/**
* g2d_scale_and_blend - apply scaling to source buffer and then blend to destination buffer
*
* @ctx: a pointer to g2d_context structure.
* @src: a pointer to g2d_image structure including image and buffer
* information to source.
* @dst: a pointer to g2d_image structure including image and buffer
* information to destination.
* @src_x: x start position to source buffer.
* @src_y: y start position to source buffer.
* @src_w: width value to source buffer.
* @src_h: height value to source buffer.
* @dst_x: x start position to destination buffer.
* @dst_y: y start position to destination buffer.
* @dst_w: width value to destination buffer.
* @dst_h: height value to destination buffer.
* @op: blend operation type.
*/
int
g2d_scale_and_blend(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
unsigned int src_w, unsigned int src_h, unsigned int dst_x,
unsigned int dst_y, unsigned int dst_w, unsigned int dst_h,
enum e_g2d_op op)
{
union g2d_point_val pt;
union g2d_bitblt_cmd_val bitblt;
union g2d_blend_func_val blend;
unsigned int scale;
unsigned int scale_x, scale_y;
bitblt.val = 0;
blend.val = 0;
if (op == G2D_OP_SRC || op == G2D_OP_CLEAR)
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
else
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
if (dst->buf_type == G2D_IMGBUF_USERPTR)
g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
(unsigned long)&dst->user_ptr[0]);
else
g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
switch (src->select_mode) {
case G2D_SELECT_MODE_NORMAL:
if (src->buf_type == G2D_IMGBUF_USERPTR)
g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
(unsigned long)&src->user_ptr[0]);
else
g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
break;
case G2D_SELECT_MODE_FGCOLOR:
g2d_add_cmd(ctx, FG_COLOR_REG, src->color);
break;
case G2D_SELECT_MODE_BGCOLOR:
g2d_add_cmd(ctx, BG_COLOR_REG, src->color);
break;
default:
fprintf(stderr , "failed to set src.\n");
return -EINVAL;
}
if (src_w == dst_w && src_h == dst_h)
scale = 0;
else {
scale = 1;
scale_x = g2d_get_scaling(src_w, dst_w);
scale_y = g2d_get_scaling(src_h, dst_h);
}
if (src_x + src_w > src->width)
src_w = src->width - src_x;
if (src_y + src_h > src->height)
src_h = src->height - src_y;
if (dst_x + dst_w > dst->width)
dst_w = dst->width - dst_x;
if (dst_y + dst_h > dst->height)
dst_h = dst->height - dst_y;
if (src_w <= 0 || src_h <= 0 || dst_w <= 0 || dst_h <= 0) {
fprintf(stderr, "invalid width or height.\n");
g2d_reset(ctx);
return -EINVAL;
}
if (scale) {
g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
g2d_add_cmd(ctx, SRC_XSCALE_REG, scale_x);
g2d_add_cmd(ctx, SRC_YSCALE_REG, scale_y);
}
bitblt.data.alpha_blend_mode = G2D_ALPHA_BLEND_MODE_ENABLE;
blend.val = g2d_get_blend_op(op);
g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
g2d_add_cmd(ctx, BLEND_FUNCTION_REG, blend.val);
pt.val = 0;
pt.data.x = src_x;
pt.data.y = src_y;
g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = src_x + src_w;
pt.data.y = src_y + src_h;
g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x;
pt.data.y = dst_y;
g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x + dst_w;
pt.data.y = dst_y + dst_h;
g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
return g2d_flush(ctx);
}
/**
* g2d_blend - blend image data in source and destination buffers.
*
* @ctx: a pointer to g2d_context structure.
* @src: a pointer to g2d_image structure including image and buffer
* information to source.
* @dst: a pointer to g2d_image structure including image and buffer
* information to destination.
* @src_x: x start position to source buffer.
* @src_y: y start position to source buffer.
* @dst_x: x start position to destination buffer.
* @dst_y: y start position to destination buffer.
* @w: width value to source and destination buffer.
* @h: height value to source and destination buffer.
* @op: blend operation type.
*/
int
g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x,
unsigned int src_y, unsigned int dst_x, unsigned int dst_y,
unsigned int w, unsigned int h, enum e_g2d_op op)
{
union g2d_point_val pt;
union g2d_bitblt_cmd_val bitblt;
union g2d_blend_func_val blend;
unsigned int src_w = 0, src_h = 0, dst_w = 0, dst_h = 0;
bitblt.val = 0;
blend.val = 0;
if (op == G2D_OP_SRC || op == G2D_OP_CLEAR)
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
else
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
g2d_add_base_addr(ctx, dst, g2d_dst);
g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
switch (src->select_mode) {
case G2D_SELECT_MODE_NORMAL:
g2d_add_base_addr(ctx, src, g2d_src);
g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
break;
case G2D_SELECT_MODE_FGCOLOR:
g2d_add_cmd(ctx, FG_COLOR_REG, src->color);
break;
case G2D_SELECT_MODE_BGCOLOR:
g2d_add_cmd(ctx, BG_COLOR_REG, src->color);
break;
default:
fprintf(stderr , "failed to set src.\n");
return -EINVAL;
}
src_w = w;
src_h = h;
if (src_x + w > src->width)
src_w = src->width - src_x;
if (src_y + h > src->height)
src_h = src->height - src_y;
dst_w = w;
dst_h = h;
if (dst_x + w > dst->width)
dst_w = dst->width - dst_x;
if (dst_y + h > dst->height)
dst_h = dst->height - dst_y;
w = MIN(src_w, dst_w);
h = MIN(src_h, dst_h);
if (w <= 0 || h <= 0) {
fprintf(stderr, "invalid width or height.\n");
g2d_reset(ctx);
return -EINVAL;
}
bitblt.data.alpha_blend_mode = G2D_ALPHA_BLEND_MODE_ENABLE;
blend.val = g2d_get_blend_op(op);
g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
g2d_add_cmd(ctx, BLEND_FUNCTION_REG, blend.val);
pt.val = 0;
pt.data.x = src_x;
pt.data.y = src_y;
g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = src_x + w;
pt.data.y = src_y + h;
g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x;
pt.data.y = dst_y;
g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x + w;
pt.data.y = dst_y + h;
g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
return g2d_flush(ctx);
}
/**
* g2d_copy - copy contents in source buffer to destination buffer.
*
* @ctx: a pointer to g2d_context structure.
* @src: a pointer to g2d_image structure including image and buffer
* information to source.
* @dst: a pointer to g2d_image structure including image and buffer
* information to destination.
* @src_x: x start position to source buffer.
* @src_y: y start position to source buffer.
* @dst_x: x start position to destination buffer.
* @dst_y: y start position to destination buffer.
* @w: width value to source and destination buffers.
* @h: height value to source and destination buffers.
*/
int
g2d_copy(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
unsigned int dst_x, unsigned dst_y, unsigned int w,
unsigned int h)
{
union g2d_rop4_val rop4;
union g2d_point_val pt;
unsigned int src_w = 0, src_h = 0, dst_w = 0, dst_h = 0;
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
g2d_add_base_addr(ctx, dst, g2d_dst);
g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
g2d_add_base_addr(ctx, src, g2d_src);
g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
src_w = w;
src_h = h;
if (src_x + src->width > w)
src_w = src->width - src_x;
if (src_y + src->height > h)
src_h = src->height - src_y;
dst_w = w;
dst_h = w;
if (dst_x + dst->width > w)
dst_w = dst->width - dst_x;
if (dst_y + dst->height > h)
dst_h = dst->height - dst_y;
w = MIN(src_w, dst_w);
h = MIN(src_h, dst_h);
if (w <= 0 || h <= 0) {
fprintf(stderr, "invalid width or height.\n");
g2d_reset(ctx);
return -EINVAL;
}
pt.val = 0;
pt.data.x = src_x;
pt.data.y = src_y;
g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = src_x + w;
pt.data.y = src_y + h;
g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x;
pt.data.y = dst_y;
g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x + w;
pt.data.y = dst_y + h;
g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
rop4.val = 0;
rop4.data.unmasked_rop3 = G2D_ROP3_SRC;
g2d_add_cmd(ctx, ROP4_REG, rop4.val);
return g2d_flush(ctx);
}
/**
* g2d_copy_with_scale - copy contents in source buffer to destination buffer
* scaling up or down properly.
*
* @ctx: a pointer to g2d_context structure.
* @src: a pointer to g2d_image structure including image and buffer
* information to source.
* @dst: a pointer to g2d_image structure including image and buffer
* information to destination.
* @src_x: x start position to source buffer.
* @src_y: y start position to source buffer.
* @src_w: width value to source buffer.
* @src_h: height value to source buffer.
* @dst_x: x start position to destination buffer.
* @dst_y: y start position to destination buffer.
* @dst_w: width value to destination buffer.
* @dst_h: height value to destination buffer.
* @negative: indicate that it uses color negative to source and
* destination buffers.
*/
int
g2d_copy_with_scale(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x,
unsigned int src_y, unsigned int src_w,
unsigned int src_h, unsigned int dst_x,
unsigned int dst_y, unsigned int dst_w,
unsigned int dst_h, unsigned int negative)
{
union g2d_rop4_val rop4;
union g2d_point_val pt;
unsigned int scale;
unsigned int scale_x, scale_y;
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
g2d_add_base_addr(ctx, dst, g2d_dst);
g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
g2d_add_cmd(ctx, SRC_REPEAT_MODE_REG, src->repeat_mode);
if (src->repeat_mode == G2D_REPEAT_MODE_PAD)
g2d_add_cmd(ctx, SRC_PAD_VALUE_REG, dst->color);
g2d_add_base_addr(ctx, src, g2d_src);
g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
if (src_w == dst_w && src_h == dst_h)
scale = 0;
else {
scale = 1;
scale_x = g2d_get_scaling(src_w, dst_w);
scale_y = g2d_get_scaling(src_h, dst_h);
}
if (src_x + src_w > src->width)
src_w = src->width - src_x;
if (src_y + src_h > src->height)
src_h = src->height - src_y;
if (dst_x + dst_w > dst->width)
dst_w = dst->width - dst_x;
if (dst_y + dst_h > dst->height)
dst_h = dst->height - dst_y;
if (src_w <= 0 || src_h <= 0 || dst_w <= 0 || dst_h <= 0) {
fprintf(stderr, "invalid width or height.\n");
g2d_reset(ctx);
return -EINVAL;
}
if (negative) {
g2d_add_cmd(ctx, BG_COLOR_REG, 0x00FFFFFF);
rop4.val = 0;
rop4.data.unmasked_rop3 = G2D_ROP3_SRC^G2D_ROP3_DST;
g2d_add_cmd(ctx, ROP4_REG, rop4.val);
} else {
rop4.val = 0;
rop4.data.unmasked_rop3 = G2D_ROP3_SRC;
g2d_add_cmd(ctx, ROP4_REG, rop4.val);
}
if (scale) {
g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
g2d_add_cmd(ctx, SRC_XSCALE_REG, scale_x);
g2d_add_cmd(ctx, SRC_YSCALE_REG, scale_y);
}
pt.val = 0;
pt.data.x = src_x;
pt.data.y = src_y;
g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = src_x + src_w;
pt.data.y = src_y + src_h;
g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x;
pt.data.y = dst_y;
g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x + dst_w;
pt.data.y = dst_y + dst_h;
g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
return g2d_flush(ctx);
}
static long g2d_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
g2d_params params;
int ret = -1;
struct g2d_dma_info dma_info;
switch(cmd) {
case G2D_GET_MEMORY :
ret = copy_to_user((unsigned int *)arg,
&(g2d_dev->reserved_mem.base), sizeof(g2d_dev->reserved_mem.base));
if (ret) {
FIMG2D_ERROR("error : copy_to_user\n");
return -EINVAL;
}
return 0;
case G2D_GET_MEMORY_SIZE :
ret = copy_to_user((unsigned int *)arg,
&(g2d_dev->reserved_mem.size), sizeof(g2d_dev->reserved_mem.size));
if (ret) {
FIMG2D_ERROR("error : copy_to_user\n");
return -EINVAL;
}
return 0;
case G2D_DMA_CACHE_CLEAN :
case G2D_DMA_CACHE_FLUSH :
mutex_lock(&g2d_dev->lock);
ret = copy_from_user(&dma_info, (struct g2d_dma_info *)arg, sizeof(dma_info));
if (ret) {
FIMG2D_ERROR("error : copy_from_user\n");
mutex_unlock(&g2d_dev->lock);
return -EINVAL;
}
if (dma_info.addr == 0) {
FIMG2D_ERROR("addr Null Error!!!\n");
mutex_unlock(&g2d_dev->lock);
return -EINVAL;
}
g2d_mem_cache_op(cmd, (void *)dma_info.addr, dma_info.size);
mutex_unlock(&g2d_dev->lock);
return 0;
case G2D_SYNC :
g2d_check_fifo_state_wait(g2d_dev);
ret = 0;
goto g2d_ioctl_done;
case G2D_RESET :
g2d_reset(g2d_dev);
FIMG2D_ERROR("G2D TimeOut Error\n");
ret = 0;
goto g2d_ioctl_done;
case G2D_BLIT:
if (atomic_read(&g2d_dev->ready_to_run) == 0)
goto g2d_ioctl_done2;
mutex_lock(&g2d_dev->lock);
g2d_clk_enable(g2d_dev);
if (copy_from_user(¶ms, (struct g2d_params *)arg, sizeof(g2d_params))) {
FIMG2D_ERROR("error : copy_from_user\n");
goto g2d_ioctl_done;
}
g2d_dev->irq_handled = 0;
atomic_set(&g2d_dev->in_use, 1);
if (atomic_read(&g2d_dev->ready_to_run) == 0)
goto g2d_ioctl_done;
if (!g2d_do_blit(g2d_dev, ¶ms)) {
g2d_dev->irq_handled = 1;
goto g2d_ioctl_done;
}
if (!(params.flag.render_mode & G2D_HYBRID_MODE)) {
if(!(file->f_flags & O_NONBLOCK)) {
if (!g2d_wait_for_finish(g2d_dev, ¶ms))
goto g2d_ioctl_done;
}
} else {
ret = 0;
goto g2d_ioctl_done2;
}
ret = 0;
break;
default :
goto g2d_ioctl_done2;
break;
}
g2d_ioctl_done :
g2d_clk_disable(g2d_dev);
mutex_unlock(&g2d_dev->lock);
atomic_set(&g2d_dev->in_use, 0);
g2d_ioctl_done2 :
return ret;
}
