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[vulkan] Implement font rendering

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It is currently an ugly hack for dealing with the separate quad queue,
and the pipeline handling code needs a lot of cleanup, but it works
quite well, though I do plan on moving to HarfBuzz for text shaping. One
nice development is I got updating of descriptor sets working (just need
to ensure the set is no longer in use by the command queue, which the
multiple frames in flight makes easy).
This commit is contained in:
Bill Currie 2022-09-02 14:23:19 +09:00
parent 73635d84bf
commit cd66dbfc97
5 changed files with 167 additions and 15 deletions
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5
libs/video/renderer/Makemodule.am
View file

@ -270,6 +270,8 @@ sprite_depthv_src = $(vkshaderpath)/sprite_depth.vert
sprite_depthv_c = $(vkshaderpath)/sprite_depth.vert.spvc
sprite_depthf_src = $(vkshaderpath)/sprite_depth.frag
sprite_depthf_c = $(vkshaderpath)/sprite_depth.frag.spvc
twod_impalpha_src = $(vkshaderpath)/twod_impalpha.frag
twod_impalpha_c = $(vkshaderpath)/twod_impalpha.frag.spvc
twodv_src = $(vkshaderpath)/twod.vert
twodv_c = $(vkshaderpath)/twod.vert.spvc
twodf_src = $(vkshaderpath)/twod.frag
@ -334,6 +336,8 @@ $(sprite_depthv_c): $(sprite_depthv_src)
$(sprite_depthf_c): $(sprite_depthf_src)
$(twod_impalpha_c): $(twod_impalpha_src)
$(twodv_c): $(twodv_src)
$(twodf_c): $(twodf_src)
@ -392,6 +396,7 @@ vkshader_c = \
$(sprite_gbuff_c) \
$(sprite_depthv_c) \
$(sprite_depthf_c) \
$(twod_impalpha_c) \
$(twodv_c) \
$(twodf_c) \
$(quakebspv_c) \

17
libs/video/renderer/vulkan/qfpipeline.plist
View file

@ -89,7 +89,7 @@
};
twod_pool = {
flags = 0;
maxSets = $frames.size;
maxSets = "$frames.size * 2z";
bindings = (
{
type = combined_image_sampler;
@ -1049,6 +1049,21 @@
};
layout = twod_layout;
};
twod_impalpha = {
@inherit = $properties.pipelines.twod;
stages = (
{
stage = vertex;
name = main;
module = $builtin/twod.vert;
},
{
stage = fragment;
name = main;
module = $builtin/twod_impalpha.frag;
},
);
};
lines = {
@inherit = $properties.pipelines.twod;
inputAssembly = $properties.inputAssembly.lines;

3
libs/video/renderer/vulkan/shader.c
View file

@ -57,6 +57,8 @@ static
static
#include "libs/video/renderer/vulkan/shader/sprite_depth.frag.spvc"
static
#include "libs/video/renderer/vulkan/shader/twod_impalpha.frag.spvc"
static
#include "libs/video/renderer/vulkan/shader/twod.vert.spvc"
static
#include "libs/video/renderer/vulkan/shader/twod.frag.spvc"
@ -121,6 +123,7 @@ static shaderdata_t builtin_shaders[] = {
{ "sprite_gbuf.frag", sprite_gbuf_frag, sizeof (sprite_gbuf_frag) },
{ "sprite_depth.vert", sprite_depth_vert, sizeof (sprite_depth_vert) },
{ "sprite_depth.frag", sprite_depth_frag, sizeof (sprite_depth_frag) },
{ "twod_impalpha.frag", twod_impalpha_frag, sizeof (twod_impalpha_frag) },
{ "twod.vert", twod_vert, sizeof (twod_vert) },
{ "twod.frag", twod_frag, sizeof (twod_frag) },
{ "quakebsp.vert", quakebsp_vert, sizeof (quakebsp_vert) },

17
libs/video/renderer/vulkan/shader/twod_impalpha.frag Normal file
View file

@ -0,0 +1,17 @@
#version 450
layout (set = 1, binding = 0) uniform sampler2D Texture;
layout (location = 0) in vec2 st;
layout (location = 1) in vec4 color;
layout (location = 0) out vec4 frag_color;
void
main (void)
{
vec4 pix;
pix = texture(Texture, st).rrrr;
frag_color = pix * color;
}

140
libs/video/renderer/vulkan/vulkan_draw.c
View file

@ -84,13 +84,17 @@ typedef struct cachepic_s {
typedef struct drawframe_s {
size_t vert_offset;
size_t iavert_offset;
size_t line_offset;
drawvert_t *quad_verts;
drawvert_t *iaquad_verts;
drawvert_t *line_verts;
uint32_t num_quads;
uint32_t num_iaquads;
uint32_t num_lines;
VkCommandBuffer cmd;
VkDescriptorSet descriptors;
VkDescriptorSet iadescriptors;
} drawframe_t;
typedef struct drawframeset_s
@ -117,6 +121,7 @@ typedef struct drawctx_s {
VkBuffer ind_buffer;
VkDeviceMemory ind_memory;
VkPipeline quad_pipeline;
VkPipeline iaquad_pipeline;
VkPipeline line_pipeline;
VkPipelineLayout layout;
drawframeset_t frames;
@ -130,7 +135,11 @@ typedef struct drawctx_s {
#define MAX_LINES (32768)
#define VERTS_PER_LINE (2)
#define VERTS_PER_FRAME (MAX_LINES*VERTS_PER_LINE + MAX_QUADS*VERTS_PER_QUAD)
#define QUADS_OFFSET 0
#define IAQUADS_OFFSET (MAX_QUADS * VERTS_PER_QUAD)
#define LINES_OFFSET (IAQUADS_OFFSET + (MAX_QUADS * VERTS_PER_QUAD))
#define VERTS_PER_FRAME (LINES_OFFSET + MAX_LINES*VERTS_PER_LINE)
static void
create_quad_buffers (vulkan_ctx_t *ctx)
@ -175,11 +184,14 @@ create_quad_buffers (vulkan_ctx_t *ctx)
for (size_t f = 0; f < frames; f++) {
drawframe_t *frame = &dctx->frames.a[f];
size_t ind = f * VERTS_PER_FRAME;
size_t lind = ind + MAX_QUADS * VERTS_PER_QUAD;
size_t iaind = ind + IAQUADS_OFFSET;
size_t lind = ind + LINES_OFFSET;
frame->vert_offset = ind * sizeof (drawvert_t);
frame->iavert_offset = iaind;
frame->line_offset = lind;
frame->quad_verts = vert_data + ind;
frame->line_verts = frame->quad_verts + MAX_QUADS * VERTS_PER_QUAD;
frame->iaquad_verts = frame->quad_verts + IAQUADS_OFFSET;
frame->line_verts = frame->quad_verts + LINES_OFFSET;
frame->num_quads = 0;
frame->num_lines = 0;
}
@ -367,6 +379,7 @@ Vulkan_Draw_Shutdown (vulkan_ctx_t *ctx)
destroy_quad_buffers (ctx);
dfunc->vkDestroyPipeline (device->dev, dctx->quad_pipeline, 0);
dfunc->vkDestroyPipeline (device->dev, dctx->iaquad_pipeline, 0);
dfunc->vkDestroyPipeline (device->dev, dctx->line_pipeline, 0);
Hash_DelTable (dctx->pic_cache);
delete_memsuper (dctx->pic_memsuper);
@ -433,6 +446,8 @@ Vulkan_Draw_Init (vulkan_ctx_t *ctx)
flush_draw_scrap (ctx);
dctx->quad_pipeline = Vulkan_CreateGraphicsPipeline (ctx, "twod");
dctx->iaquad_pipeline = Vulkan_CreateGraphicsPipeline (ctx,
"twod_impalpha");
dctx->line_pipeline = Vulkan_CreateGraphicsPipeline (ctx, "lines");
dctx->layout = Vulkan_CreatePipelineLayout (ctx, "twod_layout");
@ -448,21 +463,32 @@ Vulkan_Draw_Init (vulkan_ctx_t *ctx)
QFV_ScrapImageView (dctx->scrap),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
};
VkDescriptorImageInfo iaimageInfo = {
dctx->sampler,
Vulkan_TexImageView (ctx->default_magenta),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
};
__auto_type cmdBuffers = QFV_AllocCommandBufferSet (frames, alloca);
QFV_AllocateCommandBuffers (device, ctx->cmdpool, 1, cmdBuffers);
__auto_type sets = QFV_AllocateDescriptorSet (device, pool, layouts);
__auto_type iasets = QFV_AllocateDescriptorSet (device, pool, layouts);
for (size_t i = 0; i < frames; i++) {
__auto_type dframe = &dctx->frames.a[i];
dframe->descriptors = sets->a[i];
dframe->iadescriptors = iasets->a[i];
VkWriteDescriptorSet write[] = {
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0,
dframe->descriptors, 0, 0, 1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&imageInfo, 0, 0 },
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0,
dframe->iadescriptors, 0, 0, 1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&iaimageInfo, 0, 0 },
};
dfunc->vkUpdateDescriptorSets (device->dev, 1, write, 0, 0);
dfunc->vkUpdateDescriptorSets (device->dev, 2, write, 0, 0);
dframe->cmd = cmdBuffers->a[i];
QFV_duSetObjectName (device, VK_OBJECT_TYPE_COMMAND_BUFFER,
dframe->cmd,
@ -868,7 +894,7 @@ Vulkan_FlushText (qfv_renderframe_t *rFrame)
drawctx_t *dctx = ctx->draw_context;
drawframe_t *dframe = &dctx->frames.a[ctx->curFrame];
if (!dframe->num_quads && !dframe->num_lines) {
if (!dframe->num_quads && !dframe->num_iaquads && !dframe->num_lines) {
return;
}
@ -880,6 +906,9 @@ Vulkan_FlushText (qfv_renderframe_t *rFrame)
{ VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE, 0,
dctx->vert_memory, dframe->vert_offset,
dframe->num_quads * VERTS_PER_QUAD * sizeof (drawvert_t) },
{ VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE, 0,
dctx->vert_memory, dframe->iavert_offset,
dframe->num_iaquads * VERTS_PER_QUAD * sizeof (drawvert_t) },
{ VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE, 0,
dctx->vert_memory, dframe->line_offset,
dframe->num_lines * VERTS_PER_LINE * sizeof (drawvert_t) },
@ -906,33 +935,72 @@ Vulkan_FlushText (qfv_renderframe_t *rFrame)
dfunc->vkCmdBindVertexBuffers (cmd, 0, 1, &dctx->vert_buffer, offsets);
dfunc->vkCmdBindIndexBuffer (cmd, dctx->ind_buffer, 0,
VK_INDEX_TYPE_UINT32);
VkDescriptorSet set[2] = {
Vulkan_Matrix_Descriptors (ctx, ctx->curFrame),
dframe->descriptors,
};
VkPipelineLayout layout = dctx->layout;
dfunc->vkCmdBindDescriptorSets (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
layout, 0, 2, set, 0, 0);
if (dframe->num_quads) {
VkDescriptorSet set[2] = {
Vulkan_Matrix_Descriptors (ctx, ctx->curFrame),
dframe->descriptors,
};
VkPipelineLayout layout = dctx->layout;
dfunc->vkCmdBindDescriptorSets (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
layout, 0, 2, set, 0, 0);
dfunc->vkCmdBindPipeline (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
dctx->quad_pipeline);
dfunc->vkCmdSetViewport (cmd, 0, 1, &rFrame->renderpass->viewport);
dfunc->vkCmdSetScissor (cmd, 0, 1, &rFrame->renderpass->scissor);
dfunc->vkCmdDrawIndexed (cmd, dframe->num_quads * INDS_PER_QUAD,
1, 0, 0, 0);
1, 0, QUADS_OFFSET, 0);
}
if (dframe->num_iaquads) {
VkDescriptorImageInfo iaimageInfo = {
dctx->sampler,
Vulkan_TexImageView (dctx->font_tex),
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
};
VkWriteDescriptorSet write[] = {
{ VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, 0,
dframe->iadescriptors, 0, 0, 1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&iaimageInfo, 0, 0 },
};
dfunc->vkUpdateDescriptorSets (device->dev, 1, write, 0, 0);
VkDescriptorSet set[2] = {
Vulkan_Matrix_Descriptors (ctx, ctx->curFrame),
dframe->iadescriptors,
};
VkPipelineLayout layout = dctx->layout;
dfunc->vkCmdBindDescriptorSets (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
layout, 0, 2, set, 0, 0);
dfunc->vkCmdBindPipeline (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
dctx->iaquad_pipeline);
dfunc->vkCmdSetViewport (cmd, 0, 1, &rFrame->renderpass->viewport);
dfunc->vkCmdSetScissor (cmd, 0, 1, &rFrame->renderpass->scissor);
dfunc->vkCmdDrawIndexed (cmd, dframe->num_iaquads * INDS_PER_QUAD,
1, 0, IAQUADS_OFFSET, 0);
}
if (dframe->num_lines) {
VkDescriptorSet set[2] = {
Vulkan_Matrix_Descriptors (ctx, ctx->curFrame),
dframe->descriptors,
};
VkPipelineLayout layout = dctx->layout;
dfunc->vkCmdBindDescriptorSets (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
layout, 0, 2, set, 0, 0);
dfunc->vkCmdBindPipeline (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
dctx->line_pipeline);
dfunc->vkCmdDraw (cmd, dframe->num_lines * VERTS_PER_LINE,
1, MAX_QUADS * VERTS_PER_QUAD, 0);
1, LINES_OFFSET, 0);
}
QFV_duCmdEndLabel (device, cmd);
dfunc->vkEndCommandBuffer (cmd);
dframe->num_quads = 0;
dframe->num_iaquads = 0;
dframe->num_lines = 0;
}
@ -976,4 +1044,48 @@ Vulkan_Draw_AddFont (rfont_t *font, vulkan_ctx_t *ctx)
void
Vulkan_Draw_FontString (int x, int y, const char *str, vulkan_ctx_t *ctx)
{
drawctx_t *dctx = ctx->draw_context;
if (!dctx->font) {
return;
}
//FIXME ewwwwwww
drawframe_t *dframe = &dctx->frames.a[ctx->curFrame];
uint32_t num_quads = dframe->num_quads;
drawvert_t *quad_verts = dframe->quad_verts;
dframe->num_quads = dframe->num_iaquads;
dframe->quad_verts = dframe->iaquad_verts;
subpic_t glyph_subpic = {
.width = dctx->font->scrap.width,
.height = dctx->font->scrap.height,
.size = 1.0 / dctx->font->scrap.width,
};
struct {
qpic_t pic;
subpic_t *subpic;
} glyph_pic = {
.pic = {
.width = 1,
.height = 1,
},
.subpic = &glyph_subpic,
};
quat_t color = { 0.5, 1, 0.6, 1 };
for (const char *c = str; *c; c++) {
rglyph_t search = { .charcode = *c };
rglyph_t *glyph = Hash_FindElement (dctx->font->glyphmap, &search);
if (!glyph) {
continue;
}
*((vrect_t **) &glyph_subpic.rect) = glyph->rect;
int gw = glyph->rect->width;
int gh = glyph->rect->height;
vec2i_t pos = (vec2i_t) { x, y } + glyph->bearing * (vec2i_t) { 1, -1 };
draw_pic (pos[0], pos[1], gw, gh, &glyph_pic.pic,
0, 0, gw, gh, color, dframe);
x += glyph->advance / 64;
}
dframe->num_iaquads = dframe->num_quads;
dframe->iaquad_verts = dframe->quad_verts;
dframe->num_quads = num_quads;
dframe->quad_verts = quad_verts;
}