int GGI_lin16_putbox(struct ggi_visual *vis, int x, int y, int w, int h, const void *buffer)
{
const uint16_t *src = buffer;
uint8_t *dest;
int srcwidth = w;
int destwidth = LIBGGI_FB_W_STRIDE(vis);
LIBGGICLIP_PUTBOX(vis,x,y,w,h,src,srcwidth, *1);
PREPARE_FB(vis);
dest = (uint8_t *)LIBGGI_CURWRITE(vis) + (y*destwidth + x*2);
/* Width should be in bytes */
w *= 2;
/* Optimized full-width case */
if (w == destwidth && x == 0) {
memcpy(dest, src, (size_t)(w*h));
return 0;
}
while (h > 0) {
memcpy(dest, src, (size_t)(w));
dest += destwidth;
src += srcwidth;
h--;
}
return 0;
}
static inline void
do_drawhline(ggi_visual *vis, int x, int y, int w)
{
int i, w32;
uint32_t *fb32;
uint16_t *fb16;
uint32_t val = LIBGGI_GC_FGCOLOR(vis) | (LIBGGI_GC_FGCOLOR(vis) << 16);
PREPARE_FB(vis);
fb16 = (uint16_t*)((uint8_t*)LIBGGI_CURWRITE(vis)
+ y*LIBGGI_FB_W_STRIDE(vis) + x*2);
if (x%2) {
*(fb16++) = val;
w--;
}
w32 = w/2;
fb32 = (uint32_t*) fb16;
for (i = 0; i < w32; i++) {
*(fb32++) = val;
}
if (w%2) {
fb16 = (uint16_t *) fb32;
*fb16 = val;
}
}
static inline void
do_drawhline(struct ggi_visual *vis, int x, int y, int w)
{
uint8_t *fb;
uint8_t fg;
fb = (uint8_t *) LIBGGI_CURWRITE(vis)+y*LIBGGI_FB_W_STRIDE(vis)+(x/2);
fg = (uint8_t) LIBGGI_GC_FGCOLOR(vis) | (LIBGGI_GC_FGCOLOR(vis)<<4);
PREPARE_FB(vis);
/* x is odd. Read-modify-write right pixel. */
if (x & 0x01) {
*fb = (*fb & 0x0f) | (fg & 0xf0);
fb++;
w--;
}
memset(fb, fg, (size_t)(w/2));
/* Dangling right pixel. */
if (w & 0x01) {
fb += w/2;
*fb = (*fb & 0xf0) | (fg & 0x0f);
}
}
int
GGI_lin8_copybox(ggi_visual *vis, int x, int y, int w, int h, int nx, int ny)
{
uint8_t *src, *dest;
int stride = LIBGGI_FB_W_STRIDE(vis);
int line;
LIBGGICLIP_COPYBOX(vis, x, y, w, h, nx, ny);
PREPARE_FB(vis);
if (ny < y) {
src = (uint8_t *)LIBGGI_CURREAD(vis) + y*stride + x;
dest = (uint8_t *)LIBGGI_CURWRITE(vis) + ny*stride + nx;
for (line=0; line < h; line++, src += stride, dest += stride) {
memmove(dest, src, (size_t)(w));
}
} else {
src = (uint8_t *)LIBGGI_CURREAD(vis) + (y+h-1)*stride + x;
dest = (uint8_t *)LIBGGI_CURWRITE(vis) + (ny+h-1)*stride + nx;
for (line=0; line < h; line++, src -= stride, dest -= stride) {
memmove(dest, src, (size_t)(w));
}
}
return 0;
}
int GGI_t32_getpixela(ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
PREPARE_FB(vis);
*pixel = *PIXEL_RADDR(vis, x, y);
return 0;
}
int GGI_t32_drawpixel_nca(ggi_visual *vis, int x, int y)
{
PREPARE_FB(vis);
*PIXEL_WADDR(vis, x, y) = LIBGGI_GC_FGCOLOR(vis);
return 0;
}
int GGI_t32_putpixel_nca(ggi_visual *vis, int x, int y, ggi_pixel col)
{
PREPARE_FB(vis);
*PIXEL_WADDR(vis, x, y) = col;
return 0;
}
int
GGI_t16_getpixel_nca(struct ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
PREPARE_FB(vis);
*pixel = *PIXEL_RADDR(vis, x, y);
return 0;
}
int GGI_t16_drawpixela(struct ggi_visual *vis, int x, int y)
{
CHECKXY(vis, x, y);
PREPARE_FB(vis);
*PIXEL_WADDR(vis, x, y) = LIBGGI_GC_FGCOLOR(vis);
return 0;
}
int GGI_t16_putpixela(struct ggi_visual *vis, int x, int y, ggi_pixel col)
{
CHECKXY(vis, x, y);
PREPARE_FB(vis);
*PIXEL_WADDR(vis, x, y) = col;
return 0;
}
int
GGI_lin32_getpixel_nca(struct ggi_visual *vis,int x,int y,ggi_pixel *pixel)
{
PREPARE_FB(vis);
*pixel = *((uint32_t *) ((uint8_t *)LIBGGI_CURREAD(vis)
+ y*LIBGGI_FB_R_STRIDE(vis)+x*sizeof(uint32_t)));
return 0;
}
int GGI_lin32_putpixel_nca(struct ggi_visual *vis,int x,int y,ggi_pixel col)
{
PREPARE_FB(vis);
*((uint32_t *) ((uint8_t *)LIBGGI_CURWRITE(vis)
+ y*LIBGGI_FB_W_STRIDE(vis)+x*sizeof(uint32_t)))
= col;
return 0;
}
int GGI_lin32_drawpixel_nca(struct ggi_visual *vis,int x,int y)
{
PREPARE_FB(vis);
*((uint32_t *) ((uint8_t *)LIBGGI_CURWRITE(vis)
+ y*LIBGGI_FB_W_STRIDE(vis)+x*sizeof(uint32_t)))
= LIBGGI_GC_FGCOLOR(vis);
return 0;
}
int GGI_lin16_gethline(ggi_visual *vis, int x, int y, int w, void *buffer)
{
uint8_t *mem;
PREPARE_FB(vis);
mem = (uint8_t *)LIBGGI_CURREAD(vis) + y*LIBGGI_FB_R_STRIDE(vis) + x*2;
memcpy(buffer, mem, (size_t)(w*2));
return 0;
}
int GGI_lin8_crossblit(ggi_visual *src, int sx, int sy, int w, int h,
ggi_visual *dst, int dx, int dy)
{
LIBGGICLIP_COPYBOX(dst,sx,sy,w,h,dx,dy);
PREPARE_FB(dst);
/* Check if the src-read and dst-write buffers are in the same layout
and that the destination pixelformat is sane.
*/
if (src->r_frame && src->r_frame->layout == dst->w_frame->layout &&
dst->w_frame->buffer.plb.pixelformat->stdformat != 0) {
uint32_t srcformat
= src->r_frame->buffer.plb.pixelformat->stdformat;
uint32_t dstformat
= dst->w_frame->buffer.plb.pixelformat->stdformat;
int pixels = w*h;
PREPARE_FB(src);
/* These are the accelerated cases. If neither suits then
* fall back to the default.
*/
if (srcformat == dstformat && pixels > 512) {
if ((dst->palette->clut.size ==
src->palette->clut.size) &&
!memcmp(dst->palette->clut.data,
src->palette->clut.data,
sizeof(ggi_color)*dst->palette->clut.size)) {
crossblit_same(src, sx, sy, w, h,
dst, dx, dy);
} else {
crossblit_8_to_8(src, sx, sy, w, h,
dst, dx, dy);
}
return 0;
}
}
fallback(src, sx, sy, w, h, dst, dx, dy);
return 0;
}
int GGI_lin16_puthline(ggi_visual *vis, int x, int y, int w, const void *buffer)
{
const uint16_t *buf16 = buffer;
uint8_t *mem;
LIBGGICLIP_XYW_BUFMOD(vis, x, y, w, buf16, *1);
PREPARE_FB(vis);
mem = (uint8_t *)LIBGGI_CURWRITE(vis) + y*LIBGGI_FB_W_STRIDE(vis) + x*2;
memcpy(mem, buf16, (size_t)(w*2));
return 0;
}
int GGI_ilbm_getpixela(ggi_visual *vis, int x, int y, ggi_pixel *pixel)
{
ggi_pixel col = 0;
uint16_t *dest;
uint16_t shift = 15 - (x & 15);
int plane_add = LIBGGI_R_PLAN(vis).next_plane / 2;
int i, depth = GT_DEPTH(LIBGGI_GT(vis));
PREPARE_FB(vis);
dest = PIXEL_RADDR(vis, x, y);
for (i=0; i < depth; i++) {
col |= ((*dest >> shift) & 1) << i;
dest += plane_add;
}
*pixel = col;
return 0;
}
int GGI_m2164w_crossblit(ggi_visual *src, int sx, int sy, int w, int h,
ggi_visual *dst, int dx, int dy)
{
/* Software clip so we don't read/write unused data. */
LIBGGICLIP_COPYBOX(dst, sx, sy, w, h, dx, dy);
if (src->r_frame && src->r_frame->layout == dst->w_frame->layout) {
uint32_t srcformat
= src->r_frame->buffer.plb.pixelformat->stdformat;
PREPARE_FB(src);
switch (srcformat) {
case GGI_DB_STD_24a32p8r8g8b8:
case GGI_DB_STD_24a32p8b8g8r8:
dbblit_32bpp(src, sx, sy, w, h, dst, dx, dy, srcformat);
return 0;
}
}
return M2164W_PRIV(dst)->crossblit(src, sx, sy, w, h, dst, dx, dy);
}
int GGI_lin16_drawbox(struct ggi_visual *vis, int x, int y, int origw, int h)
{
uint32_t *buf32;
uint16_t *buf16;
uint32_t val;
int linediff, oddx;
LIBGGICLIP_XYWH(vis, x, y, origw, h);
PREPARE_FB(vis);
val = LIBGGI_GC_FGCOLOR(vis) | (LIBGGI_GC_FGCOLOR(vis) << 16);
buf16 = (uint16_t*)((uint8_t*)LIBGGI_CURWRITE(vis)
+ y*LIBGGI_FB_W_STRIDE(vis) + x*2);
linediff = LIBGGI_FB_W_STRIDE(vis) - origw*2;
if (x%2) oddx = 1;
else oddx = 0;
while (h--) {
int w = origw;
if (oddx) {
*(buf16++) = val;
w--;
}
buf32 = (uint32_t*) buf16;
while (w > 1) {
*(buf32++) = val;
w -= 2;
}
buf16 = (uint16_t*) buf32;
if (w) {
*(buf16++) = val;
}
buf16 = (uint16_t*) ((uint8_t*)buf16 + linediff);
}
return 0;
}
int GGI_ilbm_putpixel_nca(ggi_visual *vis, int x, int y, ggi_pixel col)
{
uint16_t *dest;
uint16_t mask = 0x8000 >> (x & 15);
int plane_add = LIBGGI_W_PLAN(vis).next_plane / 2;
int i;
PREPARE_FB(vis);
dest = PIXEL_WADDR(vis, x, y);
for (i=GT_DEPTH(LIBGGI_GT(vis)); i > 0; i--) {
if (col & 1) {
*dest |= mask;
} else {
*dest &= ~mask;
}
col >>= 1; dest += plane_add;
}
return 0;
}
int GGI_lin8_putc(struct ggi_visual *vis, int x, int y, char c)
{
#define char_width 8
#define char_height 8
int offset, x_run, y_run;
uint8_t *bitmap;
bitmap = (uint8_t *)(font) + ( c * char_height );
x_run = char_width;
y_run = char_height;
offset = 0;
{
int delta;
delta = LIBGGI_GC(vis)->cliptl.x - x;
if ( delta > 0 ) {
if ( delta >= x_run ) {
return 0;
} else {
x_run -= delta;
offset += delta;
x += delta;
}
}
delta = ( x + x_run ) - LIBGGI_GC(vis)->clipbr.x;
if ( delta > 0 ) {
if ( delta >= x_run ) {
return 0;
} else {
x_run -= delta;
}
}
delta = LIBGGI_GC(vis)->cliptl.y - y;
if ( delta > 0 ) {
if ( delta >= y_run ) {
return 0;
} else {
y_run -= delta;
bitmap += delta;
y += delta;
}
}
delta = ( y + y_run ) - LIBGGI_GC(vis)->clipbr.y;
if ( delta > 0 ) {
if ( delta >= y_run ) {
return 0;
} else {
y_run -= delta;
}
}
}
{
int y_iter;
register uint8_t *fb;
int add_stride;
PREPARE_FB(vis);
add_stride = LIBGGI_FB_W_STRIDE(vis);
fb = (uint8_t *)LIBGGI_CURWRITE(vis) + ( y * add_stride ) + x;
add_stride -= x_run;
y_run += y; x_run += x;
for ( y_iter = y ; y_iter < y_run ; y_iter++, bitmap++,
fb += add_stride )
{
register int x_iter;
register uint8_t row;
row = *bitmap << offset;
for ( x_iter = x ; x_iter < x_run ; x_iter++,
row <<= 1, fb++ )
{
*fb = ( row & 128 )
? (uint8_t)LIBGGI_GC_FGCOLOR(vis)
: (uint8_t)LIBGGI_GC_BGCOLOR(vis);
}
}
}
return 0;
#undef char_width
#undef char_height
}