1/*
2 * Copyright (C) 2009 Splitted-Desktop Systems. All Rights Reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
19 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25#include <stdlib.h>
26#include "va_glx_private.h"
27#include "va_glx_impl.h"
28
29#define INIT_CONTEXT(ctx, dpy) do {                             \
30        if (!vaDisplayIsValid(dpy))                             \
31            return VA_STATUS_ERROR_INVALID_DISPLAY;             \
32                                                                \
33        ctx = ((VADisplayContextP)(dpy))->pDriverContext;       \
34        if (!(ctx))                                             \
35            return VA_STATUS_ERROR_INVALID_DISPLAY;             \
36                                                                \
37        VAStatus status = va_glx_init_context(ctx);             \
38        if (status != VA_STATUS_SUCCESS)                        \
39            return status;                                      \
40    } while (0)
41
42#define INVOKE(ctx, func, args) do {                            \
43        VADriverVTableGLXP vtable;                              \
44        vtable = &VA_DRIVER_CONTEXT_GLX(ctx)->vtable;           \
45        if (!vtable->va##func##GLX)                             \
46            return VA_STATUS_ERROR_UNIMPLEMENTED;               \
47        status = vtable->va##func##GLX args;                    \
48    } while (0)
49
50
51// Destroy VA/GLX display context
52static void va_DisplayContextDestroy(VADisplayContextP pDisplayContext)
53{
54    VADisplayContextGLXP pDisplayContextGLX;
55    VADriverContextP     pDriverContext;
56    VADriverContextGLXP  pDriverContextGLX;
57
58    if (!pDisplayContext)
59        return;
60
61    pDriverContext     = pDisplayContext->pDriverContext;
62    pDriverContextGLX  = pDriverContext->glx;
63    if (pDriverContextGLX) {
64        free(pDriverContextGLX);
65        pDriverContext->glx = NULL;
66    }
67
68    pDisplayContextGLX = pDisplayContext->opaque;
69    if (pDisplayContextGLX) {
70        vaDestroyFunc vaDestroy = pDisplayContextGLX->vaDestroy;
71        free(pDisplayContextGLX);
72        pDisplayContext->opaque = NULL;
73        if (vaDestroy)
74            vaDestroy(pDisplayContext);
75    }
76}
77
78// Return a suitable VADisplay for VA API
79VADisplay vaGetDisplayGLX(Display *native_dpy)
80{
81    VADisplay            dpy                = NULL;
82    VADisplayContextP    pDisplayContext    = NULL;
83    VADisplayContextGLXP pDisplayContextGLX = NULL;
84    VADriverContextP     pDriverContext;
85    VADriverContextGLXP  pDriverContextGLX  = NULL;
86
87    dpy = vaGetDisplay(native_dpy);
88    if (!dpy)
89        return NULL;
90    pDisplayContext = (VADisplayContextP)dpy;
91    pDriverContext  = pDisplayContext->pDriverContext;
92
93    pDisplayContextGLX = calloc(1, sizeof(*pDisplayContextGLX));
94    if (!pDisplayContextGLX)
95        goto error;
96
97    pDriverContextGLX = calloc(1, sizeof(*pDriverContextGLX));
98    if (!pDriverContextGLX)
99        goto error;
100
101    pDriverContext->display_type  = VA_DISPLAY_GLX;
102    pDisplayContextGLX->vaDestroy = pDisplayContext->vaDestroy;
103    pDisplayContext->vaDestroy    = va_DisplayContextDestroy;
104    pDisplayContext->opaque       = pDisplayContextGLX;
105    pDriverContext->glx           = pDriverContextGLX;
106    return dpy;
107
108error:
109    free(pDriverContextGLX);
110    free(pDisplayContextGLX);
111    pDisplayContext->vaDestroy(pDisplayContext);
112    return NULL;
113}
114
115// Create a surface used for display to OpenGL
116VAStatus vaCreateSurfaceGLX(
117    VADisplay dpy,
118    GLenum    target,
119    GLuint    texture,
120    void    **gl_surface
121)
122{
123    VADriverContextP ctx;
124    VAStatus status;
125
126    /* Make sure it is a valid GL texture object */
127    if (!glIsTexture(texture))
128        return VA_STATUS_ERROR_INVALID_PARAMETER;
129
130    INIT_CONTEXT(ctx, dpy);
131
132    INVOKE(ctx, CreateSurface, (ctx, target, texture, gl_surface));
133    return status;
134}
135
136// Destroy a VA/GLX surface
137VAStatus vaDestroySurfaceGLX(
138    VADisplay dpy,
139    void     *gl_surface
140)
141{
142    VADriverContextP ctx;
143    VAStatus status;
144
145    INIT_CONTEXT(ctx, dpy);
146
147    INVOKE(ctx, DestroySurface, (ctx, gl_surface));
148    return status;
149}
150
151// Copy a VA surface to a VA/GLX surface
152VAStatus vaCopySurfaceGLX(
153    VADisplay    dpy,
154    void        *gl_surface,
155    VASurfaceID  surface,
156    unsigned int flags
157)
158{
159    VADriverContextP ctx;
160    VAStatus status;
161
162    INIT_CONTEXT(ctx, dpy);
163
164    INVOKE(ctx, CopySurface, (ctx, gl_surface, surface, flags));
165    return status;
166}
167