diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_eglimage.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_eglimage.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_eglimage.c b/mesalib/src/mesa/state_tracker/st_cb_eglimage.c new file mode 100644 index 000000000..0f5175713 --- /dev/null +++ b/mesalib/src/mesa/state_tracker/st_cb_eglimage.c @@ -0,0 +1,169 @@ +/*
+ * 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/texobj.h"
+#include "main/texfetch.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_USCALED)
+ 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.DataType = st_format_datatype(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, target, 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 */
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