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Only draw the borderless video buffer.

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Signed-off-by: Andrea Odetti <mariofutire@gmail.com>
This commit is contained in:
Andrea Odetti 2020-12-19 14:16:52 +00:00
parent 986cf9b896
commit e6532deea3
3 changed files with 27 additions and 16 deletions
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24
source/frontends/retro/game.cpp
View file

@ -47,8 +47,6 @@ namespace
Game::Game()
: mySpeed(true)
, myWidth(GetFrameBufferWidth())
, myHeight(GetFrameBufferHeight())
{
EmulatorOptions options;
options.memclear = g_nMemoryClearType;
@ -62,7 +60,17 @@ Game::Game()
InitializeRegistry(options);
initialiseEmulator();
const size_t size = myWidth * myHeight * sizeof(bgra_t);
myBorderlessWidth = GetFrameBufferBorderlessWidth();
myBorderlessHeight = GetFrameBufferBorderlessHeight();
const size_t borderWidth = GetFrameBufferBorderWidth();
const size_t borderHeight = GetFrameBufferBorderHeight();
const size_t width = GetFrameBufferWidth();
myHeight = GetFrameBufferHeight();
myPitch = width * sizeof(bgra_t);
myOffset = (width * borderHeight + borderWidth) * sizeof(bgra_t);
const size_t size = myHeight * myPitch;
myVideoBuffer.resize(size);
}
@ -209,18 +217,18 @@ void Game::processKeyUp(unsigned keycode, uint32_t character, uint16_t key_modif
void Game::drawVideoBuffer()
{
const size_t pitch = myWidth * sizeof(bgra_t);
// this should not be necessary
// either libretro handles it
// or we should change AW
// but for now, there is no alternative
for (size_t row = 0; row < myHeight; ++row)
{
const uint8_t * src = g_pFramebufferbits + row * pitch;
uint8_t * dst = myVideoBuffer.data() + (myHeight - row - 1) * pitch;
memcpy(dst, src, pitch);
const uint8_t * src = g_pFramebufferbits + row * myPitch;
uint8_t * dst = myVideoBuffer.data() + (myHeight - row - 1) * myPitch;
memcpy(dst, src, myPitch);
}
video_cb(myVideoBuffer.data(), myWidth, myHeight, pitch);
video_cb(myVideoBuffer.data() + myOffset, myBorderlessWidth, myBorderlessHeight, myPitch);
}
bool Game::loadGame(const char * path)

11
source/frontends/retro/game.h
View file

@ -19,12 +19,15 @@ public:
private:
Speed mySpeed; // fixed speed
std::vector<uint8_t> myVideoBuffer;
size_t myPitch;
size_t myOffset;
size_t myHeight;
size_t myBorderlessWidth;
size_t myBorderlessHeight;
const size_t myHeight;
const size_t myWidth;
static void processKeyDown(unsigned keycode, uint32_t character, uint16_t key_modifiers);
static void processKeyUp(unsigned keycode, uint32_t character, uint16_t key_modifiers);
std::vector<uint8_t> myVideoBuffer;
};

8
source/frontends/retro/libretro.cpp
View file

@ -62,10 +62,10 @@ void retro_get_system_av_info(retro_system_av_info *info)
{
log_cb(RETRO_LOG_INFO, "RA2: %s\n", __FUNCTION__);
info->geometry.base_width = GetFrameBufferWidth();
info->geometry.base_height = GetFrameBufferHeight();
info->geometry.max_width = GetFrameBufferWidth();
info->geometry.max_height = GetFrameBufferHeight();
info->geometry.base_width = GetFrameBufferBorderlessWidth();
info->geometry.base_height = GetFrameBufferBorderlessHeight();
info->geometry.max_width = GetFrameBufferBorderlessWidth();
info->geometry.max_height = GetFrameBufferBorderlessHeight();
info->geometry.aspect_ratio = 0;
info->timing.fps = 60;