2 * Copyright 2017 The Chromium OS Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
15 #include <drm_fourcc.h>
21 #include "i915_private.h"
23 static const uint32_t private_linear_source_formats[] = { DRM_FORMAT_R16, DRM_FORMAT_NV16,
24 DRM_FORMAT_YUV420, DRM_FORMAT_YUV422,
25 DRM_FORMAT_YUV444, DRM_FORMAT_NV21,
28 static const uint32_t private_source_formats[] = { DRM_FORMAT_P010, DRM_FORMAT_NV12_Y_TILED_INTEL };
30 #if !defined(DRM_CAP_CURSOR_WIDTH)
31 #define DRM_CAP_CURSOR_WIDTH 0x8
34 #if !defined(DRM_CAP_CURSOR_HEIGHT)
35 #define DRM_CAP_CURSOR_HEIGHT 0x9
38 static const uint32_t kDefaultCursorWidth = 64;
39 static const uint32_t kDefaultCursorHeight = 64;
41 #define BO_USE_CAMERA_MASK BO_USE_CAMERA_READ | BO_USE_SCANOUT | BO_USE_CAMERA_WRITE
43 static void get_preferred_cursor_attributes(uint32_t drm_fd, uint64_t *cursor_width,
44 uint64_t *cursor_height)
46 uint64_t width = 0, height = 0;
47 if (drmGetCap(drm_fd, DRM_CAP_CURSOR_WIDTH, &width)) {
48 fprintf(stderr, "cannot get cursor width. \n");
49 } else if (drmGetCap(drm_fd, DRM_CAP_CURSOR_HEIGHT, &height)) {
50 fprintf(stderr, "cannot get cursor height. \n");
54 width = kDefaultCursorWidth;
56 *cursor_width = width;
59 height = kDefaultCursorHeight;
61 *cursor_height = height;
64 int i915_private_init(struct driver *drv, uint64_t *cursor_width, uint64_t *cursor_height)
66 get_preferred_cursor_attributes(drv->fd, cursor_width, cursor_height);
70 int i915_private_add_combinations(struct driver *drv)
72 struct format_metadata metadata;
73 uint64_t render_flags, texture_flags;
75 render_flags = BO_USE_RENDER_MASK;
76 texture_flags = BO_USE_TEXTURE_MASK;
78 metadata.tiling = I915_TILING_NONE;
79 metadata.priority = 1;
80 metadata.modifier = DRM_FORMAT_MOD_NONE;
82 drv_modify_combination(drv, DRM_FORMAT_ABGR8888, &metadata, BO_USE_CURSOR | BO_USE_SCANOUT);
83 drv_modify_combination(drv, DRM_FORMAT_NV12, &metadata,
84 BO_USE_RENDERING | BO_USE_TEXTURE | BO_USE_CAMERA_MASK);
85 drv_modify_combination(drv, DRM_FORMAT_YUYV, &metadata,
86 BO_USE_TEXTURE | BO_USE_CAMERA_MASK | BO_USE_RENDERING);
87 drv_modify_combination(drv, DRM_FORMAT_VYUY, &metadata,
88 BO_USE_TEXTURE | BO_USE_CAMERA_MASK | BO_USE_RENDERING);
89 drv_modify_combination(drv, DRM_FORMAT_UYVY, &metadata,
90 BO_USE_TEXTURE | BO_USE_CAMERA_MASK | BO_USE_RENDERING);
91 drv_modify_combination(drv, DRM_FORMAT_YVYU, &metadata,
92 BO_USE_TEXTURE | BO_USE_CAMERA_MASK | BO_USE_RENDERING);
93 drv_modify_combination(drv, DRM_FORMAT_YVU420_ANDROID, &metadata,
94 BO_USE_TEXTURE | BO_USE_CAMERA_MASK);
96 /* Media/Camera expect these formats support. */
97 metadata.tiling = I915_TILING_NONE;
98 metadata.priority = 1;
99 metadata.modifier = DRM_FORMAT_MOD_NONE;
100 drv_add_combinations(drv, private_linear_source_formats,
101 ARRAY_SIZE(private_linear_source_formats), &metadata,
102 texture_flags | BO_USE_CAMERA_MASK);
104 metadata.tiling = I915_TILING_Y;
105 metadata.priority = 3;
106 metadata.modifier = I915_FORMAT_MOD_Y_TILED;
107 drv_add_combinations(drv, private_source_formats, ARRAY_SIZE(private_source_formats),
108 &metadata, texture_flags | BO_USE_CAMERA_MASK);
110 texture_flags &= ~BO_USE_RENDERSCRIPT;
111 texture_flags &= ~BO_USE_SW_WRITE_OFTEN;
112 texture_flags &= ~BO_USE_SW_READ_OFTEN;
113 texture_flags &= ~BO_USE_LINEAR;
115 metadata.tiling = I915_TILING_X;
116 metadata.priority = 2;
117 metadata.modifier = I915_FORMAT_MOD_X_TILED;
119 int ret = drv_add_combinations(drv, private_linear_source_formats,
120 ARRAY_SIZE(private_linear_source_formats), &metadata,
121 texture_flags | BO_USE_CAMERA_MASK);
128 void i915_private_align_dimensions(uint32_t format, uint32_t *vertical_alignment)
131 case DRM_FORMAT_NV12_Y_TILED_INTEL:
132 *vertical_alignment = 64;
137 uint32_t i915_private_bpp_from_format(uint32_t format, size_t plane)
139 assert(plane < drv_num_planes_from_format(format));
142 case DRM_FORMAT_NV12_Y_TILED_INTEL:
143 return (plane == 0) ? 8 : 4;
144 case DRM_FORMAT_P010:
145 return (plane == 0) ? 16 : 8;
146 case DRM_FORMAT_YUV420:
147 case DRM_FORMAT_YUV422:
148 case DRM_FORMAT_YUV444:
149 case DRM_FORMAT_NV16:
155 fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
159 void i915_private_vertical_subsampling_from_format(uint32_t *vertical_subsampling, uint32_t format,
163 case DRM_FORMAT_NV12_Y_TILED_INTEL:
164 case DRM_FORMAT_YUV420:
165 case DRM_FORMAT_P010:
166 *vertical_subsampling = (plane == 0) ? 1 : 2;
169 *vertical_subsampling = 1;
173 size_t i915_private_num_planes_from_format(uint32_t format)
178 case DRM_FORMAT_NV12_Y_TILED_INTEL:
179 case DRM_FORMAT_NV16:
180 case DRM_FORMAT_P010:
182 case DRM_FORMAT_YUV420:
183 case DRM_FORMAT_YUV422:
184 case DRM_FORMAT_YUV444:
188 fprintf(stderr, "drv: UNKNOWN FORMAT %d\n", format);
192 uint32_t i915_private_resolve_format(uint32_t format, uint64_t usage, uint32_t *resolved_format)
195 case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
196 /* KBL camera subsystem requires NV12. */
197 if (usage & (BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE)) {
198 *resolved_format = DRM_FORMAT_NV12;
202 if (usage & BO_USE_TEXTURE) {
203 *resolved_format = DRM_FORMAT_ABGR8888;