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// Copyright (c) 2018-2026 Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
//
// This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
#ifndef SURFACE_INTERNAL_H
#define SURFACE_INTERNAL_H
#include "vkvg_internal.h"
#include "vkvg.h"
#include "vkh.h"
#include "vkh_buffer.h"
#define MAX_GRAD 5
typedef struct _surface_class {
atomic_int references;
VkvgDevice dev;
VkFormat format;
VkSampleCountFlags samples; /**< samples count */
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*/
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 */
} surface_class;
typedef struct _vkvg_surface_t {
vkvg_status_t status; /**< Current status of surface, affected by last operation */
atomic_int references;
VkvgDevice dev;
uint32_t width;
uint32_t height;
VkFramebuffer fb;
VkhImage img;
VkhImage imgMS;
VkhImage stencil;
VkCommandPool cmdPool; // local pools ensure thread safety
VkCommandBuffer cmd; // surface local command buffer.
bool newSurf;
mtx_t mutex;
#ifdef VKVG_ENABLE_VK_TIMELINE_SEMAPHORE
VkSemaphore timeline; /**< Timeline semaphore */
uint64_t timelineStep;
#else
VkFence flushFence; // unsignaled idle.
#endif
int hdpi, // only used for FreeType fonts and svg loading */
vdpi;
surface_class *surfClass;
VkDescriptorPool descPool;
VkDescriptorSet dsGradient;
vkh_buffer_t uboGrad; // uniform buff obj holdings gradient infos
uint32_t gradCount; // recorded grad draws in current command
} vkvg_surface;
#define LOCK_SURFACE(surf) \
if (surf->dev->threadAware) { \
mtx_lock(&surf->mutex); \
}
#define UNLOCK_SURFACE(surf) \
if (surf->dev->threadAware) { \
mtx_unlock(&surf->mutex); \
}
void _explicit_ms_resolve(VkvgSurface surf);
void _transition_surf_images(VkvgSurface surf);
void _clear_surface(VkvgSurface surf, VkImageAspectFlags aspect);
void _create_surface_main_image(VkvgSurface surf);
void _create_surface_secondary_images(VkvgSurface surf);
void _create_framebuffer(VkvgSurface surf);
void _create_surface_images(VkvgSurface surf);
VkvgSurface _create_surface(VkvgDevice dev, VkFormat format, VkSampleCountFlags samples);
void _surface_submit_cmd(VkvgSurface surf);
void _destroy_surface_class (surface_class* surf);
// bool _surface_wait_cmd (VkvgSurface surf);
#endif
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