drivers/libglamo/blit.h

   1 /*
   2  * Image blitting support using the 2D engine.
   3  *
   4  * Copyright (C) 2007 OpenMoko, Inc.
   5  * Author: Chia-I Wu <olv@openmoko.org>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 or
  10  * (at your option) version 3 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22 #ifndef _BLIT_H_
  23 #define _BLIT_H_
  24
  25 #include "dma.h"
  26
  27 enum glamo_blit_format {
  28         GLAMO_BLIT_FORMAT_I420,
  29         GLAMO_BLIT_FORMAT_YV16,
  30         GLAMO_BLIT_FORMAT_YUY2,
  31 };
  32
  33 enum glamo_blit_rotation {
  34         GLAMO_BLIT_ROTATION_0,
  35         GLAMO_BLIT_ROTATION_90,
  36         GLAMO_BLIT_ROTATION_270,
  37         GLAMO_BLIT_ROTATION_180,
  38         GLAMO_BLIT_ROTATION_MIRROR,
  39         GLAMO_BLIT_ROTATION_FLIP
  40 };
  41
  42 struct glamo_blit_image {
  43         enum glamo_blit_format format;
  44         const unsigned char *data;
  45         int width;
  46         int height;
  47         int num_planes; /* 1 or 3 */
  48         int pitches[3];
  49         int offsets[3];
  50 };
  51
  52 struct glamo_blit_manager {
  53         struct glamo_dma_manager *dma;
  54         enum glamo_blit_format format;
  55 };
  56
  57 struct glamo_blit_manager *glamo_blit_new(struct glamo_dma_manager *dma, enum glamo_blit_format format);
  58 void glamo_blit_destroy(struct glamo_blit_manager *blit);
  59 void glamo_blit_wait(struct glamo_blit_manager *blit);
  60 void glamo_blit_dump(struct glamo_blit_manager *blit);
  61
  62 void glamo_blit_rotate(struct glamo_blit_manager *blit,
  63                 enum glamo_blit_rotation);
  64
  65 struct glamo_blit_image *glamo_blit_new_image(struct glamo_blit_manager *blit,
  66                 const unsigned char *data, int width, int height);
  67 void glamo_blit_destroy_image(struct glamo_blit_manager *blit, struct glamo_blit_image *image);
  68 void glamo_blit_show_image(struct glamo_blit_manager *blit, struct glamo_blit_image *image,
  69                 int x, int y, int width, int height);
  70 void glamo_blit_dump_image(struct glamo_blit_manager *blit, struct glamo_blit_image *image);
  71
  72 #endif /* _BLIT_H */