SDL_nullframebuffer.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#if SDL_VIDEO_DRIVER_DUMMY
#include "../SDL_sysvideo.h"
#include "SDL_nullframebuffer_c.h"
#define DUMMY_SURFACE "_SDL_DummySurface"
int SDL_DUMMY_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch)
{
SDL_Surface *surface;
const Uint32 surface_format = SDL_PIXELFORMAT_RGB888;
int w, h;
int bpp;
Uint32 Rmask, Gmask, Bmask, Amask;
/* Free the old framebuffer surface */
surface = (SDL_Surface *) SDL_GetWindowData(window, DUMMY_SURFACE);
SDL_FreeSurface(surface);
/* Create a new one */
SDL_PixelFormatEnumToMasks(surface_format, &bpp, &Rmask, &Gmask, &Bmask, &Amask);
SDL_GetWindowSize(window, &w, &h);
surface = SDL_CreateRGBSurface(0, w, h, bpp, Rmask, Gmask, Bmask, Amask);
if (!surface) {
return -1;
}
/* Save the info and return! */
SDL_SetWindowData(window, DUMMY_SURFACE, surface);
*format = surface_format;
*pixels = surface->pixels;
*pitch = surface->pitch;
return 0;
}
int SDL_DUMMY_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects)
{
static int frame_number;
SDL_Surface *surface;
surface = (SDL_Surface *) SDL_GetWindowData(window, DUMMY_SURFACE);
if (!surface) {
return SDL_SetError("Couldn't find dummy surface for window");
}
/* Send the data to the display */
if (SDL_getenv("SDL_VIDEO_DUMMY_SAVE_FRAMES")) {
char file[128];
SDL_snprintf(file, sizeof(file), "SDL_window%d-%8.8d.bmp",
SDL_GetWindowID(window), ++frame_number);
SDL_SaveBMP(surface, file);
}
return 0;
}
void SDL_DUMMY_DestroyWindowFramebuffer(_THIS, SDL_Window * window)
{
SDL_Surface *surface;
surface = (SDL_Surface *) SDL_SetWindowData(window, DUMMY_SURFACE, NULL);
SDL_FreeSurface(surface);
}
#endif /* SDL_VIDEO_DRIVER_DUMMY */
/* vi: set ts=4 sw=4 expandtab: */
format
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Definition: SDL_opengl.h:1565
SDL_GetWindowData
#define SDL_GetWindowData
Definition: SDL_dynapi_overrides.h:527
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_GetWindowID
#define SDL_GetWindowID
Definition: SDL_dynapi_overrides.h:520
window
SDL_Window * window
Definition: testautomation_render.c:26
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:69
SDL_SaveBMP
#define SDL_SaveBMP(surface, file)
Definition: SDL_surface.h:199
pixels
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1565
SDL_PIXELFORMAT_RGB888
Definition: SDL_pixels.h:235
SDL_SetWindowData
#define SDL_SetWindowData
Definition: SDL_dynapi_overrides.h:526
SDL_GetWindowSize
#define SDL_GetWindowSize
Definition: SDL_dynapi_overrides.h:531
SDL_nullframebuffer_c.h
SDL_DUMMY_DestroyWindowFramebuffer
void SDL_DUMMY_DestroyWindowFramebuffer(_THIS, SDL_Window *window)
SDL_DUMMY_UpdateWindowFramebuffer
int SDL_DUMMY_UpdateWindowFramebuffer(_THIS, SDL_Window *window, const SDL_Rect *rects, int numrects)
SDL_Surface::pixels
void * pixels
Definition: SDL_surface.h:75
SDL_FreeSurface
#define SDL_FreeSurface
Definition: SDL_dynapi_overrides.h:450
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_PixelFormatEnumToMasks
#define SDL_PixelFormatEnumToMasks
Definition: SDL_dynapi_overrides.h:284
SDL_getenv
#define SDL_getenv
Definition: SDL_dynapi_overrides.h:384
NULL
#define NULL
Definition: begin_code.h:143
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:36
SDL_CreateRGBSurface
#define SDL_CreateRGBSurface
Definition: SDL_dynapi_overrides.h:448
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:71
rects
SDL_Rect rects[MAX_RECTS]
Definition: testintersections.c:129
SDL_Surface::pitch
int pitch
Definition: SDL_surface.h:74
SDL_snprintf
#define SDL_snprintf
Definition: SDL_dynapi_overrides.h:46
w
GLubyte GLubyte GLubyte GLubyte w
Definition: SDL_opengl_glext.h:731
h
GLfloat GLfloat GLfloat GLfloat h
Definition: SDL_opengl_glext.h:1946
SDL_DUMMY_CreateWindowFramebuffer
int SDL_DUMMY_CreateWindowFramebuffer(_THIS, SDL_Window *window, Uint32 *format, void **pixels, int *pitch)
SDL_Rect
A rectangle, with the origin at the upper left.
Definition: SDL_rect.h:64