->frame_data[i].vertex_buffer_mem)
+ device_data->vtable.FreeMemory(device_data->device, data->frame_data[i].vertex_buffer_mem, NULL);
+ if (data->frame_data[i].index_buffer_mem)
+ device_data->vtable.FreeMemory(device_data->device, data->frame_data[i].index_buffer_mem, NULL);
+ }
+ device_data->vtable.DestroyCommandPool(device_data->device, data->command_pool, NULL);
+
+ device_data->vtable.DestroyFence(device_data->device, data->fence, NULL);
+ if (data->submission_semaphore)
+ device_data->vtable.DestroySemaphore(device_data->device, data->submission_semaphore, NULL);
+
+ device_data->vtable.DestroyPipeline(device_data->device, data->pipeline, NULL);
+ device_data->vtable.DestroyPipelineLayout(device_data->device, data->pipeline_layout, NULL);
+
+ device_data->vtable.FreeDescriptorSets(device_data->device, data->descriptor_pool,
+ 1, &data->descriptor_set);
+ device_data->vtable.DestroyDescriptorPool(device_data->device,
+ data->descriptor_pool, NULL);
+ device_data->vtable.DestroyDescriptorSetLayout(device_data->device,
+ data->descriptor_layout, NULL);
+
+ device_data->vtable.DestroySampler(device_data->device, data->font_sampler, NULL);
+ device_data->vtable.DestroyImageView(device_data->device, data->font_image_view, NULL);
+ device_data->vtable.DestroyImage(device_data->device, data->font_image, NULL);
+ device_data->vtable.FreeMemory(device_data->device, data->font_mem, NULL);
+
+ device_data->vtable.DestroyBuffer(device_data->device, data->upload_font_buffer, NULL);
+ device_data->vtable.FreeMemory(device_data->device, data->upload_font_buffer_mem, NULL);
+
+ ImGui::DestroyContext(data->imgui_context);
+}
+
+static void before_present(struct swapchain_data *swapchain_data,
+ unsigned imageIndex)
+{
+ snapshot_swapchain_frame(swapchain_data);
+
+ compute_swapchain_display(swapchain_data);
+ render_swapchain_display(swapchain_data, imageIndex);
+}
+
+VKAPI_ATTR VkResult VKAPI_CALL overlay_CreateSwapchainKHR(
+ VkDevice device,
+ const VkSwapchainCreateInfoKHR* pCreateInfo,
+ const VkAllocationCallbacks* pAllocator,
+ VkSwapchainKHR* pSwapchain)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(device);
+ VkResult result = device_data->vtable.CreateSwapchainKHR(device, pCreateInfo, pAllocator, pSwapchain);
+ if (result != VK_SUCCESS) return result;
+
+ struct swapchain_data *swapchain_data = new_swapchain_data(*pSwapchain, device_data);
+ setup_swapchain_data(swapchain_data, pCreateInfo);
+ return result;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_DestroySwapchainKHR(
+ VkDevice device,
+ VkSwapchainKHR swapchain,
+ const VkAllocationCallbacks* pAllocator)
+{
+ struct swapchain_data *swapchain_data = FIND_SWAPCHAIN_DATA(swapchain);
+
+ shutdown_swapchain_data(swapchain_data);
+ swapchain_data->device->vtable.DestroySwapchainKHR(device, swapchain, pAllocator);
+ destroy_swapchain_data(swapchain_data);
+}
+
+VKAPI_ATTR VkResult VKAPI_CALL overlay_QueuePresentKHR(
+ VkQueue queue,
+ const VkPresentInfoKHR* pPresentInfo)
+{
+ struct queue_data *queue_data = FIND_QUEUE_DATA(queue);
+ struct device_data *device_data = queue_data->device;
+
+ /* If we present on the graphic queue this layer is using to draw an
+ * overlay, we don't need more than submitting the overlay draw prior to
+ * present.
+ */
+ if (queue_data == device_data->graphic_queue) {
+ for (uint32_t i = 0; i < pPresentInfo->swapchainCount; i++) {
+ struct swapchain_data *swapchain_data = FIND_SWAPCHAIN_DATA(pPresentInfo->pSwapchains[i]);
+ before_present(swapchain_data, pPresentInfo->pImageIndices[i]);
+ }
+ return queue_data->device->vtable.QueuePresentKHR(queue, pPresentInfo);
+ }
+
+ /* Otherwise we need to do cross queue synchronization to tie the overlay
+ * draw into the present queue.
+ */
+ VkPresentInfoKHR present_info = *pPresentInfo;
+ VkSemaphore *semaphores =
+ (VkSemaphore *)malloc(sizeof(VkSemaphore) * (pPresentInfo->waitSemaphoreCount + pPresentInfo->swapchainCount));
+ for (uint32_t i = 0; i < pPresentInfo->waitSemaphoreCount; i++)
+ semaphores[i] = pPresentInfo->pWaitSemaphores[i];
+ for (uint32_t i = 0; i < pPresentInfo->swapchainCount; i++) {
+ struct swapchain_data *swapchain_data = FIND_SWAPCHAIN_DATA(pPresentInfo->pSwapchains[i]);
+ before_present(swapchain_data, pPresentInfo->pImageIndices[i]);
+ semaphores[pPresentInfo->waitSemaphoreCount + i] = swapchain_data->submission_semaphore;
+ }
+ present_info.pWaitSemaphores = semaphores;
+ present_info.waitSemaphoreCount = pPresentInfo->waitSemaphoreCount + pPresentInfo->swapchainCount;
+ VkResult result = queue_data->device->vtable.QueuePresentKHR(queue, &present_info);
+ free(semaphores);
+ return result;
+}
+
+VKAPI_ATTR VkResult VKAPI_CALL overlay_AcquireNextImageKHR(
+ VkDevice device,
+ VkSwapchainKHR swapchain,
+ uint64_t timeout,
+ VkSemaphore semaphore,
+ VkFence fence,
+ uint32_t* pImageIndex)
+{
+ struct swapchain_data *swapchain_data = FIND_SWAPCHAIN_DATA(swapchain);
+ struct device_data *device_data = swapchain_data->device;
+
+ uint64_t ts0 = os_time_get();
+ VkResult result = device_data->vtable.AcquireNextImageKHR(device, swapchain, timeout,
+ semaphore, fence, pImageIndex);
+ uint64_t ts1 = os_time_get();
+
+ swapchain_data->acquire_times[swapchain_data->n_acquire %
+ ARRAY_SIZE(swapchain_data->acquire_times)] =
+ ((double)ts1 - (double)ts0) / 1000.0;
+ swapchain_data->n_acquire++;
+
+ return result;
+}
+
+VKAPI_ATTR VkResult VKAPI_CALL overlay_AcquireNextImage2KHR(
+ VkDevice device,
+ const VkAcquireNextImageInfoKHR* pAcquireInfo,
+ uint32_t* pImageIndex)
+{
+ struct swapchain_data *swapchain_data = FIND_SWAPCHAIN_DATA(pAcquireInfo->swapchain);
+ struct device_data *device_data = swapchain_data->device;
+
+ uint64_t ts0 = os_time_get();
+ VkResult result = device_data->vtable.AcquireNextImage2KHR(device, pAcquireInfo, pImageIndex);
+ uint64_t ts1 = os_time_get();
+
+ swapchain_data->acquire_times[swapchain_data->n_acquire %
+ ARRAY_SIZE(swapchain_data->acquire_times)] =
+ ((double)ts1 - (double)ts0) / 1000.0;
+ swapchain_data->n_acquire++;
+
+ return result;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdDraw(
+ VkCommandBuffer commandBuffer,
+ uint32_t vertexCount,
+ uint32_t instanceCount,
+ uint32_t firstVertex,
+ uint32_t firstInstance)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdDraw(commandBuffer, vertexCount, instanceCount,
+ firstVertex, firstInstance);
+ device_data->stats.stats[FRAME_STAT_DRAW]++;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdDrawIndexed(
+ VkCommandBuffer commandBuffer,
+ uint32_t indexCount,
+ uint32_t instanceCount,
+ uint32_t firstIndex,
+ int32_t vertexOffset,
+ uint32_t firstInstance)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdDrawIndexed(commandBuffer, indexCount, instanceCount,
+ firstIndex, vertexOffset, firstInstance);
+ device_data->stats.stats[FRAME_STAT_DRAW_INDEXED]++;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdDrawIndirect(
+ VkCommandBuffer commandBuffer,
+ VkBuffer buffer,
+ VkDeviceSize offset,
+ uint32_t drawCount,
+ uint32_t stride)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdDrawIndirect(commandBuffer, buffer, offset, drawCount, stride);
+ device_data->stats.stats[FRAME_STAT_DRAW_INDIRECT]++;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdDrawIndexedIndirect(
+ VkCommandBuffer commandBuffer,
+ VkBuffer buffer,
+ VkDeviceSize offset,
+ uint32_t drawCount,
+ uint32_t stride)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdDrawIndexedIndirect(commandBuffer, buffer, offset, drawCount, stride);
+ device_data->stats.stats[FRAME_STAT_DRAW_INDEXED_INDIRECT]++;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdDrawIndirectCountKHR(
+ VkCommandBuffer commandBuffer,
+ VkBuffer buffer,
+ VkDeviceSize offset,
+ VkBuffer countBuffer,
+ VkDeviceSize countBufferOffset,
+ uint32_t maxDrawCount,
+ uint32_t stride)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdDrawIndirectCountKHR(commandBuffer, buffer, offset,
+ countBuffer, countBufferOffset,
+ maxDrawCount, stride);
+ device_data->stats.stats[FRAME_STAT_DRAW_INDIRECT_COUNT]++;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdDrawIndexedIndirectCountKHR(
+ VkCommandBuffer commandBuffer,
+ VkBuffer buffer,
+ VkDeviceSize offset,
+ VkBuffer countBuffer,
+ VkDeviceSize countBufferOffset,
+ uint32_t maxDrawCount,
+ uint32_t stride)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdDrawIndexedIndirectCountKHR(commandBuffer, buffer, offset,
+ countBuffer, countBufferOffset,
+ maxDrawCount, stride);
+ device_data->stats.stats[FRAME_STAT_DRAW_INDEXED_INDIRECT_COUNT]++;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdDispatch(
+ VkCommandBuffer commandBuffer,
+ uint32_t groupCountX,
+ uint32_t groupCountY,
+ uint32_t groupCountZ)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdDispatch(commandBuffer, groupCountX, groupCountY, groupCountZ);
+ device_data->stats.stats[FRAME_STAT_DISPATCH]++;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdDispatchIndirect(
+ VkCommandBuffer commandBuffer,
+ VkBuffer buffer,
+ VkDeviceSize offset)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdDispatchIndirect(commandBuffer, buffer, offset);
+ device_data->stats.stats[FRAME_STAT_DISPATCH_INDIRECT]++;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_CmdBindPipeline(
+ VkCommandBuffer commandBuffer,
+ VkPipelineBindPoint pipelineBindPoint,
+ VkPipeline pipeline)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(commandBuffer);
+ device_data->vtable.CmdBindPipeline(commandBuffer, pipelineBindPoint, pipeline);
+ switch (pipelineBindPoint) {
+ case VK_PIPELINE_BIND_POINT_GRAPHICS: device_data->stats.stats[FRAME_STAT_PIPELINE_GRAPHICS]++; break;
+ case VK_PIPELINE_BIND_POINT_COMPUTE: device_data->stats.stats[FRAME_STAT_PIPELINE_COMPUTE]++; break;
+ case VK_PIPELINE_BIND_POINT_RAY_TRACING_NV: device_data->stats.stats[FRAME_STAT_PIPELINE_RAYTRACING]++; break;
+ default: break;
+ }
+}
+
+VKAPI_ATTR VkResult VKAPI_CALL overlay_AllocateCommandBuffers(VkDevice device,
+ const VkCommandBufferAllocateInfo* pAllocateInfo,
+ VkCommandBuffer* pCommandBuffers)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(device);
+
+ VkResult result =
+ device_data->vtable.AllocateCommandBuffers(device, pAllocateInfo, pCommandBuffers);
+ if (result != VK_SUCCESS) return result;
+
+ for (uint32_t i = 0; i < pAllocateInfo->commandBufferCount; i++)
+ map_object(pCommandBuffers[i], device_data);
+
+ return result;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_FreeCommandBuffers(VkDevice device,
+ VkCommandPool commandPool,
+ uint32_t commandBufferCount,
+ const VkCommandBuffer* pCommandBuffers)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(device);
+
+ for (uint32_t i = 0; i < commandBufferCount; i++)
+ unmap_object(pCommandBuffers[i]);
+
+ device_data->vtable.FreeCommandBuffers(device, commandPool,
+ commandBufferCount, pCommandBuffers);
+}
+
+VKAPI_ATTR VkResult VKAPI_CALL overlay_QueueSubmit(
+ VkQueue queue,
+ uint32_t submitCount,
+ const VkSubmitInfo* pSubmits,
+ VkFence fence)
+{
+ struct queue_data *queue_data = FIND_QUEUE_DATA(queue);
+ struct device_data *device_data = queue_data->device;
+
+ device_data->stats.stats[FRAME_STAT_SUBMIT]++;
+
+ return device_data->vtable.QueueSubmit(queue, submitCount, pSubmits, fence);
+}
+
+VKAPI_ATTR VkResult VKAPI_CALL overlay_CreateDevice(
+ VkPhysicalDevice physicalDevice,
+ const VkDeviceCreateInfo* pCreateInfo,
+ const VkAllocationCallbacks* pAllocator,
+ VkDevice* pDevice)
+{
+ struct instance_data *instance_data = FIND_PHYSICAL_DEVICE_DATA(physicalDevice);
+ VkLayerDeviceCreateInfo *chain_info = get_chain_info(pCreateInfo, VK_LAYER_LINK_INFO);
+
+ assert(chain_info->u.pLayerInfo);
+ PFN_vkGetInstanceProcAddr fpGetInstanceProcAddr = chain_info->u.pLayerInfo->pfnNextGetInstanceProcAddr;
+ PFN_vkGetDeviceProcAddr fpGetDeviceProcAddr = chain_info->u.pLayerInfo->pfnNextGetDeviceProcAddr;
+ PFN_vkCreateDevice fpCreateDevice = (PFN_vkCreateDevice)fpGetInstanceProcAddr(NULL, "vkCreateDevice");
+ if (fpCreateDevice == NULL) {
+ return VK_ERROR_INITIALIZATION_FAILED;
+ }
+
+ // Advance the link info for the next element on the chain
+ chain_info->u.pLayerInfo = chain_info->u.pLayerInfo->pNext;
+
+ VkResult result = fpCreateDevice(physicalDevice, pCreateInfo, pAllocator, pDevice);
+ if (result != VK_SUCCESS) return result;
+
+ struct device_data *device_data = new_device_data(*pDevice, instance_data);
+ device_data->physical_device = physicalDevice;
+ layer_init_device_dispatch_table(*pDevice, &device_data->vtable, fpGetDeviceProcAddr);
+
+ instance_data->vtable.GetPhysicalDeviceProperties(device_data->physical_device,
+ &device_data->properties);
+
+ device_map_queues(device_data, pCreateInfo);
+
+ return result;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_DestroyDevice(
+ VkDevice device,
+ const VkAllocationCallbacks* pAllocator)
+{
+ struct device_data *device_data = FIND_DEVICE_DATA(device);
+ device_unmap_queues(device_data);
+ device_data->vtable.DestroyDevice(device, pAllocator);
+ destroy_device_data(device_data);
+}
+
+VKAPI_ATTR VkResult VKAPI_CALL overlay_CreateInstance(
+ const VkInstanceCreateInfo* pCreateInfo,
+ const VkAllocationCallbacks* pAllocator,
+ VkInstance* pInstance)
+{
+ VkLayerInstanceCreateInfo *chain_info = get_chain_info(pCreateInfo, VK_LAYER_LINK_INFO);
+
+ assert(chain_info->u.pLayerInfo);
+ PFN_vkGetInstanceProcAddr fpGetInstanceProcAddr =
+ chain_info->u.pLayerInfo->pfnNextGetInstanceProcAddr;
+ PFN_vkCreateInstance fpCreateInstance =
+ (PFN_vkCreateInstance)fpGetInstanceProcAddr(NULL, "vkCreateInstance");
+ if (fpCreateInstance == NULL) {
+ return VK_ERROR_INITIALIZATION_FAILED;
+ }
+
+ // Advance the link info for the next element on the chain
+ chain_info->u.pLayerInfo = chain_info->u.pLayerInfo->pNext;
+
+ VkResult result = fpCreateInstance(pCreateInfo, pAllocator, pInstance);
+ if (result != VK_SUCCESS) return result;
+
+ struct instance_data *instance_data = new_instance_data(*pInstance);
+ layer_init_instance_dispatch_table(instance_data->instance,
+ &instance_data->vtable,
+ fpGetInstanceProcAddr);
+ instance_data_map_physical_devices(instance_data, true);
+
+ const char *stats_config = getenv("VK_LAYER_MESA_OVERLAY_STATS");
+ instance_data->enabled_stats = parse_debug_string(stats_config,
+ enable_flags);
+
+ if (instance_data->enabled_stats & FRAME_STAT_ENABLED(HELP)) {
+ fprintf(stderr, "Available stats:\n");
+ for (uint32_t i = 0; enable_flags[i].string != NULL; i++)
+ fprintf(stderr, "\t%s\n", enable_flags[i].string);
+ fprintf(stderr, "Position layer using VK_LAYER_MESA_OVERLAY_POSITION=\n"
+ "\ttop-left\n"
+ "\ttop-right\n"
+ "\tbottom-left\n"
+ "\tbottom-right\n");
+ }
+
+ instance_data->position =
+ parse_layer_position(getenv("VK_LAYER_MESA_OVERLAY_POSITION"));
+
+ return result;
+}
+
+VKAPI_ATTR void VKAPI_CALL overlay_DestroyInstance(
+ VkInstance instance,
+ const VkAllocationCallbacks* pAllocator)
+{
+ struct instance_data *instance_data = FIND_INSTANCE_DATA(instance);
+ instance_data_map_physical_devices(instance_data, false);
+ instance_data->vtable.DestroyInstance(instance, pAllocator);
+ destroy_instance_data(instance_data);
+}
+
+static const struct {
+ const char *name;
+ void *ptr;
+} name_to_funcptr_map[] = {
+ { "vkGetDeviceProcAddr", (void *) vkGetDeviceProcAddr },
+#define ADD_HOOK(fn) { "vk" # fn, (void *) overlay_ ## fn }
+ ADD_HOOK(AllocateCommandBuffers),
+
+ ADD_HOOK(CmdDraw),
+ ADD_HOOK(CmdDrawIndexed),
+ ADD_HOOK(CmdDrawIndexedIndirect),
+ ADD_HOOK(CmdDispatch),
+ ADD_HOOK(CmdDispatchIndirect),
+ ADD_HOOK(CmdDrawIndirectCountKHR),
+ ADD_HOOK(CmdDrawIndexedIndirectCountKHR),
+
+ ADD_HOOK(CmdBindPipeline),
+
+ ADD_HOOK(CreateSwapchainKHR),
+ ADD_HOOK(QueuePresentKHR),
+ ADD_HOOK(DestroySwapchainKHR),
+ ADD_HOOK(AcquireNextImageKHR),
+ ADD_HOOK(AcquireNextImage2KHR),
+
+ ADD_HOOK(QueueSubmit),
+ ADD_HOOK(CreateInstance),
+ ADD_HOOK(DestroyInstance),
+ ADD_HOOK(CreateDevice),
+ ADD_HOOK(DestroyDevice),
+#undef ADD_HOOK
+};
+
+static void *find_ptr(const char *name)
+{
+ for (uint32_t i = 0; i < ARRAY_SIZE(name_to_funcptr_map); i++) {
+ if (strcmp(name, name_to_funcptr_map[i].name) == 0)
+ return name_to_funcptr_map[i].ptr;
+ }
+
+ return NULL;
+}
+
+VK_LAYER_EXPORT VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL vkGetDeviceProcAddr(VkDevice dev,
+ const char *funcName)
+{
+ void *ptr = find_ptr(funcName);
+ if (ptr) return reinterpret_cast<PFN_vkVoidFunction>(ptr);
+
+ if (dev == NULL) return NULL;
+
+ struct device_data *device_data = FIND_DEVICE_DATA(dev);
+ if (device_data->vtable.GetDeviceProcAddr == NULL) return NULL;
+ return device_data->vtable.GetDeviceProcAddr(dev, funcName);
+}
+
+VK_LAYER_EXPORT VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL vkGetInstanceProcAddr(VkInstance instance,
+ const char *funcName)
+{
+ void *ptr = find_ptr(funcName);
+ if (ptr) return reinterpret_cast<PFN_vkVoidFunction>(ptr);
+
+ if (instance == NULL) return NULL;
+
+ struct instance_data *instance_data = FIND_INSTANCE_DATA(instance);
+ if (instance_data->vtable.GetInstanceProcAddr == NULL) return NULL;
+ return instance_data->vtable.GetInstanceProcAddr(instance, funcName);
+}
diff --git a/src/vulkan/overlay-layer/overlay.frag b/src/vulkan/overlay-layer/overlay.frag
new file mode 100644
index 00000000000..313a8880410
--- /dev/null
+++ b/src/vulkan/overlay-layer/overlay.frag
@@ -0,0 +1,14 @@
+#version 450 core
+layout(location = 0) out vec4 fColor;
+
+layout(set=0, binding=0) uniform sampler2D sTexture;
+
+layout(location = 0) in struct{
+ vec4 Color;
+ vec2 UV;
+} In;
+
+void main()
+{
+ fColor = In.Color * texture(sTexture, In.UV.st);
+}
diff --git a/src/vulkan/overlay-layer/overlay.vert b/src/vulkan/overlay-layer/overlay.vert
new file mode 100644
index 00000000000..20b29082780
--- /dev/null
+++ b/src/vulkan/overlay-layer/overlay.vert
@@ -0,0 +1,25 @@
+#version 450 core
+layout(location = 0) in vec2 aPos;
+layout(location = 1) in vec2 aUV;
+layout(location = 2) in vec4 aColor;
+
+layout(push_constant) uniform uPushConstant{
+ vec2 uScale;
+ vec2 uTranslate;
+} pc;
+
+out gl_PerVertex{
+ vec4 gl_Position;
+};
+
+layout(location = 0) out struct{
+ vec4 Color;
+ vec2 UV;
+} Out;
+
+void main()
+{
+ Out.Color = aColor;
+ Out.UV = aUV;
+ gl_Position = vec4(aPos*pc.uScale+pc.uTranslate, 0, 1);
+}
diff --git a/src/vulkan/overlay-layer/vk_layer_table.cpp b/src/vulkan/overlay-layer/vk_layer_table.cpp
new file mode 100644
index 00000000000..4a033b9add6
--- /dev/null
+++ b/src/vulkan/overlay-layer/vk_layer_table.cpp
@@ -0,0 +1,146 @@
+/* Copyright (c) 2015-2016 The Khronos Group Inc.
+ * Copyright (c) 2015-2016 Valve Corporation
+ * Copyright (c) 2015-2016 LunarG, Inc.
+ * Copyright (c) 2015-2016 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Author: Tobin Ehlis <tobin@lunarg.com>
+ */
+#include <assert.h>
+#include <unordered_map>
+#include "vk_dispatch_table_helper.h"
+#include "vulkan/vk_layer.h"
+#include "vk_layer_table.h"
+static device_table_map tableMap;
+static instance_table_map tableInstanceMap;
+
+// Map lookup must be thread safe
+VkLayerDispatchTable *device_dispatch_table(void *object) {
+ dispatch_key key = get_dispatch_key(object);
+ device_table_map::const_iterator it = tableMap.find((void *)key);
+ assert(it != tableMap.end() && "Not able to find device dispatch entry");
+ return it->second;
+}
+
+VkLayerInstanceDispatchTable *instance_dispatch_table(void *object) {
+ dispatch_key key = get_dispatch_key(object);
+ instance_table_map::const_iterator it = tableInstanceMap.find((void *)key);
+ assert(it != tableInstanceMap.end() && "Not able to find instance dispatch entry");
+ return it->second;
+}
+
+void destroy_dispatch_table(device_table_map &map, dispatch_key key) {
+ device_table_map::const_iterator it = map.find((void *)key);
+ if (it != map.end()) {
+ delete it->second;
+ map.erase(it);
+ }
+}
+
+void destroy_dispatch_table(instance_table_map &map, dispatch_key key) {
+ instance_table_map::const_iterator it = map.find((void *)key);
+ if (it != map.end()) {
+ delete it->second;
+ map.erase(it);
+ }
+}
+
+void destroy_device_dispatch_table(dispatch_key key) { destroy_dispatch_table(tableMap, key); }
+
+void destroy_instance_dispatch_table(dispatch_key key) { destroy_dispatch_table(tableInstanceMap, key); }
+
+VkLayerDispatchTable *get_dispatch_table(device_table_map &map, void *object) {
+ dispatch_key key = get_dispatch_key(object);
+ device_table_map::const_iterator it = map.find((void *)key);
+ assert(it != map.end() && "Not able to find device dispatch entry");
+ return it->second;
+}
+
+VkLayerInstanceDispatchTable *get_dispatch_table(instance_table_map &map, void *object) {
+ dispatch_key key = get_dispatch_key(object);
+ instance_table_map::const_iterator it = map.find((void *)key);
+ assert(it != map.end() && "Not able to find instance dispatch entry");
+ return it->second;
+}
+
+VkLayerInstanceCreateInfo *get_chain_info(const VkInstanceCreateInfo *pCreateInfo, VkLayerFunction func) {
+ VkLayerInstanceCreateInfo *chain_info = (VkLayerInstanceCreateInfo *)pCreateInfo->pNext;
+ while (chain_info && !(chain_info->sType == VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO && chain_info->function == func)) {
+ chain_info = (VkLayerInstanceCreateInfo *)chain_info->pNext;
+ }
+ assert(chain_info != NULL);
+ return chain_info;
+}
+
+VkLayerDeviceCreateInfo *get_chain_info(const VkDeviceCreateInfo *pCreateInfo, VkLayerFunction func) {
+ VkLayerDeviceCreateInfo *chain_info = (VkLayerDeviceCreateInfo *)pCreateInfo->pNext;
+ while (chain_info && !(chain_info->sType == VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO && chain_info->function == func)) {
+ chain_info = (VkLayerDeviceCreateInfo *)chain_info->pNext;
+ }
+ assert(chain_info != NULL);
+ return chain_info;
+}
+
+/* Various dispatchable objects will use the same underlying dispatch table if they
+ * are created from that "parent" object. Thus use pointer to dispatch table
+ * as the key to these table maps.
+ * Instance -> PhysicalDevice
+ * Device -> CommandBuffer or Queue
+ * If use the object themselves as key to map then implies Create entrypoints have to be intercepted
+ * and a new key inserted into map */
+VkLayerInstanceDispatchTable *initInstanceTable(VkInstance instance, const PFN_vkGetInstanceProcAddr gpa, instance_table_map &map) {
+ VkLayerInstanceDispatchTable *pTable;
+ dispatch_key key = get_dispatch_key(instance);
+ instance_table_map::const_iterator it = map.find((void *)key);
+
+ if (it == map.end()) {
+ pTable = new VkLayerInstanceDispatchTable;
+ map[(void *)key] = pTable;
+ } else {
+ return it->second;
+ }
+
+ layer_init_instance_dispatch_table(instance, pTable, gpa);
+
+ // Setup func pointers that are required but not externally exposed. These won't be added to the instance dispatch table by
+ // default.
+ pTable->GetPhysicalDeviceProcAddr = (PFN_GetPhysicalDeviceProcAddr)gpa(instance, "vk_layerGetPhysicalDeviceProcAddr");
+
+ return pTable;
+}
+
+VkLayerInstanceDispatchTable *initInstanceTable(VkInstance instance, const PFN_vkGetInstanceProcAddr gpa) {
+ return initInstanceTable(instance, gpa, tableInstanceMap);
+}
+
+VkLayerDispatchTable *initDeviceTable(VkDevice device, const PFN_vkGetDeviceProcAddr gpa, device_table_map &map) {
+ VkLayerDispatchTable *pTable;
+ dispatch_key key = get_dispatch_key(device);
+ device_table_map::const_iterator it = map.find((void *)key);
+
+ if (it == map.end()) {
+ pTable = new VkLayerDispatchTable;
+ map[(void *)key] = pTable;
+ } else {
+ return it->second;
+ }
+
+ layer_init_device_dispatch_table(device, pTable, gpa);
+
+ return pTable;
+}
+
+VkLayerDispatchTable *initDeviceTable(VkDevice device, const PFN_vkGetDeviceProcAddr gpa) {
+ return initDeviceTable(device, gpa, tableMap);
+}
diff --git a/src/vulkan/overlay-layer/vk_layer_table.h b/src/vulkan/overlay-layer/vk_layer_table.h
new file mode 100644
index 00000000000..45b8f6e1770
--- /dev/null
+++ b/src/vulkan/overlay-layer/vk_layer_table.h
@@ -0,0 +1,51 @@
+/* Copyright (c) 2015-2016 The Khronos Group Inc.
+ * Copyright (c) 2015-2016 Valve Corporation
+ * Copyright (c) 2015-2016 LunarG, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Author: Tobin Ehlis <tobin@lunarg.com>
+ */
+
+#pragma once
+
+#include "vulkan/vk_layer.h"
+#include "vulkan/vulkan.h"
+#include <unordered_map>
+
+typedef std::unordered_map<void *, VkLayerDispatchTable *> device_table_map;
+typedef std::unordered_map<void *, VkLayerInstanceDispatchTable *> instance_table_map;
+VkLayerDispatchTable *initDeviceTable(VkDevice device, const PFN_vkGetDeviceProcAddr gpa, device_table_map &map);
+VkLayerDispatchTable *initDeviceTable(VkDevice device, const PFN_vkGetDeviceProcAddr gpa);
+VkLayerInstanceDispatchTable *initInstanceTable(VkInstance instance, const PFN_vkGetInstanceProcAddr gpa, instance_table_map &map);
+VkLayerInstanceDispatchTable *initInstanceTable(VkInstance instance, const PFN_vkGetInstanceProcAddr gpa);
+
+typedef void *dispatch_key;
+
+static inline dispatch_key get_dispatch_key(const void *object) { return (dispatch_key) * (VkLayerDispatchTable **)object; }
+
+VkLayerDispatchTable *device_dispatch_table(void *object);
+
+VkLayerInstanceDispatchTable *instance_dispatch_table(void *object);
+
+VkLayerDispatchTable *get_dispatch_table(device_table_map &map, void *object);
+
+VkLayerInstanceDispatchTable *get_dispatch_table(instance_table_map &map, void *object);
+
+VkLayerInstanceCreateInfo *get_chain_info(const VkInstanceCreateInfo *pCreateInfo, VkLayerFunction func);
+VkLayerDeviceCreateInfo *get_chain_info(const VkDeviceCreateInfo *pCreateInfo, VkLayerFunction func);
+
+void destroy_device_dispatch_table(dispatch_key key);
+void destroy_instance_dispatch_table(dispatch_key key);
+void destroy_dispatch_table(device_table_map &map, dispatch_key key);
+void destroy_dispatch_table(instance_table_map &map, dispatch_key key);