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#include <vulkan/vulkan.h>
#include <spa/buffer/buffer.h>
#include <spa/node/node.h>
#define MAX_STREAMS 2
#define MAX_BUFFERS 16
#define WORKGROUP_SIZE 32
struct pixel {
float r, g, b, a;
};
struct push_constants {
float time;
int frame;
int width;
int height;
};
struct vulkan_buffer {
int fd;
VkImage image;
VkImageView view;
VkDeviceMemory memory;
};
struct vulkan_stream {
enum spa_direction direction;
uint32_t pending_buffer_id;
uint32_t current_buffer_id;
uint32_t busy_buffer_id;
uint32_t ready_buffer_id;
struct vulkan_buffer buffers[MAX_BUFFERS];
uint32_t n_buffers;
};
struct vulkan_state {
struct spa_log *log;
struct push_constants constants;
VkInstance instance;
VkPhysicalDevice physicalDevice;
VkDevice device;
VkPipeline pipeline;
VkPipelineLayout pipelineLayout;
const char *shaderName;
VkShaderModule computeShaderModule;
VkCommandPool commandPool;
VkCommandBuffer commandBuffer;
VkQueue queue;
uint32_t queueFamilyIndex;
VkFence fence;
unsigned int prepared:1;
unsigned int started:1;
VkDescriptorPool descriptorPool;
VkDescriptorSetLayout descriptorSetLayout;
VkSampler sampler;
uint32_t n_streams;
VkDescriptorSet descriptorSet;
struct vulkan_stream streams[MAX_STREAMS];
};
int spa_vulkan_init_stream(struct vulkan_state *s, struct vulkan_stream *stream, enum spa_direction,
struct spa_dict *props);
int spa_vulkan_prepare(struct vulkan_state *s);
int spa_vulkan_use_buffers(struct vulkan_state *s, struct vulkan_stream *stream, uint32_t flags,
uint32_t n_buffers, struct spa_buffer **buffers);
int spa_vulkan_unprepare(struct vulkan_state *s);
int spa_vulkan_start(struct vulkan_state *s);
int spa_vulkan_stop(struct vulkan_state *s);
int spa_vulkan_ready(struct vulkan_state *s);
int spa_vulkan_process(struct vulkan_state *s);
int spa_vulkan_cleanup(struct vulkan_state *s);
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