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/*
* Copyright (c) 2018-2022 Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
*
* 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.
*/
#ifndef VKVG_DEVICE_INTERNAL_H
#define VKVG_DEVICE_INTERNAL_H
#include "vkvg_internal.h"
#include "vkvg.h"
#include "vkvg_fonts.h"
#define STENCIL_FILL_BIT 0x1
#define STENCIL_CLIP_BIT 0x2
#define STENCIL_ALL_BIT 0x3
#define VKVG_PTS_SIZE 1024
#define VKVG_VBO_SIZE (VKVG_PTS_SIZE * 4)
#define VKVG_IBO_SIZE (VKVG_VBO_SIZE * 6)
#define VKVG_PATHES_SIZE 16
#define VKVG_ARRAY_THRESHOLD 8
#define VKVG_IBO_16 0
#define VKVG_IBO_32 1
#define VKVG_CUR_IBO_TYPE VKVG_IBO_32//change this only
#if VKVG_CUR_IBO_TYPE == VKVG_IBO_16
#define VKVG_IBO_MAX UINT16_MAX
#define VKVG_IBO_INDEX_TYPE uint16_t
#define VKVG_VK_INDEX_TYPE VK_INDEX_TYPE_UINT16
#else
#define VKVG_IBO_MAX UINT32_MAX
#define VKVG_IBO_INDEX_TYPE uint32_t
#define VKVG_VK_INDEX_TYPE VK_INDEX_TYPE_UINT32
#endif
extern PFN_vkCmdBindPipeline CmdBindPipeline;
extern PFN_vkCmdBindDescriptorSets CmdBindDescriptorSets;
extern PFN_vkCmdBindIndexBuffer CmdBindIndexBuffer;
extern PFN_vkCmdBindVertexBuffers CmdBindVertexBuffers;
extern PFN_vkCmdDrawIndexed CmdDrawIndexed;
extern PFN_vkCmdDraw CmdDraw;
extern PFN_vkCmdSetStencilCompareMask CmdSetStencilCompareMask;
extern PFN_vkCmdSetStencilReference CmdSetStencilReference;
extern PFN_vkCmdSetStencilWriteMask CmdSetStencilWriteMask;
extern PFN_vkCmdBeginRenderPass CmdBeginRenderPass;
extern PFN_vkCmdEndRenderPass CmdEndRenderPass;
extern PFN_vkCmdSetViewport CmdSetViewport;
extern PFN_vkCmdSetScissor CmdSetScissor;
extern PFN_vkCmdPushConstants CmdPushConstants;
extern PFN_vkWaitForFences WaitForFences;
extern PFN_vkResetFences ResetFences;
extern PFN_vkResetCommandBuffer ResetCommandBuffer;
typedef struct{
vec2 pos;
uint32_t color;
vec3 uv;
}Vertex;
//per thread vulkan object used in contexts
typedef struct _vkvg_device_thread_items_t {
thrd_t id;
bool inUse;
VkvgDevice dev;
VkDescriptorPool descriptorPool; //one pool per thread
VkDescriptorSet dsGrad; //gradient uniform buffer
VkDescriptorSet dsFont; //fonts glyphs texture atlas descriptor (local for thread safety)
VkDescriptorSet dsSrc; //source ds
vkvg_buff uboGrad; //uniform buff obj holdings gradient infos
//vk buffers, holds data until flush
vkvg_buff indices; //index buffer with persistent map memory
uint32_t sizeIBO; //size of vk ibo
vkvg_buff vertices; //vertex buffer with persistent mapped memory
uint32_t sizeVBO; //size of vk vbo size
uint32_t sizeIndices; //reserved size
uint32_t sizeVertices; //reserved size
Vertex* vertexCache;
VKVG_IBO_INDEX_TYPE* indexCache;
//pathes, exists until stroke of fill
vec2* points; //points array
uint32_t sizePoints; //reserved size
//pathes array is a list of point count per segment
uint32_t* pathes;
uint32_t sizePathes;
struct _vkvg_device_thread_items_t* next;
}vkvg_device_thread_items_t;
typedef struct _vkvg_device_t{
VkDevice vkDev; /**< Vulkan Logical Device */
VkPhysicalDeviceMemoryProperties phyMemProps; /**< Vulkan Physical device memory properties */
VkPhysicalDevice phy; /**< Vulkan Physical device */
VmaAllocator allocator; /**< Vulkan Memory allocator */
VkInstance instance; /**< Vulkan instance */
VkImageTiling supportedTiling; /**< Supported image tiling for surface, 0xFF=no support */
VkFormat stencilFormat; /**< Supported vulkan image format for stencil */
VkhQueue gQueue; /**< Vulkan Queue with Graphic flag */
MUTEX gQMutex; /**< queue submission has to be externally syncronized */
VkRenderPass renderPass; /**< Vulkan render pass, common for all surfaces */
VkRenderPass renderPass_ClearStencil;/**< Vulkan render pass for first draw with context, stencil has to be cleared */
VkRenderPass renderPass_ClearAll; /**< Vulkan render pass for new surface, clear all attacments*/
uint32_t references; /**< Reference count, prevent destroying device if still in use */
VkCommandPool cmdPool; /**< Global command pool for processing on surfaces without context */
VkCommandBuffer cmd; /**< Global command buffer */
VkFence fence; /**< this fence is kept signaled when idle, wait and reset are called before each recording. */
VkPipeline pipe_OVER; /**< default operator */
VkPipeline pipe_SUB;
VkPipeline pipe_CLEAR; /**< clear operator */
VkPipeline pipelinePolyFill; /**< even-odd polygon filling first step */
VkPipeline pipelineClipping; /**< draw on stencil to update clipping regions */
#ifdef VKVG_WIRED_DEBUG
VkPipeline pipelineWired;
VkPipeline pipelineLineList;
#endif
#if VKVG_DBG_STATS
vkvg_debug_stats_t debug_stats; /**< debug statistics on memory usage and vulkan ressources */
#endif
VkPipelineCache pipelineCache; /**< speed up startup by caching configured pipelines on disk */
VkPipelineLayout pipelineLayout; /**< layout common to all pipelines */
VkDescriptorSetLayout dslFont; /**< font cache descriptors layout */
VkDescriptorSetLayout dslSrc; /**< context source surface descriptors layout */
VkDescriptorSetLayout dslGrad; /**< context gradient descriptors layout */
int hdpi, /**< only used for FreeType fonts and svg loading */
vdpi;
VkhDevice vkhDev; /**< old VkhDev created during vulkan context creation by @ref vkvg_device_create. */
VkhImage emptyImg; /**< prevent unbound descriptor to trigger Validation error 61 */
VkSampleCountFlags samples; /**< samples count common to all surfaces */
bool deferredResolve; /**< if true, resolve only on context destruction and set as source */
vkvg_status_t status; /**< Current status of device, affected by last operation */
_font_cache_t* fontCache; /**< Store everything relative to common font caching system */
VkvgContext lastCtx; /**< last element of double linked list of context, used to trigger font caching system update on all contexts*/
vkvg_device_thread_items_t* threaded_objects;
}vkvg_device;
bool _try_get_phyinfo (VkhPhyInfo* phys, uint32_t phyCount, VkPhysicalDeviceType gpuType, VkhPhyInfo* phy);
bool _init_function_pointers (VkvgDevice dev);
void _create_empty_texture (VkvgDevice dev, VkFormat format, VkImageTiling tiling);
void _get_best_image_tiling (VkvgDevice dev, VkFormat format, VkImageTiling* pTiling);
void _check_best_image_tiling (VkvgDevice dev, VkFormat format);
void _create_pipeline_cache (VkvgDevice dev);
VkRenderPass _createRenderPassMS(VkvgDevice dev, VkAttachmentLoadOp loadOp, VkAttachmentLoadOp stencilLoadOp);
VkRenderPass _createRenderPassNoResolve(VkvgDevice dev, VkAttachmentLoadOp loadOp, VkAttachmentLoadOp stencilLoadOp);
void _setupPipelines (VkvgDevice dev);
void _createDescriptorSetLayout (VkvgDevice dev);
void _flush_all_contexes (VkvgDevice dev);
void _wait_idle (VkvgDevice dev);
void _wait_and_reset_device_fence (VkvgDevice dev);
void _submit_cmd (VkvgDevice dev, VkCommandBuffer* cmd, VkFence fence);
bool _instance_extension_supported (const char* instanceName);
void _instance_extensions_check_init ();
void _instance_extensions_check_release ();
bool _layer_is_present (const char* layerName);
void _layers_check_init ();
void _layers_check_release ();
vkvg_device_thread_items_t* _get_or_create_threaded_objects (VkvgDevice dev, thrd_t id);
void _delete_threaded_object (VkvgDevice dev, vkvg_device_thread_items_t* throbjs);
void _update_descriptor_set (vkvg_device_thread_items_t*, VkhImage img, VkDescriptorSet ds);
void _resize_vbo (vkvg_device_thread_items_t* ctx, uint32_t new_size);
void _resize_ibo (vkvg_device_thread_items_t* ctx, size_t new_size);
#endif
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