static void fic_draw_cursor(AVCodecContext *avctx, int cur_x, int cur_y) { FICContext *ctx = avctx->priv_data; uint8_t *ptr = ctx->cursor_buf; uint8_t *dstptr[3]; uint8_t planes[4][1024]; uint8_t chroma[3][256]; int i, j, p; /* Convert to YUVA444. */ for (i = 0; i < 1024; i++) { planes[0][i] = av_clip_uint8((( 25 * ptr[0] + 129 * ptr[1] + 66 * ptr[2]) / 255) + 16); planes[1][i] = av_clip_uint8(((-38 * ptr[0] + 112 * ptr[1] + -74 * ptr[2]) / 255) + 128); planes[2][i] = av_clip_uint8(((-18 * ptr[0] + 112 * ptr[1] + -94 * ptr[2]) / 255) + 128); planes[3][i] = ptr[3]; ptr += 4; } /* Subsample chroma. */ for (i = 0; i < 32; i += 2) for (j = 0; j < 32; j += 2) for (p = 0; p < 3; p++) chroma[p][16 * (i / 2) + j / 2] = (planes[p + 1][32 * i + j ] + planes[p + 1][32 * i + j + 1] + planes[p + 1][32 * (i + 1) + j ] + planes[p + 1][32 * (i + 1) + j + 1]) / 4; /* Seek to x/y pos of cursor. */ for (i = 0; i < 3; i++) dstptr[i] = ctx->final_frame->data[i] + (ctx->final_frame->linesize[i] * (cur_y >> !!i)) + (cur_x >> !!i) + !!i; /* Copy. */ for (i = 0; i < FFMIN(32, avctx->height - cur_y) - 1; i += 2) { int lsize = FFMIN(32, avctx->width - cur_x); int csize = lsize / 2; fic_alpha_blend(dstptr[0], planes[0] + i * 32, lsize, planes[3] + i * 32); fic_alpha_blend(dstptr[0] + ctx->final_frame->linesize[0], planes[0] + (i + 1) * 32, lsize, planes[3] + (i + 1) * 32); fic_alpha_blend(dstptr[1], chroma[0] + (i / 2) * 16, csize, chroma[2] + (i / 2) * 16); fic_alpha_blend(dstptr[2], chroma[1] + (i / 2) * 16, csize, chroma[2] + (i / 2) * 16); dstptr[0] += ctx->final_frame->linesize[0] * 2; dstptr[1] += ctx->final_frame->linesize[1]; dstptr[2] += ctx->final_frame->linesize[2]; } }
static void fic_draw_cursor(AVCodecContext *avctx, int cur_x, int cur_y) { FICContext *ctx = avctx->priv_data; uint8_t *ptr = ctx->cursor_buf; uint8_t *dstptr[3]; uint8_t planes[4][1024]; uint8_t chroma[3][256]; int i, j, p;   for (i = 0; i < 1024; i++) { planes[0][i] = av_clip_uint8((( 25 * ptr[0] + 129 * ptr[1] + 66 * ptr[2]) / 255) + 16); planes[1][i] = av_clip_uint8(((-38 * ptr[0] + 112 * ptr[1] + -74 * ptr[2]) / 255) + 128); planes[2][i] = av_clip_uint8(((-18 * ptr[0] + 112 * ptr[1] + -94 * ptr[2]) / 255) + 128); planes[3][i] = ptr[3]; ptr += 4; }   for (i = 0; i < 32; i += 2) for (j = 0; j < 32; j += 2) for (p = 0; p < 3; p++) chroma[p][16 * (i / 2) + j / 2] = (planes[p + 1][32 * i + j ] + planes[p + 1][32 * i + j + 1] + planes[p + 1][32 * (i + 1) + j ] + planes[p + 1][32 * (i + 1) + j + 1]) / 4;   for (i = 0; i < 3; i++) dstptr[i] = ctx->final_frame->data[i] + (ctx->final_frame->linesize[i] * (cur_y >> !!i)) + (cur_x >> !!i) + !!i;   for (i = 0; i < FFMIN(32, avctx->height - cur_y) - 1; i += 2) { int lsize = FFMIN(32, avctx->width - cur_x); int csize = lsize / 2; fic_alpha_blend(dstptr[0], planes[0] + i * 32, lsize, planes[3] + i * 32); fic_alpha_blend(dstptr[0] + ctx->final_frame->linesize[0], planes[0] + (i + 1) * 32, lsize, planes[3] + (i + 1) * 32); fic_alpha_blend(dstptr[1], chroma[0] + (i / 2) * 16, csize, chroma[2] + (i / 2) * 16); fic_alpha_blend(dstptr[2], chroma[1] + (i / 2) * 16, csize, chroma[2] + (i / 2) * 16); dstptr[0] += ctx->final_frame->linesize[0] * 2; dstptr[1] += ctx->final_frame->linesize[1]; dstptr[2] += ctx->final_frame->linesize[2]; } }