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main
Cameron Murphy Reikes 1 year ago
parent 2f48c9d51a
commit 435b0d0c7b
3 changed files with 234 additions and 164 deletions
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47
main.c
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@ -6,6 +6,8 @@
#include "sokol_gfx.h" #include "sokol_gfx.h"
#include "sokol_glue.h" #include "sokol_glue.h"
#include "quad-sapp.glsl.h" #include "quad-sapp.glsl.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
static struct { static struct {
sg_pass_action pass_action; sg_pass_action pass_action;
@ -13,18 +15,43 @@ static struct {
sg_bindings bind; sg_bindings bind;
} state; } state;
void init(void) { void init(void) {
sg_setup(&(sg_desc){ sg_setup(&(sg_desc){
.context = sapp_sgcontext() .context = sapp_sgcontext()
}); });
// load the image
state.bind.fs_images[SLOT_tex] = sg_alloc_image();
int png_width, png_height, num_channels;
const int desired_channels = 4;
stbi_uc* pixels = stbi_load(
"assets/merchant.png",
&png_width, &png_height,
&num_channels, 0);
if (pixels) {
sg_init_image(state.bind.fs_images[0], &(sg_image_desc){
.width = png_width,
.height = png_height,
.pixel_format = SG_PIXELFORMAT_RGBA8,
.min_filter = SG_FILTER_LINEAR,
.mag_filter = SG_FILTER_LINEAR,
.data.subimage[0][0] = {
.ptr = pixels,
.size = (size_t)(png_width * png_height * 4),
}
});
stbi_image_free(pixels);
}
/* a vertex buffer */ /* a vertex buffer */
float vertices[] = { float vertices[] = {
// positions colors // positions texcoords
-0.5f, 0.5f, 0.5f, 1.0f, 0.0f, 0.0f, 1.0f, -0.5f, 0.5f, 0.0f, 0.0f,
0.5f, 0.5f, 0.5f, 0.0f, 1.0f, 0.0f, 1.0f, 0.5f, 0.5f, 1.0f, 0.0f,
0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f, 1.0f, 0.5f, -0.5f, 1.0f, 1.0f,
-0.5f, -0.5f, 0.5f, 1.0f, 1.0f, 0.0f, 1.0f, -0.5f, -0.5f, 0.0f, 1.0f,
}; };
state.bind.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){ state.bind.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){
.data = SG_RANGE(vertices), .data = SG_RANGE(vertices),
@ -39,6 +66,7 @@ void init(void) {
.label = "quad-indices" .label = "quad-indices"
}); });
/* a shader (use separate shader sources here */ /* a shader (use separate shader sources here */
sg_shader shd = sg_make_shader(quad_shader_desc(sg_query_backend())); sg_shader shd = sg_make_shader(quad_shader_desc(sg_query_backend()));
@ -48,8 +76,8 @@ void init(void) {
.index_type = SG_INDEXTYPE_UINT16, .index_type = SG_INDEXTYPE_UINT16,
.layout = { .layout = {
.attrs = { .attrs = {
[ATTR_vs_position].format = SG_VERTEXFORMAT_FLOAT3, [ATTR_vs_position].format = SG_VERTEXFORMAT_FLOAT2,
[ATTR_vs_color0].format = SG_VERTEXFORMAT_FLOAT4 [ATTR_vs_texcoord0].format = SG_VERTEXFORMAT_FLOAT2,
} }
}, },
.label = "quad-pipeline" .label = "quad-pipeline"
@ -92,7 +120,10 @@ sapp_desc sokol_main(int argc, char* argv[]) {
.width = 800, .width = 800,
.height = 600, .height = 600,
.gl_force_gles2 = true, .gl_force_gles2 = true,
.window_title = "Quad (sokol-app)", .window_title = "RPGPT",
.win32_console_attach = true,
.icon.sokol_default = true, .icon.sokol_default = true,
}; };
} }

334
quad-sapp.glsl.h
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@ -13,8 +13,12 @@
Vertex shader: vs Vertex shader: vs
Attribute slots: Attribute slots:
ATTR_vs_position = 0 ATTR_vs_position = 0
ATTR_vs_color0 = 1 ATTR_vs_texcoord0 = 1
Fragment shader: fs Fragment shader: fs
Image 'tex':
Type: SG_IMAGETYPE_2D
Component Type: SG_SAMPLERTYPE_FLOAT
Bind slot: SLOT_tex = 0
Shader descriptor structs: Shader descriptor structs:
@ -27,13 +31,14 @@
.layout = { .layout = {
.attrs = { .attrs = {
[ATTR_vs_position] = { ... }, [ATTR_vs_position] = { ... },
[ATTR_vs_color0] = { ... }, [ATTR_vs_texcoord0] = { ... },
}, },
}, },
...}); ...});
Image bind slots, use as index in sg_bindings.vs_images[] or .fs_images[] Image bind slots, use as index in sg_bindings.vs_images[] or .fs_images[]
SLOT_tex = 0;
*/ */
#include <stdint.h> #include <stdint.h>
@ -48,71 +53,77 @@
#endif #endif
#endif #endif
#define ATTR_vs_position (0) #define ATTR_vs_position (0)
#define ATTR_vs_color0 (1) #define ATTR_vs_texcoord0 (1)
#define SLOT_tex (0)
/* /*
#version 330 #version 330
layout(location = 0) in vec4 position; layout(location = 0) in vec2 position;
out vec4 color; out vec2 uv;
layout(location = 1) in vec4 color0; layout(location = 1) in vec2 texcoord0;
void main() void main()
{ {
gl_Position = position; gl_Position = vec4(position, 0.0, 1.0);
color = color0; uv = texcoord0;
} }
*/ */
static const char vs_source_glsl330[173] = { static const char vs_source_glsl330[189] = {
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}; };
/* /*
#version 330 #version 330
uniform sampler2D tex;
layout(location = 0) out vec4 frag_color; layout(location = 0) out vec4 frag_color;
in vec4 color; in vec2 uv;
void main() void main()
{ {
frag_color = color; frag_color = texture(tex, uv);
} }
*/ */
static const char fs_source_glsl330[114] = { static const char fs_source_glsl330[146] = {
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}; };
/* /*
static float4 gl_Position; static float4 gl_Position;
static float4 position; static float2 position;
static float4 color; static float2 uv;
static float4 color0; static float2 texcoord0;
struct SPIRV_Cross_Input struct SPIRV_Cross_Input
{ {
float4 position : TEXCOORD0; float2 position : TEXCOORD0;
float4 color0 : TEXCOORD1; float2 texcoord0 : TEXCOORD1;
}; };
struct SPIRV_Cross_Output struct SPIRV_Cross_Output
{ {
float4 color : TEXCOORD0; float2 uv : TEXCOORD0;
float4 gl_Position : SV_Position; float4 gl_Position : SV_Position;
}; };
@ -120,38 +131,38 @@ static const char fs_source_glsl330[114] = {
void vert_main() void vert_main()
{ {
#line 11 "quad.glsl" #line 11 "quad.glsl"
gl_Position = position; gl_Position = float4(position, 0.0f, 1.0f);
#line 12 "quad.glsl" #line 12 "quad.glsl"
color = color0; uv = texcoord0;
} }
SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input) SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
{ {
position = stage_input.position; position = stage_input.position;
color0 = stage_input.color0; texcoord0 = stage_input.texcoord0;
vert_main(); vert_main();
SPIRV_Cross_Output stage_output; SPIRV_Cross_Output stage_output;
stage_output.gl_Position = gl_Position; stage_output.gl_Position = gl_Position;
stage_output.color = color; stage_output.uv = uv;
return stage_output; return stage_output;
} }
*/ */
static const char vs_source_hlsl5[708] = { static const char vs_source_hlsl5[728] = {
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@ -160,36 +171,40 @@ static const char vs_source_hlsl5[708] = {
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}; };
/* /*
Texture2D<float4> tex : register(t0);
SamplerState _tex_sampler : register(s0);
static float4 frag_color; static float4 frag_color;
static float4 color; static float2 uv;
struct SPIRV_Cross_Input struct SPIRV_Cross_Input
{ {
float4 color : TEXCOORD0; float2 uv : TEXCOORD0;
}; };
struct SPIRV_Cross_Output struct SPIRV_Cross_Output
@ -197,53 +212,59 @@ static const char vs_source_hlsl5[708] = {
float4 frag_color : SV_Target0; float4 frag_color : SV_Target0;
}; };
#line 10 "quad.glsl" #line 13 "quad.glsl"
void frag_main() void frag_main()
{ {
#line 10 "quad.glsl" #line 13 "quad.glsl"
frag_color = color; frag_color = tex.Sample(_tex_sampler, uv);
} }
SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input) SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
{ {
color = stage_input.color; uv = stage_input.uv;
frag_main(); frag_main();
SPIRV_Cross_Output stage_output; SPIRV_Cross_Output stage_output;
stage_output.frag_color = frag_color; stage_output.frag_color = frag_color;
return stage_output; return stage_output;
} }
*/ */
static const char fs_source_hlsl5[477] = { static const char fs_source_hlsl5[569] = {
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}; };
/* /*
#include <metal_stdlib> #include <metal_stdlib>
@ -253,14 +274,14 @@ static const char fs_source_hlsl5[477] = {
struct main0_out struct main0_out
{ {
float4 color [[user(locn0)]]; float2 uv [[user(locn0)]];
float4 gl_Position [[position]]; float4 gl_Position [[position]];
}; };
struct main0_in struct main0_in
{ {
float4 position [[attribute(0)]]; float2 position [[attribute(0)]];
float4 color0 [[attribute(1)]]; float2 texcoord0 [[attribute(1)]];
}; };
#line 11 "quad.glsl" #line 11 "quad.glsl"
@ -268,29 +289,29 @@ static const char fs_source_hlsl5[477] = {
{ {
main0_out out = {}; main0_out out = {};
#line 11 "quad.glsl" #line 11 "quad.glsl"
out.gl_Position = in.position; out.gl_Position = float4(in.position, 0.0, 1.0);
#line 12 "quad.glsl" #line 12 "quad.glsl"
out.color = in.color0; out.uv = in.texcoord0;
return out; return out;
} }
*/ */
static const char vs_source_metal_macos[482] = { static const char vs_source_metal_macos[500] = {
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@ -301,12 +322,13 @@ static const char vs_source_metal_macos[482] = {
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}; };
/* /*
#include <metal_stdlib> #include <metal_stdlib>
@ -321,20 +343,20 @@ static const char vs_source_metal_macos[482] = {
struct main0_in struct main0_in
{ {
float4 color [[user(locn0)]]; float2 uv [[user(locn0)]];
}; };
#line 10 "quad.glsl" #line 13 "quad.glsl"
fragment main0_out main0(main0_in in [[stage_in]]) fragment main0_out main0(main0_in in [[stage_in]], texture2d<float> tex [[texture(0)]], sampler texSmplr [[sampler(0)]])
{ {
main0_out out = {}; main0_out out = {};
#line 10 "quad.glsl" #line 13 "quad.glsl"
out.frag_color = in.color; out.frag_color = tex.sample(texSmplr, in.uv);
return out; return out;
} }
*/ */
static const char fs_source_metal_macos[357] = { static const char fs_source_metal_macos[443] = {
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0x6d,0x70,0x6c,0x65,0x28,0x74,0x65,0x78,0x53,0x6d,0x70,0x6c,0x72,0x2c,0x20,0x69,
0x6e,0x2e,0x75,0x76,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x72,0x65,0x74,0x75,0x72,
0x6e,0x20,0x6f,0x75,0x74,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
}; };
#if !defined(SOKOL_GFX_INCLUDED) #if !defined(SOKOL_GFX_INCLUDED)
#error "Please include sokol_gfx.h before quad-sapp.glsl.h" #error "Please include sokol_gfx.h before quad-sapp.glsl.h"
@ -369,11 +396,14 @@ static inline const sg_shader_desc* quad_shader_desc(sg_backend backend) {
if (!valid) { if (!valid) {
valid = true; valid = true;
desc.attrs[0].name = "position"; desc.attrs[0].name = "position";
desc.attrs[1].name = "color0"; desc.attrs[1].name = "texcoord0";
desc.vs.source = vs_source_glsl330; desc.vs.source = vs_source_glsl330;
desc.vs.entry = "main"; desc.vs.entry = "main";
desc.fs.source = fs_source_glsl330; desc.fs.source = fs_source_glsl330;
desc.fs.entry = "main"; desc.fs.entry = "main";
desc.fs.images[0].name = "tex";
desc.fs.images[0].image_type = SG_IMAGETYPE_2D;
desc.fs.images[0].sampler_type = SG_SAMPLERTYPE_FLOAT;
desc.label = "quad_shader"; desc.label = "quad_shader";
} }
return &desc; return &desc;
@ -393,6 +423,9 @@ static inline const sg_shader_desc* quad_shader_desc(sg_backend backend) {
desc.fs.source = fs_source_hlsl5; desc.fs.source = fs_source_hlsl5;
desc.fs.d3d11_target = "ps_5_0"; desc.fs.d3d11_target = "ps_5_0";
desc.fs.entry = "main"; desc.fs.entry = "main";
desc.fs.images[0].name = "tex";
desc.fs.images[0].image_type = SG_IMAGETYPE_2D;
desc.fs.images[0].sampler_type = SG_SAMPLERTYPE_FLOAT;
desc.label = "quad_shader"; desc.label = "quad_shader";
} }
return &desc; return &desc;
@ -406,6 +439,9 @@ static inline const sg_shader_desc* quad_shader_desc(sg_backend backend) {
desc.vs.entry = "main0"; desc.vs.entry = "main0";
desc.fs.source = fs_source_metal_macos; desc.fs.source = fs_source_metal_macos;
desc.fs.entry = "main0"; desc.fs.entry = "main0";
desc.fs.images[0].name = "tex";
desc.fs.images[0].image_type = SG_IMAGETYPE_2D;
desc.fs.images[0].sampler_type = SG_SAMPLERTYPE_FLOAT;
desc.label = "quad_shader"; desc.label = "quad_shader";
} }
return &desc; return &desc;

17
quad.glsl
Unescape Escape View File

@ -1,22 +1,25 @@
/* quad vertex shader */ /* quad vertex shader */
@vs vs @vs vs
in vec4 position; in vec2 position;
in vec4 color0; in vec2 texcoord0;
out vec4 color; out vec2 uv;
void main() { void main() {
gl_Position = position; gl_Position = vec4(position, 0.0, 1.0);
color = color0; uv = texcoord0;
} }
@end @end
/* quad fragment shader */ /* quad fragment shader */
@fs fs @fs fs
in vec4 color; uniform sampler2D tex;
in vec2 uv;
out vec4 frag_color; out vec4 frag_color;
void main() { void main() {
frag_color = color; frag_color = texture(tex, uv);
} }
@end @end

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