b4d67499a7
Changes: - Font structure has been redesigned, CharInfo structure contained character rectangle within font texture, it has not much sense, considering that it was an information relative to the font atlas generated and not the character itself, so character rectangles have been moved out from CharInfo to Font. - CharInfo included a data parameters to contain character pixel data (usually grayscale), generated on TTF font generation. It was inconsistent with other fonts types, so, now CharInfo includes directly an Image of the glyph. - REDESIGNED: GenImageFontAtlas(), additional recs parameter added, loaded and filled inside the function to export atlas characters rectangles, instead of silently modify the input CharInfo data. - REVIEWED: ImageTextEx(), funtion retrieved the font atlas image from the GPU, that was slow and problematic in several platforms. Now it uses directly the CharInfo image. Support for unicode codepoints has also been added. - REDESIGNED: ImageDraw(), now it includes an additional parameter, the color tint, not only it could be useful for several situations but also function signature is more consistent with similar functions. - ADDED: ImageFromImage() to generate a new image from a piece of another image. - REVIEWED: GetNextCodepoint(), renamed parameters to be more clear. Also all examples and games that were affected by those changes have been reviewed.
86 lines
3.9 KiB
C
86 lines
3.9 KiB
C
/*******************************************************************************************
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*
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* raylib [textures] example - Image loading and drawing on it
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*
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* NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
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*
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* This example has been created using raylib 1.4 (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) 2016 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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int main(void)
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [textures] example - image drawing");
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// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
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Image cat = LoadImage("resources/cat.png"); // Load image in CPU memory (RAM)
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ImageCrop(&cat, (Rectangle){ 100, 10, 280, 380 }); // Crop an image piece
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ImageFlipHorizontal(&cat); // Flip cropped image horizontally
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ImageResize(&cat, 150, 200); // Resize flipped-cropped image
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Image parrots = LoadImage("resources/parrots.png"); // Load image in CPU memory (RAM)
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// Draw one image over the other with a scaling of 1.5f
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ImageDraw(&parrots, cat, (Rectangle){ 0, 0, cat.width, cat.height }, (Rectangle){ 30, 40, cat.width*1.5f, cat.height*1.5f }, WHITE);
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ImageCrop(&parrots, (Rectangle){ 0, 50, parrots.width, parrots.height - 100 }); // Crop resulting image
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UnloadImage(cat); // Unload image from RAM
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// Load custom font for frawing on image
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Font font = LoadFont("resources/custom_jupiter_crash.png");
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// Draw over image using custom font
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ImageDrawTextEx(&parrots, (Vector2){ 300, 230 }, font, "PARROTS & CAT", font.baseSize, -2, WHITE);
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UnloadFont(font); // Unload custom spritefont (already drawn used on image)
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Texture2D texture = LoadTextureFromImage(parrots); // Image converted to texture, uploaded to GPU memory (VRAM)
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UnloadImage(parrots); // Once image has been converted to texture and uploaded to VRAM, it can be unloaded from RAM
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SetTargetFPS(60);
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//---------------------------------------------------------------------------------------
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// Main game loop
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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// Update
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//----------------------------------------------------------------------------------
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// TODO: Update your variables here
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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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DrawTexture(texture, screenWidth/2 - texture.width/2, screenHeight/2 - texture.height/2 - 40, WHITE);
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DrawRectangleLines(screenWidth/2 - texture.width/2, screenHeight/2 - texture.height/2 - 40, texture.width, texture.height, DARKGRAY);
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DrawText("We are drawing only one texture from various images composed!", 240, 350, 10, DARKGRAY);
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DrawText("Source images have been cropped, scaled, flipped and copied one over the other.", 190, 370, 10, DARKGRAY);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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UnloadTexture(texture); // Texture unloading
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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} |