Mercurial > sdl-ios-xcode

diff src/video/win32/SDL_gdirender.c @ 1920:8a162bfdc838

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Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. OpenGL renderer in progress
author Sam Lantinga <slouken@libsdl.org>
date Sat, 22 Jul 2006 08:33:18 +0000
parents 092bd3a019c5
children 69217fdd2c0a
line wrap: on
line diff
--- a/src/video/win32/SDL_gdirender.c	Wed Jul 19 08:46:57 2006 +0000
+++ b/src/video/win32/SDL_gdirender.c	Sat Jul 22 08:33:18 2006 +0000
@@ -142,20 +142,18 @@
     HBITMAP hbm;
     int i, n;
 
-    renderer = (SDL_Renderer *) SDL_malloc(sizeof(*renderer));
+    renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
     if (!renderer) {
         SDL_OutOfMemory();
         return NULL;
     }
-    SDL_zerop(renderer);
 
-    data = (GDI_RenderData *) SDL_malloc(sizeof(*data));
+    data = (GDI_RenderData *) SDL_calloc(1, sizeof(*data));
     if (!data) {
         GDI_DestroyRenderer(renderer);
         SDL_OutOfMemory();
         return NULL;
     }
-    SDL_zerop(data);
 
     renderer->CreateTexture = GDI_CreateTexture;
     renderer->QueryTexturePixels = GDI_QueryTexturePixels;
@@ -183,13 +181,12 @@
 
     /* Fill in the compatible bitmap info */
     bmi_size = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
-    data->bmi = (LPBITMAPINFO) SDL_malloc(bmi_size);
+    data->bmi = (LPBITMAPINFO) SDL_calloc(1, bmi_size);
     if (!data->bmi) {
         GDI_DestroyRenderer(renderer);
         SDL_OutOfMemory();
         return NULL;
     }
-    SDL_memset(data->bmi, 0, bmi_size);
     data->bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
 
     hbm = CreateCompatibleBitmap(data->window_hdc, 1, 1);
@@ -241,12 +238,11 @@
     SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
     GDI_TextureData *data;
 
-    data = (GDI_TextureData *) SDL_malloc(sizeof(*data));
+    data = (GDI_TextureData *) SDL_calloc(1, sizeof(*data));
     if (!data) {
         SDL_OutOfMemory();
         return -1;
     }
-    SDL_zerop(data);
 
     texture->driverdata = data;
 
@@ -268,13 +264,12 @@
         LPBITMAPINFO bmi;
 
         bmi_size = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
-        bmi = (LPBITMAPINFO) SDL_malloc(bmi_size);
+        bmi = (LPBITMAPINFO) SDL_calloc(1, bmi_size);
         if (!bmi) {
             GDI_DestroyTexture(renderer, texture);
             SDL_OutOfMemory();
             return -1;
         }
-        SDL_memset(bmi, 0, bmi_size);
         bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
         bmi->bmiHeader.biWidth = texture->w;
         bmi->bmiHeader.biHeight = -texture->h;  /* topdown bitmap */