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vkext.h
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vkext.h
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#ifndef VKEXT_H
#define VKEXT_H
#include <inttypes.h>
#include <vulkan/vulkan.h>
#include "acg/sys.h"
#include "acg/types.h"
#define STYPE(NAME) .sType = VK_STRUCTURE_TYPE_ ## NAME ,
#define AK_MEM_PROP(STR) VK_MEMORY_PROPERTY_ ## STR ## _BIT
static const char *ak_mem_prop_flag_str(int flag)
{
switch (flag) {
case AK_MEM_PROP(DEVICE_LOCAL):
return "device-local";
case AK_MEM_PROP(HOST_VISIBLE):
return "host-visible";
case AK_MEM_PROP(HOST_COHERENT):
return "host-coherent";
case AK_MEM_PROP(HOST_CACHED):
return "host-cached";
case AK_MEM_PROP(LAZILY_ALLOCATED):
return "lazily-allocated";
case AK_MEM_PROP(PROTECTED):
return "protected";
default:
return "unknown-flag";
}
}
static const char *ak_dev_type_str(int e)
{
switch (e) {
case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
return "integrated";
case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
return "discrete";
case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
return "virtual";
case VK_PHYSICAL_DEVICE_TYPE_CPU:
return "cpu";
default:
return "unknown-device-type";
}
}
static void ak_print_props_mem(VkMemoryPropertyFlags prop_mask, const char *format)
{
u32 j = 0;
while (prop_mask) {
if (prop_mask & 1) {
printf(format, ak_mem_prop_flag_str(1 << j));
}
prop_mask >>= 1;
++j;
}
}
static u32 ak_mem_type_idx(
VkPhysicalDeviceMemoryProperties props_mem,
u32 type_mask,
VkMemoryPropertyFlags prop_mask
) {
printf("\t| ");
ak_print_props_mem(prop_mask, "%s ");
printf("\n");
for (u32 i = 0; i < props_mem.memoryTypeCount; ++i) {
int compat = type_mask & (1 << i);
if (!compat) continue;
VkMemoryType t = props_mem.memoryTypes[i];
VkMemoryPropertyFlags flags = t.propertyFlags;
compat = prop_mask == (flags & prop_mask);
if (!compat) continue;
printf("\t| using memory type %u\n", i);
return i;
}
panic_msg("no compatible memory type found");
return -1;
}
static inline u64 ak_align_up(u64 size, u64 align)
{
--align;
return (size + align) & ~align;
}
struct ak_img {
VkImage img;
VkDeviceMemory mem;
VkMemoryRequirements req;
VkImageView view;
};
#define AK_IMG_USAGE(STR) VK_IMAGE_USAGE_ ## STR ## _BIT
#define AK_IMG_HEAD(HANDLE) \
printf("Making " HANDLE " image\n")
#define AK_IMG_MK(DEV, MEM, HANDLE, W, H, S, FORMAT, USAGE, ASPECT, OUT) \
{ \
AK_IMG_HEAD(HANDLE); \
ak_img_mk( \
DEV, \
MEM, \
W, H, S, \
FORMAT, \
USAGE, \
VK_IMAGE_ASPECT_ ## ASPECT ## _BIT, \
OUT \
); \
}
static void ak_img_mk(
VkDevice dev,
VkPhysicalDeviceMemoryProperties mem_info,
u32 width, u32 height,
VkSampleCountFlagBits sample_n,
VkFormat format,
VkImageUsageFlags usage,
VkImageAspectFlags aspect,
struct ak_img *const out
) {
VkResult err;
VkImageCreateInfo img_create_info = {
STYPE(IMAGE_CREATE_INFO)
.flags = 0,
.imageType = VK_IMAGE_TYPE_2D,
.format = format,
.extent = { width, height, 1 },
.mipLevels = 1,
.arrayLayers = 1,
.samples = sample_n ?: VK_SAMPLE_COUNT_1_BIT,
.tiling = VK_IMAGE_TILING_OPTIMAL,
.usage = usage,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
.queueFamilyIndexCount = 0,
.pQueueFamilyIndices = NULL,
.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
.pNext = NULL,
};
VkImage img;
err = vkCreateImage(dev, &img_create_info, NULL, &img);
if (err != VK_SUCCESS) {
panic_msg("unable to create image");
}
printf("\t. created\n");
VkMemoryRequirements req;
vkGetImageMemoryRequirements(dev, img, &req);
VkMemoryAllocateInfo alloc_info = {
STYPE(MEMORY_ALLOCATE_INFO)
.allocationSize = req.size,
.memoryTypeIndex = ak_mem_type_idx(
mem_info,
req.memoryTypeBits,
// All images are currently host-inaccessible
AK_MEM_PROP(DEVICE_LOCAL)
),
.pNext = NULL,
};
VkDeviceMemory mem;
err = vkAllocateMemory(dev, &alloc_info, NULL, &mem);
if (err != VK_SUCCESS) {
panic_msg("unable to allocate memory for image");
}
vkBindImageMemory(dev, img, mem, 0);
if (err != VK_SUCCESS) {
panic_msg("unable to bind image memory");
}
printf("\t. allocated\n");
VkImageView view;
VkImageViewCreateInfo view_create_info = {
STYPE(IMAGE_VIEW_CREATE_INFO)
.flags = 0,
.viewType = VK_IMAGE_VIEW_TYPE_2D,
.format = format,
.components = {
VK_COMPONENT_SWIZZLE_IDENTITY,
},
.subresourceRange = {
.aspectMask = aspect,
.baseMipLevel = 0,
.levelCount = 1,
.baseArrayLayer = 0,
.layerCount = 1,
},
.pNext = NULL,
};
view_create_info.image = img;
err = vkCreateImageView(dev, &view_create_info, NULL, &view);
if (err != VK_SUCCESS) {
panic_msg("unable to create image view");
}
out->img = img;
out->mem = mem;
out->req = req;
out->view = view;
}
static void ak_img_free(VkDevice dev, struct ak_img ak)
{
vkDestroyImage(dev, ak.img, NULL);
vkDestroyImageView(dev, ak.view, NULL);
vkFreeMemory(dev, ak.mem, NULL);
}
struct ak_buf {
VkBuffer buf;
VkDeviceMemory mem;
VkDeviceSize size;
VkMemoryRequirements alloc_info;
};
#define AK_BUF_HEAD(HANDLE, SZ) \
printf("Making " HANDLE " buffer with size %zu\n", (size_t)SZ)
#define AK_BUF_USAGE(STR) VK_BUFFER_USAGE_ ## STR ## _BIT
#define AK_BUF_MK(DEV, MEM, HANDLE, SZ, USAGE, PROPS, OUT) \
{ \
AK_BUF_HEAD(HANDLE, SZ); \
ak_buf_mk(DEV, MEM, SZ, AK_BUF_USAGE(USAGE), PROPS, OUT); \
}
static void ak_buf_mk(
VkDevice dev,
VkPhysicalDeviceMemoryProperties mem_info,
VkDeviceSize size,
VkBufferUsageFlags usage,
VkMemoryPropertyFlags props_mem,
struct ak_buf *out
) {
VkResult err;
VkBufferCreateInfo buf_create_info = {
STYPE(BUFFER_CREATE_INFO)
.flags = 0,
.size = size,
.usage = usage,
.sharingMode = VK_SHARING_MODE_EXCLUSIVE,
.queueFamilyIndexCount = 0,
.pQueueFamilyIndices = NULL,
.pNext = NULL,
};
VkBuffer buf;
err = vkCreateBuffer(dev, &buf_create_info, NULL, &buf);
if (err != VK_SUCCESS) {
panic_msg("unable to create buffer");
}
printf("\t. created\n");
VkMemoryRequirements req;
vkGetBufferMemoryRequirements(dev, buf, &req);
if (size != req.size) {
assert(req.size > size);
printf("\t| aligned up to %" PRIu64 "\n", req.size);
}
VkMemoryAllocateInfo alloc_info = {
STYPE(MEMORY_ALLOCATE_INFO)
.allocationSize = req.size,
.memoryTypeIndex = ak_mem_type_idx(
mem_info,
req.memoryTypeBits,
props_mem
),
.pNext = NULL,
};
VkDeviceMemory mem;
err = vkAllocateMemory(dev, &alloc_info, NULL, &mem);
if (err != VK_SUCCESS) {
panic_msg("unable to allocate memory for buffer");
}
err = vkBindBufferMemory(dev, buf, mem, 0);
if (err != VK_SUCCESS) {
panic_msg("unable to bind buffer memory");
}
printf("\t. allocated\n");
out->buf = buf;
out->mem = mem;
out->size = size;
out->alloc_info = req;
}
#define AK_BUF_MK_AND_MAP(DEV, MEM, HANDLE, SZ, USAGE, OUT, SRC) \
{ \
AK_BUF_HEAD(HANDLE, SZ); \
ak_buf_mk_and_map(DEV, MEM, SZ, AK_BUF_USAGE(USAGE), OUT, SRC); \
}
static void ak_buf_mk_and_map(
VkDevice dev,
VkPhysicalDeviceMemoryProperties props_mem,
VkDeviceSize size,
VkBufferUsageFlags usage,
struct ak_buf *out,
void **src
) {
ak_buf_mk(
dev,
props_mem,
size,
usage,
// TODO: support uncached and/or non host-coherent heaps
AK_MEM_PROP(HOST_VISIBLE) | AK_MEM_PROP(HOST_COHERENT),
out
);
VkResult err;
err = vkMapMemory(dev, out->mem, 0, VK_WHOLE_SIZE, 0, src);
if (err != VK_SUCCESS) {
panic_msg("unable to map device memory to host");
}
printf("\t. backed\n");
}
static void ak_buf_free(VkDevice dev, struct ak_buf ak)
{
vkDestroyBuffer(dev, ak.buf, NULL);
vkUnmapMemory(dev, ak.mem); // TODO: check if mapped
vkFreeMemory(dev, ak.mem, NULL);
}
#define AK_MK_SET_LAYOUT(DEV, HANDLE, BINDINGS, COUNT, OUT) \
{ \
printf( \
"Making " HANDLE " descriptor set " \
"with %u binding(s)\n", \
COUNT \
); \
ak_mk_set_layout(DEV, BINDINGS, COUNT, OUT); \
}
static void ak_mk_set_layout(
VkDevice dev,
VkDescriptorSetLayoutBinding *bindings,
size_t count,
VkDescriptorSetLayout *out
) {
VkResult err;
VkDescriptorSetLayoutCreateInfo desc_create_info = {
STYPE(DESCRIPTOR_SET_LAYOUT_CREATE_INFO)
.flags = 0,
.bindingCount = count,
.pBindings = bindings,
.pNext = NULL,
};
VkDescriptorSetLayout desc_layout;
err = vkCreateDescriptorSetLayout(
dev,
&desc_create_info,
NULL,
&desc_layout
);
if (err != VK_SUCCESS) {
panic_msg("unable to create descriptor set layout");
}
printf("\t. done\n");
*out = desc_layout;
}
// Note: memory owned by caller
static u32 *ak_read_shader(const char *filename, size_t *out_size)
{
char *buf;
long size;
errno = 0;
FILE *file = fopen(filename, "rb");
if (errno) {
fprintf(stderr, "Error opening file at path \"%s\"\n", filename);
panic();
}
if (fseek(file, 0, SEEK_END)) {
perror("Error seeking file");
exit(EXIT_FAILURE);
}
errno = 0;
size = ftell(file);
if (errno) {
perror("Error acquiring length of file");
exit(EXIT_FAILURE);
}
if (fseek(file, 0, SEEK_SET)) {
perror("Error seeking file");
exit(EXIT_FAILURE);
}
buf = malloc(size);
assert(buf);
clearerr(file);
assert(size == fread(buf, 1, size, file));
if (ferror(file)) {
fprintf(
stderr,
"Error reading file \"%s\"\n",
filename
);
exit(EXIT_FAILURE);
}
fclose(file);
u32 *out = (u32*)buf;
assert(out[0] == 0x07230203);
assert(!(size % 4));
printf("Read %lu words from \"%s\"\n", size / 4, filename);
*out_size = size;
return out;
}
struct ak_shader {
VkShaderModule mod;
u32 *words;
size_t size;
size_t len;
};
static struct ak_shader ak_shader_mk(VkDevice dev, const char *filename)
{
VkResult err;
size_t size;
u32 *spv = ak_read_shader(filename, &size);
VkShaderModuleCreateInfo mod_create_info = {
STYPE(SHADER_MODULE_CREATE_INFO)
.flags = 0,
.codeSize = size,
.pCode = spv,
.pNext = NULL,
};
VkShaderModule mod;
err = vkCreateShaderModule(dev, &mod_create_info, NULL, &mod);
if (err != VK_SUCCESS) {
panic_msg("unable to create shader module\n");
}
return (struct ak_shader) {
mod,
.words = spv,
size,
.len = size / 4,
};
}
static void ak_shader_free(VkDevice dev, struct ak_shader shader)
{
vkDestroyShaderModule(dev, shader.mod, NULL);
free(shader.words);
}
#endif