SDL_render_sw.c File Reference

#include "SDL_config.h"
#include "../SDL_sysrender.h"
#include "SDL_render_sw_c.h"
#include "SDL_hints.h"
#include "SDL_draw.h"
#include "SDL_blendfillrect.h"
#include "SDL_blendline.h"
#include "SDL_blendpoint.h"
#include "SDL_drawline.h"
#include "SDL_drawpoint.h"
#include "SDL_rotate.h"

Go to the source code of this file.

Functions
static int	GetScaleQuality (void)
static SDL_Surface *	SW_ActivateRenderer (SDL_Renderer *renderer)
static SDL_Renderer *	SW_CreateRenderer (SDL_Window *window, Uint32 flags)
SDL_Renderer *	SW_CreateRendererForSurface (SDL_Surface *surface)
static int	SW_CreateTexture (SDL_Renderer *renderer, SDL_Texture *texture)
static void	SW_DestroyRenderer (SDL_Renderer *renderer)
static void	SW_DestroyTexture (SDL_Renderer *renderer, SDL_Texture *texture)
static int	SW_GetOutputSize (SDL_Renderer *renderer, int *w, int *h)
static int	SW_LockTexture (SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, void **pixels, int *pitch)
static int	SW_RenderClear (SDL_Renderer *renderer)
static int	SW_RenderCopy (SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect, const SDL_FRect *dstrect)
static int	SW_RenderCopyEx (SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect, const SDL_FRect *dstrect, const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
static int	SW_RenderDrawLines (SDL_Renderer *renderer, const SDL_FPoint *points, int count)
static int	SW_RenderDrawPoints (SDL_Renderer *renderer, const SDL_FPoint *points, int count)
static int	SW_RenderFillRects (SDL_Renderer *renderer, const SDL_FRect *rects, int count)
static void	SW_RenderPresent (SDL_Renderer *renderer)
static int	SW_RenderReadPixels (SDL_Renderer *renderer, const SDL_Rect *rect, Uint32 format, void *pixels, int pitch)
static int	SW_SetRenderTarget (SDL_Renderer *renderer, SDL_Texture *texture)
static int	SW_SetTextureAlphaMod (SDL_Renderer *renderer, SDL_Texture *texture)
static int	SW_SetTextureBlendMode (SDL_Renderer *renderer, SDL_Texture *texture)
static int	SW_SetTextureColorMod (SDL_Renderer *renderer, SDL_Texture *texture)
static void	SW_UnlockTexture (SDL_Renderer *renderer, SDL_Texture *texture)
static int	SW_UpdateClipRect (SDL_Renderer *renderer)
static int	SW_UpdateTexture (SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, const void *pixels, int pitch)
static int	SW_UpdateViewport (SDL_Renderer *renderer)
static void	SW_WindowEvent (SDL_Renderer *renderer, const SDL_WindowEvent *event)

Variables
SDL_RenderDriver	SW_RenderDriver

Function Documentation

static int GetScaleQuality ( void  )

static

Definition at line 562 of file SDL_render_sw.c.

References SDL_GetHint(), SDL_HINT_RENDER_SCALE_QUALITY, and SDL_strcasecmp().

Referenced by SW_RenderCopyEx().

static SDL_Surface* SW_ActivateRenderer ( SDL_Renderer *  renderer )

static

Definition at line 106 of file SDL_render_sw.c.

References SDL_Renderer::driverdata, if(), SDL_GetWindowSurface(), SW_UpdateClipRect(), SW_UpdateViewport(), and SDL_Renderer::window.

Referenced by SW_CreateRendererForSurface(), SW_GetOutputSize(), SW_RenderClear(), SW_RenderCopy(), SW_RenderCopyEx(), SW_RenderDrawLines(), SW_RenderDrawPoints(), SW_RenderFillRects(), and SW_RenderReadPixels().

SDL_Renderer * SW_CreateRenderer ( SDL_Window *  window, Uint32  flags  )

static

Definition at line 181 of file SDL_render_sw.c.

References NULL, SDL_GetWindowSurface(), and SW_CreateRendererForSurface().

SDL_Renderer* SW_CreateRendererForSurface

(

SDL_Surface *

surface

)

Definition at line 126 of file SDL_render_sw.c.

References SDL_Renderer::CreateTexture, SDL_Renderer::DestroyRenderer, SDL_Renderer::DestroyTexture, SDL_Renderer::driverdata, SDL_Renderer::GetOutputSize, SDL_Renderer::info, SDL_RenderDriver::info, SDL_Renderer::LockTexture, NULL, SDL_Renderer::RenderClear, SDL_Renderer::RenderCopy, SDL_Renderer::RenderCopyEx, SDL_Renderer::RenderDrawLines, SDL_Renderer::RenderDrawPoints, SDL_Renderer::RenderFillRects, SDL_Renderer::RenderPresent, SDL_Renderer::RenderReadPixels, SDL_calloc(), SDL_OutOfMemory, SDL_SetError(), SDL_Renderer::SetRenderTarget, SDL_Renderer::SetTextureAlphaMod, SDL_Renderer::SetTextureBlendMode, SDL_Renderer::SetTextureColorMod, SW_ActivateRenderer(), SW_CreateTexture(), SW_DestroyRenderer(), SW_DestroyTexture(), SW_GetOutputSize(), SW_LockTexture(), SW_RenderClear(), SW_RenderCopy(), SW_RenderCopyEx(), SW_RenderDrawLines(), SW_RenderDrawPoints(), SW_RenderFillRects(), SW_RenderPresent(), SW_RenderReadPixels(), SW_SetRenderTarget(), SW_SetTextureAlphaMod(), SW_SetTextureBlendMode(), SW_SetTextureColorMod(), SW_UnlockTexture(), SW_UpdateClipRect(), SW_UpdateTexture(), SW_UpdateViewport(), SW_WindowEvent(), SDL_Renderer::UnlockTexture, SDL_Renderer::UpdateClipRect, SDL_Renderer::UpdateTexture, SDL_Renderer::UpdateViewport, and SDL_Renderer::WindowEvent.

Referenced by SDL_CreateSoftwareRenderer(), and SW_CreateRenderer().

static int SW_CreateTexture ( SDL_Renderer *  renderer, SDL_Texture *  texture  )

static

Definition at line 223 of file SDL_render_sw.c.

References SDL_Texture::a, SDL_Texture::access, SDL_Texture::b, SDL_Texture::blendMode, SDL_Texture::driverdata, SDL_Texture::format, SDL_Texture::g, SDL_Texture::h, SDL_Texture::r, SDL_CreateRGBSurface(), SDL_PixelFormatEnumToMasks(), SDL_SetError(), SDL_SetSurfaceAlphaMod(), SDL_SetSurfaceBlendMode(), SDL_SetSurfaceColorMod(), SDL_SetSurfaceRLE(), SDL_TEXTUREACCESS_STATIC, and SDL_Texture::w.

Referenced by SW_CreateRendererForSurface().

static void SW_DestroyRenderer ( SDL_Renderer *  renderer )

static

Definition at line 717 of file SDL_render_sw.c.

References SDL_Renderer::driverdata, and SDL_free().

Referenced by SW_CreateRendererForSurface().

static void SW_DestroyTexture ( SDL_Renderer *  renderer, SDL_Texture *  texture  )

static

Definition at line 709 of file SDL_render_sw.c.

References SDL_Texture::driverdata, and SDL_FreeSurface().

Referenced by SW_CreateRendererForSurface().

static int SW_GetOutputSize ( SDL_Renderer *  renderer, int *  w, int *  h  )

static

Definition at line 204 of file SDL_render_sw.c.

References SDL_Surface::h, SDL_SetError(), SW_ActivateRenderer(), and SDL_Surface::w.

Referenced by SW_CreateRendererForSurface().

static int SW_LockTexture ( SDL_Renderer *  renderer, SDL_Texture *  texture, const SDL_Rect *  rect, void **  pixels, int *  pitch  )

static

Definition at line 300 of file SDL_render_sw.c.

References SDL_PixelFormat::BytesPerPixel, SDL_Texture::driverdata, SDL_Surface::format, SDL_Surface::pitch, SDL_Surface::pixels, SDL_Rect::x, and SDL_Rect::y.

Referenced by SW_CreateRendererForSurface().

static int SW_RenderClear ( SDL_Renderer *  renderer )

static

Definition at line 363 of file SDL_render_sw.c.

References SDL_Renderer::a, SDL_Renderer::b, SDL_Surface::clip_rect, SDL_Surface::format, SDL_Renderer::g, NULL, SDL_Renderer::r, SDL_FillRect(), SDL_MapRGBA(), SDL_SetClipRect(), and SW_ActivateRenderer().

Referenced by SW_CreateRendererForSurface().

static int SW_RenderCopy ( SDL_Renderer *  renderer, SDL_Texture *  texture, const SDL_Rect *  srcrect, const SDL_FRect *  dstrect  )

static

Definition at line 533 of file SDL_render_sw.c.

References SDL_Texture::driverdata, SDL_FRect::h, SDL_Rect::h, if(), int, SDL_BlitScaled, SDL_BlitSurface, SW_ActivateRenderer(), SDL_Renderer::viewport, SDL_FRect::w, SDL_Rect::w, SDL_FRect::x, SDL_Rect::x, SDL_FRect::y, and SDL_Rect::y.

Referenced by SW_CreateRendererForSurface().

static int SW_RenderCopyEx ( SDL_Renderer *  renderer, SDL_Texture *  texture, const SDL_Rect *  srcrect, const SDL_FRect *  dstrect, const double  angle, const SDL_FPoint *  center, const SDL_RendererFlip  flip  )

static

Definition at line 574 of file SDL_render_sw.c.

References _rotateSurface(), _rotozoomSurfaceSizeTrig(), SDL_PixelFormat::Amask, SDL_PixelFormat::BitsPerPixel, SDL_PixelFormat::Bmask, SDL_Texture::driverdata, SDL_Surface::format, GetScaleQuality(), SDL_PixelFormat::Gmask, SDL_FRect::h, SDL_Rect::h, if(), int, MIN, NULL, SDL_PixelFormat::Rmask, SDL_BlitScaled, SDL_BlitSurface, SDL_CreateRGBSurface(), SDL_FLIP_HORIZONTAL, SDL_FLIP_VERTICAL, SDL_FreeSurface(), SDL_GetColorKey(), SDL_SetColorKey(), SDL_SWSURFACE, SDL_TRUE, SW_ActivateRenderer(), SDL_Renderer::viewport, SDL_FRect::w, SDL_Rect::w, SDL_FPoint::x, SDL_FRect::x, SDL_Rect::x, SDL_FPoint::y, SDL_FRect::y, and SDL_Rect::y.

Referenced by SW_CreateRendererForSurface().

static int SW_RenderDrawLines ( SDL_Renderer *  renderer, const SDL_FPoint *  points, int  count  )

static

Definition at line 434 of file SDL_render_sw.c.

References SDL_Renderer::a, SDL_Renderer::b, SDL_Renderer::blendMode, SDL_Surface::format, SDL_Renderer::g, i, int, SDL_Renderer::r, SDL_BlendLines(), SDL_BLENDMODE_NONE, SDL_DrawLines(), SDL_MapRGBA(), SDL_OutOfMemory, SDL_stack_alloc, SDL_stack_free, SW_ActivateRenderer(), SDL_Renderer::viewport, SDL_Point::x, SDL_Rect::x, SDL_Point::y, and SDL_Rect::y.

Referenced by SW_CreateRendererForSurface().

static int SW_RenderDrawPoints ( SDL_Renderer *  renderer, const SDL_FPoint *  points, int  count  )

static

Definition at line 385 of file SDL_render_sw.c.

References SDL_Renderer::a, SDL_Renderer::b, SDL_Renderer::blendMode, SDL_Surface::format, SDL_Renderer::g, i, int, SDL_Renderer::r, SDL_BLENDMODE_NONE, SDL_BlendPoints(), SDL_DrawPoints(), SDL_MapRGBA(), SDL_OutOfMemory, SDL_stack_alloc, SDL_stack_free, SW_ActivateRenderer(), SDL_Renderer::viewport, SDL_Point::x, SDL_Rect::x, SDL_Point::y, and SDL_Rect::y.

Referenced by SW_CreateRendererForSurface().

static int SW_RenderFillRects ( SDL_Renderer *  renderer, const SDL_FRect *  rects, int  count  )

static

Definition at line 483 of file SDL_render_sw.c.

References SDL_Renderer::a, SDL_Renderer::b, SDL_Renderer::blendMode, SDL_Surface::format, SDL_Renderer::g, SDL_Rect::h, i, int, SDL_Renderer::r, SDL_BlendFillRects(), SDL_BLENDMODE_NONE, SDL_FillRects(), SDL_MapRGBA(), SDL_max, SDL_OutOfMemory, SDL_stack_alloc, SDL_stack_free, SW_ActivateRenderer(), SDL_Renderer::viewport, SDL_Rect::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by SW_CreateRendererForSurface().

static void SW_RenderPresent ( SDL_Renderer *  renderer )

static

Definition at line 699 of file SDL_render_sw.c.

References SDL_UpdateWindowSurface(), and SDL_Renderer::window.

Referenced by SW_CreateRendererForSurface().

static int SW_RenderReadPixels ( SDL_Renderer *  renderer, const SDL_Rect *  rect, Uint32  format, void *  pixels, int  pitch  )

static

Definition at line 663 of file SDL_render_sw.c.

References SDL_PixelFormat::BytesPerPixel, SDL_Surface::format, SDL_PixelFormat::format, SDL_Rect::h, SDL_Surface::h, SDL_Surface::pitch, SDL_Surface::pixels, SDL_ConvertPixels(), SDL_SetError(), SW_ActivateRenderer(), SDL_Renderer::viewport, SDL_Rect::w, SDL_Surface::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by SW_CreateRendererForSurface().

static int SW_SetRenderTarget ( SDL_Renderer *  renderer, SDL_Texture *  texture  )

static

Definition at line 318 of file SDL_render_sw.c.

References SDL_Texture::driverdata, SDL_Renderer::driverdata, and if().

Referenced by SW_CreateRendererForSurface().

static int SW_SetTextureAlphaMod ( SDL_Renderer *  renderer, SDL_Texture *  texture  )

static

Definition at line 260 of file SDL_render_sw.c.

References SDL_Texture::a, SDL_Texture::driverdata, and SDL_SetSurfaceAlphaMod().

Referenced by SW_CreateRendererForSurface().

static int SW_SetTextureBlendMode ( SDL_Renderer *  renderer, SDL_Texture *  texture  )

static

Definition at line 267 of file SDL_render_sw.c.

References SDL_Texture::blendMode, SDL_Texture::driverdata, and SDL_SetSurfaceBlendMode().

Referenced by SW_CreateRendererForSurface().

static int SW_SetTextureColorMod ( SDL_Renderer *  renderer, SDL_Texture *  texture  )

static

Definition at line 252 of file SDL_render_sw.c.

References SDL_Texture::b, SDL_Texture::driverdata, SDL_Texture::g, SDL_Texture::r, and SDL_SetSurfaceColorMod().

Referenced by SW_CreateRendererForSurface().

static void SW_UnlockTexture ( SDL_Renderer *  renderer, SDL_Texture *  texture  )

static

Definition at line 313 of file SDL_render_sw.c.

Referenced by SW_CreateRendererForSurface().

static int SW_UpdateClipRect ( SDL_Renderer *  renderer )

static

Definition at line 346 of file SDL_render_sw.c.

References SDL_Renderer::clip_rect, SDL_Renderer::driverdata, if(), NULL, SDL_RectEmpty(), and SDL_SetClipRect().

Referenced by SW_ActivateRenderer(), and SW_CreateRendererForSurface().

static int SW_UpdateTexture ( SDL_Renderer *  renderer, SDL_Texture *  texture, const SDL_Rect *  rect, const void *  pixels, int  pitch  )

static

Definition at line 274 of file SDL_render_sw.c.

References SDL_PixelFormat::BytesPerPixel, SDL_Texture::driverdata, for(), SDL_Surface::format, SDL_Rect::h, SDL_Surface::pitch, SDL_Surface::pixels, SDL_LockSurface(), SDL_memcpy(), SDL_MUSTLOCK, SDL_UnlockSurface(), SDL_Rect::w, SDL_Rect::x, and SDL_Rect::y.

Referenced by SW_CreateRendererForSurface().

static int SW_UpdateViewport ( SDL_Renderer *  renderer )

static

Definition at line 331 of file SDL_render_sw.c.

References SDL_Renderer::driverdata, if(), SDL_SetClipRect(), and SDL_Renderer::viewport.

Referenced by SW_ActivateRenderer(), and SW_CreateRendererForSurface().

static void SW_WindowEvent ( SDL_Renderer *  renderer, const SDL_WindowEvent *  event  )

static

Definition at line 193 of file SDL_render_sw.c.

References SDL_Renderer::driverdata, SDL_WindowEvent::event, if(), NULL, and SDL_WINDOWEVENT_SIZE_CHANGED.

Referenced by SW_CreateRendererForSurface().

Variable Documentation

SDL_RenderDriver SW_RenderDriver

Initial value:

= {
    SW_CreateRenderer,
    {
     "software",
     SDL_RENDERER_SOFTWARE | SDL_RENDERER_TARGETTEXTURE,
     8,
     {
      SDL_PIXELFORMAT_RGB555,
      SDL_PIXELFORMAT_RGB565,
      SDL_PIXELFORMAT_RGB888,
      SDL_PIXELFORMAT_BGR888,
      SDL_PIXELFORMAT_ARGB8888,
      SDL_PIXELFORMAT_RGBA8888,
      SDL_PIXELFORMAT_ABGR8888,
      SDL_PIXELFORMAT_BGRA8888
     },
     0,
     0}
}

Definition at line 78 of file SDL_render_sw.c.