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Diffstat (limited to 'examples/textures_image_processing.lua')
| -rw-r--r-- | examples/textures_image_processing.lua | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/examples/textures_image_processing.lua b/examples/textures_image_processing.lua deleted file mode 100644 index b7304b37..00000000 --- a/examples/textures_image_processing.lua +++ /dev/null @@ -1,134 +0,0 @@ -------------------------------------------------------------------------------------------- --- --- raylib [textures] example - Image processing --- --- NOTE: Images are loaded in CPU memory (RAM) textures are loaded in GPU memory (VRAM) --- --- This example has been created using raylib 1.6 (www.raylib.com) --- raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details) --- --- Copyright (c) 2014-2016 Ramon Santamaria (@raysan5) --- -------------------------------------------------------------------------------------------- - ---#include <stdlib.h> -- Required for: free() - -NUM_PROCESSES = 8 - --- enum ImageProcess -local COLOR_NONE = 1 -local COLOR_GRAYSCALE = 2 -local COLOR_TINT = 3 -local COLOR_INVERT = 4 -local COLOR_CONTRAST = 5 -local COLOR_BRIGHTNESS = 6 -local FLIP_VERTICAL = 7 -local FLIP_HORIZONTAL = 8 - -local processText = { - "NO PROCESSING", - "COLOR GRAYSCALE", - "COLOR TINT", - "COLOR INVERT", - "COLOR CONTRAST", - "COLOR BRIGHTNESS", - "FLIP VERTICAL", - "FLIP HORIZONTAL" -} - --- Initialization -------------------------------------------------------------------------------------------- -local screenWidth = 800 -local screenHeight = 450 - -InitWindow(screenWidth, screenHeight, "raylib [textures] example - image processing") - --- NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required) - -local image = LoadImage("resources/parrots.png") -- Loaded in CPU memory (RAM) -image = ImageFormat(image, TextureFormat.UNCOMPRESSED_R8G8B8A8) -- Format image to RGBA 32bit (required for texture update) -local texture = LoadTextureFromImage(image) -- Image converted to texture, GPU memory (VRAM) - -local currentProcess = COLOR_NONE -local textureReload = false - -local selectRecs = {} - -for i = 1, NUM_PROCESSES do selectRecs[i] = Rectangle(40, 50 + 32*i, 150, 30) end - -SetTargetFPS(60) -------------------------------------------------------------------------------------------- - --- Main game loop -while not WindowShouldClose() do -- Detect window close button or ESC key - -- Update - --------------------------------------------------------------------------------------- - if (IsKeyPressed(KEY.DOWN)) then - currentProcess = currentProcess + 1 - if (currentProcess > NUM_PROCESSES) then currentProcess = 1 end - textureReload = true - elseif (IsKeyPressed(KEY.UP)) then - currentProcess = currentProcess - 1 - if (currentProcess < 1) then currentProcess = NUM_PROCESSES end - textureReload = true - end - - if (textureReload) then - UnloadImage(image) -- Unload current image data - image = LoadImage("resources/parrots.png") -- Re-load image data - - -- NOTE: Image processing is a costly CPU process to be done every frame, - -- If image processing is required in a frame-basis, it should be done - -- with a texture and by shaders - if (currentProcess == COLOR_GRAYSCALE) then image = ImageColorGrayscale(image) - elseif (currentProcess == COLOR_TINT) then image = ImageColorTint(image, GREEN) - elseif (currentProcess == COLOR_INVERT) then image = ImageColorInvert(image) - elseif (currentProcess == COLOR_CONTRAST) then image = ImageColorContrast(image, -40) - elseif (currentProcess == COLOR_BRIGHTNESS) then image = ImageColorBrightness(image, -80) - elseif (currentProcess == FLIP_VERTICAL) then image = ImageFlipVertical(image) - elseif (currentProcess == FLIP_HORIZONTAL) then image = ImageFlipHorizontal(image) - end - - local pixels = {} - pixels = GetImageData(image) -- Get pixel data from image (RGBA 32bit) - texture = UpdateTexture(texture, pixels) -- Update texture with new image data - - textureReload = false - end - --------------------------------------------------------------------------------------- - - -- Draw - --------------------------------------------------------------------------------------- - BeginDrawing() - - ClearBackground(RAYWHITE) - - DrawText("IMAGE PROCESSING:", 40, 30, 10, DARKGRAY) - - -- Draw rectangles - for i = 1, NUM_PROCESSES do - if (i == currentProcess) then - DrawRectangleRec(selectRecs[i], SKYBLUE) - DrawRectangleLines(selectRecs[i].x, selectRecs[i].y, selectRecs[i].width, selectRecs[i].height, BLUE) - DrawText(processText[i], selectRecs[i].x + selectRecs[i].width/2 - MeasureText(processText[i], 10)//2, selectRecs[i].y + 11, 10, DARKBLUE) - else - DrawRectangleRec(selectRecs[i], LIGHTGRAY) - DrawRectangleLines(selectRecs[i].x, selectRecs[i].y, selectRecs[i].width, selectRecs[i].height, GRAY) - DrawText(processText[i], selectRecs[i].x + selectRecs[i].width/2 - MeasureText(processText[i], 10)//2, selectRecs[i].y + 11, 10, DARKGRAY) - end - end - - DrawTexture(texture, screenWidth - texture.width - 60, screenHeight/2 - texture.height/2, WHITE) - DrawRectangleLines(screenWidth - texture.width - 60, screenHeight/2 - texture.height/2, texture.width, texture.height, BLACK) - - EndDrawing() - --------------------------------------------------------------------------------------- -end - --- De-Initialization -------------------------------------------------------------------------------------------- -UnloadTexture(texture) -- Unload texture from VRAM -UnloadImage(image) -- Unload image from RAM - -CloseWindow() -- Close window and OpenGL context --------------------------------------------------------------------------------------------
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