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Working on web examples

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Work on makefile and loader.html
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Ray 2017-04-09 23:46:47 +02:00
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docs/examples/web/textures_raw_data.c
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/*******************************************************************************************
*
* raylib [core] example - Load textures from raw data (adapted for HTML5 platform)
*
* NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
*
* This example has been created using raylib 1.3 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Copyright (c) 2015 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#include <stdlib.h> // Required for malloc() and free()
#if defined(PLATFORM_WEB)
#include <emscripten/emscripten.h>
#endif
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
int screenWidth = 800;
int screenHeight = 450;
Texture2D sonic;
Texture2D checked;
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void); // Update and Draw one frame
//----------------------------------------------------------------------------------
// Main Enry Point
//----------------------------------------------------------------------------------
int main()
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [textures] example - texture from raw data");
// Load RAW image data (512x512, 32bit RGBA, no file header)
Image sonicRaw = LoadImageRaw("resources/texture_formats/sonic_R8G8B8A8.raw", 512, 512, UNCOMPRESSED_R8G8B8A8, 0);
sonic = LoadTextureFromImage(sonicRaw); // Upload CPU (RAM) image to GPU (VRAM)
UnloadImage(sonicRaw); // Unload CPU (RAM) image data
// Generate a checked texture by code (1024x1024 pixels)
int width = 1024;
int height = 1024;
// Dynamic memory allocation to store pixels data (Color type)
Color *pixels = (Color *)malloc(width*height*sizeof(Color));
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
if (((x/32+y/32)/1)%2 == 0) pixels[y*height + x] = DARKBLUE;
else pixels[y*height + x] = SKYBLUE;
}
}
// Load pixels data into an image structure and create texture
Image checkedIm = LoadImageEx(pixels, width, height);
checked = LoadTextureFromImage(checkedIm);
UnloadImage(checkedIm); // Unload CPU (RAM) image data
// Dynamic memory must be freed after using it
free(pixels); // Unload CPU (RAM) pixels data
#if defined(PLATFORM_WEB)
emscripten_set_main_loop(UpdateDrawFrame, 0, 1);
#else
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
UpdateDrawFrame();
}
#endif
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadTexture(sonic); // Texture unloading
UnloadTexture(checked); // Texture unloading
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void)
{
// Update
//----------------------------------------------------------------------------------
// TODO: Update your variables here
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
DrawTexture(checked, screenWidth/2 - checked.width/2, screenHeight/2 - checked.height/2, Fade(WHITE, 0.3f));
DrawTexture(sonic, 330, -20, WHITE);
DrawText("CHECKED TEXTURE ", 84, 100, 30, DARKBLUE);
DrawText("GENERATED by CODE", 72, 164, 30, DARKBLUE);
DrawText("and RAW IMAGE LOADING", 46, 226, 30, DARKBLUE);
EndDrawing();
//----------------------------------------------------------------------------------
}