renderer-mvp/post-processing #56

Merged
kayomn merged 30 commits from renderer-mvp/post-processing into main 2024-07-22 02:05:25 +02:00
9 changed files with 1037 additions and 1039 deletions
Showing only changes of commit d27f7735cb - Show all commits

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@ -31,14 +31,14 @@ pub fn create_event(self: *Self, label: []const u8) std.mem.Allocator.Error!Even
}
pub fn deinit(self: *Self) void {
for (&self.thread_restricted_resources) |*resources| {
resources.deinit();
}
for (self.event_systems.values) |*schedule| {
schedule.deinit(self);
}
for (&self.thread_restricted_resources) |*resources| {
resources.deinit();
}
if (self.thread_pool) |thread_pool| {
thread_pool.deinit();
coral.heap.allocator.destroy(thread_pool);

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@ -255,7 +255,7 @@ fn parameter_type(comptime Value: type) *const system.Info.Parameter {
}
}
Value.unbind(node);
Value.unbind(&node.param, context);
allocator.destroy(node);
}
}

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@ -4,15 +4,13 @@ pub const colors = @import("./gfx/colors.zig");
const coral = @import("coral");
const bmp = @import("./gfx/bmp.zig");
const ext = @import("./ext.zig");
const flow = @import("flow");
const msg = @import("./msg.zig");
const sokol = @import("./gfx/sokol.zig");
const rendering = @import("./gfx/rendering.zig");
const std = @import("std");
@ -261,9 +259,9 @@ pub const Commands = struct {
};
}
pub fn init(state: *Param) Commands {
pub fn init(param: *Param) Commands {
return .{
.pending = state.pending_list(),
.pending = param.pending_list(),
};
}
@ -280,6 +278,10 @@ pub const Commands = struct {
});
}
pub fn unbind(param: *Param, _: flow.system.UnbindContext) void {
param.deinit();
}
pub fn set_target(self: Commands, command: SetTargetCommand) std.mem.Allocator.Error!void {
try self.pending.stack.push_grow(.{.set_target = command});
}
@ -361,6 +363,80 @@ pub const Transform2D = extern struct {
const Vector = @Vector(2, f32);
};
fn load_bmp_texture(arena: *std.heap.ArenaAllocator, storage: coral.files.Storage, path: []const u8) !Texture.Desc {
const header = try storage.read_little(path, 0, extern struct {
type: [2]u8 align (1),
file_size: u32 align (1),
reserved: [2]u16 align (1),
image_offset: u32 align (1),
header_size: u32 align (1),
pixel_width: i32 align (1),
pixel_height: i32 align (1),
color_planes: u16 align (1),
bits_per_pixel: u16 align (1),
compression_method: u32 align (1),
image_size: u32 align(1),
pixels_per_meter_x: i32 align (1),
pixels_per_meter_y: i32 align (1),
palette_colors_used: u32 align (1),
important_colors_used: u32 align (1),
}) orelse {
return error.FormatUnsupported;
};
if (!std.mem.eql(u8, &header.type, "BM")) {
return error.FormatUnsupported;
}
const pixel_width = std.math.cast(u16, header.pixel_width) orelse {
return error.FormatUnsupported;
};
const pixels = try arena.allocator().alloc(coral.io.Byte, header.image_size);
const bytes_per_pixel = header.bits_per_pixel / coral.io.bits_per_byte;
const alignment = 4;
const byte_stride = pixel_width * bytes_per_pixel;
const padded_byte_stride = alignment * @divTrunc((byte_stride + alignment - 1), alignment);
const byte_padding = coral.scalars.sub(padded_byte_stride, byte_stride) orelse 0;
var buffer_offset: usize = 0;
var file_offset = @as(usize, header.image_offset);
switch (header.bits_per_pixel) {
32 => {
while (buffer_offset < pixels.len) {
const line = pixels[buffer_offset .. buffer_offset + byte_stride];
if (try storage.read(path, line, file_offset) != byte_stride) {
return error.FormatUnsupported;
}
for (0 .. pixel_width) |i| {
const line_offset = i * 4;
const pixel = line[line_offset .. line_offset + 4];
std.mem.swap(u8, &pixel[0], &pixel[2]);
}
file_offset += line.len + byte_padding;
buffer_offset += padded_byte_stride;
}
},
else => return error.FormatUnsupported,
}
return .{
.format = .rgba8,
.access = .{
.static = .{
.width = pixel_width,
.data = pixels,
},
},
};
}
pub fn poll(app: flow.Write(App), inputs: msg.Send(Input)) !void {
var event = @as(ext.SDL_Event, undefined);
@ -395,12 +471,15 @@ pub fn setup(world: *flow.World, events: App.Events) (error {Unsupported} || std
assets.deinit();
}
assets.has_worker_thread = try std.Thread.spawn(.{}, sokol.run, .{&assets.pending_work, assets.window});
assets.has_worker_thread = try std.Thread.spawn(.{}, rendering.process_work, .{
&assets.pending_work,
assets.window,
});
const builtin_texture_formats = [_]Assets.TextureFormat{
.{
.extension = "bmp",
.load_file = bmp.load_file,
.load_file = load_bmp_texture,
},
};

518
src/ona/gfx/Resources.zig Normal file
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@ -0,0 +1,518 @@
const coral = @import("coral");
const gfx = @import("../gfx.zig");
const sokol = @import("sokol");
const spirv = @import("./spirv.zig");
const std = @import("std");
effects: EffectPool,
textures: TexturePool,
pub const Effect = struct {
shader: sokol.gfx.Shader,
pipeline: sokol.gfx.Pipeline,
properties: []coral.io.Byte,
pub fn deinit(self: *Effect) void {
coral.heap.allocator.free(self.properties);
sokol.gfx.destroyPipeline(self.pipeline);
sokol.gfx.destroyShader(self.shader);
self.* = undefined;
}
pub fn init(desc: gfx.Effect.Desc) spirv.Error!Effect {
var spirv_arena = std.heap.ArenaAllocator.init(coral.heap.allocator);
defer {
spirv_arena.deinit();
}
const spirv_program = try spirv.analyze(&spirv_arena, .{
.target = try switch (sokol.gfx.queryBackend()) {
.GLCORE => spirv.Target.glsl,
else => error.InvalidSPIRV,
},
.vertex_source = .{
.ops = &spirv.to_ops(@embedFile("./shaders/2d_default.vert.spv")),
},
.fragment_source = .{
.ops = desc.fragment_spirv_ops,
},
});
const shader = sokol.gfx.makeShader(shader_desc: {
const shader_desc = sokol.gfx.ShaderDesc{
.vs = stage_desc(spirv_program.vertex_stage),
.fs = stage_desc(spirv_program.fragment_stage),
};
// TODO: Vertex attributes, for some reason they aren't needed?
break: shader_desc shader_desc;
});
// TODO: Review blending rules.
const pipeline = sokol.gfx.makePipeline(pipeline_desc: {
var pipeline_desc = sokol.gfx.PipelineDesc{
.label = "Effect pipeline",
.layout = vertex_layout_state,
.shader = shader,
.index_type = .UINT16,
.blend_color = .{.r = 1.0, .g = 1.0, .b = 1.0, .a = 1.0},
};
pipeline_desc.colors[0] = .{
.write_mask = .RGBA,
.blend = .{
.enabled = true,
.src_factor_rgb = .SRC_ALPHA,
.dst_factor_rgb = .ONE_MINUS_SRC_ALPHA,
},
};
break: pipeline_desc pipeline_desc;
});
const properties = try coral.heap.allocator.alloc(
coral.io.Byte,
if (spirv_program.fragment_stage.has_uniform_blocks[0]) |uniform_block| uniform_block.size() else 0,
);
errdefer {
coral.heap.allocator.free(properties);
sokol.gfx.destroyPipeline(pipeline);
sokol.gfx.destroyShader(shader);
}
return .{
.shader = shader,
.pipeline = pipeline,
.properties = properties,
};
}
fn stage_desc(spirv_stage: spirv.Stage) sokol.gfx.ShaderStageDesc {
var stage = sokol.gfx.ShaderStageDesc{
.entry = spirv_stage.entry_point,
.source = spirv_stage.source,
};
for (0 .. spirv.Stage.max_uniform_blocks) |slot| {
const uniform_block = &(spirv_stage.has_uniform_blocks[slot] orelse {
continue;
});
const stage_uniform_block = &stage.uniform_blocks[slot];
stage_uniform_block.layout = switch (uniform_block.layout) {
.std140 => .STD140,
};
stage_uniform_block.size = uniform_block.size();
for (stage_uniform_block.uniforms[0 .. uniform_block.uniforms.len], uniform_block.uniforms) |*stage_uniform, uniform| {
stage_uniform.* = .{
.type = switch (uniform.type) {
.float => .FLOAT,
.float2 => .FLOAT2,
.float3 => .FLOAT3,
.float4 => .FLOAT4,
.integer => .INT,
.integer2 => .INT2,
.integer3 => .INT3,
.integer4 => .INT4,
.matrix4 => .MAT4,
},
.name = uniform.name,
.array_count = uniform.len,
};
}
}
for (0 .. spirv.Stage.max_images) |slot| {
const image = &(spirv_stage.has_images[slot] orelse {
continue;
});
stage.images[slot] = .{
.multisampled = image.is_multisampled,
.image_type = ._2D,
.sample_type = .FLOAT,
.used = true,
};
}
for (0 .. spirv.Stage.max_samplers) |slot| {
const sampler = &(spirv_stage.has_samplers[slot] orelse {
continue;
});
stage.samplers[slot] = .{
.sampler_type = switch (sampler.*) {
.filtering => .FILTERING,
.non_filtering => .NONFILTERING,
.comparison => .COMPARISON,
},
.used = true,
};
}
for (0 .. spirv.Stage.max_image_sampler_pairs) |slot| {
const image_sampler_pair = &(spirv_stage.has_image_sampler_pairs[slot] orelse {
continue;
});
stage.image_sampler_pairs[slot] = .{
.glsl_name = image_sampler_pair.name,
.image_slot = @intCast(image_sampler_pair.image_slot),
.sampler_slot = @intCast(image_sampler_pair.sampler_slot),
.used = true,
};
}
return stage;
}
const vertex_layout_state = sokol.gfx.VertexLayoutState{
.attrs = get: {
var attrs = [_]sokol.gfx.VertexAttrState{.{}} ** 16;
attrs[0] = .{
.format = .FLOAT2,
.buffer_index = 0,
};
attrs[1] = .{
.format = .FLOAT2,
.buffer_index = 0,
};
attrs[2] = .{
.format = .FLOAT2,
.buffer_index = 1,
};
attrs[3] = .{
.format = .FLOAT2,
.buffer_index = 1,
};
attrs[4] = .{
.format = .FLOAT2,
.buffer_index = 1,
};
attrs[5] = .{
.format = .UBYTE4N,
.buffer_index = 1,
};
attrs[6] = .{
.format = .FLOAT,
.buffer_index = 1,
};
attrs[7] = .{
.format = .FLOAT4,
.buffer_index = 1,
};
break: get attrs;
},
.buffers = get: {
var vertex_buffer_layouts = [_]sokol.gfx.VertexBufferLayoutState{.{}} ** 8;
vertex_buffer_layouts[1].step_func = .PER_INSTANCE;
break: get vertex_buffer_layouts;
},
};
};
const EffectPool = coral.Pool(Effect);
const Self = @This();
pub const Texture = struct {
width: u16,
height: u16,
access: Access,
pub const Access = union (enum) {
empty,
render: RenderAccess,
static: StaticAccess,
};
pub const RenderAccess = struct {
color_image: sokol.gfx.Image,
depth_image: sokol.gfx.Image,
attachments: sokol.gfx.Attachments,
};
pub const StaticAccess = struct {
image: sokol.gfx.Image,
};
pub fn deinit(self: *Texture) void {
switch (self.access) {
.render => |render| {
sokol.gfx.destroyImage(render.color_image);
sokol.gfx.destroyImage(render.depth_image);
sokol.gfx.destroyAttachments(render.attachments);
},
.static => |static| {
sokol.gfx.destroyImage(static.image);
},
.empty => {},
}
self.* = undefined;
}
pub fn init(desc: gfx.Texture.Desc) std.mem.Allocator.Error!Texture {
const pixel_format = switch (desc.format) {
.rgba8 => sokol.gfx.PixelFormat.RGBA8,
.bgra8 => sokol.gfx.PixelFormat.BGRA8,
};
switch (desc.access) {
.render => |render| {
if (render.width == 0 or render.height == 0) {
return .{
.width = render.width,
.height = render.height,
.access = .empty,
};
}
const color_image = sokol.gfx.makeImage(.{
.pixel_format = pixel_format,
.width = render.width,
.height = render.height,
.render_target = true,
});
const depth_image = sokol.gfx.makeImage(.{
.width = render.width,
.height = render.height,
.render_target = true,
.pixel_format = .DEPTH_STENCIL,
});
const attachments = sokol.gfx.makeAttachments(attachments_desc: {
var attachments_desc = sokol.gfx.AttachmentsDesc{
.depth_stencil = .{
.image = depth_image,
},
};
attachments_desc.colors[0] = .{
.image = color_image,
};
break: attachments_desc attachments_desc;
});
return .{
.width = render.width,
.height = render.height,
.access = .{
.render = .{
.attachments = attachments,
.color_image = color_image,
.depth_image = depth_image,
},
},
};
},
.static => |static| {
const height = std.math.cast(u16, static.data.len / (static.width * desc.format.byte_size())) orelse {
return error.OutOfMemory;
};
if (static.width == 0 or height == 0) {
return .{
.width = static.width,
.height = height,
.access = .empty,
};
}
const image = sokol.gfx.makeImage(image_desc: {
var image_desc = sokol.gfx.ImageDesc{
.height = height,
.pixel_format = pixel_format,
.width = static.width,
};
image_desc.data.subimage[0][0] = sokol.gfx.asRange(static.data);
break: image_desc image_desc;
});
errdefer {
sokol.gfx.destroyImage(image);
}
return .{
.width = static.width,
.height = height,
.access = .{
.static = .{
.image = image,
},
},
};
},
}
}
};
const TexturePool = coral.Pool(Texture);
pub fn create_effect(self: *Self, desc: gfx.Effect.Desc) !gfx.Effect {
var effect = try Effect.init(desc);
errdefer effect.deinit();
return @enumFromInt(try self.effects.insert(effect));
}
pub fn create_texture(self: *Self, desc: gfx.Texture.Desc) !gfx.Texture {
var texture = try Texture.init(desc);
errdefer texture.deinit();
return @enumFromInt(try self.textures.insert(texture));
}
pub fn deinit(self: *Self) void {
var textures = self.textures.values();
while (textures.next()) |texture| {
texture.deinit();
}
self.textures.deinit();
var effects = self.effects.values();
while (effects.next()) |effect| {
effect.deinit();
}
self.effects.deinit();
self.* = undefined;
}
pub fn destroy_effect(self: *Self, handle: gfx.Effect) bool {
switch (handle) {
.default => {},
else => {
var effect = self.effects.remove(@intFromEnum(handle)) orelse {
return false;
};
effect.deinit();
},
}
return true;
}
pub fn destroy_texture(self: *Self, handle: gfx.Texture) bool {
switch (handle) {
.default => {},
else => {
var texture = self.textures.remove(@intFromEnum(handle)) orelse {
return false;
};
texture.deinit();
},
}
return true;
}
pub fn get_effect(self: *Self, handle: gfx.Effect) ?*Effect {
return self.effects.get(@intFromEnum(handle));
}
pub fn get_texture(self: *Self, handle: gfx.Texture) ?*Texture {
return self.textures.get(@intFromEnum(handle));
}
pub fn init() !Self {
var pools = Self{
.effects = EffectPool.init(coral.heap.allocator),
.textures = TexturePool.init(coral.heap.allocator),
};
errdefer {
pools.deinit();
}
const assert = struct {
fn is_handle(expected: anytype, actual: @TypeOf(expected)) void {
std.debug.assert(actual == expected);
}
};
assert.is_handle(gfx.Effect.default, try pools.create_effect(.{
.fragment_spirv_ops = &spirv.to_ops(@embedFile("./shaders/2d_default.frag.spv")),
}));
assert.is_handle(gfx.Texture.default, try pools.create_texture(.{
.format = .rgba8,
.access = .{
.static = .{
.data = std.mem.asBytes(&[_]u32{
0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080,
0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000,
0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080,
0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000,
0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080,
0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000,
0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080,
0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000,
}),
.width = 8,
},
},
}));
assert.is_handle(gfx.Texture.backbuffer, try pools.create_texture(.{
.format = .rgba8,
.access = .{
.render = .{
.width = 0,
.height = 0,
},
}
}));
return pools;
}

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@ -1,79 +0,0 @@
const coral = @import("coral");
const gfx = @import("../gfx.zig");
const std = @import("std");
pub fn load_file(arena: *std.heap.ArenaAllocator, storage: coral.files.Storage, path: []const u8) !gfx.Texture.Desc {
const header = try storage.read_little(path, 0, extern struct {
type: [2]u8 align (1),
file_size: u32 align (1),
reserved: [2]u16 align (1),
image_offset: u32 align (1),
header_size: u32 align (1),
pixel_width: i32 align (1),
pixel_height: i32 align (1),
color_planes: u16 align (1),
bits_per_pixel: u16 align (1),
compression_method: u32 align (1),
image_size: u32 align(1),
pixels_per_meter_x: i32 align (1),
pixels_per_meter_y: i32 align (1),
palette_colors_used: u32 align (1),
important_colors_used: u32 align (1),
}) orelse {
return error.FormatUnsupported;
};
if (!std.mem.eql(u8, &header.type, "BM")) {
return error.FormatUnsupported;
}
const pixel_width = std.math.cast(u16, header.pixel_width) orelse {
return error.FormatUnsupported;
};
const pixels = try arena.allocator().alloc(coral.io.Byte, header.image_size);
const bytes_per_pixel = header.bits_per_pixel / coral.io.bits_per_byte;
const alignment = 4;
const byte_stride = pixel_width * bytes_per_pixel;
const padded_byte_stride = alignment * @divTrunc((byte_stride + alignment - 1), alignment);
const byte_padding = coral.scalars.sub(padded_byte_stride, byte_stride) orelse 0;
var buffer_offset: usize = 0;
var file_offset = @as(usize, header.image_offset);
switch (header.bits_per_pixel) {
32 => {
while (buffer_offset < pixels.len) {
const line = pixels[buffer_offset .. buffer_offset + byte_stride];
if (try storage.read(path, line, file_offset) != byte_stride) {
return error.FormatUnsupported;
}
for (0 .. pixel_width) |i| {
const line_offset = i * 4;
const pixel = line[line_offset .. line_offset + 4];
std.mem.swap(u8, &pixel[0], &pixel[2]);
}
file_offset += line.len + byte_padding;
buffer_offset += padded_byte_stride;
}
},
else => return error.FormatUnsupported,
}
return .{
.format = .rgba8,
.access = .{
.static = .{
.width = pixel_width,
.data = pixels,
},
},
};
}

428
src/ona/gfx/rendering.zig Normal file
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@ -0,0 +1,428 @@
const Resources = @import("./Resources.zig");
const coral = @import("coral");
const ext = @import("../ext.zig");
const gfx = @import("../gfx.zig");
const spirv = @import("./spirv.zig");
const sokol = @import("sokol");
const std = @import("std");
const Frame = struct {
texture_batch_buffers: coral.stack.Sequential(sokol.gfx.Buffer),
quad_index_buffer: sokol.gfx.Buffer,
quad_vertex_buffer: sokol.gfx.Buffer,
drawn_count: usize = 0,
flushed_count: usize = 0,
current_source_texture: gfx.Texture = .default,
current_target_texture: gfx.Texture = .backbuffer,
current_effect: gfx.Effect = .default,
const DrawTexture = extern struct {
transform: gfx.Transform2D,
tint: @Vector(4, u8) = @splat(std.math.maxInt(u8)),
depth: f32 = 0,
texture_offset: @Vector(2, f32) = @splat(0),
texture_size: @Vector(2, f32) = @splat(1),
};
const batches_per_buffer = 512;
pub fn deinit(self: *Frame) void {
for (self.texture_batch_buffers.values) |buffer| {
sokol.gfx.destroyBuffer(buffer);
}
self.texture_batch_buffers.deinit();
self.* = undefined;
}
pub fn init() !Frame {
const Vertex = struct {
xy: @Vector(2, f32),
uv: @Vector(2, f32),
};
const quad_index_buffer = sokol.gfx.makeBuffer(.{
.data = sokol.gfx.asRange(&[_]u16{0, 1, 2, 0, 2, 3}),
.type = .INDEXBUFFER,
});
const quad_vertex_buffer = sokol.gfx.makeBuffer(.{
.data = sokol.gfx.asRange(&[_]Vertex{
.{.xy = .{-0.5, -0.5}, .uv = .{0, 1}},
.{.xy = .{0.5, -0.5}, .uv = .{1, 1}},
.{.xy = .{0.5, 0.5}, .uv = .{1, 0}},
.{.xy = .{-0.5, 0.5}, .uv = .{0, 0}},
}),
.type = .VERTEXBUFFER,
});
return .{
.texture_batch_buffers = .{.allocator = coral.heap.allocator},
.quad_index_buffer = quad_index_buffer,
.quad_vertex_buffer = quad_vertex_buffer,
};
}
pub fn draw_texture(self: *Frame, pools: *Resources, command: gfx.Commands.DrawTextureCommand) !void {
if (command.texture != self.current_source_texture) {
self.flush(pools);
}
self.current_source_texture = command.texture;
const has_filled_current_buffer = (self.drawn_count % batches_per_buffer) == 0;
const buffer_count = self.drawn_count / batches_per_buffer;
if (has_filled_current_buffer and buffer_count == self.texture_batch_buffers.len()) {
const instance_buffer = sokol.gfx.makeBuffer(.{
.size = @sizeOf(DrawTexture) * batches_per_buffer,
.usage = .STREAM,
});
errdefer sokol.gfx.destroyBuffer(instance_buffer);
try self.texture_batch_buffers.push_grow(instance_buffer);
}
_ = sokol.gfx.appendBuffer(self.texture_batch_buffers.get().?, sokol.gfx.asRange(&DrawTexture{
.transform = command.transform,
}));
self.drawn_count += 1;
}
pub fn finish(self: *Frame, pools: *Resources) void {
self.flush(pools);
self.drawn_count = 0;
self.flushed_count = 0;
self.current_source_texture = .default;
self.current_target_texture = .backbuffer;
self.current_effect = .default;
}
pub fn flush(self: *Frame, pools: *Resources) void {
if (self.flushed_count == self.drawn_count) {
return;
}
var bindings = sokol.gfx.Bindings{
.index_buffer = self.quad_index_buffer,
};
bindings.vertex_buffers[vertex_indices.mesh] = self.quad_vertex_buffer;
switch (pools.get_texture(self.current_source_texture).?.access) {
.render => |render| {
bindings.fs.images[0] = render.color_image;
bindings.fs.samplers[0] = default_sampler;
},
.static => |static| {
bindings.fs.images[0] = static.image;
bindings.fs.samplers[0] = default_sampler;
},
.empty => {
@panic("Cannot render empty textures");
},
}
const effect = pools.get_effect(self.current_effect).?;
sokol.gfx.applyPipeline(effect.pipeline);
const texture = pools.get_texture(self.current_target_texture).?;
sokol.gfx.applyUniforms(.VS, 0, sokol.gfx.asRange(&coral.lina.orthographic_projection(-1.0, 1.0, .{
.left = 0,
.top = 0,
.right = @floatFromInt(texture.width),
.bottom = @floatFromInt(texture.height),
})));
if (effect.properties.len != 0) {
sokol.gfx.applyUniforms(.FS, 0, sokol.gfx.asRange(effect.properties));
}
while (true) {
const buffer_index = self.flushed_count / batches_per_buffer;
const buffer_offset = self.flushed_count % batches_per_buffer;
const instances_to_flush = @min(batches_per_buffer - buffer_offset, self.drawn_count - self.flushed_count);
self.flushed_count += instances_to_flush;
bindings.vertex_buffers[vertex_indices.instance] = self.texture_batch_buffers.values[buffer_index];
bindings.vertex_buffer_offsets[vertex_indices.instance] = @intCast(@sizeOf(DrawTexture) * buffer_offset);
sokol.gfx.applyBindings(bindings);
sokol.gfx.draw(0, 6, @intCast(instances_to_flush));
if (self.flushed_count == self.drawn_count) {
break;
}
}
}
pub fn set_effect(self: *Frame, pools: *Resources, command: gfx.Commands.SetEffectCommand) void {
if (command.effect != self.current_effect) {
self.flush(pools);
}
self.current_effect = command.effect;
if (pools.get_effect(self.current_effect)) |effect| {
@memcpy(effect.properties, command.properties);
}
}
pub fn set_target(self: *Frame, pools: *Resources, command: gfx.Commands.SetTargetCommand) void {
sokol.gfx.endPass();
var pass = sokol.gfx.Pass{
.action = .{
.stencil = .{
.load_action = .CLEAR,
},
},
};
if (command.clear_color) |color| {
pass.action.colors[0] = .{
.load_action = .CLEAR,
.clear_value = @bitCast(color),
};
} else {
pass.action.colors[0] = .{.load_action = .LOAD};
}
if (command.clear_depth) |depth| {
pass.action.depth = .{
.load_action = .CLEAR,
.clear_value = depth,
};
} else {
pass.action.depth = .{.load_action = .LOAD};
}
pass.attachments = switch (pools.get_texture(self.current_target_texture).?.access) {
.static => @panic("Cannot render to static textures"),
.empty => @panic("Cannot render to empty textures"),
.render => |render| render.attachments,
};
self.current_target_texture = command.texture;
sokol.gfx.beginPass(pass);
}
};
var default_sampler: sokol.gfx.Sampler = undefined;
const vertex_indices = .{
.mesh = 0,
.instance = 1,
};
pub fn process_work(pending_work: *gfx.Assets.WorkQueue, window: *ext.SDL_Window) !void {
const context = configure_and_create: {
var result = @as(c_int, 0);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_CONTEXT_FLAGS, ext.SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_CONTEXT_PROFILE_MASK, ext.SDL_GL_CONTEXT_PROFILE_CORE);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_CONTEXT_MAJOR_VERSION, 3);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_CONTEXT_MINOR_VERSION, 3);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_DOUBLEBUFFER, 1);
if (result != 0) {
return error.Unsupported;
}
break: configure_and_create ext.SDL_GL_CreateContext(window);
};
defer ext.SDL_GL_DeleteContext(context);
sokol.gfx.setup(.{
.environment = .{
.defaults = .{
.color_format = .RGBA8,
.depth_format = .DEPTH_STENCIL,
.sample_count = 1,
},
},
.logger = .{
.func = sokol.log.func,
},
});
defer {
sokol.gfx.shutdown();
}
var resources = try Resources.init();
defer {
resources.deinit();
}
var frame = try Frame.init();
defer {
frame.deinit();
}
default_sampler = sokol.gfx.makeSampler(.{});
while (true) {
switch (pending_work.dequeue()) {
.load_effect => |load| {
const effect = try resources.create_effect(load.desc);
if (!load.loaded.resolve(effect)) {
std.debug.assert(resources.destroy_effect(effect));
}
},
.load_texture => |load| {
const texture = try resources.create_texture(load.desc);
if (!load.loaded.resolve(texture)) {
std.debug.assert(resources.destroy_texture(texture));
}
},
.render_frame => |render_frame| {
const backbuffer = resources.get_texture(.backbuffer).?;
if (backbuffer.width != render_frame.width or backbuffer.height != render_frame.height) {
backbuffer.deinit();
backbuffer.* = try Resources.Texture.init(.{
.format = .rgba8,
.access = .{
.render = .{
.width = render_frame.width,
.height = render_frame.height,
},
},
});
}
sokol.gfx.beginPass(pass: {
var pass = sokol.gfx.Pass{
.action = .{
.stencil = .{
.load_action = .CLEAR,
},
.depth = .{
.load_action = .CLEAR,
.clear_value = 0,
}
},
};
pass.action.colors[0] = .{
.load_action = .CLEAR,
.clear_value = @bitCast(render_frame.clear_color),
};
pass.attachments = resources.get_texture(.backbuffer).?.access.render.attachments;
break: pass pass;
});
var has_command_params = render_frame.has_command_params;
while (has_command_params) |command_params| : (has_command_params = command_params.has_next) {
for (command_params.param.submitted_commands()) |command| {
try switch (command) {
.draw_texture => |draw_texture| frame.draw_texture(&resources, draw_texture),
.set_effect => |set_effect| frame.set_effect(&resources, set_effect),
.set_target => |set_target| frame.set_target(&resources, set_target),
};
}
frame.flush(&resources);
if (frame.current_target_texture != .backbuffer) {
frame.set_target(&resources, .{
.texture = .backbuffer,
.clear_color = null,
.clear_depth = null,
.clear_stencil = null,
});
}
}
sokol.gfx.endPass();
sokol.gfx.beginPass(swapchain_pass: {
var pass = sokol.gfx.Pass{
.swapchain = .{
.width = render_frame.width,
.height = render_frame.height,
.sample_count = 1,
.color_format = .RGBA8,
.depth_format = .DEPTH_STENCIL,
.gl = .{.framebuffer = 0},
},
.action = .{
.stencil = .{.load_action = .CLEAR},
.depth = .{.load_action = .CLEAR},
},
};
pass.action.colors[0] = .{.load_action = .CLEAR};
break: swapchain_pass pass;
});
try frame.draw_texture(&resources, .{
.texture = .backbuffer,
.transform = .{
.origin = .{@as(f32, @floatFromInt(render_frame.width)) / 2, @as(f32, @floatFromInt(render_frame.height)) / 2},
.xbasis = .{@floatFromInt(render_frame.width), 0},
.ybasis = .{0, @floatFromInt(render_frame.height)},
},
});
frame.finish(&resources);
sokol.gfx.endPass();
sokol.gfx.commit();
ext.SDL_GL_SwapWindow(window);
render_frame.finished.set();
},
.shutdown => {
break;
},
.unload_effect => |unload| {
if (!resources.destroy_effect(unload.handle)) {
@panic("Attempt to unload a non-existent effect");
}
},
.unload_texture => |unload| {
if (!resources.destroy_texture(unload.handle)) {
@panic("Attempt to unload a non-existent texture");
}
},
}
}
}
var work_thread: std.Thread = undefined;

View File

@ -1,908 +0,0 @@
const coral = @import("coral");
const ext = @import("../ext.zig");
const gfx = @import("../gfx.zig");
const spirv = @import("./spirv.zig");
const sokol = @import("sokol");
const std = @import("std");
const Frame = struct {
swapchain: sokol.gfx.Swapchain,
drawn_count: usize = 0,
flushed_count: usize = 0,
current_source_texture: gfx.Texture = .default,
current_target_texture: gfx.Texture = .backbuffer,
current_effect: gfx.Effect = .default,
const DrawTexture = extern struct {
transform: gfx.Transform2D,
tint: @Vector(4, u8) = @splat(std.math.maxInt(u8)),
depth: f32 = 0,
texture_offset: @Vector(2, f32) = @splat(0),
texture_size: @Vector(2, f32) = @splat(1),
};
pub fn draw_texture(self: *Frame, pools: *Resources, command: gfx.Commands.DrawTextureCommand) !void {
if (command.texture != self.current_source_texture) {
self.flush(pools);
}
self.current_source_texture = command.texture;
const has_filled_current_buffer = (self.drawn_count % batches_per_buffer) == 0;
const buffer_count = self.drawn_count / batches_per_buffer;
if (has_filled_current_buffer and buffer_count == texture_batch_buffers.len()) {
const instance_buffer = sokol.gfx.makeBuffer(.{
.size = @sizeOf(DrawTexture) * batches_per_buffer,
.usage = .STREAM,
});
errdefer sokol.gfx.destroyBuffer(instance_buffer);
try texture_batch_buffers.push_grow(instance_buffer);
}
_ = sokol.gfx.appendBuffer(texture_batch_buffers.get().?, sokol.gfx.asRange(&DrawTexture{
.transform = command.transform,
}));
self.drawn_count += 1;
}
pub fn flush(self: *Frame, pools: *Resources) void {
if (self.flushed_count == self.drawn_count) {
return;
}
var bindings = sokol.gfx.Bindings{
.index_buffer = quad_index_buffer,
};
bindings.vertex_buffers[vertex_indices.mesh] = quad_vertex_buffer;
switch (pools.get_texture(self.current_source_texture).?.access) {
.render => |render| {
bindings.fs.images[0] = render.color_image;
bindings.fs.samplers[0] = default_sampler;
},
.static => |static| {
bindings.fs.images[0] = static.image;
bindings.fs.samplers[0] = default_sampler;
},
.empty => {
@panic("Cannot render empty textures");
},
}
const effect = pools.get_effect(self.current_effect).?;
sokol.gfx.applyPipeline(effect.pipeline);
const texture = pools.get_texture(self.current_target_texture).?;
sokol.gfx.applyUniforms(.VS, 0, sokol.gfx.asRange(&coral.lina.orthographic_projection(-1.0, 1.0, .{
.left = 0,
.top = 0,
.right = @floatFromInt(texture.width),
.bottom = @floatFromInt(texture.height),
})));
if (effect.properties.len != 0) {
sokol.gfx.applyUniforms(.FS, 0, sokol.gfx.asRange(effect.properties));
}
while (true) {
const buffer_index = self.flushed_count / batches_per_buffer;
const buffer_offset = self.flushed_count % batches_per_buffer;
const instances_to_flush = @min(batches_per_buffer - buffer_offset, self.drawn_count - self.flushed_count);
self.flushed_count += instances_to_flush;
bindings.vertex_buffers[vertex_indices.instance] = texture_batch_buffers.values[buffer_index];
bindings.vertex_buffer_offsets[vertex_indices.instance] = @intCast(@sizeOf(DrawTexture) * buffer_offset);
sokol.gfx.applyBindings(bindings);
sokol.gfx.draw(0, 6, @intCast(instances_to_flush));
if (self.flushed_count == self.drawn_count) {
break;
}
}
}
pub fn set_effect(self: *Frame, pools: *Resources, command: gfx.Commands.SetEffectCommand) void {
if (command.effect != self.current_effect) {
self.flush(pools);
}
self.current_effect = command.effect;
if (pools.get_effect(self.current_effect)) |effect| {
@memcpy(effect.properties, command.properties);
}
}
pub fn set_target(self: *Frame, pools: *Resources, command: gfx.Commands.SetTargetCommand) void {
sokol.gfx.endPass();
var pass = sokol.gfx.Pass{
.action = .{
.stencil = .{
.load_action = .CLEAR,
},
},
};
if (command.clear_color) |color| {
pass.action.colors[0] = .{
.load_action = .CLEAR,
.clear_value = @bitCast(color),
};
} else {
pass.action.colors[0] = .{.load_action = .LOAD};
}
if (command.clear_depth) |depth| {
pass.action.depth = .{
.load_action = .CLEAR,
.clear_value = depth,
};
} else {
pass.action.depth = .{.load_action = .LOAD};
}
pass.attachments = switch (pools.get_texture(self.current_target_texture).?.access) {
.static => @panic("Cannot render to static textures"),
.empty => @panic("Cannot render to empty textures"),
.render => |render| render.attachments,
};
self.current_target_texture = command.texture;
sokol.gfx.beginPass(pass);
}
const storage_bindings = .{
.engine = 0,
.material = 1,
};
var texture_batch_buffers = coral.stack.Sequential(sokol.gfx.Buffer){.allocator = coral.heap.allocator};
const batches_per_buffer = 512;
};
const Resources = struct {
effects: EffectPool,
textures: TexturePool,
pub const Effect = struct {
shader: sokol.gfx.Shader,
pipeline: sokol.gfx.Pipeline,
properties: []coral.io.Byte,
pub fn deinit(self: *Effect) void {
coral.heap.allocator.free(self.properties);
sokol.gfx.destroyPipeline(self.pipeline);
sokol.gfx.destroyShader(self.shader);
self.* = undefined;
}
pub fn init(desc: gfx.Effect.Desc) spirv.Error!Effect {
var spirv_arena = std.heap.ArenaAllocator.init(coral.heap.allocator);
defer {
spirv_arena.deinit();
}
const spirv_program = try spirv.analyze(&spirv_arena, .{
.target = try switch (sokol.gfx.queryBackend()) {
.GLCORE => spirv.Target.glsl,
else => error.InvalidSPIRV,
},
.vertex_source = .{
.ops = &spirv.to_ops(@embedFile("./shaders/2d_default.vert.spv")),
},
.fragment_source = .{
.ops = desc.fragment_spirv_ops,
},
});
const shader = sokol.gfx.makeShader(shader_desc: {
const shader_desc = sokol.gfx.ShaderDesc{
.vs = stage_desc(spirv_program.vertex_stage),
.fs = stage_desc(spirv_program.fragment_stage),
};
// TODO: Vertex attributes, for some reason they aren't needed?
break: shader_desc shader_desc;
});
// TODO: Review blending rules.
const pipeline = sokol.gfx.makePipeline(pipeline_desc: {
var pipeline_desc = sokol.gfx.PipelineDesc{
.label = "Effect pipeline",
.layout = vertex_layout_state,
.shader = shader,
.index_type = .UINT16,
.blend_color = .{.r = 1.0, .g = 1.0, .b = 1.0, .a = 1.0},
};
pipeline_desc.colors[0] = .{
.write_mask = .RGBA,
.blend = .{
.enabled = true,
.src_factor_rgb = .SRC_ALPHA,
.dst_factor_rgb = .ONE_MINUS_SRC_ALPHA,
},
};
break: pipeline_desc pipeline_desc;
});
const properties = try coral.heap.allocator.alloc(
coral.io.Byte,
if (spirv_program.fragment_stage.has_uniform_blocks[0]) |uniform_block| uniform_block.size() else 0,
);
errdefer {
coral.heap.allocator.free(properties);
sokol.gfx.destroyPipeline(pipeline);
sokol.gfx.destroyShader(shader);
}
return .{
.shader = shader,
.pipeline = pipeline,
.properties = properties,
};
}
fn stage_desc(spirv_stage: spirv.Stage) sokol.gfx.ShaderStageDesc {
var stage = sokol.gfx.ShaderStageDesc{
.entry = spirv_stage.entry_point,
.source = spirv_stage.source,
};
for (0 .. spirv.Stage.max_uniform_blocks) |slot| {
const uniform_block = &(spirv_stage.has_uniform_blocks[slot] orelse {
continue;
});
const stage_uniform_block = &stage.uniform_blocks[slot];
stage_uniform_block.layout = switch (uniform_block.layout) {
.std140 => .STD140,
};
stage_uniform_block.size = uniform_block.size();
for (stage_uniform_block.uniforms[0 .. uniform_block.uniforms.len], uniform_block.uniforms) |*stage_uniform, uniform| {
stage_uniform.* = .{
.type = switch (uniform.type) {
.float => .FLOAT,
.float2 => .FLOAT2,
.float3 => .FLOAT3,
.float4 => .FLOAT4,
.integer => .INT,
.integer2 => .INT2,
.integer3 => .INT3,
.integer4 => .INT4,
.matrix4 => .MAT4,
},
.name = uniform.name,
.array_count = uniform.len,
};
}
}
for (0 .. spirv.Stage.max_images) |slot| {
const image = &(spirv_stage.has_images[slot] orelse {
continue;
});
stage.images[slot] = .{
.multisampled = image.is_multisampled,
.image_type = ._2D,
.sample_type = .FLOAT,
.used = true,
};
}
for (0 .. spirv.Stage.max_samplers) |slot| {
const sampler = &(spirv_stage.has_samplers[slot] orelse {
continue;
});
stage.samplers[slot] = .{
.sampler_type = switch (sampler.*) {
.filtering => .FILTERING,
.non_filtering => .NONFILTERING,
.comparison => .COMPARISON,
},
.used = true,
};
}
for (0 .. spirv.Stage.max_image_sampler_pairs) |slot| {
const image_sampler_pair = &(spirv_stage.has_image_sampler_pairs[slot] orelse {
continue;
});
stage.image_sampler_pairs[slot] = .{
.glsl_name = image_sampler_pair.name,
.image_slot = @intCast(image_sampler_pair.image_slot),
.sampler_slot = @intCast(image_sampler_pair.sampler_slot),
.used = true,
};
}
return stage;
}
const vertex_layout_state = sokol.gfx.VertexLayoutState{
.attrs = get: {
var attrs = [_]sokol.gfx.VertexAttrState{.{}} ** 16;
attrs[0] = .{
.format = .FLOAT2,
.buffer_index = 0,
};
attrs[1] = .{
.format = .FLOAT2,
.buffer_index = 0,
};
attrs[2] = .{
.format = .FLOAT2,
.buffer_index = 1,
};
attrs[3] = .{
.format = .FLOAT2,
.buffer_index = 1,
};
attrs[4] = .{
.format = .FLOAT2,
.buffer_index = 1,
};
attrs[5] = .{
.format = .UBYTE4N,
.buffer_index = 1,
};
attrs[6] = .{
.format = .FLOAT,
.buffer_index = 1,
};
attrs[7] = .{
.format = .FLOAT4,
.buffer_index = 1,
};
break: get attrs;
},
.buffers = get: {
var vertex_buffer_layouts = [_]sokol.gfx.VertexBufferLayoutState{.{}} ** 8;
vertex_buffer_layouts[1].step_func = .PER_INSTANCE;
break: get vertex_buffer_layouts;
},
};
};
pub const Texture = struct {
width: u16,
height: u16,
access: Access,
pub const Access = union (enum) {
empty,
render: RenderAccess,
static: StaticAccess,
};
pub const RenderAccess = struct {
color_image: sokol.gfx.Image,
depth_image: sokol.gfx.Image,
attachments: sokol.gfx.Attachments,
};
pub const StaticAccess = struct {
image: sokol.gfx.Image,
};
pub fn deinit(self: *Texture) void {
switch (self.access) {
.render => |render| {
sokol.gfx.destroyImage(render.color_image);
sokol.gfx.destroyImage(render.depth_image);
sokol.gfx.destroyAttachments(render.attachments);
},
.static => |static| {
sokol.gfx.destroyImage(static.image);
},
.empty => {},
}
self.* = undefined;
}
pub fn init(desc: gfx.Texture.Desc) std.mem.Allocator.Error!Texture {
const pixel_format = switch (desc.format) {
.rgba8 => sokol.gfx.PixelFormat.RGBA8,
.bgra8 => sokol.gfx.PixelFormat.BGRA8,
};
switch (desc.access) {
.render => |render| {
if (render.width == 0 or render.height == 0) {
return .{
.width = render.width,
.height = render.height,
.access = .empty,
};
}
const color_image = sokol.gfx.makeImage(.{
.pixel_format = pixel_format,
.width = render.width,
.height = render.height,
.render_target = true,
});
const depth_image = sokol.gfx.makeImage(.{
.width = render.width,
.height = render.height,
.render_target = true,
.pixel_format = .DEPTH_STENCIL,
});
const attachments = sokol.gfx.makeAttachments(attachments_desc: {
var attachments_desc = sokol.gfx.AttachmentsDesc{
.depth_stencil = .{
.image = depth_image,
},
};
attachments_desc.colors[0] = .{
.image = color_image,
};
break: attachments_desc attachments_desc;
});
return .{
.width = render.width,
.height = render.height,
.access = .{
.render = .{
.attachments = attachments,
.color_image = color_image,
.depth_image = depth_image,
},
},
};
},
.static => |static| {
const height = std.math.cast(u16, static.data.len / (static.width * desc.format.byte_size())) orelse {
return error.OutOfMemory;
};
if (static.width == 0 or height == 0) {
return .{
.width = static.width,
.height = height,
.access = .empty,
};
}
const image = sokol.gfx.makeImage(image_desc: {
var image_desc = sokol.gfx.ImageDesc{
.height = height,
.pixel_format = pixel_format,
.width = static.width,
};
image_desc.data.subimage[0][0] = sokol.gfx.asRange(static.data);
break: image_desc image_desc;
});
errdefer {
sokol.gfx.destroyImage(image);
}
return .{
.width = static.width,
.height = height,
.access = .{
.static = .{
.image = image,
},
},
};
},
}
}
};
const EffectPool = coral.Pool(Effect);
const TexturePool = coral.Pool(Texture);
pub fn create_effect(self: *Resources, desc: gfx.Effect.Desc) !gfx.Effect {
var effect = try Effect.init(desc);
errdefer effect.deinit();
return @enumFromInt(try self.effects.insert(effect));
}
pub fn create_texture(self: *Resources, desc: gfx.Texture.Desc) !gfx.Texture {
var texture = try Texture.init(desc);
errdefer texture.deinit();
return @enumFromInt(try self.textures.insert(texture));
}
pub fn deinit(self: *Resources) void {
var textures = self.textures.values();
while (textures.next()) |texture| {
texture.deinit();
}
self.textures.deinit();
}
pub fn destroy_effect(self: *Resources, handle: gfx.Effect) bool {
switch (handle) {
.default => {},
else => {
var effect = self.effects.remove(@intFromEnum(handle)) orelse {
return false;
};
effect.deinit();
},
}
return true;
}
pub fn destroy_texture(self: *Resources, handle: gfx.Texture) bool {
switch (handle) {
.default => {},
else => {
var texture = self.textures.remove(@intFromEnum(handle)) orelse {
return false;
};
texture.deinit();
},
}
return true;
}
pub fn get_effect(self: *Resources, handle: gfx.Effect) ?*Effect {
return self.effects.get(@intFromEnum(handle));
}
pub fn get_texture(self: *Resources, handle: gfx.Texture) ?*Texture {
return self.textures.get(@intFromEnum(handle));
}
pub fn init(allocator: std.mem.Allocator) !Resources {
var pools = Resources{
.effects = EffectPool.init(allocator),
.textures = TexturePool.init(allocator),
};
errdefer {
pools.deinit();
}
const assert = struct {
fn is_handle(expected: anytype, actual: @TypeOf(expected)) void {
std.debug.assert(actual == expected);
}
};
assert.is_handle(gfx.Effect.default, try pools.create_effect(.{
.fragment_spirv_ops = &spirv.to_ops(@embedFile("./shaders/2d_default.frag.spv")),
}));
assert.is_handle(gfx.Texture.default, try pools.create_texture(.{
.format = .rgba8,
.access = .{
.static = .{
.data = std.mem.asBytes(&[_]u32{
0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080,
0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000,
0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080,
0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000,
0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080,
0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000,
0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080,
0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000, 0xFF800080, 0xFF000000,
}),
.width = 8,
},
},
}));
assert.is_handle(gfx.Texture.backbuffer, try pools.create_texture(.{
.format = .rgba8,
.access = .{
.render = .{
.width = 0,
.height = 0,
},
}
}));
return pools;
}
};
var default_sampler: sokol.gfx.Sampler = undefined;
var quad_index_buffer: sokol.gfx.Buffer = undefined;
var quad_vertex_buffer: sokol.gfx.Buffer = undefined;
const vertex_indices = .{
.mesh = 0,
.instance = 1,
};
pub fn run(pending_work: *gfx.Assets.WorkQueue, window: *ext.SDL_Window) !void {
const context = configure_and_create: {
var result = @as(c_int, 0);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_CONTEXT_FLAGS, ext.SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_CONTEXT_PROFILE_MASK, ext.SDL_GL_CONTEXT_PROFILE_CORE);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_CONTEXT_MAJOR_VERSION, 3);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_CONTEXT_MINOR_VERSION, 3);
result |= ext.SDL_GL_SetAttribute(ext.SDL_GL_DOUBLEBUFFER, 1);
if (result != 0) {
return error.Unsupported;
}
break: configure_and_create ext.SDL_GL_CreateContext(window);
};
defer ext.SDL_GL_DeleteContext(context);
sokol.gfx.setup(.{
.environment = .{
.defaults = .{
.color_format = .RGBA8,
.depth_format = .DEPTH_STENCIL,
.sample_count = 1,
},
},
.logger = .{
.func = sokol.log.func,
},
});
defer {
sokol.gfx.shutdown();
}
var pools = try Resources.init(coral.heap.allocator);
defer {
pools.deinit();
}
const Vertex = struct {
xy: @Vector(2, f32),
uv: @Vector(2, f32),
};
const quad_indices = [_]u16{0, 1, 2, 0, 2, 3};
const quad_vertices = [_]Vertex{
.{.xy = .{-0.5, -0.5}, .uv = .{0, 1}},
.{.xy = .{0.5, -0.5}, .uv = .{1, 1}},
.{.xy = .{0.5, 0.5}, .uv = .{1, 0}},
.{.xy = .{-0.5, 0.5}, .uv = .{0, 0}},
};
quad_index_buffer = sokol.gfx.makeBuffer(.{
.data = sokol.gfx.asRange(&quad_indices),
.type = .INDEXBUFFER,
});
quad_vertex_buffer = sokol.gfx.makeBuffer(.{
.data = sokol.gfx.asRange(&quad_vertices),
.type = .VERTEXBUFFER,
});
default_sampler = sokol.gfx.makeSampler(.{});
while (true) {
switch (pending_work.dequeue()) {
.load_effect => |load| {
const effect = try pools.create_effect(load.desc);
if (!load.loaded.resolve(effect)) {
std.debug.assert(pools.destroy_effect(effect));
}
},
.load_texture => |load| {
const texture = try pools.create_texture(load.desc);
if (!load.loaded.resolve(texture)) {
std.debug.assert(pools.destroy_texture(texture));
}
},
.render_frame => |render_frame| {
const backbuffer = pools.get_texture(.backbuffer).?;
if (backbuffer.width != render_frame.width or backbuffer.height != render_frame.height) {
backbuffer.deinit();
backbuffer.* = try Resources.Texture.init(.{
.format = .rgba8,
.access = .{
.render = .{
.width = render_frame.width,
.height = render_frame.height,
},
},
});
}
var frame = Frame{
.swapchain = .{
.width = render_frame.width,
.height = render_frame.height,
.sample_count = 1,
.color_format = .RGBA8,
.depth_format = .DEPTH_STENCIL,
.gl = .{.framebuffer = 0},
}
};
sokol.gfx.beginPass(pass: {
var pass = sokol.gfx.Pass{
.action = .{
.stencil = .{
.load_action = .CLEAR,
},
.depth = .{
.load_action = .CLEAR,
.clear_value = 0,
}
},
};
pass.action.colors[0] = .{
.load_action = .CLEAR,
.clear_value = @bitCast(render_frame.clear_color),
};
pass.attachments = pools.get_texture(.backbuffer).?.access.render.attachments;
break: pass pass;
});
var has_command_params = render_frame.has_command_params;
while (has_command_params) |command_params| : (has_command_params = command_params.has_next) {
for (command_params.param.submitted_commands()) |command| {
try switch (command) {
.draw_texture => |draw_texture| frame.draw_texture(&pools, draw_texture),
.set_effect => |set_effect| frame.set_effect(&pools, set_effect),
.set_target => |set_target| frame.set_target(&pools, set_target),
};
}
frame.flush(&pools);
if (frame.current_target_texture != .backbuffer) {
frame.set_target(&pools, .{
.texture = .backbuffer,
.clear_color = null,
.clear_depth = null,
.clear_stencil = null,
});
}
}
sokol.gfx.endPass();
sokol.gfx.beginPass(swapchain_pass: {
var pass = sokol.gfx.Pass{
.swapchain = frame.swapchain,
.action = .{
.stencil = .{.load_action = .CLEAR},
.depth = .{.load_action = .CLEAR},
},
};
pass.action.colors[0] = .{.load_action = .CLEAR};
break: swapchain_pass pass;
});
try frame.draw_texture(&pools, .{
.texture = .backbuffer,
.transform = .{
.origin = .{@as(f32, @floatFromInt(render_frame.width)) / 2, @as(f32, @floatFromInt(render_frame.height)) / 2},
.xbasis = .{@floatFromInt(render_frame.width), 0},
.ybasis = .{0, @floatFromInt(render_frame.height)},
},
});
frame.flush(&pools);
sokol.gfx.endPass();
sokol.gfx.commit();
ext.SDL_GL_SwapWindow(window);
render_frame.finished.set();
},
.shutdown => {
break;
},
.unload_effect => |unload| {
if (!pools.destroy_effect(unload.handle)) {
@panic("Attempt to unload a non-existent effect");
}
},
.unload_texture => |unload| {
if (!pools.destroy_texture(unload.handle)) {
@panic("Attempt to unload a non-existent texture");
}
},
}
}
}
var work_thread: std.Thread = undefined;

View File

@ -4,8 +4,6 @@ const ext = @cImport({
@cInclude("spirv-cross/spirv_cross_c.h");
});
const sokol = @import("sokol");
const std = @import("std");
pub const Error = std.mem.Allocator.Error || error {

View File

@ -1,38 +0,0 @@
const coral = @import("coral");
pub const Format = enum {
rgba8,
bgra8,
pub fn byte_size(self: Format) usize {
return switch (self) {
.rgba8, .bgra8 => 4,
};
}
};
pub const Desc = struct {
format: Format,
access: Access,
pub const Access = union (enum) {
static: StaticAccess,
render: RenderAccess,
};
pub const StaticAccess = struct {
width: u16,
data: []const coral.io.Byte,
};
pub const RenderAccess = struct {
width: u16,
height: u16,
};
};
pub const Handle = enum (u32) {
default,
backbuffer,
_,
};