219 lines
8.9 KiB
C
219 lines
8.9 KiB
C
/*******************************************************************************************
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*
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* raygui - raw image file importer
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*
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* This example has been created using raylib v1.7 (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) 2017 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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#define RAYGUI_IMPLEMENTATION
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#define RAYGUI_STYLE_SAVE_LOAD
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#include "raygui.h"
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#include <string.h> // Required for: strcpy()
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#include <stdlib.h> // Required for: atoi()
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//------------------------------------------------------------------------------------
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// Program main entry point
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//------------------------------------------------------------------------------------
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int main(int argc, char *argv[0])
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int SCREEN_WIDTH = 800;
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const int SCREEN_HEIGHT = 450;
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Rectangle panel = { SCREEN_WIDTH/2 - 100, SCREEN_HEIGHT/2 - 390/2, 200, 390 };
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char textImageWidth[16] = "\0";
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char textImageHeight[16] = "\0";
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char textImageSize[16] = "\0";
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bool btnLoadPressed = false;
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int buttonToggleChannel = 3;
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int buttonToggleDepth = 0;
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char *arrayChannel[4] = { "1", "2", "3", "4" };
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char *arrayDepth[3] = { "8", "16", "32" };
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// Image file info
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int dataSize = 0;
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char fileName[32] = "\0";
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bool showImportPanel = false;
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bool imageLoaded = false;
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float imageScale = 1.0f;
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// Raw image import values
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int width = 0;
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int height = 0;
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int format = UNCOMPRESSED_R8G8B8A8;
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int headerSize = 0;
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InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT, "raw image importer");
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Texture2D texture = { 0 };
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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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// Check if a file is dropped
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if (IsFileDropped())
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{
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int fileCount = 0;
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char **droppedFiles = GetDroppedFiles(&fileCount);
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// Check file extensions for drag-and-drop
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if ((fileCount == 1) && IsFileExtension(droppedFiles[0], ".raw"))
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{
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FILE *imageFile = fopen(droppedFiles[0], "rb");
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fseek(imageFile, 0L, SEEK_END);
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dataSize = ftell(imageFile);
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fclose(imageFile);
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// NOTE: Returned string is just a pointer to droppedFiles[0],
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// we need to make a copy of that data somewhere else: fileName
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strcpy(fileName, GetFileName(droppedFiles[0]));
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// Try to guess possible raw values
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// Let's assume image is square, RGBA, 8 bit per channel
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width = round(sqrt(dataSize/4));
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height = width;
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headerSize = dataSize - width*height*4;
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sprintf(textImageWidth, "%i", width);
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sprintf(textImageHeight, "%i", height);
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sprintf(textImageSize, "%i", headerSize);
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showImportPanel = true;
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}
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ClearDroppedFiles();
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}
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// Check if load button has been pressed
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if (btnLoadPressed)
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{
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// Convert input textImageWidth, textImageHeight to int
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width = atoi(textImageWidth);
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height = atoi(textImageHeight);
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format = UNCOMPRESSED_R8G8B8A8;
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int channels = atoi(arrayChannel[buttonToggleChannel]);
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int bpp = atoi(arrayDepth[buttonToggleDepth]);
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headerSize = atoi(textImageSize);
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// Depending on channels and bit depth, select correct pixel format
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if ((width != 0) && (height != 0) && (bpp == 8))
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{
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switch (channels)
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{
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case 1: format = UNCOMPRESSED_GRAYSCALE; break;
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case 2: format = UNCOMPRESSED_GRAY_ALPHA; break;
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case 3: format = UNCOMPRESSED_R8G8B8; break;
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case 4: format = UNCOMPRESSED_R8G8B8A8; break;
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default: break;
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}
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Image image = LoadImageRaw(fileName, width, height, format, headerSize);
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texture = LoadTextureFromImage(image);
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UnloadImage(image);
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showImportPanel = false;
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btnLoadPressed = false;
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if (texture.id > 0)
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{
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imageLoaded = true;
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imageScale = 400.0f/texture.height;
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}
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}
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}
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if (imageLoaded) imageScale += (float)GetMouseWheelMove(); // Image scale control
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(GuiGetBackgroundColor());
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DrawRectangleLines(10, 10, SCREEN_WIDTH - 20, SCREEN_HEIGHT - 20, GuiLinesColor());
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if (texture.id != 0)
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{
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DrawTextureEx(texture, (Vector2){ SCREEN_WIDTH/2 - texture.width*imageScale/2, SCREEN_HEIGHT/2 - texture.height*imageScale/2 }, 0, imageScale, WHITE);
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DrawText(FormatText("SCALE x%.0f", imageScale), 20, SCREEN_HEIGHT - 40, 20, GuiTextColor());
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}
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else DrawText("drag & drop RAW image file", 320, 180, 10, GuiTextColor());
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if (showImportPanel)
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{
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DrawRectangle(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, Fade(LIGHTGRAY, 0.5f));
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DrawRectangleRec(panel, GuiBackgroundColor());
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DrawRectangleLines(panel.x, panel.y, panel.width, panel.height, GuiLinesColor());
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GuiLabel((Rectangle){ panel.x + 10, panel.y + 10, 0, 0 }, FormatText("Import file: %s", fileName));
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GuiLabel((Rectangle){ panel.x + 10, panel.y + 30, 0, 0 }, FormatText("File size: %i bytes", dataSize));
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// ----- Resolution panel-----
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GuiGroupBox((Rectangle){ panel.x + 10, panel.y + 55, 180, 80 }, "Resolution");
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GuiLabel((Rectangle){ panel.x + 20, panel.y + 80, 0, 0 }, "Width:");
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GuiLabel((Rectangle){ panel.x + 150, panel.y + 80, 0, 0 }, "pixels");
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GuiTextBox((Rectangle){ panel.x + 60, panel.y + 75, 80, 20 }, textImageWidth, 4);
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GuiLabel((Rectangle){ panel.x + 20, panel.y + 105, 0, 0 }, "Height:");
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GuiLabel((Rectangle){ panel.x + 150, panel.y + 105, 0, 0 }, "pixels");
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GuiTextBox((Rectangle){ panel.x + 60, panel.y + 100, 80, 20 }, textImageHeight, 4);
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// ----- Pixel data panel -----
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GuiGroupBox((Rectangle){ panel.x + 10, panel.y + 155, 180, 110 }, "Pixels Data");
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GuiLabel((Rectangle){ panel.x + 20, panel.y + 170, 0, 0 }, "Channels:");
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GuiLabel((Rectangle){ panel.x + 20, panel.y + 215, 0, 0 }, "Bit Depth:");
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buttonToggleChannel = GuiToggleGroup((Rectangle){ panel.x + 20, panel.y + 185, 38, 20 }, arrayChannel, 4, buttonToggleChannel);
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buttonToggleDepth = GuiToggleGroup((Rectangle){ panel.x + 20, panel.y + 230, 51, 20 }, arrayDepth, 3, buttonToggleDepth);
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// ----- Header panel -----
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GuiGroupBox((Rectangle){ panel.x + 10, panel.y + 285, 180, 50 }, "Header");
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GuiLabel((Rectangle){ panel.x + 20, panel.y + 305, 0, 0 }, "Size:");
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GuiLabel((Rectangle){ panel.x + 150, panel.y + 305, 0, 0 }, "bytes");
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GuiTextBox((Rectangle){ panel.x + 60, panel.y + 300, 80, 20 }, textImageSize, 4);
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btnLoadPressed = GuiButton((Rectangle){ panel.x + 10, panel.y + 350, 180, 24 }, "Load RAW Image");
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}
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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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if (texture.id != 0) UnloadTexture(texture);
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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} |