尝试了很多次,不管使用 G2D_CMD_BITBLT_H 还是 G2D_CMD_BLD_H
像素格式src和dst页面都使用相同格式 G2D_FORMAT_ARGB8888
不管怎么设置, G2D_PIXEL_ALPHA都不起作用,也就是说像素的ALPHA通道没排上用场
甚至画一个空页面到目标页面,整个源页面像素值都为0,,都能得到一个黑框,正常情况下因为alpha为0,根本就画不出来,
给我的感觉就是,d1-h的像素alpha用不了,没有这个功能??!!!
还有G2D_CMD_BLD_H的关键色也不起作用??!!!
谁能帮帮我,到底是哪里的问题??
layerbuf src_buf,src_buf2;
make_a_argb_buf(&src_buf, 512,512,512,512,0);
make_a_argb_buf(&src_buf2, 512,512,512,512,0);
g2d_blt_h blh;
memset(&blh, 0, sizeof(blh));
blh.flag_h = G2D_BLT_NONE_H;
//blh.flag_h = G2D_BLT_MERGEPEN;
blh.src_image_h.format = G2D_FORMAT_ARGB8888;
blh.src_image_h.width = src_buf.width;
blh.src_image_h.height = src_buf.height;
blh.src_image_h.align[0] = 0;
blh.src_image_h.align[1] = 0;
blh.src_image_h.align[2] = 0;
blh.src_image_h.clip_rect.x = 0;
blh.src_image_h.clip_rect.y = 0;
blh.src_image_h.clip_rect.w = src_buf.width;
blh.src_image_h.clip_rect.h = src_buf.height;
blh.src_image_h.mode = G2D_PIXEL_ALPHA;
//blh.src_image_h.use_phy_addr = 1;
//blh.src_image_h.haddr[0] = src_buf.phy_addr>>32;
//blh.src_image_h.laddr[0] = src_buf.phy_addr;
blh.src_image_h.fd = src_buf.fd;
//blh.src_image_h.alpha = 0xFF;
blh.dst_image_h.format = G2D_FORMAT_ARGB8888;
blh.dst_image_h.width = src_buf2.width;
blh.dst_image_h.height = src_buf2.height;
blh.dst_image_h.align[0] = 0;
blh.dst_image_h.clip_rect.x = 0;
blh.dst_image_h.clip_rect.y = 0;
blh.dst_image_h.clip_rect.w = src_buf2.width;
blh.dst_image_h.clip_rect.h = src_buf2.height;
blh.dst_image_h.mode = G2D_PIXEL_ALPHA;// G2D_PIXEL_ALPHA G2D_GLOBAL_ALPHA
//blh.dst_image_h.use_phy_addr = 1;
//blh.dst_image_h.haddr[0] = src_buf2.phy_addr>>32;
//blh.dst_image_h.laddr[0] = src_buf2.phy_addr;
blh.dst_image_h.fd = src_buf2.fd;
//blh.dst_image_h.alpha = 0xFF;
//ret = ioctl(g2d_fd, G2D_CMD_BITBLT_H, &blh);
//if(ret){
// printf("ioctl G2D_CMD_BITBLT_H fail ret = %d\n",ret);
// }
g2d_bld blend;
memset(&blend, 0,sizeof(blend));
blend.bld_cmd = G2D_BLD_SRCOVER;
blend.ck_para.match_rule = 0;
blend.ck_para.max_color = 5; //关键色就算把范围设置为0-0xFFFFFFFF 都不起作用
blend.ck_para.min_color = 0;
memcpy(&blend.src_image[0],&blh.src_image_h,sizeof(g2d_image_enh));
memcpy(&blend.src_image[1],&blh.src_image_h,sizeof(g2d_image_enh));
memcpy(&blend.dst_image,&blh.dst_image_h,sizeof(g2d_image_enh));
ret = ioctl(g2d_fd, G2D_CMD_BLD_H, &blend);
if(ret)
{
printf("ioctl G2D_CMD_BLD_H fail ret = %d\n",ret);
}
