2 * Mesa 3-D graphics library
5 * Copyright (C) 2010 LunarG Inc.
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.
26 * Chia-I Wu <olv@lunarg.com>
29 #include "main/mfeatures.h"
30 #include "main/texobj.h"
31 #include "main/texfetch.h"
32 #include "main/teximage.h"
33 #include "util/u_inlines.h"
34 #include "util/u_format.h"
35 #include "st_cb_eglimage.h"
36 #include "st_cb_fbo.h"
37 #include "st_context.h"
38 #include "st_texture.h"
39 #include "st_format.h"
40 #include "st_manager.h"
42 #if FEATURE_OES_EGL_image
45 * Return the base format just like _mesa_base_fbo_format does.
48 st_pipe_format_to_base_format(enum pipe_format format)
52 if (util_format_is_depth_or_stencil(format)) {
53 if (util_format_is_depth_and_stencil(format)) {
54 base_format = GL_DEPTH_STENCIL;
57 if (format == PIPE_FORMAT_S8_USCALED)
58 base_format = GL_STENCIL_INDEX;
60 base_format = GL_DEPTH_COMPONENT;
65 if (util_format_has_alpha(format))
66 base_format = GL_RGBA;
75 st_egl_image_target_renderbuffer_storage(struct gl_context *ctx,
76 struct gl_renderbuffer *rb,
77 GLeglImageOES image_handle)
79 struct st_context *st = st_context(ctx);
80 struct st_renderbuffer *strb = st_renderbuffer(rb);
81 struct pipe_surface *ps;
84 usage = PIPE_BIND_RENDER_TARGET;
85 ps = st_manager_get_egl_image_surface(st, (void *) image_handle, usage);
87 strb->Base.Width = ps->width;
88 strb->Base.Height = ps->height;
89 strb->Base.Format = st_pipe_format_to_mesa_format(ps->format);
90 strb->Base.DataType = st_format_datatype(ps->format);
91 strb->Base._BaseFormat = st_pipe_format_to_base_format(ps->format);
92 strb->Base.InternalFormat = strb->Base._BaseFormat;
94 pipe_surface_reference(&strb->surface, ps);
95 pipe_resource_reference(&strb->texture, ps->texture);
97 pipe_surface_reference(&ps, NULL);
102 st_bind_surface(struct gl_context *ctx, GLenum target,
103 struct gl_texture_object *texObj,
104 struct gl_texture_image *texImage,
105 struct pipe_surface *ps)
107 struct st_texture_object *stObj;
108 struct st_texture_image *stImage;
109 GLenum internalFormat;
112 /* map pipe format to base format */
113 if (util_format_get_component_bits(ps->format, UTIL_FORMAT_COLORSPACE_RGB, 3) > 0)
114 internalFormat = GL_RGBA;
116 internalFormat = GL_RGB;
118 stObj = st_texture_object(texObj);
119 stImage = st_texture_image(texImage);
121 /* switch to surface based */
122 if (!stObj->surface_based) {
123 _mesa_clear_texture_object(ctx, texObj);
124 stObj->surface_based = GL_TRUE;
127 texFormat = st_pipe_format_to_mesa_format(ps->format);
129 _mesa_init_teximage_fields(ctx, target, texImage,
130 ps->width, ps->height, 1, 0, internalFormat,
133 /* FIXME create a non-default sampler view from the pipe_surface? */
134 pipe_resource_reference(&stObj->pt, ps->texture);
135 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
136 pipe_resource_reference(&stImage->pt, stObj->pt);
138 stObj->width0 = ps->width;
139 stObj->height0 = ps->height;
142 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
146 st_egl_image_target_texture_2d(struct gl_context *ctx, GLenum target,
147 struct gl_texture_object *texObj,
148 struct gl_texture_image *texImage,
149 GLeglImageOES image_handle)
151 struct st_context *st = st_context(ctx);
152 struct pipe_surface *ps;
155 usage = PIPE_BIND_SAMPLER_VIEW;
156 ps = st_manager_get_egl_image_surface(st, (void *) image_handle, usage);
158 st_bind_surface(ctx, target, texObj, texImage, ps);
159 pipe_surface_reference(&ps, NULL);
164 st_init_eglimage_functions(struct dd_function_table *functions)
166 functions->EGLImageTargetTexture2D = st_egl_image_target_texture_2d;
167 functions->EGLImageTargetRenderbufferStorage = st_egl_image_target_renderbuffer_storage;
170 #endif /* FEATURE_OES_EGL_image */