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FlipY texture flag, display world texture atlas

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This commit is contained in:
Edgaru089 2022-02-16 00:29:34 +08:00
parent 326253a73b
commit 565e0390f3
6 changed files with 86 additions and 17 deletions
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15
internal/game/imgui.go
View File

@ -55,17 +55,14 @@ func (g *Game) imgui() {
if io.ShowDebugInfo {
imgui.SetNextWindowPosV(imgui.Vec2{}, imgui.ConditionAlways, imgui.Vec2{})
imgui.SetNextWindowSize(imgui.Vec2{X: float32(io.DisplaySize[0]), Y: float32(io.DisplaySize[1])})
if igwrap.Begin("F3", nil, imgui.WindowFlagsAlwaysAutoResize|imgui.WindowFlagsNoBackground|imgui.WindowFlagsNoNavFocus|imgui.WindowFlagsNoDecoration|imgui.WindowFlagsNoInputs|imgui.WindowFlagsNoSavedSettings|imgui.WindowFlagsNoFocusOnAppearing) {
bg := itype.Vec4f{0, 0, 0, 0.5}
pad := igwrap.Vec2f(imgui.CurrentStyle().ItemSpacing())
igwrap.TextBackground(bg, pad, "Gl01 compiled by %s/%s [%s/%s] (120AVG) %.1f FPS (%.3f frame)", runtime.Compiler, runtime.Version(), runtime.GOOS, runtime.GOARCH, imgui.CurrentIO().Framerate(), 1000/imgui.CurrentIO().Framerate())
igwrap.TextBackground(bg, pad, "GLFW %s, Dear ImGUI %s", glfw.GetVersionString(), imgui.Version())
igwrap.TextBackground(bg, pad, "CgoCalls:%d (%d lastframe), Goroutines:%d", runtime.NumCgoCall(), runtime.NumCgoCall()-g.gui.lastframeCgoCalls, runtime.NumGoroutine())
imgui.Dummy(imgui.Vec2{X: 8, Y: 8})
if igwrap.Begin("F3", nil, igwrap.WindowFlagsOverlay) {
igwrap.TextBackground("Gl01 compiled by %s/%s [%s/%s] (120AVG) %.1f FPS (%.3f frame)", runtime.Compiler, runtime.Version(), runtime.GOOS, runtime.GOARCH, imgui.CurrentIO().Framerate(), 1000/imgui.CurrentIO().Framerate())
igwrap.TextBackground("GLFW %s, Dear ImGUI %s", glfw.GetVersionString(), imgui.Version())
igwrap.TextBackground("CgoCalls:%d (%d lastframe), Goroutines:%d", runtime.NumCgoCall(), runtime.NumCgoCall()-g.gui.lastframeCgoCalls, runtime.NumGoroutine())
igwrap.TextBlank()
pos := g.player.Position()
igwrap.TextBackground(bg, pad, "Player: (%.3f, %.5f, %.3f) (Y%.2f, Z%.2f)", pos[0], pos[1], pos[2], g.rotY.Degrees(), g.rotZ)
igwrap.TextBackground("Player: (%.3f, %.5f, %.3f) (Y%.2f, Z%.2f)", pos[0], pos[1], pos[2], g.rotY.Degrees(), g.rotZ)
imgui.End()
}
}

1
internal/igwrap/backend/shader.frag
View File

@ -8,6 +8,7 @@
#define FLAG_LINEAR (1<<4)
#define FLAG_IMGUI_FONT (1<<5)
#define FLAG_FLIP_Y (1<<6)
uniform sampler2D tex;
uniform int flags;

14
internal/igwrap/backend/shader.vert
View File

@ -1,6 +1,17 @@
#version 330
#define FLAG_RED (1<<0)
#define FLAG_GREEN (1<<1)
#define FLAG_BLUE (1<<2)
#define FLAG_ALPHA (1<<3)
#define FLAG_COLORS (FLAG_RED | FLAG_GREEN | FLAG_BLUE | FLAG_ALPHA)
#define FLAG_LINEAR (1<<4)
#define FLAG_IMGUI_FONT (1<<5)
#define FLAG_FLIP_Y (1<<6)
uniform mat4 projection;
uniform int flags;
in vec2 pos;
in vec2 uv;
@ -13,5 +24,8 @@ void main() {
fragUV = uv;
fragColor = color;
gl_Position = projection * vec4(pos.xy, 0, 1);
if ((flags & FLAG_FLIP_Y) != 0)
fragUV.y = 1 - fragUV.y;
}

14
internal/igwrap/imagewrap.go
View File

@ -38,6 +38,7 @@ func ImageV(tex uint32, size itype.Vec2f, texRange itype.Rectf, texColor itype.V
)
}
// Per-texture flags. This is passed to the shader as-is and handled only there.
type TextureFlag int
const (
@ -48,6 +49,7 @@ const (
TextureFlag_Linear // Linear source data, requires gamma correction.
TextureFlag_ImGUIFont // This is a font texture from ImGUI, with a single red channel.
TextureFlag_FlipY // The render should flip the Y axis of the texture. By default ImageXXX()s render textures with (0,0) at the bottom left, and this is for in case you want to flip them.
TextureFlag_RGB = TextureFlag_Red | TextureFlag_Green | TextureFlag_Blue
TextureFlag_RGBA = TextureFlag_Red | TextureFlag_Green | TextureFlag_Blue | TextureFlag_Alpha
@ -70,6 +72,18 @@ func SetTextureFlag(tex uint32, flags ...TextureFlag) {
texflags[tex] = f
}
// AddTextureFlag adds the given flags to the texture.
func AddTextureFlag(tex uint32, flags ...TextureFlag) {
var f TextureFlag
for _, f0 := range flags {
f |= f0
}
texflagslock.Lock()
defer texflagslock.Unlock()
texflags[tex] |= f
}
// TextureFlag returns the flags of a given texture.
func GetTextureFlag(tex uint32) TextureFlag {
texflagslock.RLock()

23
internal/igwrap/wrap.go
View File

@ -7,6 +7,10 @@ import (
"github.com/inkyblackness/imgui-go/v4"
)
const (
WindowFlagsOverlay imgui.WindowFlags = imgui.WindowFlagsAlwaysAutoResize | imgui.WindowFlagsNoBackground | imgui.WindowFlagsNoNavFocus | imgui.WindowFlagsNoNavInputs | imgui.WindowFlagsNoDecoration | imgui.WindowFlagsNoBringToFrontOnFocus | imgui.WindowFlagsNoSavedSettings | imgui.WindowFlagsNoFocusOnAppearing
)
// MenuItem wraps imgui.MenuItemV to create a
// easy-to-use and intuitive interface.
func MenuItem(name, shortcut string, selected *bool, enabled bool) {
@ -21,11 +25,18 @@ func Text(format string, a ...interface{}) {
imgui.Text(fmt.Sprintf(format, a...))
}
// TextBackground wraps imgui.Text to create a
// shortcut for fmt.Sprintf.
// TextBackground wraps imgui.Text to create a shortcut for fmt.Sprintf.
//
// It also fills the background of the text with half-transparant black, and takes care of the padding.
func TextBackground(format string, a ...interface{}) {
pad := Vec2f(imgui.CurrentStyle().ItemSpacing())
TextBackgroundV(itype.Vec4f{0, 0, 0, 0.5}, pad, format, a...)
}
// TextBackgroundV wraps imgui.Text to create a shortcut for fmt.Sprintf.
//
// It also fills the background of the text with the given color.
func TextBackground(color itype.Vec4f, padding itype.Vec2f, format string, a ...interface{}) {
func TextBackgroundV(color itype.Vec4f, padding itype.Vec2f, format string, a ...interface{}) {
text := fmt.Sprintf(format, a...)
orig := imgui.CursorScreenPos()
size := imgui.CalcTextSize(text, false, 0)
@ -35,6 +46,12 @@ func TextBackground(color itype.Vec4f, padding itype.Vec2f, format string, a ...
imgui.Text(text)
}
// TextBlank blanks a line with a nice-looking height (half the font height plus paddings).
func TextBlank() {
fontSize := imgui.FontSize()
imgui.Dummy(imgui.Vec2{X: fontSize / 2, Y: fontSize / 2})
}
// Begin wraps imgui.BeginV to create a
// easy-to-use and intuitive interface.
//

28
internal/render/render_world.go
View File

@ -2,6 +2,7 @@ package render
import (
"errors"
"math"
"math/rand"
"time"
"unsafe"
@ -132,6 +133,7 @@ func (r *WorldRenderer) Init(w *world.World) (err error) {
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAX_ANISOTROPY, maxaf)
r.gbuffer.shader.SetUniformTexture("tex", r.texture)
r.water.shader.SetUniformTexture("tex", r.texture)
igwrap.SetTextureFlag(r.texture.Handle(), igwrap.TextureFlag_RGBA, igwrap.TextureFlag_FlipY)
r.depthmap.shader.SetUniformMat4("model", mgl32.Ident4())
r.gbuffer.shader.SetUniformMat4("model", mgl32.Ident4())
@ -299,6 +301,7 @@ var (
alpha = float32(0.55)
gamma = float32(2.2)
exposure = float32(1)
atlasScale = float32(1)
)
func (r *WorldRenderer) Render(world *world.World, view *View) {
@ -445,7 +448,7 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
// Show G-buffers?
if io.ShowDebugInfo {
imgui.SetNextWindowPosV(imgui.Vec2{X: float32(r.lastDisplaySize[0]), Y: 0}, imgui.ConditionAlways, imgui.Vec2{X: 1, Y: 0})
if igwrap.Begin("Renderer Textures/Outputs", nil, imgui.WindowFlagsAlwaysAutoResize|imgui.WindowFlagsNoBackground|imgui.WindowFlagsNoNavFocus|imgui.WindowFlagsNoDecoration|imgui.WindowFlagsNoInputs|imgui.WindowFlagsNoSavedSettings|imgui.WindowFlagsNoFocusOnAppearing) {
if igwrap.Begin("Renderer Textures/Outputs", nil, igwrap.WindowFlagsOverlay) {
imgui.PushStyleVarVec2(imgui.StyleVarItemSpacing, imgui.Vec2{})
imageSize := r.lastDisplaySize.ToFloat32().Multiply(0.25)
@ -460,5 +463,28 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
imgui.PopStyleVar()
imgui.End()
}
if igwrap.Begin("F3", nil, 0) {
imgui.PushStyleColor(imgui.StyleColorButton, imgui.Vec4{0, 0, 0, 0.5})
imgui.PushStyleColor(imgui.StyleColorButtonHovered, imgui.Vec4{0, 0, 0, 0.6})
imgui.PushStyleColor(imgui.StyleColorButtonActive, imgui.Vec4{0, 0, 0, 0.8})
igwrap.TextBlank()
isize := asset.WorldTextureAtlas.ImageSize
igwrap.TextBackground("Texture Atlas Size: (%dx%d)", isize[0], isize[1])
imgui.SameLine()
igwrap.TextBackground("[Hover]")
if imgui.IsItemHoveredV(imgui.HoveredFlagsAllowWhenDisabled) {
_, wheely := imgui.CurrentIO().MouseWheel()
if math.Abs(float64(wheely)) > 1e-3 {
atlasScale = util.Maxf(1, atlasScale+wheely)
}
imgui.BeginTooltip()
igwrap.Image(r.texture.Handle(), isize.ToFloat32().Multiply(atlasScale), itype.Rectf{0, 0, 1, 1})
imgui.EndTooltip()
}
imgui.PopStyleColorV(3)
imgui.End()
}
}
}