2 * Mesa 3-D graphics library
4 * Copyright (C) 2010 LunarG Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Chia-I Wu <olv@lunarg.com>
28 #include "main/errors.h"
29 #include "main/texobj.h"
30 #include "main/teximage.h"
31 #include "util/u_inlines.h"
32 #include "util/u_format.h"
33 #include "st_cb_eglimage.h"
34 #include "st_cb_fbo.h"
35 #include "st_context.h"
36 #include "st_texture.h"
37 #include "st_format.h"
38 #include "st_manager.h"
39 #include "st_sampler_view.h"
40 #include "util/u_surface.h"
44 * Return the surface of an EGLImage.
45 * FIXME: I think this should operate on resources, not surfaces
47 static struct pipe_surface
*
48 st_egl_image_get_surface(struct gl_context
*ctx
, GLeglImageOES image_handle
,
49 unsigned usage
, const char *error
)
51 struct st_context
*st
= st_context(ctx
);
52 struct pipe_screen
*screen
= st
->pipe
->screen
;
53 struct st_manager
*smapi
=
54 (struct st_manager
*) st
->iface
.st_context_private
;
55 struct st_egl_image stimg
;
56 struct pipe_surface
*ps
, surf_tmpl
;
58 if (!smapi
|| !smapi
->get_egl_image
)
61 memset(&stimg
, 0, sizeof(stimg
));
62 if (!smapi
->get_egl_image(smapi
, (void *) image_handle
, &stimg
)) {
63 /* image_handle does not refer to a valid EGL image object */
64 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(image handle not found)", error
);
68 if (!screen
->is_format_supported(screen
, stimg
.format
, PIPE_TEXTURE_2D
,
69 stimg
.texture
->nr_samples
, usage
)) {
70 /* unable to specify a texture object using the specified EGL image */
71 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(format not supported)", error
);
75 u_surface_default_template(&surf_tmpl
, stimg
.texture
);
76 surf_tmpl
.format
= stimg
.format
;
77 surf_tmpl
.u
.tex
.level
= stimg
.level
;
78 surf_tmpl
.u
.tex
.first_layer
= stimg
.layer
;
79 surf_tmpl
.u
.tex
.last_layer
= stimg
.layer
;
80 ps
= st
->pipe
->create_surface(st
->pipe
, stimg
.texture
, &surf_tmpl
);
81 pipe_resource_reference(&stimg
.texture
, NULL
);
87 * Return the base format just like _mesa_base_fbo_format does.
90 st_pipe_format_to_base_format(enum pipe_format format
)
94 if (util_format_is_depth_or_stencil(format
)) {
95 if (util_format_is_depth_and_stencil(format
)) {
96 base_format
= GL_DEPTH_STENCIL
;
99 if (format
== PIPE_FORMAT_S8_UINT
)
100 base_format
= GL_STENCIL_INDEX
;
102 base_format
= GL_DEPTH_COMPONENT
;
106 /* is this enough? */
107 if (util_format_has_alpha(format
))
108 base_format
= GL_RGBA
;
110 base_format
= GL_RGB
;
117 st_egl_image_target_renderbuffer_storage(struct gl_context
*ctx
,
118 struct gl_renderbuffer
*rb
,
119 GLeglImageOES image_handle
)
121 struct st_renderbuffer
*strb
= st_renderbuffer(rb
);
122 struct pipe_surface
*ps
;
124 ps
= st_egl_image_get_surface(ctx
, image_handle
, PIPE_BIND_RENDER_TARGET
,
125 "glEGLImageTargetRenderbufferStorage");
127 strb
->Base
.Width
= ps
->width
;
128 strb
->Base
.Height
= ps
->height
;
129 strb
->Base
.Format
= st_pipe_format_to_mesa_format(ps
->format
);
130 strb
->Base
._BaseFormat
= st_pipe_format_to_base_format(ps
->format
);
131 strb
->Base
.InternalFormat
= strb
->Base
._BaseFormat
;
133 pipe_surface_reference(&strb
->surface
, ps
);
134 pipe_resource_reference(&strb
->texture
, ps
->texture
);
136 pipe_surface_reference(&ps
, NULL
);
141 st_bind_surface(struct gl_context
*ctx
, GLenum target
,
142 struct gl_texture_object
*texObj
,
143 struct gl_texture_image
*texImage
,
144 struct pipe_surface
*ps
)
146 struct st_context
*st
= st_context(ctx
);
147 struct st_texture_object
*stObj
;
148 struct st_texture_image
*stImage
;
149 GLenum internalFormat
;
150 mesa_format texFormat
;
152 /* map pipe format to base format */
153 if (util_format_get_component_bits(ps
->format
, UTIL_FORMAT_COLORSPACE_RGB
, 3) > 0)
154 internalFormat
= GL_RGBA
;
156 internalFormat
= GL_RGB
;
158 stObj
= st_texture_object(texObj
);
159 stImage
= st_texture_image(texImage
);
161 /* switch to surface based */
162 if (!stObj
->surface_based
) {
163 _mesa_clear_texture_object(ctx
, texObj
);
164 stObj
->surface_based
= GL_TRUE
;
167 texFormat
= st_pipe_format_to_mesa_format(ps
->format
);
169 /* TODO RequiredTextureImageUnits should probably be reset back
170 * to 1 somewhere if different texture is bound??
172 if (texFormat
== MESA_FORMAT_NONE
) {
173 switch (ps
->format
) {
174 case PIPE_FORMAT_NV12
:
175 texFormat
= MESA_FORMAT_R_UNORM8
;
176 texObj
->RequiredTextureImageUnits
= 2;
178 case PIPE_FORMAT_IYUV
:
179 texFormat
= MESA_FORMAT_R_UNORM8
;
180 texObj
->RequiredTextureImageUnits
= 3;
183 unreachable("bad YUV format!");
187 _mesa_init_teximage_fields(ctx
, texImage
,
188 ps
->width
, ps
->height
, 1, 0, internalFormat
,
191 /* FIXME create a non-default sampler view from the pipe_surface? */
192 pipe_resource_reference(&stObj
->pt
, ps
->texture
);
193 st_texture_release_all_sampler_views(st
, stObj
);
194 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
196 stObj
->surface_format
= ps
->format
;
198 _mesa_dirty_texobj(ctx
, texObj
);
202 st_egl_image_target_texture_2d(struct gl_context
*ctx
, GLenum target
,
203 struct gl_texture_object
*texObj
,
204 struct gl_texture_image
*texImage
,
205 GLeglImageOES image_handle
)
207 struct pipe_surface
*ps
;
209 ps
= st_egl_image_get_surface(ctx
, image_handle
, PIPE_BIND_SAMPLER_VIEW
,
210 "glEGLImageTargetTexture2D");
212 st_bind_surface(ctx
, target
, texObj
, texImage
, ps
);
213 pipe_surface_reference(&ps
, NULL
);
218 st_init_eglimage_functions(struct dd_function_table
*functions
)
220 functions
->EGLImageTargetTexture2D
= st_egl_image_target_texture_2d
;
221 functions
->EGLImageTargetRenderbufferStorage
= st_egl_image_target_renderbuffer_storage
;