mirror of https://github.com/axmolengine/axmol.git
128 lines
3.2 KiB
C
128 lines
3.2 KiB
C
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#include "glfw3ext_internal.h"
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#include <string.h>
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#include <stdlib.h>
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#if defined(_MSC_VER)
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#include <malloc.h>
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#endif
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GLFWXconfig _glfwx;
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GLFWbool _glfwxInitialized;
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static HANDLE internalCreateFileMapping(uint64_t size)
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{
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return CreateFileMappingW(
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NULL,
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NULL,
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PAGE_READWRITE,
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size >> 32,
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size & 0x00000000ffffffff,
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NULL);
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}
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GLFWAPI int glfwxInit(void)
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{
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if (_glfwxInitialized)
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return GLFW_TRUE;
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memset(&_glfwx, 0, sizeof(_glfwx));
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_glfwx.wglvi.msimg32 = LoadLibrary(TEXT("msimg32.dll"));
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if (_glfwx.wglvi.msimg32)
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{
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_glfwx.wglvi.alphaBlend = (GLFWXalphaBlendFunc)GetProcAddress(_glfwx.wglvi.msimg32, "AlphaBlend");
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}
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_glfwx.wglvi.screenW = GetSystemMetrics(SM_CXSCREEN);
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_glfwx.wglvi.screenH = GetSystemMetrics(SM_CYSCREEN);
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uint64_t size = _glfwx.wglvi.screenW * _glfwx.wglvi.screenH * 4;
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double KB = (double)size / (1024);
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double MB = KB / (1024);
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// _glfwx.wglvi.hSectionBackDIB = internalCreateFileMapping(size);
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_glfwx.wglvi.hSectionGLDIB = internalCreateFileMapping(size);
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_glfwxInitialized = GLFW_TRUE;
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if (!glfwInit())
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glfwxTerminate();
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return _glfwxInitialized;
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}
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GLFWAPI void glfwxTerminate(void)
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{
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if (!_glfwxInitialized)
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return;
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if (_glfwx.wglvi.hSectionGLDIB)
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CloseHandle(_glfwx.wglvi.hSectionGLDIB);
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if (_glfwx.wglvi.dcBackground)
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DeleteDC(_glfwx.wglvi.dcBackground);
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if (_glfwx.wglvi.unloadImage){
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_glfwx.wglvi.unloadImage(_glfwx.wglvi.pvImage);
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}
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if (_glfwx.wglvi.msimg32)
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FreeLibrary(_glfwx.wglvi.msimg32);
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memset(&_glfwx, 0, sizeof(_glfwx));
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glfwTerminate();
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_glfwxInitialized = GLFW_FALSE;
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}
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// Return the maxiumum of the specified values
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//
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static int Max(int a, int b)
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{
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return (a > b) ? a : b;
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW public API //////
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//////////////////////////////////////////////////////////////////////////
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GLFWAPI void glfwxSetParent(HWND hwndParent)
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{
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_glfwx.hwndGLParent = hwndParent;
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}
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GLFWAPI void glfwxSetBackgroundDriver(GLFWXloadImagefun imageLoader, GLFWXdrawImagefun imageDrawer, GLFWXunloadImagefun imageUnloader)
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{
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if (!_glfwxInitialized)
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return;
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_glfwx.wglvi.loadImage = imageLoader;
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_glfwx.wglvi.drawImage = imageDrawer;
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_glfwx.wglvi.unloadImage = imageUnloader;
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/*if (!_glfwx.wglvi.irregularEnabled) {
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int bits = _glfw.hints.redBits + _glfw.hints.blueBits + _glfw.hints.greenBits + _glfw.hints.alphaBits;
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HDC hdcGL = _glfwxCreateGLSurfaceDIB(_glfwx.wglvi.screenW, _glfwx.wglvi.screenH, bits);
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assert(hdcGL);
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_glfwx.wglvi.hdcGL = hdcGL;
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}*/
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}
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// unused ?
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// GLFWAPI void glfwxSetWindowPos(GLFWwindow* handle, int xpos, int ypos, int width, int height)
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// {
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// extern DWORD getWindowStyle(const _GLFWwindow* window);
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// extern DWORD getWindowExStyle(const _GLFWwindow* window);
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//
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// _GLFWwindow* window = (_GLFWwindow*)handle;
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// assert(window != NULL);
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//
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// RECT rect = { xpos, ypos, width, height };
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// AdjustWindowRectEx(&rect, getWindowStyle(window),
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// FALSE, getWindowExStyle(window));
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// SetWindowPos(window->win32.handle, NULL, rect.left, rect.top,
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// rect.right - rect.left, rect.bottom - rect.top,
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// SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOOWNERZORDER);
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// }
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