src/mesa/drivers/dri/i965/intel_image.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2006 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef INTEL_IMAGE_H
  29 #define INTEL_IMAGE_H
  30
  31 /** @file intel_image.h
  32  *
  33  * Structure definitions and prototypes for __DRIimage, the driver-private
  34  * structure backing EGLImage or a drawable in DRI3.
  35  *
  36  * The __DRIimage is passed around the loader code (src/glx and src/egl), but
  37  * it's opaque to that code and may only be accessed by loader extensions
  38  * (mostly located in intel_screen.c).
  39  */
  40
  41 #include <stdbool.h>
  42 #include <xf86drm.h>
  43
  44 #include "main/mtypes.h"
  45 #include "intel_bufmgr.h"
  46 #include <GL/internal/dri_interface.h>
  47
  48 #ifdef __cplusplus
  49 extern "C" {
  50 #endif
  51
  52 /**
  53  * Used with images created with image_from_names
  54  * to help support planar images.
  55  */
  56 struct intel_image_format {
  57    int fourcc;
  58    int components;
  59    int nplanes;
  60    struct {
  61       int buffer_index;
  62       int width_shift;
  63       int height_shift;
  64       uint32_t dri_format;
  65       int cpp;
  66    } planes[3];
  67 };
  68
  69 struct __DRIimageRec {
  70    drm_intel_bo *bo;
  71    uint32_t pitch; /**< in bytes */
  72    GLenum internal_format;
  73    uint32_t dri_format;
  74    GLuint format;
  75    uint32_t offset;
  76
  77    /*
  78     * Need to save these here between calls to
  79     * image_from_names and calls to image_from_planar.
  80     */
  81    uint32_t strides[3];
  82    uint32_t offsets[3];
  83    struct intel_image_format *planar_format;
  84
  85    /* particular miptree level */
  86    GLuint width;
  87    GLuint height;
  88    GLuint tile_x;
  89    GLuint tile_y;
  90    bool has_depthstencil;
  91
  92    /**
  93     * Provided by EGL_EXT_image_dma_buf_import.
  94     *
  95     * The flag is set in order to restrict the use of the image later on.
  96     *
  97     * See intel_image_target_texture_2d()
  98     */
  99    bool dma_buf_imported;
 100    enum __DRIYUVColorSpace yuv_color_space;
 101    enum __DRISampleRange sample_range;
 102    enum __DRIChromaSiting horizontal_siting;
 103    enum __DRIChromaSiting vertical_siting;
 104
 105    void *data;
 106 };
 107
 108 #ifdef __cplusplus
 109 }
 110 #endif
 111
 112 #endif