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xash3d-fwgs
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xash3d-fwgs/ref_vk/vk_render.c

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#include "vk_render.h"
#include "vk_core.h"
#include "vk_buffer.h"
#include "vk_const.h"
#include "vk_common.h"
#include "vk_pipeline.h"
#include "vk_textures.h"
#include "vk_math.h"
#include "eiface.h"
#include "xash3d_mathlib.h"
#include <memory.h>
#define MAX_UNIFORM_SLOTS (MAX_SCENE_ENTITIES * 2 /* solid + trans */ + 1)
typedef struct {
matrix4x4 mvp;
vec4_t color;
} uniform_data_t;
typedef struct vk_buffer_alloc_s {
// TODO uint32_t sequence
uint32_t unit_size; // if 0 then this alloc slot is free
uint32_t buffer_offset_in_units;
uint32_t count;
qboolean locked;
vk_lifetime_t lifetime;
} vk_buffer_alloc_t;
// TODO estimate
#define MAX_ALLOCS 1024
static struct {
VkPipelineLayout pipeline_layout;
VkPipeline pipelines[kRenderTransAdd + 1];
vk_buffer_t buffer;
uint32_t buffer_free_offset;
uint32_t buffer_frame_begin_offset;
vk_buffer_t uniform_buffer;
uint32_t uniform_unit_size;
struct {
int align_holes_size;
} stat;
vk_buffer_alloc_t allocs[MAX_ALLOCS];
int allocs_free[MAX_ALLOCS];
int num_free_allocs;
} g_render;
static qboolean createPipelines( void )
{
/* VkPushConstantRange push_const = { */
/* .offset = 0, */
/* .size = sizeof(AVec3f), */
/* .stageFlags = VK_SHADER_STAGE_VERTEX_BIT, */
/* }; */
VkDescriptorSetLayout descriptor_layouts[] = {
vk_core.descriptor_pool.one_uniform_buffer_layout,
vk_core.descriptor_pool.one_texture_layout,
vk_core.descriptor_pool.one_texture_layout,
};
VkPipelineLayoutCreateInfo plci = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
.setLayoutCount = ARRAYSIZE(descriptor_layouts),
.pSetLayouts = descriptor_layouts,
/* .pushConstantRangeCount = 1, */
/* .pPushConstantRanges = &push_const, */
};
// FIXME store layout separately
XVK_CHECK(vkCreatePipelineLayout(vk_core.device, &plci, NULL, &g_render.pipeline_layout));
{
struct ShaderSpec {
float alpha_test_threshold;
} spec_data = { .25f };
const VkSpecializationMapEntry spec_map[] = {
{.constantID = 0, .offset = offsetof(struct ShaderSpec, alpha_test_threshold), .size = sizeof(float) },
};
VkSpecializationInfo alpha_test_spec = {
.mapEntryCount = ARRAYSIZE(spec_map),
.pMapEntries = spec_map,
.dataSize = sizeof(struct ShaderSpec),
.pData = &spec_data
};
VkVertexInputAttributeDescription attribs[] = {
{.binding = 0, .location = 0, .format = VK_FORMAT_R32G32B32_SFLOAT, .offset = offsetof(vk_vertex_t, pos)},
{.binding = 0, .location = 1, .format = VK_FORMAT_R32G32_SFLOAT, .offset = offsetof(vk_vertex_t, gl_tc)},
{.binding = 0, .location = 2, .format = VK_FORMAT_R32G32_SFLOAT, .offset = offsetof(vk_vertex_t, lm_tc)},
};
VkPipelineShaderStageCreateInfo shader_stages[] = {
{
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
.stage = VK_SHADER_STAGE_VERTEX_BIT,
.module = loadShader("brush.vert.spv"),
.pName = "main",
}, {
.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
.stage = VK_SHADER_STAGE_FRAGMENT_BIT,
.module = loadShader("brush.frag.spv"),
.pName = "main",
}};
vk_pipeline_create_info_t ci = {
.layout = g_render.pipeline_layout,
.attribs = attribs,
.num_attribs = ARRAYSIZE(attribs),
.stages = shader_stages,
.num_stages = ARRAYSIZE(shader_stages),
.vertex_stride = sizeof(vk_vertex_t),
.depthTestEnable = VK_TRUE,
.depthWriteEnable = VK_TRUE,
.depthCompareOp = VK_COMPARE_OP_LESS,
.blendEnable = VK_FALSE,
.cullMode = VK_CULL_MODE_FRONT_BIT,
};
for (int i = 0; i < ARRAYSIZE(g_render.pipelines); ++i)
{
const char *name = "UNDEFINED";
switch (i)
{
case kRenderNormal:
ci.stages[1].pSpecializationInfo = NULL;
ci.blendEnable = VK_FALSE;
ci.depthWriteEnable = VK_TRUE;
ci.depthTestEnable = VK_TRUE;
name = "brush kRenderNormal";
break;
case kRenderTransColor:
ci.stages[1].pSpecializationInfo = NULL;
ci.depthWriteEnable = VK_TRUE;
ci.depthTestEnable = VK_TRUE;
ci.blendEnable = VK_TRUE;
ci.colorBlendOp = VK_BLEND_OP_ADD; // TODO check
ci.srcAlphaBlendFactor = ci.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
ci.dstAlphaBlendFactor = ci.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
name = "brush kRenderTransColor";
break;
case kRenderTransAdd:
ci.stages[1].pSpecializationInfo = NULL;
ci.depthWriteEnable = VK_FALSE;
ci.depthTestEnable = VK_TRUE;
ci.blendEnable = VK_TRUE;
ci.colorBlendOp = VK_BLEND_OP_ADD; // TODO check
// sprites do SRC_ALPHA
ci.srcAlphaBlendFactor = ci.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;// TODO ? FACTOR_ONE;
ci.dstAlphaBlendFactor = ci.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
name = "brush kRenderTransAdd";
break;
case kRenderTransAlpha:
ci.stages[1].pSpecializationInfo = &alpha_test_spec;
ci.depthWriteEnable = VK_TRUE;
ci.depthTestEnable = VK_TRUE;
ci.blendEnable = VK_FALSE;
name = "brush kRenderTransAlpha(test)";
break;
case kRenderGlow:
ci.stages[1].pSpecializationInfo = NULL;
ci.depthWriteEnable = VK_FALSE;
ci.depthTestEnable = VK_FALSE;
ci.blendEnable = VK_TRUE;
ci.colorBlendOp = VK_BLEND_OP_ADD; // TODO check
ci.srcAlphaBlendFactor = ci.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
ci.dstAlphaBlendFactor = ci.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
break;
case kRenderTransTexture:
ci.stages[1].pSpecializationInfo = NULL;
ci.depthWriteEnable = VK_FALSE;
ci.depthTestEnable = VK_TRUE;
ci.blendEnable = VK_TRUE;
ci.colorBlendOp = VK_BLEND_OP_ADD; // TODO check
ci.srcAlphaBlendFactor = ci.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
ci.dstAlphaBlendFactor = ci.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
name = "brush kRenderTransTexture/Glow";
break;
default:
ASSERT(!"Unreachable");
}
g_render.pipelines[i] = createPipeline(&ci);
if (!g_render.pipelines[i])
{
// TODO complain
return false;
}
if (vk_core.debug)
{
VkDebugUtilsObjectNameInfoEXT debug_name = {
.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_OBJECT_NAME_INFO_EXT,
.objectHandle = (uint64_t)g_render.pipelines[i],
.objectType = VK_OBJECT_TYPE_PIPELINE,
.pObjectName = name,
};
XVK_CHECK(vkSetDebugUtilsObjectNameEXT(vk_core.device, &debug_name));
}
}
for (int i = 0; i < (int)ARRAYSIZE(shader_stages); ++i)
vkDestroyShaderModule(vk_core.device, shader_stages[i].module, NULL);
}
return true;
}
static void resetAllocFreeList( void ) {
g_render.num_free_allocs = MAX_ALLOCS;
for (int i = 0; i < MAX_ALLOCS; ++i) {
g_render.allocs_free[i] = MAX_ALLOCS - i - 1;
g_render.allocs[i].unit_size = 0;
}
}
qboolean VK_RenderInit( void )
{
// TODO Better estimates
const uint32_t vertex_buffer_size = MAX_BUFFER_VERTICES * sizeof(float) * (3 + 3 + 2 + 2);
const uint32_t index_buffer_size = MAX_BUFFER_INDICES * sizeof(uint16_t);
const uint32_t ubo_align = Q_max(4, vk_core.physical_device.properties.limits.minUniformBufferOffsetAlignment);
g_render.uniform_unit_size = ((sizeof(uniform_data_t) + ubo_align - 1) / ubo_align) * ubo_align;
// TODO device memory and friends (e.g. handle mobile memory ...)
if (!createBuffer(&g_render.buffer, vertex_buffer_size + index_buffer_size, VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT))
return false;
if (!createBuffer(&g_render.uniform_buffer, g_render.uniform_unit_size * MAX_UNIFORM_SLOTS, VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT))
return false;
{
VkDescriptorBufferInfo dbi = {
.buffer = g_render.uniform_buffer.buffer,
.offset = 0,
.range = sizeof(uniform_data_t),
};
VkWriteDescriptorSet wds[] = { {
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.dstBinding = 0,
.dstArrayElement = 0,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC,
.pBufferInfo = &dbi,
.dstSet = vk_core.descriptor_pool.ubo_sets[0], // FIXME
}};
vkUpdateDescriptorSets(vk_core.device, ARRAYSIZE(wds), wds, 0, NULL);
}
if (!createPipelines())
return false;
resetAllocFreeList();
return true;
}
void VK_RenderShutdown( void )
{
for (int i = 0; i < ARRAYSIZE(g_render.pipelines); ++i)
vkDestroyPipeline(vk_core.device, g_render.pipelines[i], NULL);
vkDestroyPipelineLayout( vk_core.device, g_render.pipeline_layout, NULL );
destroyBuffer( &g_render.buffer );
destroyBuffer( &g_render.uniform_buffer );
}
vk_buffer_handle_t VK_RenderBufferAlloc( uint32_t unit_size, uint32_t count, vk_lifetime_t lifetime )
{
const uint32_t offset = ALIGN_UP(g_render.buffer_free_offset, unit_size);
const uint32_t alloc_size = unit_size * count;
vk_buffer_alloc_t *alloc;
vk_buffer_handle_t handle = InvalidHandle;
// FIXME long lifetimes are not supported yet
ASSERT(lifetime != LifetimeLong);
ASSERT(unit_size > 0);
if (offset + alloc_size > g_render.buffer.size) {
gEngine.Con_Printf(S_ERROR "Cannot allocate %u bytes aligned at %u from buffer; only %u are left",
alloc_size, unit_size, g_render.buffer.size - offset);
return InvalidHandle;
}
if (!g_render.num_free_allocs) {
gEngine.Con_Printf(S_ERROR "Cannot allocate buffer, allocs count exhausted\n" );
return InvalidHandle;
}
// TODO bake sequence number into handle (to detect buffer lifetime misuse)
handle = g_render.allocs_free[--g_render.num_free_allocs];
alloc = g_render.allocs + handle;
ASSERT(alloc->unit_size == 0);
alloc->buffer_offset_in_units = offset / unit_size;
alloc->unit_size = unit_size;
alloc->lifetime = lifetime;
alloc->count = count;
g_render.stat.align_holes_size += offset - g_render.buffer_free_offset;
g_render.buffer_free_offset = offset + alloc_size;
if (lifetime < LifetimeSingleFrame)
g_render.buffer_frame_begin_offset = g_render.buffer_free_offset;
return handle;
}
static vk_buffer_alloc_t *getBufferFromHandle( vk_buffer_handle_t handle )
{
vk_buffer_alloc_t *alloc;
ASSERT(handle >= 0);
ASSERT(handle < MAX_ALLOCS);
// TODO check sequence number
alloc = g_render.allocs + handle;
ASSERT(alloc->unit_size != 0);
return alloc;
}
vk_buffer_lock_t VK_RenderBufferLock( vk_buffer_handle_t handle )
{
vk_buffer_lock_t ret = {0};
vk_buffer_alloc_t *alloc = getBufferFromHandle( handle );
ASSERT(!alloc->locked);
alloc->locked = true;
ret.unit_size = alloc->unit_size;
ret.count = alloc->count;
ret.ptr = ((byte*)g_render.buffer.mapped) + alloc->unit_size * alloc->buffer_offset_in_units;
return ret;
}
void VK_RenderBufferUnlock( vk_buffer_handle_t handle )
{
vk_buffer_alloc_t *alloc = getBufferFromHandle( handle );
ASSERT(alloc->locked);
alloc->locked = false;
// TODO upload from staging to gpumem
}
// Free all LifetimeSingleFrame resources
void VK_RenderBufferClearFrame( void )
{
g_render.buffer_free_offset = g_render.buffer_frame_begin_offset;
for (int i = 0; i < MAX_ALLOCS; ++i) {
vk_buffer_alloc_t *alloc = g_render.allocs + i;
if (!alloc->unit_size)
continue;
if (alloc->lifetime != LifetimeSingleFrame)
continue;
alloc->unit_size = 0;
g_render.allocs_free[g_render.num_free_allocs++] = i;
ASSERT(g_render.num_free_allocs <= MAX_ALLOCS);
}
}
// Free all LifetimeMap resources
void VK_RenderBufferClearMap( void )
{
g_render.buffer_free_offset = g_render.buffer_frame_begin_offset = 0;
g_render.stat.align_holes_size = 0;
resetAllocFreeList();
}
void VK_RenderBufferPrintStats( void )
{
gEngine.Con_Reportf("Buffer usage: %uKiB of (%uKiB); holes: %u bytes\n",
g_render.buffer_free_offset / 1024,
g_render.buffer.size / 1024,
g_render.stat.align_holes_size);
}
#define MAX_DRAW_COMMANDS 8192 // TODO estimate
#define MAX_DEBUG_NAME_LENGTH 32
typedef struct {
render_draw_t draw;
uint32_t ubo_offset;
//char debug_name[MAX_DEBUG_NAME_LENGTH];
} draw_command_t;
static struct {
int uniform_data_set_mask;
int next_free_uniform_slot;
uniform_data_t current_uniform_data;
uniform_data_t dirty_uniform_data;
draw_command_t draw_commands[MAX_DRAW_COMMANDS];
int num_draw_commands;
} g_render_state;
enum {
UNIFORM_UNSET = 0,
UNIFORM_SET_COLOR = 1,
UNIFORM_SET_MATRIX = 2,
UNIFORM_SET_ALL = UNIFORM_SET_COLOR | UNIFORM_SET_MATRIX,
UNIFORM_UPLOADED = 4,
};
void VK_RenderBegin( void ) {
g_render_state.next_free_uniform_slot = 0;
g_render_state.uniform_data_set_mask = UNIFORM_UNSET;
memset(&g_render_state.current_uniform_data, 0, sizeof(g_render_state.current_uniform_data));
memset(&g_render_state.dirty_uniform_data, 0, sizeof(g_render_state.dirty_uniform_data));
g_render_state.num_draw_commands = 0;
}
void VK_RenderStateSetColor( float r, float g, float b, float a )
{
g_render_state.uniform_data_set_mask |= UNIFORM_SET_COLOR;
g_render_state.dirty_uniform_data.color[0] = r;
g_render_state.dirty_uniform_data.color[1] = g;
g_render_state.dirty_uniform_data.color[2] = b;
g_render_state.dirty_uniform_data.color[3] = a;
}
void VK_RenderStateSetMatrix( const matrix4x4 mvp )
{
g_render_state.uniform_data_set_mask |= UNIFORM_SET_MATRIX;
Matrix4x4_ToArrayFloatGL( mvp, (float*)g_render_state.dirty_uniform_data.mvp );
}
static uniform_data_t *getUniformSlot(int index)
{
ASSERT(index >= 0);
ASSERT(index < MAX_UNIFORM_SLOTS);
return (uniform_data_t*)(((uint8_t*)g_render.uniform_buffer.mapped) + (g_render.uniform_unit_size * index));
}
static int allocUniformSlot( void ) {
if (g_render_state.next_free_uniform_slot == MAX_UNIFORM_SLOTS)
return -1;
return g_render_state.next_free_uniform_slot++;
}
void VK_RenderScheduleDraw( const render_draw_t *draw )
{
int ubo_index = g_render_state.next_free_uniform_slot - 1;
draw_command_t *draw_command;
ASSERT(draw->render_mode >= 0);
ASSERT(draw->render_mode < ARRAYSIZE(g_render.pipelines));
ASSERT(draw->lightmap >= 0);
ASSERT(draw->texture >= 0);
{
const vk_buffer_alloc_t *vertex_buffer = getBufferFromHandle(draw->vertex_buffer);
ASSERT(vertex_buffer);
ASSERT(!vertex_buffer->locked);
}
// Index buffer is optional
if (draw->index_buffer != InvalidHandle)
{
const vk_buffer_alloc_t *index_buffer = getBufferFromHandle(draw->index_buffer);
ASSERT(index_buffer);
ASSERT(!index_buffer->locked);
}
if ((g_render_state.uniform_data_set_mask & UNIFORM_SET_ALL) != UNIFORM_SET_ALL) {
gEngine.Con_Printf( S_ERROR "Not all uniform state was initialized prior to rendering\n" );
return;
}
if (g_render_state.num_draw_commands >= ARRAYSIZE(g_render_state.draw_commands)) {
gEngine.Con_Printf( S_ERROR "Maximum number of draw commands reached\n" );
return;
}
// Figure out whether we need to update UBO data, and upload new data if we do
// TODO generally it's not safe to do memcmp for structures comparison
if (((g_render_state.uniform_data_set_mask & UNIFORM_UPLOADED) == 0) || memcmp(&g_render_state.current_uniform_data, &g_render_state.dirty_uniform_data, sizeof(g_render_state.current_uniform_data)) != 0) {
uniform_data_t *ubo;
ubo_index = allocUniformSlot();
if (ubo_index < 0) {
gEngine.Con_Printf( S_ERROR "Ran out of uniform slots\n" );
return;
}
ubo = getUniformSlot( ubo_index );
memcpy(&g_render_state.current_uniform_data, &g_render_state.dirty_uniform_data, sizeof(g_render_state.dirty_uniform_data));
memcpy(ubo, &g_render_state.current_uniform_data, sizeof(*ubo));
g_render_state.uniform_data_set_mask |= UNIFORM_UPLOADED;
}
draw_command = g_render_state.draw_commands + (g_render_state.num_draw_commands++);
draw_command->draw = *draw;
draw_command->ubo_offset = g_render.uniform_unit_size * ubo_index;
}
void VK_RenderEnd( VkCommandBuffer cmdbuf )
{
// TODO we can sort collected draw commands for more efficient and correct rendering
// that requires adding info about distance to camera for correct order-dependent blending
int pipeline = -1;
int texture = -1;
int lightmap = -1;
uint32_t ubo_offset = -1;
{
const VkDeviceSize offset = 0;
vkCmdBindVertexBuffers(cmdbuf, 0, 1, &g_render.buffer.buffer, &offset);
vkCmdBindIndexBuffer(cmdbuf, g_render.buffer.buffer, 0, VK_INDEX_TYPE_UINT16);
}
for (int i = 0; i < g_render_state.num_draw_commands; ++i) {
const draw_command_t *const draw = g_render_state.draw_commands + i;
const vk_buffer_alloc_t *vertex_buffer = getBufferFromHandle( draw->draw.vertex_buffer );
const vk_buffer_alloc_t *index_buffer = draw->draw.index_buffer != InvalidHandle ? getBufferFromHandle( draw->draw.index_buffer ) : NULL;
const uint32_t vertex_offset = vertex_buffer->buffer_offset_in_units + draw->draw.vertex_offset;
if (ubo_offset != draw->ubo_offset)
{
ubo_offset = draw->ubo_offset;
vkCmdBindDescriptorSets(vk_core.cb, VK_PIPELINE_BIND_POINT_GRAPHICS, g_render.pipeline_layout, 0, 1, vk_core.descriptor_pool.ubo_sets, 1., &ubo_offset);
}
if (pipeline != draw->draw.render_mode) {
pipeline = draw->draw.render_mode;
vkCmdBindPipeline(vk_core.cb, VK_PIPELINE_BIND_POINT_GRAPHICS, g_render.pipelines[pipeline]);
}
if (lightmap != draw->draw.lightmap) {
lightmap = draw->draw.lightmap;
vkCmdBindDescriptorSets(vk_core.cb, VK_PIPELINE_BIND_POINT_GRAPHICS, g_render.pipeline_layout, 2, 1, &findTexture(lightmap)->vk.descriptor, 0, NULL);
}
if (texture != draw->draw.texture)
{
texture = draw->draw.texture;
// TODO names/enums for binding points
vkCmdBindDescriptorSets(vk_core.cb, VK_PIPELINE_BIND_POINT_GRAPHICS, g_render.pipeline_layout, 1, 1, &findTexture(texture)->vk.descriptor, 0, NULL);
}
if (draw->draw.index_buffer) {
const uint32_t index_offset = index_buffer->buffer_offset_in_units + draw->draw.index_offset;
vkCmdDrawIndexed(vk_core.cb, draw->draw.element_count, 1, index_offset, vertex_offset, 0);
} else {
vkCmdDraw(vk_core.cb, draw->draw.element_count, 1, vertex_offset, 0);
}
}
}
void VK_RenderDebugLabelBegin( const char *name )
{
// TODO fix this
/* if (vk_core.debug) { */
/* VkDebugUtilsLabelEXT label = { */
/* .sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_LABEL_EXT, */
/* .pLabelName = name, */
/* }; */
/* vkCmdBeginDebugUtilsLabelEXT(vk_core.cb, &label); */
/* } */
}
void VK_RenderDebugLabelEnd( void )
{
/* if (vk_core.debug) */
/* vkCmdEndDebugUtilsLabelEXT(vk_core.cb); */
}
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