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Fix nds flickering

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This commit is contained in:
Michael Theall 2020-05-07 23:31:25 -05:00
parent 5ceecc0f36
commit 4eefb9c576
1 changed files with 21 additions and 0 deletions
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21
source/nds/platform.cpp
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@ -41,6 +41,8 @@ namespace
{ {
/// \brief Host address /// \brief Host address
struct in_addr s_addr = {0}; struct in_addr s_addr = {0};
/// \brief Which side of double-buffer we're on
bool s_backBuffer = false;
/// \brief Whether to power backlight /// \brief Whether to power backlight
bool s_backlight = true; bool s_backlight = true;
} }
@ -126,7 +128,26 @@ bool platform::loop ()
void platform::render () void platform::render ()
{ {
// make consoles point to maps being drawn
g_statusConsole.fontBgMap = bgGetMapPtr (g_statusConsole.bgId);
g_logConsole.fontBgMap = g_statusConsole.fontBgMap;
g_sessionConsole.fontBgMap = bgGetMapPtr (g_sessionConsole.bgId);
swiWaitForVBlank (); swiWaitForVBlank ();
// point maps to back buffer to draw on next frame
bgInit (0, BgType_Text4bpp, BgSize_T_256x256, 4 + s_backBuffer, 0);
bgInitSub (0, BgType_Text4bpp, BgSize_T_256x256, 4 + s_backBuffer, 0);
// initialize back buffer with previous contents
dmaCopyWordsAsynch (0, bgGetMapPtr (g_statusConsole.bgId), g_statusConsole.fontBgMap, 0x800);
dmaCopyWordsAsynch (1, bgGetMapPtr (g_sessionConsole.bgId), g_sessionConsole.fontBgMap, 0x800);
while ((DMA_CR (0) & DMA_BUSY) || (DMA_CR (1) & DMA_BUSY))
{
}
// flip buffers
s_backBuffer = !s_backBuffer;
} }
void platform::exit () void platform::exit ()