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STM32LTDC 2nd layer support with alpha

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This commit is contained in:
inmarket 2017-10-01 18:00:49 +10:00
parent 70222f8c8d
commit 82047b1ac6
10 changed files with 375 additions and 244 deletions
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32
boards/base/STM32F429i-Discovery/board_STM32LTDC.h
View file

@ -23,6 +23,8 @@ static const SPIConfig spi_cfg = {
((1 << 3) & SPI_CR1_BR) | SPI_CR1_SSM | SPI_CR1_SSI | SPI_CR1_MSTR
};
#define ALLOW_2ND_LAYER TRUE
static const ltdcConfig driverCfg = {
240, 320,
10, 2,
@ -37,15 +39,33 @@ static const ltdcConfig driverCfg = {
LTDC_PIXELFORMAT, // fmt
0, 0, // x, y
240, 320, // cx, cy
LTDC_COLOR_FUCHSIA, // defcolor
0x980088, // keycolor
0x00000000, // defcolor
0x000000, // keycolor
LTDC_BLEND_FIX1_FIX2, // blending
0, // palette
0, // palettelen
0xFF, // alpha
LTDC_LEF_ENABLE // flags
},
#if ALLOW_2ND_LAYER
{ // Foreground layer config (if turned on)
(LLDCOLOR_TYPE *)(SDRAM_DEVICE_ADDR+(240 * 320 * LTDC_PIXELBYTES)), // Frame buffer address
240, 320, // width, height
240 * LTDC_PIXELBYTES, // pitch
LTDC_PIXELFORMAT, // fmt
0, 0, // x, y
240, 320, // cx, cy
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_MOD1_MOD2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
0xFF, // Constant alpha factor
LTDC_LEF_ENABLE // Layer configuration flags
}
#else
LTDC_UNUSED_LAYER_CONFIG
#endif
};
#include "ili9341.h"
@ -146,12 +166,8 @@ static void Init9341(GDisplay *g) {
}
static void init_board(GDisplay *g) {
(void) g;
// As we are not using multiple displays we set g->board to NULL as we don't use it.
g->board = 0;
switch(g->controllerdisplay) {
case 0: // Set up for Display 0
palSetPadMode(GPIOA, 9, PAL_MODE_ALTERNATE(7)); // UART_TX
palSetPadMode(GPIOA, 10, PAL_MODE_ALTERNATE(7)); // UART_RX
palSetPadMode(GPIOF, GPIOF_LCD_DCX, PAL_MODE_ALTERNATE(5));
@ -183,8 +199,6 @@ static void init_board(GDisplay *g) {
spiStart(SPI_PORT, &spi_cfg);
Init9341(g);
break;
}
}
static GFXINLINE void post_init_board(GDisplay *g) {

35
boards/base/STM32F439i-Eval/CubeHal/board_STM32LTDC.h
View file

@ -17,6 +17,8 @@
#include "stm32f4xx_hal.h"
#include "stm324x9i_eval_sdram.h"
#define ALLOW_2ND_LAYER TRUE
// Panel parameters
// This panel is a AMPIRE640480 panel.
@ -35,8 +37,8 @@ static const ltdcConfig driverCfg = {
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
640, 480, // Size of virtual layer (cx, cy)
LTDC_COLOR_FUCHSIA, // Default color (ARGB8888)
0x980088, // Color key (RGB888)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_FIX1_FIX2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
@ -44,7 +46,25 @@ static const ltdcConfig driverCfg = {
LTDC_LEF_ENABLE // Layer configuration flags
},
LTDC_UNUSED_LAYER_CONFIG // Foreground layer config
#if ALLOW_2ND_LAYER
{ // Foreground layer config (if turned on)
(LLDCOLOR_TYPE *)(SDRAM_DEVICE_ADDR+(640 * 480 * LTDC_PIXELBYTES)), // Frame buffer address
640, 480, // Width, Height (pixels)
640 * LTDC_PIXELBYTES, // Line pitch (bytes)
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
640, 480, // Size of virtual layer (cx, cy)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_MOD1_MOD2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
0xFF, // Constant alpha factor
LTDC_LEF_ENABLE // Layer configuration flags
}
#else
LTDC_UNUSED_LAYER_CONFIG
#endif
};
// LCD Clock values
@ -113,11 +133,7 @@ static void configureLcdPins(void)
static GFXINLINE void init_board(GDisplay* g)
{
// As we are not using multiple displays we set g->board to NULL as we don't use it
g->board = 0;
switch(g->controllerdisplay) {
case 0:
(void) g;
// Set LCD pixel clock rate
configureLcdClock();
@ -127,9 +143,6 @@ static GFXINLINE void init_board(GDisplay* g)
// Initialise the SDRAM
BSP_SDRAM_Init();
break;
}
}
static GFXINLINE void post_init_board(GDisplay* g)

42
boards/base/STM32F469i-Discovery/board_STM32LTDC.h
View file

@ -27,6 +27,8 @@
static DSI_VidCfgTypeDef hdsivideo_handle;
DSI_HandleTypeDef hdsi_eval;
#define ALLOW_2ND_LAYER FALSE // Do we really have the RAM bandwidth for this?
// Panel parameters
// This panel is a KoD KM-040TMP-02-0621 DSI LCD Display.
@ -45,8 +47,8 @@ static const ltdcConfig driverCfg = {
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
800, 480, // Size of virtual layer (cx, cy)
LTDC_COLOR_FUCHSIA, // Default color (ARGB8888)
0x980088, // Color key (RGB888)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_FIX1_FIX2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
@ -54,16 +56,32 @@ static const ltdcConfig driverCfg = {
LTDC_LEF_ENABLE // Layer configuration flags
},
LTDC_UNUSED_LAYER_CONFIG // Foreground layer config
#if ALLOW_2ND_LAYER
{ // Foreground layer config (if turned on)
(LLDCOLOR_TYPE *)(SDRAM_DEVICE_ADDR+(800 * 480 * LTDC_PIXELBYTES)), // Frame buffer address
800, 480, // Width, Height (pixels)
800 * LTDC_PIXELBYTES, // Line pitch (bytes)
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
800, 480, // Size of virtual layer (cx, cy)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_MOD1_MOD2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
0xFF, // Constant alpha factor
LTDC_LEF_ENABLE // Layer configuration flags
}
#else
LTDC_UNUSED_LAYER_CONFIG
#endif
};
/* Display timing */
#define KoD_FREQUENCY_DIVIDER 7
static GFXINLINE void init_board(GDisplay *g) {
// As we are not using multiple displays we set g->board to NULL as we don't use it
g->board = 0;
(void) g;
DSI_PLLInitTypeDef dsiPllInit;
DSI_PHY_TimerTypeDef PhyTimings;
@ -241,12 +259,16 @@ static GFXINLINE void init_board(GDisplay *g) {
/* Initialize the SDRAM */
BSP_SDRAM_Init();
#endif /* DATA_IN_ExtSDRAM */
}
static GFXINLINE void post_init_board(GDisplay* g)
{
(void)g;
if (g->controllerdisplay)
return;
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
@ -259,14 +281,6 @@ static GFXINLINE void post_init_board(GDisplay* g)
* depending on configuration set in 'hdsivideo_handle'.
*/
OTM8009A_Init(OTM8009A_FORMAT_RGB888, OTM8009A_ORIENTATION_LANDSCAPE);
/***********************End OTM8009A Initialization****************************/
// ------------------------------------------------------------------------
//BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER_BACKGROUND, LCD_FB_START_ADDRESS);
//BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_BACKGROUND);
//BSP_LCD_SetLayerVisible(LTDC_ACTIVE_LAYER_FOREGROUND, DISABLE);
}
static GFXINLINE void set_backlight(GDisplay* g, uint8_t percent)

39
boards/base/STM32F746-Discovery/board_STM32LTDC.h
View file

@ -36,6 +36,8 @@
#define AFRH AFR[1]
#endif
#define ALLOW_2ND_LAYER TRUE
static const ltdcConfig driverCfg = {
480, 272, // Width, Height (pixels)
41, 10, // Horizontal, Vertical sync (pixels)
@ -51,8 +53,8 @@ static const ltdcConfig driverCfg = {
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
480, 272, // Size of virtual layer (cx, cy)
LTDC_COLOR_FUCHSIA, // Default color (ARGB8888)
0x980088, // Color key (RGB888)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_FIX1_FIX2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
@ -60,7 +62,25 @@ static const ltdcConfig driverCfg = {
LTDC_LEF_ENABLE // Layer configuration flags
},
LTDC_UNUSED_LAYER_CONFIG // Foreground layer config
#if ALLOW_2ND_LAYER
{ // Foreground layer config (if turned on)
(LLDCOLOR_TYPE *)(SDRAM_DEVICE_ADDR+(480 * 272 * LTDC_PIXELBYTES)), // Frame buffer address
480, 272, // Width, Height (pixels)
480 * LTDC_PIXELBYTES, // Line pitch (bytes)
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
480, 272, // Size of virtual layer (cx, cy)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_MOD1_MOD2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
0xFF, // Constant alpha factor
LTDC_LEF_ENABLE // Layer configuration flags
}
#else
LTDC_UNUSED_LAYER_CONFIG
#endif
};
static void configureLcdPins(void) {
@ -374,12 +394,7 @@ static void configureLcdPins(void) {
}
static GFXINLINE void init_board(GDisplay *g) {
// As we are not using multiple displays we set g->board to NULL as we don't use it
g->board = 0;
switch(g->controllerdisplay) {
case 0:
(void) g;
// Set pin directions
configureLcdPins();
@ -439,12 +454,6 @@ static GFXINLINE void init_board(GDisplay *g) {
// Initialise the SDRAM
BSP_SDRAM_Init();
// Clear the SDRAM
//memset((void *)SDRAM_BANK_ADDR, 0, 0x400000);
break;
}
}
static GFXINLINE void post_init_board(GDisplay* g) {

9
changelog.txt
View file

@ -51,6 +51,15 @@ FEATURE: Added gwinTextEditSendKey() and gwinTextEditSendSpecialKey()
FEATURE: Implemented the JPG image decoder
FEATURE: Added SSD1322 driver
FEATURE: Added support for Zephyr operating system
FEATURE: STM32LTDC driver now supports using both layers as seperate displays. The 2nd display is the foreground layer
CHANGE: STM32LTDC driver now uses RGB888 pixel format by default
FEATURE: Added GDISP_LTDC_USE_RGB565 config variable to force STM32LTDC driver to use RGB565 pixel format
FEATURE: The STM32LTDC 2nd display (the foreground layer) supports alpha.
FEATURE: The STM32 board files for known boards have been updated to contain support for the 2nd layer.
FEATURE: Added AHTML2COLOR() and ARGB2COLOR() to support alpha. This is currently only supported for the RGB888 pixel format.
FEATURE: Added the new color GFXTRANSPARENT - only available for RGB888 pixel format on alpha capable displays.
NOTE: Alpha support in RGB888 requies an alpha capable display (STM32LTDC 2nd display only currently)
NOTE: Alpha support in RGB888 is NOT the standard ARGB8888 format. Only use AHTML2COLOR() and ARGB2COLOR() to create alpha colors.
*** Release 2.7 ***

2
demos/modules/gdisp/multiple_displays/gfxconf.h
View file

@ -84,7 +84,7 @@
//#define GDISP_PIXELFORMAT GDISP_PIXELFORMAT_RGB888
#elif !defined(GDISP_TOTAL_DISPLAYS) && (!defined(GDISP_PIXELFORMAT) || !defined(GDISP_DRIVER_LIST))
#error "gfxconf.h: You have not defined multiple displays properly. Try defining GDISP_TOTAL_DISPLAY or, GDISP_PIXELFORMAT and GDISP_DRIVER_LIST in your makefile"
#error "gfxconf.h: You have not defined multiple displays properly. Try defining GDISP_TOTAL_DISPLAYS or, GDISP_PIXELFORMAT and GDISP_DRIVER_LIST in your makefile"
#endif
/*

45
drivers/gdisp/STM32LTDC/board_STM32LTDC_template.h
View file

@ -8,6 +8,8 @@
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#define ALLOW_2ND_LAYER TRUE
static const ltdcConfig driverCfg = {
480, 272, // Width, Height (pixels)
41, 10, // Horizontal, Vertical sync (pixels)
@ -23,8 +25,8 @@ static const ltdcConfig driverCfg = {
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
480, 272, // Size of virtual layer (cx, cy)
LTDC_COLOR_FUCHSIA, // Default color (ARGB8888)
0x980088, // Color key (RGB888)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_FIX1_FIX2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
@ -32,28 +34,47 @@ static const ltdcConfig driverCfg = {
LTDC_LEF_ENABLE // Layer configuration flags
},
LTDC_UNUSED_LAYER_CONFIG // Foreground layer config
#if ALLOW_2ND_LAYER
{ // Foreground layer config (if turned on)
(LLDCOLOR_TYPE *)(SDRAM_DEVICE_ADDR+(480 * 272 * LTDC_PIXELBYTES)), // Frame buffer address
480, 272, // Width, Height (pixels)
480 * LTDC_PIXELBYTES, // Line pitch (bytes)
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
480, 272, // Size of virtual layer (cx, cy)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_MOD1_MOD2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
0xFF, // Constant alpha factor
LTDC_LEF_ENABLE // Layer configuration flags
}
#else
LTDC_UNUSED_LAYER_CONFIG
#endif
};
static GFXINLINE void init_board(GDisplay* g) {
// As we are not using multiple displays we set g->board to NULL as we don't use it.
g->board = 0;
switch(g->controllerdisplay) {
case 0: // Set up for Display 0
// Your init here
break;
}
// This is function only called once with the display for the background layer.
(void)g;
}
static GFXINLINE void post_init_board(GDisplay* g)
{
// This is function may be called twice - once for the background display and once
// for the foreground display.
// Note: It doesn't get called for the foreground display unless gfxconf.h has been
// setup for two displays on this controller.
(void)g;
}
static GFXINLINE void set_backlight(GDisplay* g, uint8_t percent)
{
// This is function may be called with the display for either the foreground
// or the background layer.
// Note: It can't be called for the foreground display unless gfxconf.h has been
// setup for two displays on this controller.
(void)g;
(void)percent;
}

88
drivers/gdisp/STM32LTDC/gdisp_lld_STM32LTDC.c
View file

@ -99,13 +99,15 @@ typedef struct ltdcConfig {
/* Driver local routines. */
/*===========================================================================*/
#define PIXIL_POS(g, x, y) ((y) * driverCfg.bglayer.pitch + (x) * LTDC_PIXELBYTES)
#define PIXEL_ADDR(g, pos) ((LLDCOLOR_TYPE *)((uint8_t *)driverCfg.bglayer.frame+pos))
#define PIXIL_POS(g, x, y) ((y) * ((ltdcLayerConfig *)g->priv)->pitch + (x) * LTDC_PIXELBYTES)
#define PIXEL_ADDR(g, pos) ((LLDCOLOR_TYPE *)((uint8_t *)((ltdcLayerConfig *)g->priv)->frame+pos))
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
static const ltdcLayerConfig layerOff = LTDC_UNUSED_LAYER_CONFIG;
static void _ltdc_reload(void) {
LTDC->SRCR |= LTDC_SRCR_IMR;
while (LTDC->SRCR & (LTDC_SRCR_IMR | LTDC_SRCR_VBR))
@ -210,7 +212,7 @@ static void _ltdc_init(void) {
_ltdc_layer_init(LTDC_Layer1, &driverCfg.bglayer);
// Load the foreground layer
_ltdc_layer_init(LTDC_Layer2, &driverCfg.fglayer);
_ltdc_layer_init(LTDC_Layer2, &layerOff);
// Interrupt handling
// Possible flags - LTDC_IER_RRIE, LTDC_IER_LIE, LTDC_IER_FUIE, LTDC_IER_TERRIE etc
@ -227,6 +229,8 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay* g) {
g->priv = 0;
g->board = 0;
switch(g->controllerdisplay) {
case 0: // Display 0 is the background layer
// Init the board
init_board(g);
@ -238,15 +242,42 @@ LLDSPEC bool_t gdisp_lld_init(GDisplay* g) {
dma2d_init();
#endif
if (!(driverCfg.bglayer.layerflags & LTDC_LEF_ENABLE))
return FALSE;
g->priv = (void *)&driverCfg.bglayer;
// Finish Init the board
post_init_board(g);
// Turn on the back-light
set_backlight(g, GDISP_INITIAL_BACKLIGHT);
break;
case 1: // Display 1 is the foreground layer
if (!(driverCfg.fglayer.layerflags & LTDC_LEF_ENABLE))
return FALSE;
// Load the foreground layer
_ltdc_layer_init(LTDC_Layer2, &driverCfg.fglayer);
_ltdc_reload();
g->priv = (void *)&driverCfg.fglayer;
// Finish Init the board
post_init_board(g);
break;
default: // There is only 1 LTDC in the CPU and only the 2 layers in the LTDC.
return FALSE;
}
// Initialise the GDISP structure
g->g.Width = driverCfg.bglayer.width;
g->g.Height = driverCfg.bglayer.height;
g->g.Width = ((ltdcLayerConfig *)g->priv)->width;
g->g.Height = ((ltdcLayerConfig *)g->priv)->height;
g->g.Orientation = GDISP_ROTATE_0;
g->g.Powermode = powerOn;
g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
@ -282,7 +313,14 @@ LLDSPEC void gdisp_lld_draw_pixel(GDisplay* g) {
while(DMA2D->CR & DMA2D_CR_START);
#endif
#if GDISP_LLD_PIXELFORMAT == GDISP_PIXELFORMAT_RGB888
// As we don't support ARGB pixel types in uGFX yet we will
// use RGB with an inverted alpha value for compatibility
// ie. 0x00FFFFFF is fully opaque white, 0xFFFFFFFF is fully transparent white
PIXEL_ADDR(g, pos)[0] = gdispColor2Native(g->p.color) ^ 0xFF000000;
#else
PIXEL_ADDR(g, pos)[0] = gdispColor2Native(g->p.color);
#endif
}
LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay* g) {
@ -313,7 +351,14 @@ LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay* g) {
while(DMA2D->CR & DMA2D_CR_START);
#endif
#if GDISP_LLD_PIXELFORMAT == GDISP_PIXELFORMAT_RGB888
// As we don't support ARGB pixel types in uGFX yet we will
// use RGB with an inverted alpha value for compatibility
// ie. 0x00FFFFFF is fully opaque white, 0xFFFFFFFF is fully transparent white
color = PIXEL_ADDR(g, pos)[0] ^ 0xFF000000;
#else
color = PIXEL_ADDR(g, pos)[0];
#endif
return gdispNative2Color(color);
}
@ -321,19 +366,6 @@ LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay* g) {
#if GDISP_NEED_CONTROL
LLDSPEC void gdisp_lld_control(GDisplay* g) {
switch(g->p.x) {
case GDISP_CONTROL_POWER:
if (g->g.Powermode == (powermode_t)g->p.ptr)
return;
switch((powermode_t)g->p.ptr) {
case powerOff: case powerOn: case powerSleep: case powerDeepSleep:
// TODO
break;
default:
return;
}
g->g.Powermode = (powermode_t)g->p.ptr;
return;
case GDISP_CONTROL_ORIENTATION:
if (g->g.Orientation == (orientation_t)g->p.ptr)
return;
@ -369,12 +401,6 @@ LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay* g) {
set_backlight(g, (unsigned)g->p.ptr);
g->g.Backlight = (unsigned)g->p.ptr;
return;
case GDISP_CONTROL_CONTRAST:
if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100;
// TODO
g->g.Contrast = (unsigned)g->p.ptr;
return;
}
}
#endif
@ -406,9 +432,6 @@ LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay* g) {
uint32_t lineadd;
uint32_t shape;
// Wait until DMA2D is ready
while(DMA2D->CR & DMA2D_CR_START);
#if GDISP_NEED_CONTROL
switch(g->g.Orientation) {
case GDISP_ROTATE_0:
@ -439,11 +462,22 @@ LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay* g) {
shape = (g->p.cx << 16) | (g->p.cy);
#endif
// Wait until DMA2D is ready
while(DMA2D->CR & DMA2D_CR_START);
// Start the DMA2D
DMA2D->OMAR = (uint32_t)PIXEL_ADDR(g, pos);
DMA2D->OOR = lineadd;
DMA2D->NLR = shape;
#if GDISP_LLD_PIXELFORMAT == GDISP_PIXELFORMAT_RGB888
// As we don't support ARGB pixel types in uGFX yet we will
// use RGB with an inverted alpha value for compatibility
// ie. 0x00FFFFFF is fully opaque white, 0xFFFFFFFF is fully transparent white
DMA2D->OCOLR = (uint32_t)(gdispColor2Native(g->p.color)) ^ 0xFF000000;
#else
DMA2D->OCOLR = (uint32_t)(gdispColor2Native(g->p.color));
#endif
;
DMA2D->CR = DMA2D_CR_MODE_R2M | DMA2D_CR_START;
}

18
drivers/gdisp/STM32LTDC/gdisp_lld_config.h
View file

@ -21,8 +21,15 @@
// Both these pixel formats are supported - pick one.
// RGB565 obviously is faster and uses less RAM but with lower color resolution than RGB888
#if defined(GDISP_LTDC_USE_RGB565) && GDISP_LTDC_USE_RGB565
#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_RGB565
//#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_RGB888
#if GDISP_TOTAL_DISPLAYS > 1
#error "LTDC: You must use RGB888 pixel format with LTDC when using dual layers as only RGB888 currently supports using alpha"
#endif
#else
#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_RGB888
#endif
/*===========================================================================*/
@ -35,9 +42,12 @@
// Accelerated bitfills are also possible but only for GDISP_ROTATE_0
// and if no color translation is required (for now)
#if !GDISP_NEED_CONTROL && GDISP_PIXELFORMAT == GDISP_LLD_PIXELFORMAT
#define GDISP_HARDWARE_BITFILLS TRUE
#endif
// Oops - this is not working and adds little performance benefit
// so we will just disable it for the near future.
// #if !GDISP_NEED_CONTROL && !defined(GDISP_PIXELFORMAT)
// #define GDISP_HARDWARE_BITFILLS TRUE
// #endif
#endif /* GDISP_USE_DMA2D */
#endif /* GFX_USE_GDISP */

7
src/gdisp/gdisp_colors.h
View file

@ -328,6 +328,13 @@ typedef uint16_t colorformat;
#endif
#define HTML2COLOR(h) ((COLOR_TYPE)(HTML2COLOR_R(h) | HTML2COLOR_G(h) | HTML2COLOR_B(h)))
// Special hack to allow alpha on RGB888
#if GDISP_PIXELFORMAT == GDISP_PIXELFORMAT_RGB888
#define GFXTRANSPARENT (0xFF000000)
#define AHTML2COLOR(h) ((h) ^ 0xFF000000)
#define ARGB2COLOR(a,r,g,b) ((((COLOR_TYPE)(((a) ^ 0xFF) & 0xFF)) << 24) | RGB2COLOR_R(r) | RGB2COLOR_G(g) | RGB2COLOR_B(b))
#endif
//-------------------------
// Gray-scale color system
//-------------------------