2 * Mesa 3-D graphics library
5 * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org>
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
29 #include "EGL/egl.h" /* for EGL native types */
30 #include "GL/gl.h" /* for GL types needed by __GLcontextModes */
31 #include "GL/internal/glcore.h" /* for __GLcontextModes */
33 #include "pipe/p_compiler.h"
34 #include "pipe/p_screen.h"
35 #include "pipe/p_context.h"
36 #include "pipe/p_state.h"
38 #include "native_probe.h"
39 #include "native_modeset.h"
42 * Only color buffers are listed. The others are allocated privately through,
43 * for example, st_renderbuffer_alloc_storage().
45 enum native_attachment {
46 NATIVE_ATTACHMENT_FRONT_LEFT,
47 NATIVE_ATTACHMENT_BACK_LEFT,
48 NATIVE_ATTACHMENT_FRONT_RIGHT,
49 NATIVE_ATTACHMENT_BACK_RIGHT,
51 NUM_NATIVE_ATTACHMENTS
54 enum native_param_type {
56 * Return TRUE if window/pixmap surfaces use the buffers of the native
59 NATIVE_PARAM_USE_NATIVE_BUFFER
62 struct native_surface {
64 * Available for caller's use.
68 void (*destroy)(struct native_surface *nsurf);
71 * Swap the front and back buffers so that the back buffer is visible. It
72 * is no-op if the surface is single-buffered. The contents of the back
73 * buffer after swapping may or may not be preserved.
75 boolean (*swap_buffers)(struct native_surface *nsurf);
78 * Make the front buffer visible. In some native displays, changes to the
79 * front buffer might not be visible immediately and require manual flush.
81 boolean (*flush_frontbuffer)(struct native_surface *nsurf);
84 * Validate the buffers of the surface. textures, if not NULL, points to an
85 * array of size NUM_NATIVE_ATTACHMENTS and the returned textures are owned
86 * by the caller. A sequence number is also returned. The caller can use
87 * it to check if anything has changed since the last call. Any of the
88 * pointers may be NULL and it indicates the caller has no interest in those
91 * If this function is called multiple times with different attachment
92 * masks, those not listed in the latest call might be destroyed. This
93 * behavior might change in the future.
95 boolean (*validate)(struct native_surface *nsurf, uint attachment_mask,
96 unsigned int *seq_num, struct pipe_resource **textures,
97 int *width, int *height);
100 * Wait until all native commands affecting the surface has been executed.
102 void (*wait)(struct native_surface *nsurf);
105 struct native_config {
106 /* __GLcontextModes should go away some day */
107 __GLcontextModes mode;
108 enum pipe_format color_format;
109 enum pipe_format depth_format;
110 enum pipe_format stencil_format;
112 /* treat it as an additional flag to mode.drawableType */
117 * A pipe winsys abstracts the OS. A pipe screen abstracts the graphcis
118 * hardware. A native display consists of a pipe winsys, a pipe screen, and
119 * the native display server.
121 struct native_display {
123 * The pipe screen of the native display.
125 struct pipe_screen *screen;
128 * Available for caller's use.
132 void (*destroy)(struct native_display *ndpy);
135 * Query the parameters of the native display.
137 * The return value is defined by the parameter.
139 int (*get_param)(struct native_display *ndpy,
140 enum native_param_type param);
143 * Get the supported configs. The configs are owned by the display, but
144 * the returned array should be free()ed.
146 * The configs will be converted to EGL config by
147 * _eglConfigFromContextModesRec and validated by _eglValidateConfig.
148 * Those failing to pass the test will be skipped.
150 const struct native_config **(*get_configs)(struct native_display *ndpy,
154 * Test if a pixmap is supported by the given config. Required unless no
155 * config has GLX_PIXMAP_BIT set.
157 * This function is usually called to find a config that supports a given
158 * pixmap. Thus, it is usually called with the same pixmap in a row.
160 boolean (*is_pixmap_supported)(struct native_display *ndpy,
161 EGLNativePixmapType pix,
162 const struct native_config *nconf);
166 * Create a window surface. Required unless no config has GLX_WINDOW_BIT
169 struct native_surface *(*create_window_surface)(struct native_display *ndpy,
170 EGLNativeWindowType win,
171 const struct native_config *nconf);
174 * Create a pixmap surface. Required unless no config has GLX_PIXMAP_BIT
177 struct native_surface *(*create_pixmap_surface)(struct native_display *ndpy,
178 EGLNativePixmapType pix,
179 const struct native_config *nconf);
181 const struct native_display_modeset *modeset;
185 * The handler for events that a native display may generate. The events are
186 * generated asynchronously and the handler may be called by any thread at any
189 struct native_event_handler {
191 * This function is called when a surface needs to be validated.
193 void (*invalid_surface)(struct native_display *ndpy,
194 struct native_surface *nsurf,
195 unsigned int seq_num);
199 * Test whether an attachment is set in the mask.
201 static INLINE boolean
202 native_attachment_mask_test(uint mask, enum native_attachment att)
204 return !!(mask & (1 << att));
208 native_get_name(void);
210 struct native_display *
211 native_create_display(EGLNativeDisplayType dpy,
212 struct native_event_handler *handler);
214 #endif /* _NATIVE_H_ */