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GDS optimization

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This commit is contained in:
philippe44
2023-11-16 22:52:18 -08:00
parent 2afbee7cb1
commit e85a3cddf1
5 changed files with 85 additions and 85 deletions
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76
components/display/core/gds.c
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@@ -109,7 +109,7 @@ void GDS_ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int y2,
int c = x1;
// for a row that is not on a boundary, no optimization possible
while (r & 0x07 && r <= y2) {
for (c = x1; c <= x2; c++) DrawPixelFast( Device, c, r, Color );
for (c = x1; c <= x2; c++) Device->DrawPixelFast( Device, c, r, Color );
r++;
}
// go fast if we have more than 8 lines to write
@@ -117,7 +117,7 @@ void GDS_ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int y2,
memset(optr + Width * r + x1, _Color, x2 - x1 + 1);
r += 8;
} else while (r <= y2) {
for (c = x1; c <= x2; c++) DrawPixelFast( Device, c, r, Color );
for (c = x1; c <= x2; c++) Device->DrawPixelFast( Device, c, r, Color );
r++;
}
}
@@ -133,10 +133,10 @@ void GDS_ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int y2,
// try to do byte processing as much as possible
for (int r = y1; r <= y2; r++) {
int c = x1;
if (c & 0x01) DrawPixelFast( Device, c++, r, Color);
if (c & 0x01) Device->DrawPixelFast( Device, c++, r, Color);
int chunk = (x2 - c + 1) >> 1;
memset(optr + ((r * Width + c) >> 1), _Color, chunk);
if (c + chunk <= x2) DrawPixelFast( Device, x2, r, Color);
if (c + chunk <= x2) Device->DrawPixelFast( Device, x2, r, Color);
}
}
} else if (Device->Depth == 8) {
@@ -148,7 +148,7 @@ void GDS_ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int y2,
} else {
for (int y = y1; y <= y2; y++) {
for (int x = x1; x <= x2; x++) {
DrawPixelFast( Device, x, y, Color);
Device->DrawPixelFast( Device, x, y, Color);
}
}
}
@@ -171,10 +171,76 @@ bool GDS_Reset( struct GDS_Device* Device ) {
return true;
}
static void IRAM_ATTR DrawPixel1Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint32_t YBit = ( Y & 0x07 );
uint8_t* FBOffset;
/*
* We only need to modify the Y coordinate since the pitch
* of the screen is the same as the width.
* Dividing Y by 8 gives us which row the pixel is in but not
* the bit position.
*/
Y>>= 3;
FBOffset = Device->Framebuffer + ( ( Y * Device->Width ) + X );
if ( Color == GDS_COLOR_XOR ) {
*FBOffset ^= BIT( YBit );
} else {
*FBOffset = ( Color == GDS_COLOR_BLACK ) ? *FBOffset & ~BIT( YBit ) : *FBOffset | BIT( YBit );
}
}
static void IRAM_ATTR DrawPixel4Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint8_t* FBOffset = Device->Framebuffer + ( (Y * Device->Width >> 1) + (X >> 1));
*FBOffset = X & 0x01 ? (*FBOffset & 0x0f) | ((Color & 0x0f) << 4) : ((*FBOffset & 0xf0) | (Color & 0x0f));
}
static void IRAM_ATTR DrawPixel4FastHigh( struct GDS_Device* Device, int X, int Y, int Color ) {
uint8_t* FBOffset = Device->Framebuffer + ( (Y * Device->Width >> 1) + (X >> 1));
*FBOffset = X & 0x01 ? ((*FBOffset & 0xf0) | (Color & 0x0f)) : (*FBOffset & 0x0f) | ((Color & 0x0f) << 4);
}
static void IRAM_ATTR DrawPixel8Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
Device->Framebuffer[Y * Device->Width + X] = Color;
}
// assumes that Color is 16 bits R..RG..GB..B from MSB to LSB and FB wants 1st serialized byte to start with R
static void IRAM_ATTR DrawPixel16Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint16_t* FBOffset = (uint16_t*) Device->Framebuffer + Y * Device->Width + X;
*FBOffset = __builtin_bswap16(Color);
}
// assumes that Color is 18 bits RGB from MSB to LSB RRRRRRGGGGGGBBBBBB, so byte[0] is B
// FB is 3-bytes packets and starts with R for serialization so 0,1,2 ... = xxRRRRRR xxGGGGGG xxBBBBBB
static void IRAM_ATTR DrawPixel18Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint8_t* FBOffset = Device->Framebuffer + (Y * Device->Width + X) * 3;
*FBOffset++ = Color >> 12; *FBOffset++ = (Color >> 6) & 0x3f; *FBOffset = Color & 0x3f;
}
// assumes that Color is 24 bits RGB from MSB to LSB RRRRRRRRGGGGGGGGBBBBBBBB, so byte[0] is B
// FB is 3-bytes packets and starts with R for serialization so 0,1,2 ... = RRRRRRRR GGGGGGGG BBBBBBBB
static void IRAM_ATTR DrawPixel24Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint8_t* FBOffset = Device->Framebuffer + (Y * Device->Width + X) * 3;
*FBOffset++ = Color >> 16; *FBOffset++ = Color >> 8; *FBOffset = Color;
}
bool GDS_Init( struct GDS_Device* Device ) {
if (Device->Depth > 8) Device->FramebufferSize = Device->Width * Device->Height * ((8 + Device->Depth - 1) / 8);
else Device->FramebufferSize = (Device->Width * Device->Height) / (8 / Device->Depth);
// set the proper DrawPixel function if not already set by driver
if (!Device->DrawPixelFast) {
if (Device->Depth == 1) Device->DrawPixelFast = DrawPixel1Fast;
else if (Device->Depth == 4 && Device->HighNibble) Device->DrawPixelFast = DrawPixel4FastHigh;
else if (Device->Depth == 4) Device->DrawPixelFast = DrawPixel4Fast;
else if (Device->Depth == 8) Device->DrawPixelFast = DrawPixel8Fast;
else if (Device->Depth == 16) Device->DrawPixelFast = DrawPixel16Fast;
else if (Device->Depth == 24 && Device->Mode == GDS_RGB666) Device->DrawPixelFast = DrawPixel18Fast;
else if (Device->Depth == 24 && Device->Mode == GDS_RGB888) Device->DrawPixelFast = DrawPixel24Fast;
}
// allocate FB unless explicitely asked not to
if (!(Device->Alloc & GDS_ALLOC_NONE)) {

24
components/display/core/gds_draw.c
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@@ -45,7 +45,7 @@ __attribute__( ( always_inline ) ) static inline void SwapInt( int* a, int* b )
}
void IRAM_ATTR GDS_DrawPixelFast( struct GDS_Device* Device, int X, int Y, int Color ) {
DrawPixelFast( Device, X, Y, Color );
Device->DrawPixelFast( Device, X, Y, Color );
}
void IRAM_ATTR GDS_DrawPixel( struct GDS_Device* Device, int X, int Y, int Color ) {
@@ -63,7 +63,7 @@ void GDS_DrawHLine( struct GDS_Device* Device, int x, int y, int Width, int Colo
if (y < 0) y = 0;
else if (y >= Device->Height) y = Device->Height - 1;
for ( ; x < XEnd; x++ ) DrawPixelFast( Device, x, y, Color );
for ( ; x < XEnd; x++ ) Device->DrawPixelFast( Device, x, y, Color );
}
void GDS_DrawVLine( struct GDS_Device* Device, int x, int y, int Height, int Color ) {
@@ -97,7 +97,7 @@ static inline void DrawWideLine( struct GDS_Device* Device, int x0, int y0, int
for ( ; x < x1; x++ ) {
if ( IsPixelVisible( Device, x, y ) == true ) {
DrawPixelFast( Device, x, y, Color );
Device->DrawPixelFast( Device, x, y, Color );
}
if ( Error > 0 ) {
@@ -126,7 +126,7 @@ static inline void DrawTallLine( struct GDS_Device* Device, int x0, int y0, int
for ( ; y < y1; y++ ) {
if ( IsPixelVisible( Device, x, y ) == true ) {
DrawPixelFast( Device, x, y, Color );
Device->DrawPixelFast( Device, x, y, Color );
}
if ( Error > 0 ) {
@@ -348,14 +348,14 @@ void GDS_DrawBitmapCBR(struct GDS_Device* Device, uint8_t *Data, int Width, int
// don't know bitdepth, use brute-force solution
for (int i = Width * Height, r = 0, c = 0; --i >= 0;) {
uint8_t Byte = *Data++;
DrawPixelFast( Device, c, (r << 3) + 7, (Byte & 0x01) * Color ); Byte >>= 1;
DrawPixelFast( Device, c, (r << 3) + 6, (Byte & 0x01) * Color ); Byte >>= 1;
DrawPixelFast( Device, c, (r << 3) + 5, (Byte & 0x01) * Color ); Byte >>= 1;
DrawPixelFast( Device, c, (r << 3) + 4, (Byte & 0x01) * Color ); Byte >>= 1;
DrawPixelFast( Device, c, (r << 3) + 3, (Byte & 0x01) * Color ); Byte >>= 1;
DrawPixelFast( Device, c, (r << 3) + 2, (Byte & 0x01) * Color ); Byte >>= 1;
DrawPixelFast( Device, c, (r << 3) + 1, (Byte & 0x01) * Color ); Byte >>= 1;
DrawPixelFast( Device, c, (r << 3) + 0, (Byte & 0x01) * Color );
Device->DrawPixelFast( Device, c, (r << 3) + 7, (Byte & 0x01) * Color ); Byte >>= 1;
Device->DrawPixelFast( Device, c, (r << 3) + 6, (Byte & 0x01) * Color ); Byte >>= 1;
Device->DrawPixelFast( Device, c, (r << 3) + 5, (Byte & 0x01) * Color ); Byte >>= 1;
Device->DrawPixelFast( Device, c, (r << 3) + 4, (Byte & 0x01) * Color ); Byte >>= 1;
Device->DrawPixelFast( Device, c, (r << 3) + 3, (Byte & 0x01) * Color ); Byte >>= 1;
Device->DrawPixelFast( Device, c, (r << 3) + 2, (Byte & 0x01) * Color ); Byte >>= 1;
Device->DrawPixelFast( Device, c, (r << 3) + 1, (Byte & 0x01) * Color ); Byte >>= 1;
Device->DrawPixelFast( Device, c, (r << 3) + 0, (Byte & 0x01) * Color );
if (++r == Height) { c++; r = 0; }
}
/* for better understanding, here is the mundane version

62
components/display/core/gds_private.h
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@@ -156,69 +156,9 @@ static inline bool IsPixelVisible( struct GDS_Device* Device, int x, int y ) {
return Result;
}
static inline void DrawPixel1Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint32_t YBit = ( Y & 0x07 );
uint8_t* FBOffset;
/*
* We only need to modify the Y coordinate since the pitch
* of the screen is the same as the width.
* Dividing Y by 8 gives us which row the pixel is in but not
* the bit position.
*/
Y>>= 3;
FBOffset = Device->Framebuffer + ( ( Y * Device->Width ) + X );
if ( Color == GDS_COLOR_XOR ) {
*FBOffset ^= BIT( YBit );
} else {
*FBOffset = ( Color == GDS_COLOR_BLACK ) ? *FBOffset & ~BIT( YBit ) : *FBOffset | BIT( YBit );
}
}
static inline void DrawPixel4Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint8_t* FBOffset = Device->Framebuffer + ( (Y * Device->Width >> 1) + (X >> 1));
*FBOffset = X & 0x01 ? (*FBOffset & 0x0f) | ((Color & 0x0f) << 4) : ((*FBOffset & 0xf0) | (Color & 0x0f));
}
static inline void DrawPixel8Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
Device->Framebuffer[Y * Device->Width + X] = Color;
}
// assumes that Color is 16 bits R..RG..GB..B from MSB to LSB and FB wants 1st serialized byte to start with R
static inline void DrawPixel16Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint16_t* FBOffset = (uint16_t*) Device->Framebuffer + Y * Device->Width + X;
*FBOffset = __builtin_bswap16(Color);
}
// assumes that Color is 18 bits RGB from MSB to LSB RRRRRRGGGGGGBBBBBB, so byte[0] is B
// FB is 3-bytes packets and starts with R for serialization so 0,1,2 ... = xxRRRRRR xxGGGGGG xxBBBBBB
static inline void DrawPixel18Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint8_t* FBOffset = Device->Framebuffer + (Y * Device->Width + X) * 3;
*FBOffset++ = Color >> 12; *FBOffset++ = (Color >> 6) & 0x3f; *FBOffset = Color & 0x3f;
}
// assumes that Color is 24 bits RGB from MSB to LSB RRRRRRRRGGGGGGGGBBBBBBBB, so byte[0] is B
// FB is 3-bytes packets and starts with R for serialization so 0,1,2 ... = RRRRRRRR GGGGGGGG BBBBBBBB
static inline void DrawPixel24Fast( struct GDS_Device* Device, int X, int Y, int Color ) {
uint8_t* FBOffset = Device->Framebuffer + (Y * Device->Width + X) * 3;
*FBOffset++ = Color >> 16; *FBOffset++ = Color >> 8; *FBOffset = Color;
}
static inline void IRAM_ATTR DrawPixelFast( struct GDS_Device* Device, int X, int Y, int Color ) {
if (Device->DrawPixelFast) Device->DrawPixelFast( Device, X, Y, Color );
else if (Device->Depth == 4) DrawPixel4Fast( Device, X, Y, Color );
else if (Device->Depth == 1) DrawPixel1Fast( Device, X, Y, Color );
else if (Device->Depth == 16) DrawPixel16Fast( Device, X, Y, Color );
else if (Device->Depth == 24 && Device->Mode == GDS_RGB666) DrawPixel18Fast( Device, X, Y, Color );
else if (Device->Depth == 24 && Device->Mode == GDS_RGB888) DrawPixel24Fast( Device, X, Y, Color );
else if (Device->Depth == 8) DrawPixel8Fast( Device, X, Y, Color );
}
static inline void IRAM_ATTR DrawPixel( struct GDS_Device* Device, int x, int y, int Color ) {
if ( IsPixelVisible( Device, x, y ) == true ) {
DrawPixelFast( Device, x, y, Color );
Device->DrawPixelFast( Device, x, y, Color );
}
}

2
components/display/core/gds_text.c
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@@ -108,7 +108,7 @@ bool GDS_TextLine(struct GDS_Device* Device, int N, int Pos, int Attr, char *Tex
int Y_min = max(0, Device->Lines[N].Y), Y_max = max(0, Device->Lines[N].Y + Device->Lines[N].Font->Height);
for (int c = (Attr & GDS_TEXT_CLEAR_EOL) ? X : 0; c < Device->TextWidth; c++)
for (int y = Y_min; y < Y_max; y++)
DrawPixelFast( Device, c, y, GDS_COLOR_BLACK );
Device->DrawPixelFast( Device, c, y, GDS_COLOR_BLACK );
}
GDS_FontDrawString( Device, X, Device->Lines[N].Y, Text, GDS_COLOR_WHITE );