ci,examples: fix compilation of 03_march_tracing_glsl/rt_glsl.v

pull/8805/head
Delyan Angelov 2021-02-17 11:07:31 +02:00
parent 023f6829a1
commit 217e8c9146
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1 changed files with 145 additions and 175 deletions

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@ -30,22 +30,20 @@
* TODO:
* - frame counter
**********************************************************************/
import gg
import gg.m4
import gx
//import math
// import math
import sokol.sapp
import sokol.gfx
import sokol.sgl
import time
// GLSL Include and functions
#flag -I @VROOT/.
#include "rt_glsl.h" #Please use sokol-shdc to generate the necessary rt_glsl.h file from rt_glsl.glsl (see the instructions at the top of this file)
fn C.rt_shader_desc() &C.sg_shader_desc
const (
@ -56,44 +54,38 @@ const (
struct App {
mut:
gg &gg.Context
texture C.sg_image
init_flag bool
frame_count int
mouse_x int = -1
mouse_y int = -1
gg &gg.Context
texture C.sg_image
init_flag bool
frame_count int
mouse_x int = -1
mouse_y int = -1
// glsl
cube_pip_glsl C.sg_pipeline
cube_bind C.sg_bindings
// time
ticks i64
ticks i64
}
/******************************************************************************
*
* Texture functions
*
******************************************************************************/
fn create_texture(w int, h int, buf byteptr) C.sg_image{
// Texture functions
fn create_texture(w int, h int, buf byteptr) C.sg_image {
sz := w * h * 4
mut img_desc := C.sg_image_desc{
width: w
height: h
num_mipmaps: 0
min_filter: .linear
mag_filter: .linear
//usage: .dynamic
wrap_u: .clamp_to_edge
wrap_v: .clamp_to_edge
label: &byte(0)
width: w
height: h
num_mipmaps: 0
min_filter: .linear
mag_filter: .linear
// usage: .dynamic
wrap_u: .clamp_to_edge
wrap_v: .clamp_to_edge
label: &byte(0)
d3d11_texture: 0
}
// comment if .dynamic is enabled
img_desc.content.subimage[0][0] = C.sg_subimage_content{
ptr: buf
ptr: buf
size: sz
}
@ -101,28 +93,25 @@ fn create_texture(w int, h int, buf byteptr) C.sg_image{
return sg_img
}
fn destroy_texture(sg_img C.sg_image){
fn destroy_texture(sg_img C.sg_image) {
C.sg_destroy_image(sg_img)
}
// Use only if usage: .dynamic is enabled
fn update_text_texture(sg_img C.sg_image, w int, h int, buf byteptr){
fn update_text_texture(sg_img C.sg_image, w int, h int, buf byteptr) {
sz := w * h * 4
mut tmp_sbc := C.sg_image_content{}
tmp_sbc.subimage[0][0] = C.sg_subimage_content {
tmp_sbc.subimage[0][0] = C.sg_subimage_content{
ptr: buf
size: sz
}
C.sg_update_image(sg_img, &tmp_sbc)
}
/******************************************************************************
*
* Draw functions
*
******************************************************************************/
// Draw functions
/*
Cube vertex buffer with packed vertex formats for color and texture coords.
Cube vertex buffer with packed vertex formats for color and texture coords.
Note that a vertex format which must be portable across all
backends must only use the normalized integer formats
(BYTE4N, UBYTE4N, SHORT2N, SHORT4N), which can be converted
@ -133,165 +122,158 @@ fn update_text_texture(sg_img C.sg_image, w int, h int, buf byteptr){
*/
struct Vertex_t {
x f32
y f32
z f32
color u32
//u u16 // for compatibility with D3D11
//v u16 // for compatibility with D3D11
u f32
v f32
x f32
y f32
z f32
color u32
u f32
v f32
// u u16 // for compatibility with D3D11
// v u16 // for compatibility with D3D11
}
fn init_cube_glsl(mut app App) {
/* cube vertex buffer */
//d := u16(32767) // for compatibility with D3D11, 32767 stand for 1
// cube vertex buffer
// d := u16(32767) // for compatibility with D3D11, 32767 stand for 1
d := f32(1.0)
c := u32(0xFFFFFF_FF) // color RGBA8
vertices := [
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{ 1.0, -1.0, -1.0, c, d, 0},
Vertex_t{ 1.0, 1.0, -1.0, c, d, d},
Vertex_t{-1.0, 1.0, -1.0, c, 0, d},
Vertex_t{-1.0, -1.0, 1.0, c, 0, 0},
Vertex_t{ 1.0, -1.0, 1.0, c, d, 0},
Vertex_t{ 1.0, 1.0, 1.0, c, d, d},
Vertex_t{-1.0, 1.0, 1.0, c, 0, d},
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, 1.0, -1.0, c, d, 0},
Vertex_t{-1.0, 1.0, 1.0, c, d, d},
Vertex_t{-1.0, -1.0, 1.0, c, 0, d},
Vertex_t{ 1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{ 1.0, 1.0, -1.0, c, d, 0},
Vertex_t{ 1.0, 1.0, 1.0, c, d, d},
Vertex_t{ 1.0, -1.0, 1.0, c, 0, d},
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, -1.0, 1.0, c, d, 0},
Vertex_t{ 1.0, -1.0, 1.0, c, d, d},
Vertex_t{ 1.0, -1.0, -1.0, c, 0, d},
Vertex_t{-1.0, 1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, 1.0, 1.0, c, d, 0},
Vertex_t{ 1.0, 1.0, 1.0, c, d, d},
Vertex_t{ 1.0, 1.0, -1.0, c, 0, d},
vertices := [
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{1.0, -1.0, -1.0, c, d, 0},
Vertex_t{1.0, 1.0, -1.0, c, d, d},
Vertex_t{-1.0, 1.0, -1.0, c, 0, d},
Vertex_t{-1.0, -1.0, 1.0, c, 0, 0},
Vertex_t{1.0, -1.0, 1.0, c, d, 0},
Vertex_t{1.0, 1.0, 1.0, c, d, d},
Vertex_t{-1.0, 1.0, 1.0, c, 0, d},
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, 1.0, -1.0, c, d, 0},
Vertex_t{-1.0, 1.0, 1.0, c, d, d},
Vertex_t{-1.0, -1.0, 1.0, c, 0, d},
Vertex_t{1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{1.0, 1.0, -1.0, c, d, 0},
Vertex_t{1.0, 1.0, 1.0, c, d, d},
Vertex_t{1.0, -1.0, 1.0, c, 0, d},
Vertex_t{-1.0, -1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, -1.0, 1.0, c, d, 0},
Vertex_t{1.0, -1.0, 1.0, c, d, d},
Vertex_t{1.0, -1.0, -1.0, c, 0, d},
Vertex_t{-1.0, 1.0, -1.0, c, 0, 0},
Vertex_t{-1.0, 1.0, 1.0, c, d, 0},
Vertex_t{1.0, 1.0, 1.0, c, d, d},
Vertex_t{1.0, 1.0, -1.0, c, 0, d},
]
mut vert_buffer_desc := C.sg_buffer_desc{}
unsafe {C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc))}
vert_buffer_desc.size = vertices.len * int(sizeof(Vertex_t))
unsafe { C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc)) }
vert_buffer_desc.size = vertices.len * int(sizeof(Vertex_t))
vert_buffer_desc.content = byteptr(vertices.data)
vert_buffer_desc.@type = .vertexbuffer
vert_buffer_desc.label = "cube-vertices".str
vert_buffer_desc.@type = .vertexbuffer
vert_buffer_desc.label = 'cube-vertices'.str
vbuf := gfx.make_buffer(&vert_buffer_desc)
/* create an index buffer for the cube */
// create an index buffer for the cube
indices := [
u16(0), 1, 2, 0, 2, 3,
6, 5, 4, 7, 6, 4,
8, 9, 10, 8, 10, 11,
14, 13, 12, 15, 14, 12,
16, 17, 18, 16, 18, 19,
22, 21, 20, 23, 22, 20
0, 1, 2, 0, 2, 3,
6, 5, 4, 7, 6, 4,
8, 9, 10, 8, 10, 11,
14, 13, 12, 15, 14, 12,
16, 17, 18, 16, 18, 19,
22, 21, 20, 23, 22, 20,
]
mut index_buffer_desc := C.sg_buffer_desc{}
unsafe {C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc))}
index_buffer_desc.size = indices.len * int(sizeof(u16))
unsafe { C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc)) }
index_buffer_desc.size = indices.len * int(sizeof(int))
index_buffer_desc.content = byteptr(indices.data)
index_buffer_desc.@type = .indexbuffer
index_buffer_desc.label = "cube-indices".str
index_buffer_desc.@type = .indexbuffer
index_buffer_desc.label = 'cube-indices'.str
ibuf := gfx.make_buffer(&index_buffer_desc)
/* create shader */
// create shader
shader := gfx.make_shader(C.rt_shader_desc())
mut pipdesc := C.sg_pipeline_desc{}
unsafe {C.memset(&pipdesc, 0, sizeof(pipdesc))}
unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_t))
// the constants [C.ATTR_vs_pos, C.ATTR_vs_color0, C.ATTR_vs_texcoord0] are generated by sokol-shdc
pipdesc.layout.attrs[C.ATTR_vs_pos ].format = .float3 // x,y,z as f32
pipdesc.layout.attrs[C.ATTR_vs_color0 ].format = .ubyte4n // color as u32
pipdesc.layout.attrs[C.ATTR_vs_texcoord0].format = .float2 // u,v as f32
//pipdesc.layout.attrs[C.ATTR_vs_texcoord0].format = .short2n // u,v as u16
pipdesc.layout.attrs[C.ATTR_vs_pos].format = .float3 // x,y,z as f32
pipdesc.layout.attrs[C.ATTR_vs_color0].format = .ubyte4n // color as u32
pipdesc.layout.attrs[C.ATTR_vs_texcoord0].format = .float2 // u,v as f32
// pipdesc.layout.attrs[C.ATTR_vs_texcoord0].format = .short2n // u,v as u16
pipdesc.shader = shader
pipdesc.index_type = .uint16
pipdesc.index_type = .uint32
pipdesc.depth_stencil = C.sg_depth_stencil_state{
pipdesc.depth_stencil = C.sg_depth_stencil_state{
depth_write_enabled: true
depth_compare_func : gfx.CompareFunc(C.SG_COMPAREFUNC_LESS_EQUAL)
depth_compare_func: gfx.CompareFunc(C.SG_COMPAREFUNC_LESS_EQUAL)
}
pipdesc.rasterizer = C.sg_rasterizer_state {
pipdesc.rasterizer = C.sg_rasterizer_state{
cull_mode: .back
}
pipdesc.label = "glsl_shader pipeline".str
pipdesc.label = 'glsl_shader pipeline'.str
app.cube_bind.vertex_buffers[0] = vbuf
app.cube_bind.index_buffer = ibuf
app.cube_bind.index_buffer = ibuf
app.cube_bind.fs_images[C.SLOT_tex] = app.texture
app.cube_pip_glsl = gfx.make_pipeline(&pipdesc)
println("GLSL init DONE!")
println('GLSL init DONE!')
}
fn calc_tr_matrices(w f32, h f32, rx f32, ry f32, in_scale f32) m4.Mat4{
proj := m4.perspective(60, w/h, 0.01, 10.0)
view := m4.look_at(m4.Vec4{e:[f32(0.0),0.0,6,0]!}, m4.Vec4{e:[f32(0),0,0,0]!}, m4.Vec4{e:[f32(0),1.0,0,0]!})
fn calc_tr_matrices(w f32, h f32, rx f32, ry f32, in_scale f32) m4.Mat4 {
proj := m4.perspective(60, w / h, 0.01, 10.0)
view := m4.look_at(m4.Vec4{ e: [f32(0.0), 0.0, 6, 0]! }, m4.Vec4{ e: [f32(0), 0, 0, 0]! }, m4.Vec4{ e: [f32(0), 1.0, 0, 0]! })
view_proj := view * proj
rxm := m4.rotate(m4.rad(rx), m4.Vec4{e:[f32(1),0,0,0]!})
rym := m4.rotate(m4.rad(ry), m4.Vec4{e:[f32(0),1,0,0]!})
rxm := m4.rotate(m4.rad(rx), m4.Vec4{ e: [f32(1), 0, 0, 0]! })
rym := m4.rotate(m4.rad(ry), m4.Vec4{ e: [f32(0), 1, 0, 0]! })
model := rym * rxm
scale_m := m4.scale(m4.Vec4{e:[in_scale, in_scale, in_scale, 1]!})
model := rym * rxm
scale_m := m4.scale(m4.Vec4{ e: [in_scale, in_scale, in_scale, 1]! })
res := (scale_m * model)* view_proj
res := (scale_m * model) * view_proj
return res
}
fn draw_cube_glsl(app App){
fn draw_cube_glsl(app App) {
if app.init_flag == false {
return
}
ws := gg.window_size()
ratio := f32(ws.width) / ws.height
dw := f32(ws.width / 2)
dw := f32(ws.width / 2)
dh := f32(ws.height / 2)
// use the following commented lines to rotate the 3d glsl cube
// rot := [f32(app.mouse_y), f32(app.mouse_x)]
// calc_tr_matrices(dw, dh, rot[0], rot[1] ,2.3)
tr_matrix := calc_tr_matrices(dw, dh, 0, 0 ,2.3)
tr_matrix := calc_tr_matrices(dw, dh, 0, 0, 2.3)
gfx.apply_viewport(0, 0, ws.width, ws.height, true)
// apply the pipline and bindings
gfx.apply_pipeline(app.cube_pip_glsl)
gfx.apply_bindings(app.cube_bind)
//***************
// Uniforms
//***************
//
// passing the view matrix as uniform
// res is a 4x4 matrix of f32 thus: 4*16 byte of size
gfx.apply_uniforms(C.SG_SHADERSTAGE_VS, C.SLOT_vs_params, &tr_matrix, 4*16 )
gfx.apply_uniforms(C.SG_SHADERSTAGE_VS, C.SLOT_vs_params, &tr_matrix, 4 * 16)
// fragment shader uniforms
time_ticks := f32(time.ticks() - app.ticks) / 1000
mut tmp_fs_params := [
f32(ws.width), ws.height * ratio, // x,y resolution to pass to FS
app.mouse_x, // mouse x
ws.height - app.mouse_y*2, // mouse y scaled
time_ticks, // time as f32
app.frame_count, // frame count
0,0 // padding bytes , see "fs_params" struct paddings in rt_glsl.h
f32(ws.width),
ws.height * ratio, /* x,y resolution to pass to FS */
app.mouse_x, /* mouse x */
ws.height - app.mouse_y * 2, /* mouse y scaled */
time_ticks, /* time as f32 */
app.frame_count, /* frame count */
0,
0 /* padding bytes , see "fs_params" struct paddings in rt_glsl.h */,
]!
gfx.apply_uniforms(C.SG_SHADERSTAGE_FS, C.SLOT_fs_params, &tmp_fs_params, int(sizeof(tmp_fs_params)))
@ -321,11 +303,7 @@ fn frame(mut app App) {
app.frame_count++
}
/******************************************************************************
*
* Init / Cleanup
*
******************************************************************************/
// Init / Cleanup
fn my_init(mut app App) {
// set max vertices,
// for a large number of the same type of object it is better use the instances!!
@ -344,27 +322,27 @@ fn my_init(mut app App) {
mut i := 0
for i < sz {
unsafe {
y := (i >> 0x8) >> 5 // 8 cell
x := (i & 0xFF) >> 5 // 8 cell
y := (i >> 0x8) >> 5 // 8 cell
x := (i & 0xFF) >> 5 // 8 cell
// upper left corner
if x==0 && y==0 {
tmp_txt[i ] = byte(0xFF)
tmp_txt[i+1] = byte(0)
tmp_txt[i+2] = byte(0)
tmp_txt[i+3] = byte(0xFF)
if x == 0 && y == 0 {
tmp_txt[i] = byte(0xFF)
tmp_txt[i + 1] = byte(0)
tmp_txt[i + 2] = byte(0)
tmp_txt[i + 3] = byte(0xFF)
}
// low right corner
else if x==7 && y==7 {
tmp_txt[i ] = byte(0)
tmp_txt[i+1] = byte(0xFF)
tmp_txt[i+2] = byte(0)
tmp_txt[i+3] = byte(0xFF)
else if x == 7 && y == 7 {
tmp_txt[i] = byte(0)
tmp_txt[i + 1] = byte(0xFF)
tmp_txt[i + 2] = byte(0)
tmp_txt[i + 3] = byte(0xFF)
} else {
col := if ((x+y) & 1) == 1 {0xFF} else {128}
tmp_txt[i ] = byte(col) // red
tmp_txt[i+1] = byte(col) // green
tmp_txt[i+2] = byte(col) // blue
tmp_txt[i+3] = byte(0xFF) // alpha
col := if ((x + y) & 1) == 1 { 0xFF } else { 128 }
tmp_txt[i] = byte(col) // red
tmp_txt[i + 1] = byte(col) // green
tmp_txt[i + 2] = byte(col) // blue
tmp_txt[i + 3] = byte(0xFF) // alpha
}
i += 4
}
@ -382,12 +360,8 @@ fn cleanup(mut app App) {
gfx.shutdown()
}
/******************************************************************************
*
* event
*
******************************************************************************/
fn my_event_manager(mut ev sapp.Event, mut app App) {
// events handling:
fn my_event_manager(mut ev gg.Event, mut app App) {
if ev.typ == .mouse_move {
app.mouse_x = int(ev.mouse_x)
app.mouse_y = int(ev.mouse_y)
@ -401,31 +375,27 @@ fn my_event_manager(mut ev sapp.Event, mut app App) {
}
}
/******************************************************************************
*
* Main
*
******************************************************************************/
// [console] is needed for easier diagnostics on windows
[console]
fn main(){
fn main() {
// App init
mut app := &App{
gg: 0
}
app.gg = gg.new_context({
width: win_width
height: win_height
use_ortho: true // This is needed for 2D drawing
app.gg = gg.new_context(
width: win_width
height: win_height
use_ortho: true // This is needed for 2D drawing
create_window: true
window_title: '3D Ray Marching Cube'
user_data: app
bg_color: bg_color
frame_fn: frame
init_fn: my_init
cleanup_fn: cleanup
event_fn: my_event_manager
})
window_title: '3D Ray Marching Cube'
user_data: app
bg_color: bg_color
frame_fn: frame
init_fn: my_init
cleanup_fn: cleanup
event_fn: my_event_manager
)
app.ticks = time.ticks()
app.gg.run()