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

   1 /*
   2  * Copyright 2006 VMware, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial portions
  15  * of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 #ifndef INTEL_IMAGE_H
  27 #define INTEL_IMAGE_H
  28
  29 /** @file intel_image.h
  30  *
  31  * Structure definitions and prototypes for __DRIimage, the driver-private
  32  * structure backing EGLImage or a drawable in DRI3.
  33  *
  34  * The __DRIimage is passed around the loader code (src/glx and src/egl), but
  35  * it's opaque to that code and may only be accessed by loader extensions
  36  * (mostly located in intel_screen.c).
  37  */
  38
  39 #include <stdbool.h>
  40 #include <xf86drm.h>
  41
  42 #include "main/mtypes.h"
  43 #include "brw_bufmgr.h"
  44 #include <GL/internal/dri_interface.h>
  45
  46 #ifdef __cplusplus
  47 extern "C" {
  48 #endif
  49
  50 /**
  51  * Used with images created with image_from_names
  52  * to help support planar images.
  53  */
  54 struct intel_image_format {
  55    int fourcc;
  56    int components;
  57    int nplanes;
  58    struct {
  59       int buffer_index;
  60       int width_shift;
  61       int height_shift;
  62       uint32_t dri_format;
  63       int cpp;
  64    } planes[3];
  65    float scaling_factor;
  66 };
  67
  68 struct __DRIimageRec {
  69    struct intel_screen *screen;
  70    struct brw_bo *bo;
  71    uint32_t pitch; /**< in bytes */
  72    GLenum internal_format;
  73    uint32_t dri_format;
  74    GLuint format; /**< mesa_format or mesa_array_format */
  75    uint64_t modifier; /**< fb modifier (fourcc) */
  76    uint32_t offset;
  77
  78    /*
  79     * Need to save these here between calls to
  80     * image_from_names and calls to image_from_planar.
  81     */
  82    uint32_t strides[3];
  83    uint32_t offsets[3];
  84    const struct intel_image_format *planar_format;
  85
  86    /* particular miptree level */
  87    GLuint width;
  88    GLuint height;
  89    GLuint tile_x;
  90    GLuint tile_y;
  91    bool has_depthstencil;
  92    bool imported_dmabuf;
  93
  94    /** Offset of the auxiliary compression surface in the bo. */
  95    uint32_t aux_offset;
  96
  97    /** Pitch of the auxiliary compression surface. */
  98    uint32_t aux_pitch;
  99
 100    /** Total size in bytes of the auxiliary compression surface. */
 101    uint32_t aux_size;
 102
 103    /**
 104     * Provided by EGL_EXT_image_dma_buf_import.
 105     * \{
 106     */
 107    enum __DRIYUVColorSpace yuv_color_space;
 108    enum __DRISampleRange sample_range;
 109    enum __DRIChromaSiting horizontal_siting;
 110    enum __DRIChromaSiting vertical_siting;
 111    /* \} */
 112
 113    void *data;
 114 };
 115
 116 #ifdef __cplusplus
 117 }
 118 #endif
 119
 120 #endif