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arch/sim: sim support 16bbp

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Signed-off-by: qinshijing <qinshijing@xiaomi.com>
This commit is contained in:
qinshijing 2023-10-26 14:06:49 +08:00 committed by Xiang Xiao
parent 749655d785
commit e5eabbb411
1 changed files with 100 additions and 2 deletions
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102
arch/sim/src/sim/posix/sim_x11framebuffer.c
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@ -39,6 +39,29 @@
* Public Data
****************************************************************************/
typedef union
{
struct
{
uint16_t blue : 5;
uint16_t green : 6;
uint16_t red : 5;
};
uint16_t full;
} x11_color16_t;
typedef union
{
struct
{
uint8_t blue;
uint8_t green;
uint8_t red;
uint8_t alpha;
};
uint32_t full;
} x11_color32_t;
/* Also used in sim_x11eventloop */
Display *g_display;
@ -58,9 +81,14 @@ static XImage *g_image;
static char *g_framebuffer;
static unsigned short g_fbpixelwidth;
static unsigned short g_fbpixelheight;
static int g_fbbpp;
static int g_fblen;
static int g_fbcount;
static int g_shmcheckpoint = 0;
static int b_useshm;
static unsigned char *g_trans_framebuffer;
/****************************************************************************
* Private Functions
****************************************************************************/
@ -348,6 +376,27 @@ shmerror:
return 0;
}
/****************************************************************************
* Name: sim_x11depth16to32
****************************************************************************/
static inline void sim_x11depth16to32(void *d_mem, size_t size,
const void *s_mem)
{
x11_color32_t *dst = d_mem;
const x11_color16_t *src = s_mem;
for (size /= 4; size; size--)
{
dst->red = (src->red * 263 + 7) >> 5;
dst->green = (src->green * 259 + 3) >> 6;
dst->blue = (src->blue * 263 + 7) >> 5;
dst->alpha = 0xff;
dst++;
src++;
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -373,6 +422,11 @@ int sim_x11initialize(unsigned short width, unsigned short height,
g_fbpixelwidth = width;
g_fbpixelheight = height;
if (fbcount < 1)
{
return -EINVAL;
}
/* Create the X11 window */
display = sim_x11createframe();
@ -396,6 +450,11 @@ int sim_x11initialize(unsigned short width, unsigned short height,
depth = 32;
}
if (depth != CONFIG_SIM_FBBPP && depth != 32 && CONFIG_SIM_FBBPP != 16)
{
return -1;
}
*bpp = depth;
*stride = (depth * width / 8);
*fblen = (*stride * height);
@ -404,7 +463,32 @@ int sim_x11initialize(unsigned short width, unsigned short height,
sim_x11mapsharedmem(display, windowattributes.depth, *fblen, fbcount);
*fbmem = (void *)g_framebuffer;
g_fbbpp = depth;
g_fblen = *fblen;
g_fbcount = fbcount;
/* Create conversion framebuffer */
if (depth == 32 && CONFIG_SIM_FBBPP == 16)
{
*bpp = CONFIG_SIM_FBBPP;
*stride = (CONFIG_SIM_FBBPP * width / 8);
*fblen = (*stride * height);
g_trans_framebuffer = malloc((*fblen) * fbcount);
if (g_trans_framebuffer == NULL)
{
syslog(LOG_ERR, "Failed to allocate g_trans_framebuffer\n");
return -1;
}
*fbmem = g_trans_framebuffer;
}
else
{
*fbmem = g_framebuffer;
}
g_display = display;
return 0;
}
@ -454,7 +538,14 @@ int sim_x11setoffset(unsigned int offset)
return -ENODEV;
}
g_image->data = g_framebuffer + offset;
if (g_fbbpp == 32 && CONFIG_SIM_FBBPP == 16)
{
g_image->data = g_framebuffer + (offset << 1);
}
else
{
g_image->data = g_framebuffer + offset;
}
return 0;
}
@ -527,6 +618,13 @@ int sim_x11update(void)
g_fbpixelwidth, g_fbpixelheight);
}
if (g_fbbpp == 32 && CONFIG_SIM_FBBPP == 16)
{
sim_x11depth16to32(g_framebuffer,
g_fblen * g_fbcount,
g_trans_framebuffer);
}
XSync(g_display, 0);
return 0;