| /* |
| * Mesa 3-D graphics library |
| * Version: 7.9 |
| * |
| * Copyright (C) 2010 LunarG Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: |
| * Chia-I Wu <olv@lunarg.com> |
| */ |
| |
| #include "main/mfeatures.h" |
| #include "main/texobj.h" |
| #include "main/teximage.h" |
| #include "util/u_inlines.h" |
| #include "util/u_format.h" |
| #include "st_cb_eglimage.h" |
| #include "st_cb_fbo.h" |
| #include "st_context.h" |
| #include "st_texture.h" |
| #include "st_format.h" |
| #include "st_manager.h" |
| |
| #if FEATURE_OES_EGL_image |
| |
| /** |
| * Return the base format just like _mesa_base_fbo_format does. |
| */ |
| static GLenum |
| st_pipe_format_to_base_format(enum pipe_format format) |
| { |
| GLenum base_format; |
| |
| if (util_format_is_depth_or_stencil(format)) { |
| if (util_format_is_depth_and_stencil(format)) { |
| base_format = GL_DEPTH_STENCIL; |
| } |
| else { |
| if (format == PIPE_FORMAT_S8_UINT) |
| base_format = GL_STENCIL_INDEX; |
| else |
| base_format = GL_DEPTH_COMPONENT; |
| } |
| } |
| else { |
| /* is this enough? */ |
| if (util_format_has_alpha(format)) |
| base_format = GL_RGBA; |
| else |
| base_format = GL_RGB; |
| } |
| |
| return base_format; |
| } |
| |
| static void |
| st_egl_image_target_renderbuffer_storage(struct gl_context *ctx, |
| struct gl_renderbuffer *rb, |
| GLeglImageOES image_handle) |
| { |
| struct st_context *st = st_context(ctx); |
| struct st_renderbuffer *strb = st_renderbuffer(rb); |
| struct pipe_surface *ps; |
| unsigned usage; |
| |
| usage = PIPE_BIND_RENDER_TARGET; |
| ps = st_manager_get_egl_image_surface(st, (void *) image_handle, usage); |
| if (ps) { |
| strb->Base.Width = ps->width; |
| strb->Base.Height = ps->height; |
| strb->Base.Format = st_pipe_format_to_mesa_format(ps->format); |
| strb->Base._BaseFormat = st_pipe_format_to_base_format(ps->format); |
| strb->Base.InternalFormat = strb->Base._BaseFormat; |
| |
| pipe_surface_reference(&strb->surface, ps); |
| pipe_resource_reference(&strb->texture, ps->texture); |
| |
| pipe_surface_reference(&ps, NULL); |
| } |
| } |
| |
| static void |
| st_bind_surface(struct gl_context *ctx, GLenum target, |
| struct gl_texture_object *texObj, |
| struct gl_texture_image *texImage, |
| struct pipe_surface *ps) |
| { |
| struct st_texture_object *stObj; |
| struct st_texture_image *stImage; |
| GLenum internalFormat; |
| gl_format texFormat; |
| |
| /* map pipe format to base format */ |
| if (util_format_get_component_bits(ps->format, UTIL_FORMAT_COLORSPACE_RGB, 3) > 0) |
| internalFormat = GL_RGBA; |
| else |
| internalFormat = GL_RGB; |
| |
| stObj = st_texture_object(texObj); |
| stImage = st_texture_image(texImage); |
| |
| /* switch to surface based */ |
| if (!stObj->surface_based) { |
| _mesa_clear_texture_object(ctx, texObj); |
| stObj->surface_based = GL_TRUE; |
| } |
| |
| texFormat = st_pipe_format_to_mesa_format(ps->format); |
| |
| _mesa_init_teximage_fields(ctx, texImage, |
| ps->width, ps->height, 1, 0, internalFormat, |
| texFormat); |
| |
| /* FIXME create a non-default sampler view from the pipe_surface? */ |
| pipe_resource_reference(&stObj->pt, ps->texture); |
| pipe_sampler_view_reference(&stObj->sampler_view, NULL); |
| pipe_resource_reference(&stImage->pt, stObj->pt); |
| |
| stObj->width0 = ps->width; |
| stObj->height0 = ps->height; |
| stObj->depth0 = 1; |
| |
| _mesa_dirty_texobj(ctx, texObj, GL_TRUE); |
| } |
| |
| static void |
| st_egl_image_target_texture_2d(struct gl_context *ctx, GLenum target, |
| struct gl_texture_object *texObj, |
| struct gl_texture_image *texImage, |
| GLeglImageOES image_handle) |
| { |
| struct st_context *st = st_context(ctx); |
| struct pipe_surface *ps; |
| unsigned usage; |
| |
| usage = PIPE_BIND_SAMPLER_VIEW; |
| ps = st_manager_get_egl_image_surface(st, (void *) image_handle, usage); |
| if (ps) { |
| st_bind_surface(ctx, target, texObj, texImage, ps); |
| pipe_surface_reference(&ps, NULL); |
| } |
| } |
| |
| void |
| st_init_eglimage_functions(struct dd_function_table *functions) |
| { |
| functions->EGLImageTargetTexture2D = st_egl_image_target_texture_2d; |
| functions->EGLImageTargetRenderbufferStorage = st_egl_image_target_renderbuffer_storage; |
| } |
| |
| #endif /* FEATURE_OES_EGL_image */ |