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Milan Nikolic
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219
examples/textures/formats_loading/main.go
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examples/textures/formats_loading/main.go
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package main
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import (
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"fmt"
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"github.com/gen2brain/raylib-go/raylib"
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)
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const NumTextures = 24
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const (
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PNG_R8G8B8A8 = iota
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PVR_GRAYSCALE
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PVR_GRAY_ALPHA
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PVR_R5G6B5
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PVR_R5G5B5A1
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PVR_R4G4B4A4
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DDS_R5G6B5
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DDS_R5G5B5A1
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DDS_R4G4B4A4
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DDS_R8G8B8A8
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DDS_DXT1_RGB
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DDS_DXT1_RGBA
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DDS_DXT3_RGBA
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DDS_DXT5_RGBA
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PKM_ETC1_RGB
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PKM_ETC2_RGB
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PKM_ETC2_EAC_RGBA
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KTX_ETC1_RGB
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KTX_ETC2_RGB
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KTX_ETC2_EAC_RGBA
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ASTC_4x4_LDR
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ASTC_8x8_LDR
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PVR_PVRT_RGB
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PVR_PVRT_RGBA
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)
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var formatText = []string{
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"PNG_R8G8B8A8",
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"PVR_GRAYSCALE",
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"PVR_GRAY_ALPHA",
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"PVR_R5G6B5",
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"PVR_R5G5B5A1",
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"PVR_R4G4B4A4",
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"DDS_R5G6B5",
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"DDS_R5G5B5A1",
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"DDS_R4G4B4A4",
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"DDS_R8G8B8A8",
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"DDS_DXT1_RGB",
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"DDS_DXT1_RGBA",
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"DDS_DXT3_RGBA",
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"DDS_DXT5_RGBA",
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"PKM_ETC1_RGB",
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"PKM_ETC2_RGB",
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"PKM_ETC2_EAC_RGBA",
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"KTX_ETC1_RGB",
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"KTX_ETC2_RGB",
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"KTX_ETC2_EAC_RGBA",
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"ASTC_4x4_LDR",
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"ASTC_8x8_LDR",
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"PVR_PVRT_RGB",
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"PVR_PVRT_RGBA",
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}
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func main() {
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screenWidth := int32(800)
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screenHeight := int32(450)
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raylib.InitWindow(screenWidth, screenHeight, "raylib [textures] example - texture formats loading")
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// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
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sonic := make([]raylib.Texture2D, NumTextures)
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sonic[PNG_R8G8B8A8] = raylib.LoadTexture("texture_formats/sonic.png")
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// Load UNCOMPRESSED PVR texture data
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sonic[PVR_GRAYSCALE] = raylib.LoadTexture("texture_formats/sonic_GRAYSCALE.pvr")
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sonic[PVR_GRAY_ALPHA] = raylib.LoadTexture("texture_formats/sonic_L8A8.pvr")
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sonic[PVR_R5G6B5] = raylib.LoadTexture("texture_formats/sonic_R5G6B5.pvr")
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sonic[PVR_R5G5B5A1] = raylib.LoadTexture("texture_formats/sonic_R5G5B5A1.pvr")
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sonic[PVR_R4G4B4A4] = raylib.LoadTexture("texture_formats/sonic_R4G4B4A4.pvr")
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// Load UNCOMPRESSED DDS texture data
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sonic[DDS_R5G6B5] = raylib.LoadTexture("texture_formats/sonic_R5G6B5.dds")
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sonic[DDS_R5G5B5A1] = raylib.LoadTexture("texture_formats/sonic_A1R5G5B5.dds")
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sonic[DDS_R4G4B4A4] = raylib.LoadTexture("texture_formats/sonic_A4R4G4B4.dds")
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sonic[DDS_R8G8B8A8] = raylib.LoadTexture("texture_formats/sonic_A8R8G8B8.dds")
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// Load COMPRESSED DXT DDS texture data (if supported)
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sonic[DDS_DXT1_RGB] = raylib.LoadTexture("texture_formats/sonic_DXT1_RGB.dds")
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sonic[DDS_DXT1_RGBA] = raylib.LoadTexture("texture_formats/sonic_DXT1_RGBA.dds")
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sonic[DDS_DXT3_RGBA] = raylib.LoadTexture("texture_formats/sonic_DXT3_RGBA.dds")
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sonic[DDS_DXT5_RGBA] = raylib.LoadTexture("texture_formats/sonic_DXT5_RGBA.dds")
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// Load COMPRESSED ETC texture data (if supported)
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sonic[PKM_ETC1_RGB] = raylib.LoadTexture("texture_formats/sonic_ETC1_RGB.pkm")
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sonic[PKM_ETC2_RGB] = raylib.LoadTexture("texture_formats/sonic_ETC2_RGB.pkm")
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sonic[PKM_ETC2_EAC_RGBA] = raylib.LoadTexture("texture_formats/sonic_ETC2_EAC_RGBA.pkm")
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sonic[KTX_ETC1_RGB] = raylib.LoadTexture("texture_formats/sonic_ETC1_RGB.ktx")
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sonic[KTX_ETC2_RGB] = raylib.LoadTexture("texture_formats/sonic_ETC2_RGB.ktx")
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sonic[KTX_ETC2_EAC_RGBA] = raylib.LoadTexture("texture_formats/sonic_ETC2_EAC_RGBA.ktx")
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// Load COMPRESSED ASTC texture data (if supported)
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sonic[ASTC_4x4_LDR] = raylib.LoadTexture("texture_formats/sonic_ASTC_4x4_ldr.astc")
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sonic[ASTC_8x8_LDR] = raylib.LoadTexture("texture_formats/sonic_ASTC_8x8_ldr.astc")
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// Load COMPRESSED PVR texture data (if supported)
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sonic[PVR_PVRT_RGB] = raylib.LoadTexture("texture_formats/sonic_PVRT_RGB.pvr")
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sonic[PVR_PVRT_RGBA] = raylib.LoadTexture("texture_formats/sonic_PVRT_RGBA.pvr")
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selectedFormat := PNG_R8G8B8A8
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selectRecs := make([]raylib.Rectangle, NumTextures)
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for i := 0; i < NumTextures; i++ {
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if i < NumTextures/2 {
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selectRecs[i] = raylib.NewRectangle(40, int32(30+32*i), 150, 30)
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} else {
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selectRecs[i] = raylib.NewRectangle(40+152, int32(30+32*(i-NumTextures/2)), 150, 30)
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}
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}
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// Texture sizes in KB
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var textureSizes = [NumTextures]int{
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512 * 512 * 32 / 8 / 1024, //PNG_R8G8B8A8 (32 bpp)
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512 * 512 * 8 / 8 / 1024, //PVR_GRAYSCALE (8 bpp)
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512 * 512 * 16 / 8 / 1024, //PVR_GRAY_ALPHA (16 bpp)
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512 * 512 * 16 / 8 / 1024, //PVR_R5G6B5 (16 bpp)
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512 * 512 * 16 / 8 / 1024, //PVR_R5G5B5A1 (16 bpp)
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512 * 512 * 16 / 8 / 1024, //PVR_R4G4B4A4 (16 bpp)
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512 * 512 * 16 / 8 / 1024, //DDS_R5G6B5 (16 bpp)
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512 * 512 * 16 / 8 / 1024, //DDS_R5G5B5A1 (16 bpp)
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512 * 512 * 16 / 8 / 1024, //DDS_R4G4B4A4 (16 bpp)
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512 * 512 * 32 / 8 / 1024, //DDS_R8G8B8A8 (32 bpp)
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512 * 512 * 4 / 8 / 1024, //DDS_DXT1_RGB (4 bpp) -Compressed-
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512 * 512 * 4 / 8 / 1024, //DDS_DXT1_RGBA (4 bpp) -Compressed-
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512 * 512 * 8 / 8 / 1024, //DDS_DXT3_RGBA (8 bpp) -Compressed-
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512 * 512 * 8 / 8 / 1024, //DDS_DXT5_RGBA (8 bpp) -Compressed-
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512 * 512 * 4 / 8 / 1024, //PKM_ETC1_RGB (4 bpp) -Compressed-
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512 * 512 * 4 / 8 / 1024, //PKM_ETC2_RGB (4 bpp) -Compressed-
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512 * 512 * 8 / 8 / 1024, //PKM_ETC2_EAC_RGBA (8 bpp) -Compressed-
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512 * 512 * 4 / 8 / 1024, //KTX_ETC1_RGB (4 bpp) -Compressed-
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512 * 512 * 4 / 8 / 1024, //KTX_ETC2_RGB (4 bpp) -Compressed-
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512 * 512 * 8 / 8 / 1024, //KTX_ETC2_EAC_RGBA (8 bpp) -Compressed-
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512 * 512 * 8 / 8 / 1024, //ASTC_4x4_LDR (8 bpp) -Compressed-
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512 * 512 * 2 / 8 / 1024, //ASTC_8x8_LDR (2 bpp) -Compressed-
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512 * 512 * 4 / 8 / 1024, //PVR_PVRT_RGB (4 bpp) -Compressed-
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512 * 512 * 4 / 8 / 1024, //PVR_PVRT_RGBA (4 bpp) -Compressed-
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}
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raylib.SetTargetFPS(60)
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for !raylib.WindowShouldClose() {
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// Update
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if raylib.IsKeyPressed(raylib.KeyDown) {
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selectedFormat++
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if selectedFormat >= NumTextures {
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selectedFormat = 0
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}
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} else if raylib.IsKeyPressed(raylib.KeyUp) {
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selectedFormat--
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if selectedFormat < 0 {
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selectedFormat = NumTextures - 1
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}
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} else if raylib.IsKeyPressed(raylib.KeyRight) {
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if selectedFormat < NumTextures/2 {
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selectedFormat += NumTextures / 2
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}
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} else if raylib.IsKeyPressed(raylib.KeyLeft) {
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if selectedFormat >= NumTextures/2 {
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selectedFormat -= NumTextures / 2
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}
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}
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// Draw
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raylib.BeginDrawing()
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raylib.ClearBackground(raylib.RayWhite)
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// Draw rectangles
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for i := 0; i < NumTextures; i++ {
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if i == selectedFormat {
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raylib.DrawRectangleRec(selectRecs[i], raylib.SkyBlue)
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raylib.DrawRectangleLines(selectRecs[i].X, selectRecs[i].Y, selectRecs[i].Width, selectRecs[i].Height, raylib.Blue)
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raylib.DrawText(formatText[i], selectRecs[i].X+selectRecs[i].Width/2-raylib.MeasureText(formatText[i], 10)/2, selectRecs[i].Y+11, 10, raylib.DarkBlue)
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} else {
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raylib.DrawRectangleRec(selectRecs[i], raylib.LightGray)
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raylib.DrawRectangleLines(selectRecs[i].X, selectRecs[i].Y, selectRecs[i].Width, selectRecs[i].Height, raylib.Gray)
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raylib.DrawText(formatText[i], selectRecs[i].X+selectRecs[i].Width/2-raylib.MeasureText(formatText[i], 10)/2, selectRecs[i].Y+11, 10, raylib.DarkGray)
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}
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}
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// Draw selected texture
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if sonic[selectedFormat].Id != 0 {
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raylib.DrawTexture(sonic[selectedFormat], 350, -10, raylib.White)
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} else {
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raylib.DrawRectangleLines(488, 165, 200, 110, raylib.DarkGray)
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raylib.DrawText("FORMAT", 550, 180, 20, raylib.Maroon)
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raylib.DrawText("NOT SUPPORTED", 500, 210, 20, raylib.Maroon)
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raylib.DrawText("ON YOUR GPU", 520, 240, 20, raylib.Maroon)
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}
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raylib.DrawText("Select texture format (use cursor keys):", 40, 10, 10, raylib.DarkGray)
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raylib.DrawText("Required GPU memory size (VRAM):", 40, 427, 10, raylib.DarkGray)
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raylib.DrawText(fmt.Sprintf("%4.0d KB", textureSizes[selectedFormat]), 240, 420, 20, raylib.DarkBlue)
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raylib.EndDrawing()
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}
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for i := 0; i < NumTextures; i++ {
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raylib.UnloadTexture(sonic[i])
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}
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raylib.CloseWindow()
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}
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