mirror of
https://github.com/raysan5/raylib.git
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217 lines
9.0 KiB
Lua
217 lines
9.0 KiB
Lua
-------------------------------------------------------------------------------------------
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--
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-- raylib [textures] example - texture formats loading (compressed and uncompressed)
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--
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-- NOTE: This example requires raylib OpenGL 3.3+ or ES2 versions for compressed textures,
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-- OpenGL 1.1 does not support compressed textures, only uncompressed ones.
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--
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-- This example has been created using raylib 1.6 (www.raylib.com)
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-- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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--
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-- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5)
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--
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-------------------------------------------------------------------------------------------
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NUM_TEXTURES = 24
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PNG_R8G8B8A8 = 1
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PVR_GRAYSCALE = 2
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PVR_GRAY_ALPHA = 3
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PVR_R5G6B5 = 4
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PVR_R5G5B5A1 = 5
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PVR_R4G4B4A4 = 6
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DDS_R5G6B5 = 7
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DDS_R5G5B5A1 = 8
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DDS_R4G4B4A4 = 9
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DDS_R8G8B8A8 = 10
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DDS_DXT1_RGB = 11
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DDS_DXT1_RGBA = 12
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DDS_DXT3_RGBA = 13
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DDS_DXT5_RGBA = 14
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PKM_ETC1_RGB = 15
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PKM_ETC2_RGB = 16
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PKM_ETC2_EAC_RGBA = 17
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KTX_ETC1_RGB = 18
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KTX_ETC2_RGB = 19
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KTX_ETC2_EAC_RGBA = 20
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ASTC_4x4_LDR = 21
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ASTC_8x8_LDR = 22
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PVR_PVRT_RGB = 23
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PVR_PVRT_RGBA = 24
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local formatText = {
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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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-- Initialization
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-------------------------------------------------------------------------------------------
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local screenWidth = 800
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local screenHeight = 450
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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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local sonic = {}
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sonic[PNG_R8G8B8A8] = LoadTexture("resources/texture_formats/sonic.png")
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-- Load UNCOMPRESSED PVR texture data
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sonic[PVR_GRAYSCALE] = LoadTexture("resources/texture_formats/sonic_GRAYSCALE.pvr")
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sonic[PVR_GRAY_ALPHA] = LoadTexture("resources/texture_formats/sonic_L8A8.pvr")
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sonic[PVR_R5G6B5] = LoadTexture("resources/texture_formats/sonic_R5G6B5.pvr")
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sonic[PVR_R5G5B5A1] = LoadTexture("resources/texture_formats/sonic_R5G5B5A1.pvr")
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sonic[PVR_R4G4B4A4] = LoadTexture("resources/texture_formats/sonic_R4G4B4A4.pvr")
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-- Load UNCOMPRESSED DDS texture data
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sonic[DDS_R5G6B5] = LoadTexture("resources/texture_formats/sonic_R5G6B5.dds")
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sonic[DDS_R5G5B5A1] = LoadTexture("resources/texture_formats/sonic_A1R5G5B5.dds")
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sonic[DDS_R4G4B4A4] = LoadTexture("resources/texture_formats/sonic_A4R4G4B4.dds")
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sonic[DDS_R8G8B8A8] = LoadTexture("resources/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] = LoadTexture("resources/texture_formats/sonic_DXT1_RGB.dds")
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sonic[DDS_DXT1_RGBA] = LoadTexture("resources/texture_formats/sonic_DXT1_RGBA.dds")
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sonic[DDS_DXT3_RGBA] = LoadTexture("resources/texture_formats/sonic_DXT3_RGBA.dds")
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sonic[DDS_DXT5_RGBA] = LoadTexture("resources/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] = LoadTexture("resources/texture_formats/sonic_ETC1_RGB.pkm")
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sonic[PKM_ETC2_RGB] = LoadTexture("resources/texture_formats/sonic_ETC2_RGB.pkm")
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sonic[PKM_ETC2_EAC_RGBA] = LoadTexture("resources/texture_formats/sonic_ETC2_EAC_RGBA.pkm")
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sonic[KTX_ETC1_RGB] = LoadTexture("resources/texture_formats/sonic_ETC1_RGB.ktx")
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sonic[KTX_ETC2_RGB] = LoadTexture("resources/texture_formats/sonic_ETC2_RGB.ktx")
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sonic[KTX_ETC2_EAC_RGBA] = LoadTexture("resources/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] = LoadTexture("resources/texture_formats/sonic_ASTC_4x4_ldr.astc")
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sonic[ASTC_8x8_LDR] = LoadTexture("resources/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] = LoadTexture("resources/texture_formats/sonic_PVRT_RGB.pvr")
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sonic[PVR_PVRT_RGBA] = LoadTexture("resources/texture_formats/sonic_PVRT_RGBA.pvr")
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local selectedFormat = PNG_R8G8B8A8
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local selectRecs = {}
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for i = 1, NUM_TEXTURES do
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if ((i - 1) < NUM_TEXTURES//2) then selectRecs[i] = Rectangle(40, 30 + 32*(i - 1), 150, 30)
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else selectRecs[i] = Rectangle(40 + 152, 30 + 32*((i - 1) - NUM_TEXTURES//2), 150, 30) end
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end
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-- Texture sizes in KB
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local textureSizes = {
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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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SetTargetFPS(60) -- Set our game to run at 60 frames-per-second
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-------------------------------------------------------------------------------------------
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-- Main game loop
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while not WindowShouldClose() do -- Detect window close button or ESC key
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-- Update
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---------------------------------------------------------------------------------------
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if (IsKeyPressed(KEY.DOWN)) then
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selectedFormat = selectedFormat + 1
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if (selectedFormat > NUM_TEXTURES) then selectedFormat = 1 end
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elseif (IsKeyPressed(KEY.UP)) then
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selectedFormat = selectedFormat - 1
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if (selectedFormat < 1) then selectedFormat = NUM_TEXTURES end
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elseif (IsKeyPressed(KEY.RIGHT)) then
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if (selectedFormat < NUM_TEXTURES//2) then selectedFormat = selectedFormat + NUM_TEXTURES//2 end
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elseif (IsKeyPressed(KEY.LEFT)) then
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if (selectedFormat > NUM_TEXTURES//2) then selectedFormat = selectedFormat - NUM_TEXTURES//2 end
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end
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---------------------------------------------------------------------------------------
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-- Draw
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---------------------------------------------------------------------------------------
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BeginDrawing()
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ClearBackground(RAYWHITE)
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-- Draw rectangles
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for i = 1, NUM_TEXTURES do
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if (i == selectedFormat) then
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DrawRectangleRec(selectRecs[i], SKYBLUE)
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DrawRectangleLines(selectRecs[i].x, selectRecs[i].y, selectRecs[i].width, selectRecs[i].height, BLUE)
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DrawText(formatText[i], selectRecs[i].x + selectRecs[i].width/2 - MeasureText(formatText[i], 10)//2, selectRecs[i].y + 11, 10, DARKBLUE)
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else
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DrawRectangleRec(selectRecs[i], LIGHTGRAY)
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DrawRectangleLines(selectRecs[i].x, selectRecs[i].y, selectRecs[i].width, selectRecs[i].height, GRAY)
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DrawText(formatText[i], selectRecs[i].x + selectRecs[i].width/2 - MeasureText(formatText[i], 10)//2, selectRecs[i].y + 11, 10, DARKGRAY)
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end
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end
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-- Draw selected texture
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if (sonic[selectedFormat].id ~= 0) then DrawTexture(sonic[selectedFormat], 350, -10, WHITE)
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else
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DrawRectangleLines(488, 165, 200, 110, DARKGRAY)
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DrawText("FORMAT", 550, 180, 20, MAROON)
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DrawText("NOT SUPPORTED", 500, 210, 20, MAROON)
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DrawText("ON YOUR GPU", 520, 240, 20, MAROON)
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end
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DrawText("Select texture format (use cursor keys):", 40, 10, 10, DARKGRAY)
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DrawText("Required GPU memory size (VRAM):", 40, 427, 10, DARKGRAY)
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DrawText(string.format("%4.0f KB", textureSizes[selectedFormat]), 240, 420, 20, DARKBLUE)
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EndDrawing()
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---------------------------------------------------------------------------------------
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end
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-- De-Initialization
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-------------------------------------------------------------------------------------------
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for i = 1, NUM_TEXTURES do UnloadTexture(sonic[i]) end
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CloseWindow() -- Close window and OpenGL context
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