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Update DMA fn clipping for viewport

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Bodmer
2020-10-06 20:00:59 +01:00
parent c0f14b2f99
commit ee91f723e7
2 changed files with 10 additions and 10 deletions
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10
Processors/TFT_eSPI_ESP32.c
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@@ -575,18 +575,18 @@ void TFT_eSPI::pushPixelsDMA(uint16_t* image, uint32_t len)
// This will clip and also swap bytes if setSwapBytes(true) was called by sketch
void TFT_eSPI::pushImageDMA(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t* image, uint16_t* buffer)
{
if ((x >= _width) || (y >= _height) || (!DMA_Enabled)) return;
if ((x >= _vpW) || (y >= _vpH) || (!DMA_Enabled)) return;
int32_t dx = 0;
int32_t dy = 0;
int32_t dw = w;
int32_t dh = h;
if (x < 0) { dw += x; dx = -x; x = 0; }
if (y < 0) { dh += y; dy = -y; y = 0; }
if (x < _vpX) { dx = _vpX - x; dw -= dx; x = _vpX; }
if (y < _vpY) { dy = _vpY - y; dh -= dy; y = _vpY; }
if ((x + dw) > _width ) dw = _width - x;
if ((y + dh) > _height) dh = _height - y;
if ((x + dw) > _vpW ) dw = _vpW - x;
if ((y + dh) > _vpH ) dh = _vpH - y;
if (dw < 1 || dh < 1) return;

10
Processors/TFT_eSPI_STM32.c
View File

@@ -437,18 +437,18 @@ void TFT_eSPI::pushPixelsDMA(uint16_t* image, uint32_t len)
// This will clip and also swap bytes if setSwapBytes(true) was called by sketch
void TFT_eSPI::pushImageDMA(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t* image, uint16_t* buffer)
{
if ((x >= _width) || (y >= _height)) return;
if ((x >= _vpW) || (y >= _vpH)) return;
int32_t dx = 0;
int32_t dy = 0;
int32_t dw = w;
int32_t dh = h;
if (x < 0) { dw += x; dx = -x; x = 0; }
if (y < 0) { dh += y; dy = -y; y = 0; }
if (x < _vpX) { dx = _vpX - x; dw -= dx; x = _vpX; }
if (y < _vpY) { dy = _vpY - y; dh -= dy; y = _vpY; }
if ((x + dw) > _width ) dw = _width - x;
if ((y + dh) > _height) dh = _height - y;
if ((x + dw) > _vpW ) dw = _vpW - x;
if ((y + dh) > _vpH ) dh = _vpH - y;
if (dw < 1 || dh < 1) return;