mirror of
https://github.com/raysan5/raylib.git
synced 2025-10-26 12:27:01 +00:00
Update to version 1.0.5
Check CHANGELOG for changes
This commit is contained in:
raysan5
@@ -6,6 +6,14 @@ Current Release: raylib 1.0.4 (January 2014)
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NOTE: Only versions marked as 'Release' are available on release folder, updates are only available as source.
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NOTE: Current Release includes all previous updates.
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-----------------------------------------------
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Update: raylib 1.0.5 (28 January 2014)
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-----------------------------------------------
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[audio] LoadSound() - Corrected a bug, WAV file was not closed!
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[core] GetMouseWheelMove() - Added, check mouse wheel Y movement
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[models] LoadHeightmap() - Added, Heightmap can be loaded as a Model
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[tool] rREM updated, now supports (partially) drag and drop of files
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-----------------------------------------------
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Release: raylib 1.0.4 (23 January 2014)
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-----------------------------------------------
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@@ -11,12 +11,6 @@
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#include "raylib.h"
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// Useful function for fade-ins and fade-outs
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Color Fade(Color col, float alpha)
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{
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return (Color){col.r, col.g, col.b, col.a*alpha};
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}
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int main()
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{
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// Initialization
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@@ -504,6 +504,8 @@ static Wave LoadWAV(char *fileName)
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wave.channels = waveFormat.numChannels;
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wave.bitsPerSample = waveFormat.bitsPerSample;
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fclose(wavFile);
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return wave;
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}
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25
src/core.c
25
src/core.c
@@ -77,6 +77,9 @@ static char currentMouseState[3] = { 0 }; // Required to check if mouse btn pr
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static char previousGamepadState[32] = {0}; // Required to check if gamepad btn pressed/released once
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static char currentGamepadState[32] = {0}; // Required to check if gamepad btn pressed/released once
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static int previousMouseWheelY = 0;
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static int currentMouseWheelY = 0;
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//----------------------------------------------------------------------------------
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// Other Modules Functions Declaration (required by core)
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//----------------------------------------------------------------------------------
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@@ -89,6 +92,7 @@ extern void UnloadDefaultFont(); // [Module: text] Unloads default f
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static void InitGraphicsDevice(); // Initialize Graphics Device (OpenGL stuff)
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static void ErrorCallback(int error, const char *description); // GLFW3 Error Callback, runs on GLFW3 error
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static void KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods); // GLFW3 Keyboard Callback, runs on key pressed
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static void ScrollCallback(GLFWwindow* window, double xoffset, double yoffset); // GLFW3 Srolling Callback, runs on mouse wheel
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static void CursorEnterCallback(GLFWwindow* window, int enter); // GLFW3 Cursor Enter Callback, cursor enters client area
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static void WindowSizeCallback(GLFWwindow* window, int width, int height); // GLFW3 WindowSize Callback, runs when window is resized
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static void CameraLookAt(Vector3 position, Vector3 target, Vector3 up); // Setup camera view (updates MODELVIEW matrix)
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@@ -133,6 +137,7 @@ void InitWindowEx(int width, int height, const char* title, bool resizable, cons
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glfwMakeContextCurrent(window);
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glfwSetKeyCallback(window, KeyCallback);
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glfwSetScrollCallback(window, ScrollCallback);
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glfwSwapInterval(0); // Disables GPU v-sync (if set), so frames are not limited to screen refresh rate (60Hz -> 60 FPS)
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// If not set, swap interval uses GPU v-sync configuration
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// Framerate can be setup using SetTargetFPS()
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@@ -196,6 +201,8 @@ void ToggleFullscreen()
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glfwDestroyWindow(window); // Destroy the current window (we will recreate it!)
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// TODO: WARNING! All loaded resources are lost, we loose Context!
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// NOTE: Window aspect ratio is always windowWidth / windowHeight
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if (fullscreen) window = glfwCreateWindow(windowWidth, windowHeight, windowTitle, glfwGetPrimaryMonitor(), NULL); // Fullscreen mode
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else window = glfwCreateWindow(windowWidth, windowHeight, windowTitle, NULL, NULL);
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@@ -498,6 +505,16 @@ Vector2 GetMousePosition()
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return position;
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}
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// Returns mouse wheel movement Y
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int GetMouseWheelMove()
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{
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previousMouseWheelY = currentMouseWheelY;
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currentMouseWheelY = 0;
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return previousMouseWheelY;
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}
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// Detect if a gamepad is available
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bool IsGamepadAvailable(int gamepad)
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{
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@@ -602,6 +619,12 @@ static void ErrorCallback(int error, const char *description)
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//fprintf(stderr, description);
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}
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// GLFW3 Srolling Callback, runs on mouse wheel
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static void ScrollCallback(GLFWwindow* window, double xoffset, double yoffset)
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{
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currentMouseWheelY = (int)yoffset;
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}
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// GLFW3 Keyboard Callback, runs on key pressed
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static void KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods)
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{
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@@ -662,8 +685,6 @@ static void InitGraphicsDevice()
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glMatrixMode(GL_MODELVIEW); // Switch back to MODELVIEW matrix
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glLoadIdentity(); // Reset current matrix (MODELVIEW)
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glDisable(GL_LIGHTING); // Lighting Disabled...
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// TODO: Create an efficient Lighting System with proper functions (raylib 1.x)
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/*
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glEnable(GL_COLOR_MATERIAL); // Enable materials, causes some glMaterial atributes to track the current color (glColor)...
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227
src/models.c
227
src/models.c
@@ -49,7 +49,7 @@
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//----------------------------------------------------------------------------------
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// Module specific Functions Declaration
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//----------------------------------------------------------------------------------
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// No private (static) functions in this module
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static float GetHeightValue(Color pixel);
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//----------------------------------------------------------------------------------
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// Module Functions Definition
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@@ -465,100 +465,100 @@ Model LoadModel(const char *fileName)
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int numTexCoords = 0;
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int numTriangles = 0;
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FILE* objfile;
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FILE* objFile;
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objfile = fopen(fileName, "rt");
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objFile = fopen(fileName, "rt");
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while(!feof(objfile))
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while(!feof(objFile))
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{
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fscanf(objfile, "%c", &dataType);
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fscanf(objFile, "%c", &dataType);
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switch(dataType)
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{
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case '#': // It's a comment
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{
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fgets(comments, 200, objfile);
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fgets(comments, 200, objFile);
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} break;
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case 'v':
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{
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fscanf(objfile, "%c", &dataType);
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fscanf(objFile, "%c", &dataType);
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if (dataType == 't') // Read texCoord
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{
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fgets(comments, 200, objfile);
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fscanf(objfile, "%c", &dataType);
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fgets(comments, 200, objFile);
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fscanf(objFile, "%c", &dataType);
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while (dataType == 'v')
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{
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fgets(comments, 200, objfile);
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fscanf(objfile, "%c", &dataType);
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fgets(comments, 200, objFile);
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fscanf(objFile, "%c", &dataType);
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}
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if (dataType == '#')
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{
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fscanf(objfile, "%i", &numTexCoords);
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fscanf(objFile, "%i", &numTexCoords);
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}
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else printf("Ouch! Something was wrong...");
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fgets(comments, 200, objfile);
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fgets(comments, 200, objFile);
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}
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else if (dataType == 'n') // Read normals
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{
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fgets(comments, 200, objfile);
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fscanf(objfile, "%c", &dataType);
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fgets(comments, 200, objFile);
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fscanf(objFile, "%c", &dataType);
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while (dataType == 'v')
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{
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fgets(comments, 200, objfile);
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fscanf(objfile, "%c", &dataType);
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fgets(comments, 200, objFile);
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fscanf(objFile, "%c", &dataType);
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}
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if (dataType == '#')
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{
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fscanf(objfile, "%i", &numNormals);
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fscanf(objFile, "%i", &numNormals);
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}
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else printf("Ouch! Something was wrong...");
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fgets(comments, 200, objfile);
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fgets(comments, 200, objFile);
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}
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else // Read vertex
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{
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fgets(comments, 200, objfile);
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fscanf(objfile, "%c", &dataType);
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fgets(comments, 200, objFile);
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fscanf(objFile, "%c", &dataType);
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while (dataType == 'v')
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{
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fgets(comments, 200, objfile);
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fscanf(objfile, "%c", &dataType);
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fgets(comments, 200, objFile);
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fscanf(objFile, "%c", &dataType);
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}
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if (dataType == '#')
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{
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fscanf(objfile, "%i", &numVertex);
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fscanf(objFile, "%i", &numVertex);
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}
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else printf("Ouch! Something was wrong...");
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fgets(comments, 200, objfile);
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fgets(comments, 200, objFile);
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}
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} break;
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case 'f':
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{
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fgets(comments, 200, objfile);
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fscanf(objfile, "%c", &dataType);
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fgets(comments, 200, objFile);
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fscanf(objFile, "%c", &dataType);
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while (dataType == 'f')
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{
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fgets(comments, 200, objfile);
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fscanf(objfile, "%c", &dataType);
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fgets(comments, 200, objFile);
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fscanf(objFile, "%c", &dataType);
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}
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if (dataType == '#')
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{
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fscanf(objfile, "%i", &numTriangles);
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fscanf(objFile, "%i", &numTriangles);
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}
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else printf("Ouch! Something was wrong...");
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fgets(comments, 200, objfile);
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fgets(comments, 200, objFile);
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} break;
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default: break;
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@@ -581,51 +581,51 @@ Model LoadModel(const char *fileName)
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int countMaxVertex = 0;
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rewind(objfile);
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rewind(objFile);
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while(!feof(objfile))
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while(!feof(objFile))
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{
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fscanf(objfile, "%c", &dataType);
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fscanf(objFile, "%c", &dataType);
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switch(dataType)
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{
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case '#':
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{
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fgets(comments, 200, objfile);
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fgets(comments, 200, objFile);
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} break;
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case 'v':
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{
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fscanf(objfile, "%c", &dataType);
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fscanf(objFile, "%c", &dataType);
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if (dataType == 't') // Read texCoord
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{
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float useless = 0;
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fscanf(objfile, "%f %f %f", &midTexCoords[countTexCoords].x, &midTexCoords[countTexCoords].y, &useless);
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fscanf(objFile, "%f %f %f", &midTexCoords[countTexCoords].x, &midTexCoords[countTexCoords].y, &useless);
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countTexCoords++;
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fscanf(objfile, "%c", &dataType);
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fscanf(objFile, "%c", &dataType);
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}
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else if (dataType == 'n') // Read normals
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{
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fscanf(objfile, "%f %f %f", &midNormals[countNormals].x, &midNormals[countNormals].y, &midNormals[countNormals].z );
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fscanf(objFile, "%f %f %f", &midNormals[countNormals].x, &midNormals[countNormals].y, &midNormals[countNormals].z );
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countNormals++;
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fscanf(objfile, "%c", &dataType);
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fscanf(objFile, "%c", &dataType);
|
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}
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else // Read vertex
|
||||
{
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fscanf(objfile, "%f %f %f", &midVertices[countVertex].x, &midVertices[countVertex].y, &midVertices[countVertex].z );
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fscanf(objFile, "%f %f %f", &midVertices[countVertex].x, &midVertices[countVertex].y, &midVertices[countVertex].z );
|
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countVertex++;
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||||
fscanf(objfile, "%c", &dataType);
|
||||
fscanf(objFile, "%c", &dataType);
|
||||
}
|
||||
} break;
|
||||
case 'f':
|
||||
{
|
||||
int vNum, vtNum, vnNum;
|
||||
fscanf(objfile, "%c", &dataType);
|
||||
fscanf(objfile, "%i/%i/%i", &vNum, &vtNum, &vnNum);
|
||||
fscanf(objFile, "%c", &dataType);
|
||||
fscanf(objFile, "%i/%i/%i", &vNum, &vtNum, &vnNum);
|
||||
|
||||
model.vertices[countMaxVertex] = midVertices[vNum-1];
|
||||
model.normals[countMaxVertex] = midNormals[vnNum-1];
|
||||
@@ -633,7 +633,7 @@ Model LoadModel(const char *fileName)
|
||||
model.texcoords[countMaxVertex].y = -midTexCoords[vtNum-1].y;
|
||||
countMaxVertex++;
|
||||
|
||||
fscanf(objfile, "%i/%i/%i", &vNum, &vtNum, &vnNum);
|
||||
fscanf(objFile, "%i/%i/%i", &vNum, &vtNum, &vnNum);
|
||||
|
||||
model.vertices[countMaxVertex] = midVertices[vNum-1];
|
||||
model.normals[countMaxVertex] = midNormals[vnNum-1];
|
||||
@@ -641,7 +641,7 @@ Model LoadModel(const char *fileName)
|
||||
model.texcoords[countMaxVertex].y = -midTexCoords[vtNum-1].y;
|
||||
countMaxVertex++;
|
||||
|
||||
fscanf(objfile, "%i/%i/%i", &vNum, &vtNum, &vnNum);
|
||||
fscanf(objFile, "%i/%i/%i", &vNum, &vtNum, &vnNum);
|
||||
|
||||
model.vertices[countMaxVertex] = midVertices[vNum-1];
|
||||
model.normals[countMaxVertex] = midNormals[vnNum-1];
|
||||
@@ -653,14 +653,13 @@ Model LoadModel(const char *fileName)
|
||||
}
|
||||
}
|
||||
|
||||
fclose(objfile);
|
||||
fclose(objFile);
|
||||
|
||||
return model;
|
||||
}
|
||||
|
||||
// Load a heightmap image as a 3d model
|
||||
// TODO: Just do it...
|
||||
Model LoadHeightmap(Image heightmap, Vector3 resolution)
|
||||
Model LoadHeightmap(Image heightmap, float maxHeight)
|
||||
{
|
||||
Model model;
|
||||
|
||||
@@ -677,15 +676,70 @@ Model LoadHeightmap(Image heightmap, Vector3 resolution)
|
||||
model.normals = (Vector3 *)malloc(model.numVertices * sizeof(Vector3));
|
||||
model.texcoords = (Vector2 *)malloc(model.numVertices * sizeof(Vector2));
|
||||
|
||||
for(int z = 0; z < mapZ; z++)
|
||||
{
|
||||
for(int x = 0; x < mapX; x++)
|
||||
{
|
||||
// TODO: Fill vertices array with data
|
||||
}
|
||||
}
|
||||
int vCounter = 0;
|
||||
int trisCounter = 0;
|
||||
|
||||
//SmoothHeightmap(&model); // TODO: Smooth vertex interpolation
|
||||
float scaleFactor = maxHeight/255; // TODO: Review scaleFactor calculation
|
||||
|
||||
for(int z = 0; z < mapZ-1; z++)
|
||||
{
|
||||
for(int x = 0; x < mapX-1; x++)
|
||||
{
|
||||
// Fill vertices array with data
|
||||
//----------------------------------------------------------
|
||||
|
||||
// one triangle - 3 vertex
|
||||
model.vertices[vCounter].x = x;
|
||||
model.vertices[vCounter].y = GetHeightValue(heightmap.pixels[x + z*mapX])*scaleFactor;
|
||||
model.vertices[vCounter].z = z;
|
||||
|
||||
model.vertices[vCounter+1].x = x;
|
||||
model.vertices[vCounter+1].y = GetHeightValue(heightmap.pixels[x + (z+1)*mapX])*scaleFactor;
|
||||
model.vertices[vCounter+1].z = z+1;
|
||||
|
||||
model.vertices[vCounter+2].x = x+1;
|
||||
model.vertices[vCounter+2].y = GetHeightValue(heightmap.pixels[(x+1) + z*mapX])*scaleFactor;
|
||||
model.vertices[vCounter+2].z = z;
|
||||
|
||||
// another triangle - 3 vertex
|
||||
model.vertices[vCounter+3] = model.vertices[vCounter+2];
|
||||
model.vertices[vCounter+4] = model.vertices[vCounter+1];
|
||||
|
||||
model.vertices[vCounter+5].x = x+1;
|
||||
model.vertices[vCounter+5].y = GetHeightValue(heightmap.pixels[(x+1) + (z+1)*mapX])*scaleFactor;
|
||||
model.vertices[vCounter+5].z = z+1;
|
||||
|
||||
// Fill texcoords array with data
|
||||
//--------------------------------------------------------------
|
||||
model.texcoords[vCounter].x = (float)x / (mapX-1);
|
||||
model.texcoords[vCounter].y = (float)z / (mapZ-1);
|
||||
|
||||
model.texcoords[vCounter+1].x = (float)x / (mapX-1);
|
||||
model.texcoords[vCounter+1].y = (float)(z+1) / (mapZ-1);
|
||||
|
||||
model.texcoords[vCounter+2].x = (float)(x+1) / (mapX-1);
|
||||
model.texcoords[vCounter+2].y = (float)z / (mapZ-1);
|
||||
|
||||
model.texcoords[vCounter+3] = model.texcoords[vCounter+2];
|
||||
model.texcoords[vCounter+4] = model.texcoords[vCounter+1];
|
||||
|
||||
model.texcoords[vCounter+5].x = (float)(x+1) / (mapX-1);
|
||||
model.texcoords[vCounter+5].y = (float)(z+1) / (mapZ-1);
|
||||
|
||||
// Fill normals array with data
|
||||
//--------------------------------------------------------------
|
||||
// TODO: Review normals calculation
|
||||
model.normals[vCounter] = (Vector3){ 0.0f, 1.0f, 0.0f };
|
||||
model.normals[vCounter+1] = (Vector3){ 0.0f, 1.0f, 0.0f };
|
||||
model.normals[vCounter+2] = (Vector3){ 0.0f, 1.0f, 0.0f };
|
||||
model.normals[vCounter+3] = (Vector3){ 0.0f, 1.0f, 0.0f };
|
||||
model.normals[vCounter+4] = (Vector3){ 0.0f, 1.0f, 0.0f };
|
||||
model.normals[vCounter+5] = (Vector3){ 0.0f, 1.0f, 0.0f };
|
||||
|
||||
vCounter += 6;
|
||||
trisCounter += 2;
|
||||
}
|
||||
}
|
||||
|
||||
return model;
|
||||
}
|
||||
@@ -702,6 +756,7 @@ void UnloadModel(Model model)
|
||||
void DrawModel(Model model, Vector3 position, float scale, Color color)
|
||||
{
|
||||
// NOTE: For models we use Vertex Arrays (OpenGL 1.1)
|
||||
//static int rotation = 0;
|
||||
|
||||
glEnableClientState(GL_VERTEX_ARRAY); // Enable vertex array
|
||||
glEnableClientState(GL_TEXTURE_COORD_ARRAY); // Enable texture coords array
|
||||
@@ -725,6 +780,8 @@ void DrawModel(Model model, Vector3 position, float scale, Color color)
|
||||
glDisableClientState(GL_VERTEX_ARRAY); // Disable vertex array
|
||||
glDisableClientState(GL_TEXTURE_COORD_ARRAY); // Disable texture coords array
|
||||
glDisableClientState(GL_NORMAL_ARRAY); // Disable normals array
|
||||
|
||||
//rotation += 10;
|
||||
}
|
||||
|
||||
// Draw a textured model
|
||||
@@ -787,58 +844,8 @@ void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle sourceRec, Vec
|
||||
glDisable(GL_TEXTURE_2D);
|
||||
}
|
||||
|
||||
// Draw a heightmap using a provided image data
|
||||
void DrawHeightmap(Image heightmap, Vector3 centerPos, Vector3 scale, Color color)
|
||||
// Get current vertex y altitude (proportional to pixel colors in grayscale)
|
||||
static float GetHeightValue(Color pixel)
|
||||
{
|
||||
// NOTE: Pixel-data is interpreted as grey-scale (even being a color image)
|
||||
// NOTE: Heightmap resolution will depend on image size (one quad per pixel)
|
||||
|
||||
// TODO: Review how this function works... probably we need:
|
||||
// Model LoadHeightmap(Image heightmap, Vector3 resolution);
|
||||
|
||||
// NOTE: We are allocating and de-allocating vertex data every frame! --> framerate drops 80%! CRAZY!
|
||||
Vector3 *terrainVertex = (Vector3 *)malloc(heightmap.width * heightmap.height * sizeof(Vector3));
|
||||
|
||||
for (int z = 0; z < heightmap.height; z++)
|
||||
{
|
||||
for (int x = 0; x < heightmap.width; x++)
|
||||
{
|
||||
terrainVertex[z*heightmap.height + x].x = (float)(x*scale.x);
|
||||
terrainVertex[z*heightmap.height + x].y = ((float)heightmap.pixels[z*heightmap.height + x].r +
|
||||
(float)heightmap.pixels[z*heightmap.height + x].g +
|
||||
(float)heightmap.pixels[z*heightmap.height + x].b) / 3 * scale.y;
|
||||
terrainVertex[z*heightmap.height + x].z = (float)(-z*scale.z);
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: Texture coordinates and normals computing
|
||||
|
||||
for (int z = 0; z < heightmap.height-1; z++)
|
||||
{
|
||||
glBegin(GL_TRIANGLE_STRIP);
|
||||
for (int x = 0; x < heightmap.width; x++)
|
||||
{
|
||||
glColor3f((float)heightmap.pixels[z*heightmap.height + x].r / 255.0f,
|
||||
(float)heightmap.pixels[z*heightmap.height + x].g / 255.0f,
|
||||
(float)heightmap.pixels[z*heightmap.height + x].b / 255.0f);
|
||||
|
||||
glVertex3f(terrainVertex[z*heightmap.height + x].x, terrainVertex[z*heightmap.height + x].y, terrainVertex[z*heightmap.height + x].z);
|
||||
glVertex3f(terrainVertex[(z+1)*heightmap.height + x].x, terrainVertex[(z+1)*heightmap.height + x].y, terrainVertex[(z+1)*heightmap.height + x].z);
|
||||
}
|
||||
glEnd();
|
||||
}
|
||||
|
||||
free(terrainVertex);
|
||||
}
|
||||
|
||||
void DrawHeightmapEx(Image heightmap, Texture2D texture, Vector3 centerPos, Vector3 scale, Color tint)
|
||||
{
|
||||
glEnable(GL_TEXTURE_2D);
|
||||
|
||||
glBindTexture(GL_TEXTURE_2D, texture.glId);
|
||||
|
||||
// NOTE: No texture coordinates or normals defined at this moment...
|
||||
DrawHeightmap(heightmap, centerPos, scale, tint);
|
||||
|
||||
glDisable(GL_TEXTURE_2D);
|
||||
return (((float)pixel.r + (float)pixel.g + (float)pixel.b)/3);
|
||||
}
|
||||
@@ -65,6 +65,7 @@
|
||||
#define KEY_SPACE 32
|
||||
#define KEY_ESCAPE 256
|
||||
#define KEY_ENTER 257
|
||||
#define KEY_BACKSPACE 259
|
||||
#define KEY_RIGHT 262
|
||||
#define KEY_LEFT 263
|
||||
#define KEY_DOWN 264
|
||||
@@ -278,6 +279,7 @@ bool IsMouseButtonUp(int button); // Detect if a mouse but
|
||||
int GetMouseX(); // Returns mouse position X
|
||||
int GetMouseY(); // Returns mouse position Y
|
||||
Vector2 GetMousePosition(); // Returns mouse position XY
|
||||
int GetMouseWheelMove(); // Returns mouse wheel movement Y
|
||||
|
||||
bool IsGamepadAvailable(int gamepad); // Detect if a gamepad is available
|
||||
Vector2 GetGamepadMovement(int gamepad); // Return axis movement vector for a gamepad
|
||||
@@ -323,7 +325,7 @@ Image LoadImage(const char *fileName);
|
||||
Image LoadImageFromRES(const char *rresName, int resId); // Load an image from rRES file (raylib Resource)
|
||||
Texture2D LoadTexture(const char *fileName); // Load an image as texture into GPU memory
|
||||
Texture2D LoadTextureFromRES(const char *rresName, int resId); // Load an image as texture from rRES file (raylib Resource)
|
||||
Texture2D CreateTexture2D(Image image); // Create a Texture2D from Image data
|
||||
Texture2D CreateTexture(Image image); // Create a Texture2D from Image data
|
||||
void UnloadImage(Image image); // Unload image from CPU memory (RAM)
|
||||
void UnloadTexture(Texture2D texture); // Unload texture from GPU memory
|
||||
|
||||
@@ -370,17 +372,15 @@ void DrawGizmo(Vector3 position, bool orbits);
|
||||
//------------------------------------------------------------------------------------
|
||||
Model LoadModel(const char *fileName); // Load a 3d model (.OBJ)
|
||||
//Model LoadModelFromRES(const char *rresName, int resId); // TODO: Load a 3d model from rRES file (raylib Resource)
|
||||
Model LoadHeightmap(Image heightmap, float maxHeight); // Load a heightmap image as a 3d model
|
||||
void UnloadModel(Model model); // Unload 3d model from memory
|
||||
void DrawModel(Model model, Vector3 position, float scale, Color color); // Draw a model
|
||||
void DrawModelEx(Model model, Texture2D texture, Vector3 position, float scale, Color tint); // Draw a textured model
|
||||
void DrawModelWires(Model model, Vector3 position, float scale, Color color); // Draw a model wires
|
||||
|
||||
// NOTE: The following functions work but are incomplete or require some revision
|
||||
// DrawHeightmap is extremely inefficient and can impact performance up to 60%
|
||||
void DrawBillboard(Camera camera, Texture2D texture, Vector3 basePos, float size, Color tint); // REVIEW: Draw a billboard (raylib 1.x)
|
||||
void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle sourceRec, Vector3 basePos, float size, Color tint); // REVIEW: Draw a billboard (raylib 1.x)
|
||||
void DrawHeightmap(Image heightmap, Vector3 centerPos, Vector3 scale, Color color); // REVIEW: Draw heightmap using image map (raylib 1.x)
|
||||
void DrawHeightmapEx(Image heightmap, Texture2D texture, Vector3 centerPos, Vector3 scale, Color tint); // REVIEW: Draw textured heightmap (raylib 1.x)
|
||||
|
||||
//------------------------------------------------------------------------------------
|
||||
// Audio Loading and Playing Functions (Module: audio)
|
||||
|
||||
514
src/stb_image_write.h
Normal file
514
src/stb_image_write.h
Normal file
@@ -0,0 +1,514 @@
|
||||
/* stbiw-0.92 - public domain - http://nothings.org/stb/stb_image_write.h
|
||||
writes out PNG/BMP/TGA images to C stdio - Sean Barrett 2010
|
||||
no warranty implied; use at your own risk
|
||||
|
||||
|
||||
Before #including,
|
||||
|
||||
#define STB_IMAGE_WRITE_IMPLEMENTATION
|
||||
|
||||
in the file that you want to have the implementation.
|
||||
|
||||
|
||||
ABOUT:
|
||||
|
||||
This header file is a library for writing images to C stdio. It could be
|
||||
adapted to write to memory or a general streaming interface; let me know.
|
||||
|
||||
The PNG output is not optimal; it is 20-50% larger than the file
|
||||
written by a decent optimizing implementation. This library is designed
|
||||
for source code compactness and simplicitly, not optimal image file size
|
||||
or run-time performance.
|
||||
|
||||
USAGE:
|
||||
|
||||
There are three functions, one for each image file format:
|
||||
|
||||
int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
|
||||
int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
|
||||
int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
|
||||
|
||||
Each function returns 0 on failure and non-0 on success.
|
||||
|
||||
The functions create an image file defined by the parameters. The image
|
||||
is a rectangle of pixels stored from left-to-right, top-to-bottom.
|
||||
Each pixel contains 'comp' channels of data stored interleaved with 8-bits
|
||||
per channel, in the following order: 1=L, 2=LA, 3=RGB, 4=RGBA. (L is
|
||||
luminance, i.e. monochrome "color", i.e. grey value.) The rectangle is
|
||||
'w' pixels wide and 'h' pixels tall. The *data pointer points to the
|
||||
first byte of the top-left-most pixel. For PNG, "stride_in_bytes" is
|
||||
the distance in bytes from the first byte of a row of pixels to the
|
||||
first byte of the next row of pixels. Other file formats assume the
|
||||
first byte of the each row of pixels begins immediately after the last
|
||||
byte of the previous row.
|
||||
|
||||
PNG creates output files with the same number of components as the input.
|
||||
The BMP and TGA formats expand Y to RGB in the file format. BMP does not
|
||||
output alpha.
|
||||
|
||||
PNG supports writing rectangles of data even when the bytes storing rows of
|
||||
data are not consecutive in memory (e.g. sub-rectangles of a larger image),
|
||||
by supplying the stride between the beginning of adjacent rows. The other
|
||||
formats do not. (Thus you cannot write an in-memory BMP through the BMP
|
||||
writer, both because it is in BGR order and because it may have padding
|
||||
at the end of the line.)
|
||||
*/
|
||||
|
||||
#ifndef INCLUDE_STB_IMAGE_WRITE_H
|
||||
#define INCLUDE_STB_IMAGE_WRITE_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
|
||||
extern int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
|
||||
extern int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif//INCLUDE_STB_IMAGE_WRITE_H
|
||||
|
||||
#ifdef STB_IMAGE_WRITE_IMPLEMENTATION
|
||||
|
||||
#include <stdarg.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <assert.h>
|
||||
|
||||
typedef unsigned int stbiw_uint32;
|
||||
typedef int stb_image_write_test[sizeof(stbiw_uint32)==4 ? 1 : -1];
|
||||
|
||||
static void writefv(FILE *f, const char *fmt, va_list v)
|
||||
{
|
||||
while (*fmt) {
|
||||
switch (*fmt++) {
|
||||
case ' ': break;
|
||||
case '1': { unsigned char x = (unsigned char) va_arg(v, int); fputc(x,f); break; }
|
||||
case '2': { int x = va_arg(v,int); unsigned char b[2];
|
||||
b[0] = (unsigned char) x; b[1] = (unsigned char) (x>>8);
|
||||
fwrite(b,2,1,f); break; }
|
||||
case '4': { stbiw_uint32 x = va_arg(v,int); unsigned char b[4];
|
||||
b[0]=(unsigned char)x; b[1]=(unsigned char)(x>>8);
|
||||
b[2]=(unsigned char)(x>>16); b[3]=(unsigned char)(x>>24);
|
||||
fwrite(b,4,1,f); break; }
|
||||
default:
|
||||
assert(0);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void write3(FILE *f, unsigned char a, unsigned char b, unsigned char c)
|
||||
{
|
||||
unsigned char arr[3];
|
||||
arr[0] = a, arr[1] = b, arr[2] = c;
|
||||
fwrite(arr, 3, 1, f);
|
||||
}
|
||||
|
||||
static void write_pixels(FILE *f, int rgb_dir, int vdir, int x, int y, int comp, void *data, int write_alpha, int scanline_pad)
|
||||
{
|
||||
unsigned char bg[3] = { 255, 0, 255}, px[3];
|
||||
stbiw_uint32 zero = 0;
|
||||
int i,j,k, j_end;
|
||||
|
||||
if (y <= 0)
|
||||
return;
|
||||
|
||||
if (vdir < 0)
|
||||
j_end = -1, j = y-1;
|
||||
else
|
||||
j_end = y, j = 0;
|
||||
|
||||
for (; j != j_end; j += vdir) {
|
||||
for (i=0; i < x; ++i) {
|
||||
unsigned char *d = (unsigned char *) data + (j*x+i)*comp;
|
||||
if (write_alpha < 0)
|
||||
fwrite(&d[comp-1], 1, 1, f);
|
||||
switch (comp) {
|
||||
case 1:
|
||||
case 2: write3(f, d[0],d[0],d[0]);
|
||||
break;
|
||||
case 4:
|
||||
if (!write_alpha) {
|
||||
// composite against pink background
|
||||
for (k=0; k < 3; ++k)
|
||||
px[k] = bg[k] + ((d[k] - bg[k]) * d[3])/255;
|
||||
write3(f, px[1-rgb_dir],px[1],px[1+rgb_dir]);
|
||||
break;
|
||||
}
|
||||
/* FALLTHROUGH */
|
||||
case 3:
|
||||
write3(f, d[1-rgb_dir],d[1],d[1+rgb_dir]);
|
||||
break;
|
||||
}
|
||||
if (write_alpha > 0)
|
||||
fwrite(&d[comp-1], 1, 1, f);
|
||||
}
|
||||
fwrite(&zero,scanline_pad,1,f);
|
||||
}
|
||||
}
|
||||
|
||||
static int outfile(char const *filename, int rgb_dir, int vdir, int x, int y, int comp, void *data, int alpha, int pad, const char *fmt, ...)
|
||||
{
|
||||
FILE *f;
|
||||
if (y < 0 || x < 0) return 0;
|
||||
f = fopen(filename, "wb");
|
||||
if (f) {
|
||||
va_list v;
|
||||
va_start(v, fmt);
|
||||
writefv(f, fmt, v);
|
||||
va_end(v);
|
||||
write_pixels(f,rgb_dir,vdir,x,y,comp,data,alpha,pad);
|
||||
fclose(f);
|
||||
}
|
||||
return f != NULL;
|
||||
}
|
||||
|
||||
int stbi_write_bmp(char const *filename, int x, int y, int comp, const void *data)
|
||||
{
|
||||
int pad = (-x*3) & 3;
|
||||
return outfile(filename,-1,-1,x,y,comp,(void *) data,0,pad,
|
||||
"11 4 22 4" "4 44 22 444444",
|
||||
'B', 'M', 14+40+(x*3+pad)*y, 0,0, 14+40, // file header
|
||||
40, x,y, 1,24, 0,0,0,0,0,0); // bitmap header
|
||||
}
|
||||
|
||||
int stbi_write_tga(char const *filename, int x, int y, int comp, const void *data)
|
||||
{
|
||||
int has_alpha = !(comp & 1);
|
||||
return outfile(filename, -1,-1, x, y, comp, (void *) data, has_alpha, 0,
|
||||
"111 221 2222 11", 0,0,2, 0,0,0, 0,0,x,y, 24+8*has_alpha, 8*has_alpha);
|
||||
}
|
||||
|
||||
// stretchy buffer; stbi__sbpush() == vector<>::push_back() -- stbi__sbcount() == vector<>::size()
|
||||
#define stbi__sbraw(a) ((int *) (a) - 2)
|
||||
#define stbi__sbm(a) stbi__sbraw(a)[0]
|
||||
#define stbi__sbn(a) stbi__sbraw(a)[1]
|
||||
|
||||
#define stbi__sbneedgrow(a,n) ((a)==0 || stbi__sbn(a)+n >= stbi__sbm(a))
|
||||
#define stbi__sbmaybegrow(a,n) (stbi__sbneedgrow(a,(n)) ? stbi__sbgrow(a,n) : 0)
|
||||
#define stbi__sbgrow(a,n) stbi__sbgrowf((void **) &(a), (n), sizeof(*(a)))
|
||||
|
||||
#define stbi__sbpush(a, v) (stbi__sbmaybegrow(a,1), (a)[stbi__sbn(a)++] = (v))
|
||||
#define stbi__sbcount(a) ((a) ? stbi__sbn(a) : 0)
|
||||
#define stbi__sbfree(a) ((a) ? free(stbi__sbraw(a)),0 : 0)
|
||||
|
||||
static void *stbi__sbgrowf(void **arr, int increment, int itemsize)
|
||||
{
|
||||
int m = *arr ? 2*stbi__sbm(*arr)+increment : increment+1;
|
||||
void *p = realloc(*arr ? stbi__sbraw(*arr) : 0, itemsize * m + sizeof(int)*2);
|
||||
assert(p);
|
||||
if (p) {
|
||||
if (!*arr) ((int *) p)[1] = 0;
|
||||
*arr = (void *) ((int *) p + 2);
|
||||
stbi__sbm(*arr) = m;
|
||||
}
|
||||
return *arr;
|
||||
}
|
||||
|
||||
static unsigned char *stbi__zlib_flushf(unsigned char *data, unsigned int *bitbuffer, int *bitcount)
|
||||
{
|
||||
while (*bitcount >= 8) {
|
||||
stbi__sbpush(data, (unsigned char) *bitbuffer);
|
||||
*bitbuffer >>= 8;
|
||||
*bitcount -= 8;
|
||||
}
|
||||
return data;
|
||||
}
|
||||
|
||||
static int stbi__zlib_bitrev(int code, int codebits)
|
||||
{
|
||||
int res=0;
|
||||
while (codebits--) {
|
||||
res = (res << 1) | (code & 1);
|
||||
code >>= 1;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
static unsigned int stbi__zlib_countm(unsigned char *a, unsigned char *b, int limit)
|
||||
{
|
||||
int i;
|
||||
for (i=0; i < limit && i < 258; ++i)
|
||||
if (a[i] != b[i]) break;
|
||||
return i;
|
||||
}
|
||||
|
||||
static unsigned int stbi__zhash(unsigned char *data)
|
||||
{
|
||||
stbiw_uint32 hash = data[0] + (data[1] << 8) + (data[2] << 16);
|
||||
hash ^= hash << 3;
|
||||
hash += hash >> 5;
|
||||
hash ^= hash << 4;
|
||||
hash += hash >> 17;
|
||||
hash ^= hash << 25;
|
||||
hash += hash >> 6;
|
||||
return hash;
|
||||
}
|
||||
|
||||
#define stbi__zlib_flush() (out = stbi__zlib_flushf(out, &bitbuf, &bitcount))
|
||||
#define stbi__zlib_add(code,codebits) \
|
||||
(bitbuf |= (code) << bitcount, bitcount += (codebits), stbi__zlib_flush())
|
||||
#define stbi__zlib_huffa(b,c) stbi__zlib_add(stbi__zlib_bitrev(b,c),c)
|
||||
// default huffman tables
|
||||
#define stbi__zlib_huff1(n) stbi__zlib_huffa(0x30 + (n), 8)
|
||||
#define stbi__zlib_huff2(n) stbi__zlib_huffa(0x190 + (n)-144, 9)
|
||||
#define stbi__zlib_huff3(n) stbi__zlib_huffa(0 + (n)-256,7)
|
||||
#define stbi__zlib_huff4(n) stbi__zlib_huffa(0xc0 + (n)-280,8)
|
||||
#define stbi__zlib_huff(n) ((n) <= 143 ? stbi__zlib_huff1(n) : (n) <= 255 ? stbi__zlib_huff2(n) : (n) <= 279 ? stbi__zlib_huff3(n) : stbi__zlib_huff4(n))
|
||||
#define stbi__zlib_huffb(n) ((n) <= 143 ? stbi__zlib_huff1(n) : stbi__zlib_huff2(n))
|
||||
|
||||
#define stbi__ZHASH 16384
|
||||
|
||||
unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality)
|
||||
{
|
||||
static unsigned short lengthc[] = { 3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258, 259 };
|
||||
static unsigned char lengtheb[]= { 0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0 };
|
||||
static unsigned short distc[] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 32768 };
|
||||
static unsigned char disteb[] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13 };
|
||||
unsigned int bitbuf=0;
|
||||
int i,j, bitcount=0;
|
||||
unsigned char *out = NULL;
|
||||
unsigned char **hash_table[stbi__ZHASH]; // 64KB on the stack!
|
||||
if (quality < 5) quality = 5;
|
||||
|
||||
stbi__sbpush(out, 0x78); // DEFLATE 32K window
|
||||
stbi__sbpush(out, 0x5e); // FLEVEL = 1
|
||||
stbi__zlib_add(1,1); // BFINAL = 1
|
||||
stbi__zlib_add(1,2); // BTYPE = 1 -- fixed huffman
|
||||
|
||||
for (i=0; i < stbi__ZHASH; ++i)
|
||||
hash_table[i] = NULL;
|
||||
|
||||
i=0;
|
||||
while (i < data_len-3) {
|
||||
// hash next 3 bytes of data to be compressed
|
||||
int h = stbi__zhash(data+i)&(stbi__ZHASH-1), best=3;
|
||||
unsigned char *bestloc = 0;
|
||||
unsigned char **hlist = hash_table[h];
|
||||
int n = stbi__sbcount(hlist);
|
||||
for (j=0; j < n; ++j) {
|
||||
if (hlist[j]-data > i-32768) { // if entry lies within window
|
||||
int d = stbi__zlib_countm(hlist[j], data+i, data_len-i);
|
||||
if (d >= best) best=d,bestloc=hlist[j];
|
||||
}
|
||||
}
|
||||
// when hash table entry is too long, delete half the entries
|
||||
if (hash_table[h] && stbi__sbn(hash_table[h]) == 2*quality) {
|
||||
memcpy(hash_table[h], hash_table[h]+quality, sizeof(hash_table[h][0])*quality);
|
||||
stbi__sbn(hash_table[h]) = quality;
|
||||
}
|
||||
stbi__sbpush(hash_table[h],data+i);
|
||||
|
||||
if (bestloc) {
|
||||
// "lazy matching" - check match at *next* byte, and if it's better, do cur byte as literal
|
||||
h = stbi__zhash(data+i+1)&(stbi__ZHASH-1);
|
||||
hlist = hash_table[h];
|
||||
n = stbi__sbcount(hlist);
|
||||
for (j=0; j < n; ++j) {
|
||||
if (hlist[j]-data > i-32767) {
|
||||
int e = stbi__zlib_countm(hlist[j], data+i+1, data_len-i-1);
|
||||
if (e > best) { // if next match is better, bail on current match
|
||||
bestloc = NULL;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (bestloc) {
|
||||
int d = data+i - bestloc; // distance back
|
||||
assert(d <= 32767 && best <= 258);
|
||||
for (j=0; best > lengthc[j+1]-1; ++j);
|
||||
stbi__zlib_huff(j+257);
|
||||
if (lengtheb[j]) stbi__zlib_add(best - lengthc[j], lengtheb[j]);
|
||||
for (j=0; d > distc[j+1]-1; ++j);
|
||||
stbi__zlib_add(stbi__zlib_bitrev(j,5),5);
|
||||
if (disteb[j]) stbi__zlib_add(d - distc[j], disteb[j]);
|
||||
i += best;
|
||||
} else {
|
||||
stbi__zlib_huffb(data[i]);
|
||||
++i;
|
||||
}
|
||||
}
|
||||
// write out final bytes
|
||||
for (;i < data_len; ++i)
|
||||
stbi__zlib_huffb(data[i]);
|
||||
stbi__zlib_huff(256); // end of block
|
||||
// pad with 0 bits to byte boundary
|
||||
while (bitcount)
|
||||
stbi__zlib_add(0,1);
|
||||
|
||||
for (i=0; i < stbi__ZHASH; ++i)
|
||||
(void) stbi__sbfree(hash_table[i]);
|
||||
|
||||
{
|
||||
// compute adler32 on input
|
||||
unsigned int i=0, s1=1, s2=0, blocklen = data_len % 5552;
|
||||
int j=0;
|
||||
while (j < data_len) {
|
||||
for (i=0; i < blocklen; ++i) s1 += data[j+i], s2 += s1;
|
||||
s1 %= 65521, s2 %= 65521;
|
||||
j += blocklen;
|
||||
blocklen = 5552;
|
||||
}
|
||||
stbi__sbpush(out, (unsigned char) (s2 >> 8));
|
||||
stbi__sbpush(out, (unsigned char) s2);
|
||||
stbi__sbpush(out, (unsigned char) (s1 >> 8));
|
||||
stbi__sbpush(out, (unsigned char) s1);
|
||||
}
|
||||
*out_len = stbi__sbn(out);
|
||||
// make returned pointer freeable
|
||||
memmove(stbi__sbraw(out), out, *out_len);
|
||||
return (unsigned char *) stbi__sbraw(out);
|
||||
}
|
||||
|
||||
unsigned int stbi__crc32(unsigned char *buffer, int len)
|
||||
{
|
||||
static unsigned int crc_table[256];
|
||||
unsigned int crc = ~0u;
|
||||
int i,j;
|
||||
if (crc_table[1] == 0)
|
||||
for(i=0; i < 256; i++)
|
||||
for (crc_table[i]=i, j=0; j < 8; ++j)
|
||||
crc_table[i] = (crc_table[i] >> 1) ^ (crc_table[i] & 1 ? 0xedb88320 : 0);
|
||||
for (i=0; i < len; ++i)
|
||||
crc = (crc >> 8) ^ crc_table[buffer[i] ^ (crc & 0xff)];
|
||||
return ~crc;
|
||||
}
|
||||
|
||||
#define stbi__wpng4(o,a,b,c,d) ((o)[0]=(unsigned char)(a),(o)[1]=(unsigned char)(b),(o)[2]=(unsigned char)(c),(o)[3]=(unsigned char)(d),(o)+=4)
|
||||
#define stbi__wp32(data,v) stbi__wpng4(data, (v)>>24,(v)>>16,(v)>>8,(v));
|
||||
#define stbi__wptag(data,s) stbi__wpng4(data, s[0],s[1],s[2],s[3])
|
||||
|
||||
static void stbi__wpcrc(unsigned char **data, int len)
|
||||
{
|
||||
unsigned int crc = stbi__crc32(*data - len - 4, len+4);
|
||||
stbi__wp32(*data, crc);
|
||||
}
|
||||
|
||||
static unsigned char stbi__paeth(int a, int b, int c)
|
||||
{
|
||||
int p = a + b - c, pa = abs(p-a), pb = abs(p-b), pc = abs(p-c);
|
||||
if (pa <= pb && pa <= pc) return (unsigned char) a;
|
||||
if (pb <= pc) return (unsigned char) b;
|
||||
return (unsigned char) c;
|
||||
}
|
||||
|
||||
unsigned char *stbi_write_png_to_mem(unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len)
|
||||
{
|
||||
int ctype[5] = { -1, 0, 4, 2, 6 };
|
||||
unsigned char sig[8] = { 137,80,78,71,13,10,26,10 };
|
||||
unsigned char *out,*o, *filt, *zlib;
|
||||
signed char *line_buffer;
|
||||
int i,j,k,p,zlen;
|
||||
|
||||
if (stride_bytes == 0)
|
||||
stride_bytes = x * n;
|
||||
|
||||
filt = (unsigned char *) malloc((x*n+1) * y); if (!filt) return 0;
|
||||
line_buffer = (signed char *) malloc(x * n); if (!line_buffer) { free(filt); return 0; }
|
||||
for (j=0; j < y; ++j) {
|
||||
static int mapping[] = { 0,1,2,3,4 };
|
||||
static int firstmap[] = { 0,1,0,5,6 };
|
||||
int *mymap = j ? mapping : firstmap;
|
||||
int best = 0, bestval = 0x7fffffff;
|
||||
for (p=0; p < 2; ++p) {
|
||||
for (k= p?best:0; k < 5; ++k) {
|
||||
int type = mymap[k],est=0;
|
||||
unsigned char *z = pixels + stride_bytes*j;
|
||||
for (i=0; i < n; ++i)
|
||||
switch (type) {
|
||||
case 0: line_buffer[i] = z[i]; break;
|
||||
case 1: line_buffer[i] = z[i]; break;
|
||||
case 2: line_buffer[i] = z[i] - z[i-stride_bytes]; break;
|
||||
case 3: line_buffer[i] = z[i] - (z[i-stride_bytes]>>1); break;
|
||||
case 4: line_buffer[i] = (signed char) (z[i] - stbi__paeth(0,z[i-stride_bytes],0)); break;
|
||||
case 5: line_buffer[i] = z[i]; break;
|
||||
case 6: line_buffer[i] = z[i]; break;
|
||||
}
|
||||
for (i=n; i < x*n; ++i) {
|
||||
switch (type) {
|
||||
case 0: line_buffer[i] = z[i]; break;
|
||||
case 1: line_buffer[i] = z[i] - z[i-n]; break;
|
||||
case 2: line_buffer[i] = z[i] - z[i-stride_bytes]; break;
|
||||
case 3: line_buffer[i] = z[i] - ((z[i-n] + z[i-stride_bytes])>>1); break;
|
||||
case 4: line_buffer[i] = z[i] - stbi__paeth(z[i-n], z[i-stride_bytes], z[i-stride_bytes-n]); break;
|
||||
case 5: line_buffer[i] = z[i] - (z[i-n]>>1); break;
|
||||
case 6: line_buffer[i] = z[i] - stbi__paeth(z[i-n], 0,0); break;
|
||||
}
|
||||
}
|
||||
if (p) break;
|
||||
for (i=0; i < x*n; ++i)
|
||||
est += abs((signed char) line_buffer[i]);
|
||||
if (est < bestval) { bestval = est; best = k; }
|
||||
}
|
||||
}
|
||||
// when we get here, best contains the filter type, and line_buffer contains the data
|
||||
filt[j*(x*n+1)] = (unsigned char) best;
|
||||
memcpy(filt+j*(x*n+1)+1, line_buffer, x*n);
|
||||
}
|
||||
free(line_buffer);
|
||||
zlib = stbi_zlib_compress(filt, y*( x*n+1), &zlen, 8); // increase 8 to get smaller but use more memory
|
||||
free(filt);
|
||||
if (!zlib) return 0;
|
||||
|
||||
// each tag requires 12 bytes of overhead
|
||||
out = (unsigned char *) malloc(8 + 12+13 + 12+zlen + 12);
|
||||
if (!out) return 0;
|
||||
*out_len = 8 + 12+13 + 12+zlen + 12;
|
||||
|
||||
o=out;
|
||||
memcpy(o,sig,8); o+= 8;
|
||||
stbi__wp32(o, 13); // header length
|
||||
stbi__wptag(o, "IHDR");
|
||||
stbi__wp32(o, x);
|
||||
stbi__wp32(o, y);
|
||||
*o++ = 8;
|
||||
*o++ = (unsigned char) ctype[n];
|
||||
*o++ = 0;
|
||||
*o++ = 0;
|
||||
*o++ = 0;
|
||||
stbi__wpcrc(&o,13);
|
||||
|
||||
stbi__wp32(o, zlen);
|
||||
stbi__wptag(o, "IDAT");
|
||||
memcpy(o, zlib, zlen); o += zlen; free(zlib);
|
||||
stbi__wpcrc(&o, zlen);
|
||||
|
||||
stbi__wp32(o,0);
|
||||
stbi__wptag(o, "IEND");
|
||||
stbi__wpcrc(&o,0);
|
||||
|
||||
assert(o == out + *out_len);
|
||||
|
||||
return out;
|
||||
}
|
||||
|
||||
int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes)
|
||||
{
|
||||
FILE *f;
|
||||
int len;
|
||||
unsigned char *png = stbi_write_png_to_mem((unsigned char *) data, stride_bytes, x, y, comp, &len);
|
||||
if (!png) return 0;
|
||||
f = fopen(filename, "wb");
|
||||
if (!f) { free(png); return 0; }
|
||||
fwrite(png, 1, len, f);
|
||||
fclose(f);
|
||||
free(png);
|
||||
return 1;
|
||||
}
|
||||
#endif // STB_IMAGE_WRITE_IMPLEMENTATION
|
||||
|
||||
/* Revision history
|
||||
|
||||
0.92 (2010-08-01)
|
||||
casts to unsigned char to fix warnings
|
||||
0.91 (2010-07-17)
|
||||
first public release
|
||||
0.90 first internal release
|
||||
*/
|
||||
@@ -611,7 +611,7 @@ static SpriteFont LoadRBMF(const char *fileName)
|
||||
|
||||
printf("Image reconstructed correctly... now converting it to texture...");
|
||||
|
||||
spriteFont.texture = CreateTexture2D(image);
|
||||
spriteFont.texture = CreateTexture(image);
|
||||
|
||||
UnloadImage(image); // Unload image data
|
||||
|
||||
|
||||
@@ -259,7 +259,7 @@ Texture2D LoadTextureFromRES(const char *rresName, int resId)
|
||||
Texture2D texture;
|
||||
|
||||
Image image = LoadImageFromRES(rresName, resId);
|
||||
texture = CreateTexture2D(image);
|
||||
texture = CreateTexture(image);
|
||||
|
||||
return texture;
|
||||
}
|
||||
@@ -283,7 +283,7 @@ Texture2D LoadTextureEx(const char *fileName, bool createPOT, bool mipmaps)
|
||||
|
||||
// Create a Texture2D from Image data
|
||||
// NOTE: Image is not unloaded, it should be done manually...
|
||||
Texture2D CreateTexture2D(Image image)
|
||||
Texture2D CreateTexture(Image image)
|
||||
{
|
||||
Texture2D texture;
|
||||
|
||||
|
||||
BIN
tools/rrem.exe
BIN
tools/rrem.exe
Binary file not shown.
Reference in New Issue
Block a user