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Add gfxScreenSwapBuffers, see details:

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- Added the ability to duplicate the left eye image to the right eye
  (allows apps to skip rendering to the right eye framebuffer when
   the 3d slider is set to 0.0)
- Deprecated gfxConfigScreen
This commit is contained in:
fincs 2020-07-07 13:06:28 +02:00
parent 4a9c547d8b
commit bd9e559309
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GPG Key ID: 62C7609ADA219C60
2 changed files with 27 additions and 13 deletions
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15
libctru/include/3ds/gfx.h
View File

@ -151,17 +151,26 @@ void gfxFlushBuffers(void);
/**
* @brief Updates the configuration of the specified screen, swapping the buffers if double buffering is enabled.
* @param scr Screen ID (see \ref gfxScreen_t)
* @param immediate This parameter no longer has any effect and is thus ignored.
* @param hasStereo For the top screen in 3D mode: true if the framebuffer contains individual images
* for both eyes, or false if the left image should be duplicated to the right eye.
* @note Previously rendered content will be displayed on the screen after the next VBlank.
* @note This function is still useful even if double buffering is disabled, as it must be used to commit configuration changes.
* @warning Only call this once per screen per frame, otherwise graphical glitches will occur
* since this API does not implement triple buffering.
*/
void gfxConfigScreen(gfxScreen_t scr, bool immediate);
void gfxScreenSwapBuffers(gfxScreen_t scr, bool hasStereo);
/**
* @brief Same as \ref gfxScreenSwapBuffers, but with hasStereo set to true.
* @param scr Screen ID (see \ref gfxScreen_t)
* @param immediate This parameter no longer has any effect and is thus ignored.
* @deprecated This function has been superseded by \ref gfxScreenSwapBuffers, please use that instead.
*/
DEPRECATED void gfxConfigScreen(gfxScreen_t scr, bool immediate);
/**
* @brief Updates the configuration of both screens.
* @note This function is equivalent to calling \ref gfxConfigScreen for both screens.
* @note This function is equivalent to: \code gfxScreenSwapBuffers(GFX_TOP,true); gfxScreenSwapBuffers(GFX_BOTTOM,true); \endcode
*/
void gfxSwapBuffers(void);

25
libctru/source/gfx.c
View File

@ -83,7 +83,7 @@ void gfxSetDoubleBuffering(gfxScreen_t screen, bool enable)
gfxIsDoubleBuf[screen] = enable ? 1 : 0; // make sure they're the integer values '1' and '0'
}
static void gfxPresentFramebuffer(gfxScreen_t screen, u8 id)
static void gfxPresentFramebuffer(gfxScreen_t screen, u8 id, bool hasStereo)
{
u32 stride = GSP_SCREEN_WIDTH*gspGetBytesPerPixel(gfxFramebufferFormats[screen]);
u32 mode = gfxFramebufferFormats[screen];
@ -101,7 +101,7 @@ static void gfxPresentFramebuffer(gfxScreen_t screen, u8 id)
break;
case MODE_3D:
mode |= BIT(5);
fb_b = fb_a + gfxTopFramebufferMaxSize/2;
fb_b = hasStereo ? (fb_a + gfxTopFramebufferMaxSize/2) : fb_a;
break;
case MODE_WIDE:
fb_b = fb_a;
@ -149,8 +149,8 @@ void gfxInit(GSPGPU_FramebufferFormat topFormat, GSPGPU_FramebufferFormat bottom
// Present the framebuffers
gfxCurBuf[0] = gfxCurBuf[1] = 0;
gfxPresentFramebuffer(GFX_TOP, 0);
gfxPresentFramebuffer(GFX_BOTTOM, 0);
gfxPresentFramebuffer(GFX_TOP, 0, false);
gfxPresentFramebuffer(GFX_BOTTOM, 0, false);
// Wait for VBlank and turn the LCD on
gspWaitForVBlank();
@ -241,20 +241,25 @@ void gfxFlushBuffers(void)
GSPGPU_FlushDataCache(gfxGetFramebuffer(GFX_BOTTOM, GFX_LEFT, NULL, NULL), bottomSize);
}
void gfxConfigScreen(gfxScreen_t scr, bool immediate)
void gfxScreenSwapBuffers(gfxScreen_t scr, bool hasStereo)
{
gfxCurBuf[scr] ^= gfxIsDoubleBuf[scr];
gfxPresentFramebuffer(scr, gfxCurBuf[scr]);
gfxPresentFramebuffer(scr, gfxCurBuf[scr], hasStereo);
}
void gfxConfigScreen(gfxScreen_t scr, bool immediate)
{
gfxScreenSwapBuffers(scr, true);
}
void gfxSwapBuffers(void)
{
gfxConfigScreen(GFX_TOP, true);
gfxConfigScreen(GFX_BOTTOM, true);
gfxScreenSwapBuffers(GFX_TOP, true);
gfxScreenSwapBuffers(GFX_BOTTOM, true);
}
void gfxSwapBuffersGpu(void)
{
gfxConfigScreen(GFX_TOP, false);
gfxConfigScreen(GFX_BOTTOM, false);
gfxScreenSwapBuffers(GFX_TOP, true);
gfxScreenSwapBuffers(GFX_BOTTOM, true);
}