reconstitute moving 3d out of dev CL. (previous attempt was reverted)

ppapi/c/dev/ppb_graphics_3d_dev.h

-/* Copyright (c) 2011 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#ifndef PPAPI_C_DEV_PPB_GRAPHICS_3D_DEV_H_
-#define PPAPI_C_DEV_PPB_GRAPHICS_3D_DEV_H_
-
-#include "ppapi/c/dev/pp_graphics_3d_dev.h"
-
-#include "ppapi/c/pp_bool.h"
-#include "ppapi/c/pp_instance.h"
-#include "ppapi/c/pp_resource.h"
-
-// Example usage from plugin code:
-//
-// // Setup.
-// PP_Resource context;
-// int32_t attribs[] = {PP_GRAPHICS3DATTRIB_WIDTH, 800,
-//                      PP_GRAPHICS3DATTRIB_HEIGHT, 800,
-//                      PP_GRAPHICS3DATTRIB_NONE};
-// context = g3d->Create(instance, attribs, &context);
-// inst->BindGraphics(instance, context);
-//
-// // Present one frame.
-// gles2->Clear(context, GL_COLOR_BUFFER);
-// g3d->SwapBuffers(context);
-//
-// // Shutdown.
-// core->ReleaseResource(context);
-
-#define PPB_GRAPHICS_3D_DEV_INTERFACE_0_9 "PPB_Graphics3D(Dev);0.9"
-#define PPB_GRAPHICS_3D_DEV_INTERFACE PPB_GRAPHICS_3D_DEV_INTERFACE_0_9
-
-struct PPB_Graphics3D_Dev {
-  // Retrieves the maximum supported value for the given attribute.
-  //
-  // This function may be used to check if a particular attribute value is
-  // supported before attempting to create a context.
-  // Attributes that can be queried for include:
-  // - PP_GRAPHICS3DATTRIB_ALPHA_SIZE
-  // - PP_GRAPHICS3DATTRIB_BLUE_SIZE
-  // - PP_GRAPHICS3DATTRIB_GREEN_SIZE
-  // - PP_GRAPHICS3DATTRIB_RED_SIZE
-  // - PP_GRAPHICS3DATTRIB_DEPTH_SIZE
-  // - PP_GRAPHICS3DATTRIB_STENCIL_SIZE
-  // - PP_GRAPHICS3DATTRIB_SAMPLES
-  // - PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS
-  // - PP_GRAPHICS3DATTRIB_WIDTH
-  // - PP_GRAPHICS3DATTRIB_HEIGHT
-  //
-  // On failure the following error codes may be returned:
-  // - PP_ERROR_BADRESOURCE if instance is invalid.
-  // - PP_ERROR_BADARGUMENT if attribute is invalid or value is NULL
-  int32_t (*GetAttribMaxValue)(PP_Resource instance,
-                               int32_t attribute, int32_t* value);
-
-  // Creates and initializes a rendering context and returns a handle to it.
-  // The returned context is off-screen to start with. It must be attached to
-  // a plugin instance using PPB_Instance::BindGraphics to draw on the web page.
-  //
-  // If share_context is not NULL, then all shareable data, as defined
-  // by the client API (note that for OpenGL and OpenGL ES, shareable data
-  // excludes texture objects named 0) will be shared by share_context, all
-  // other contexts share_context already shares with, and the newly created
-  // context. An arbitrary number of PPB_Graphics3D_Dev can share data in
-  // this fashion.
-  //
-  // attrib_list specifies a list of attributes for the context. It is a list
-  // of attribute name-value pairs in which each attribute is immediately
-  // followed by the corresponding desired value. The list is terminated with
-  // PP_GRAPHICS3DATTRIB_NONE. The attrib_list may be NULL or empty
-  // (first attribute is PP_GRAPHICS3DATTRIB_NONE). If an attribute is not
-  // specified in attrib_list, then the default value is used (it is said to
-  // be specified implicitly).
-  //
-  // Attributes for the context are chosen according to an attribute-specific
-  // criteria. Attributes can be classified into two categories:
-  // - AtLeast: The attribute value in the returned context meets or exceeds
-  //            the value specified in attrib_list.
-  // - Exact: The attribute value in the returned context is equal to
-  //          the value specified in attrib_list.
-  //
-  // Attributes that can be specified in attrib_list include:
-  // - PP_GRAPHICS3DATTRIB_ALPHA_SIZE: Category: AtLeast Default: 0.
-  // - PP_GRAPHICS3DATTRIB_BLUE_SIZE: Category: AtLeast Default: 0.
-  // - PP_GRAPHICS3DATTRIB_GREEN_SIZE: Category: AtLeast Default: 0.
-  // - PP_GRAPHICS3DATTRIB_RED_SIZE: Category: AtLeast Default: 0.
-  // - PP_GRAPHICS3DATTRIB_DEPTH_SIZE: Category: AtLeast Default: 0.
-  // - PP_GRAPHICS3DATTRIB_STENCIL_SIZE: Category: AtLeast Default: 0.
-  // - PP_GRAPHICS3DATTRIB_SAMPLES: Category: AtLeast Default: 0.
-  // - PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS: Category: AtLeast Default: 0.
-  // - PP_GRAPHICS3DATTRIB_WIDTH: Category: Exact Default: 0.
-  // - PP_GRAPHICS3DATTRIB_HEIGHT: Category: Exact Default: 0.
-  // - PP_GRAPHICS3DATTRIB_SWAP_BEHAVIOR:
-  //   Category: Exact Default: Implementation defined.
-  //
-  // On failure NULL resource is returned.
-  PP_Resource (*Create)(PP_Instance instance,
-                        PP_Resource share_context,
-                        const int32_t* attrib_list);
-
-  // Returns PP_TRUE if the given resource is a valid PPB_Graphics3D_Dev,
-  // PP_FALSE if it is an invalid resource or is a resource of another type.
-  PP_Bool (*IsGraphics3D)(PP_Resource resource);
-
-  // Retrieves the value for each attribute in attrib_list. The list
-  // has the same structure as described for PPB_Graphics3D_Dev::Create.
-  // It is both input and output structure for this function.
-  //
-  // All attributes specified in PPB_Graphics3D_Dev::Create can be queried for.
-  // On failure the following error codes may be returned:
-  // - PP_ERROR_BADRESOURCE if context is invalid.
-  // - PP_ERROR_BADARGUMENT if attrib_list is NULL or any attribute in the
-  //   attrib_list is not a valid attribute.
-  //
-  // Example usage: To get the values for rgb bits in the color buffer,
-  // this function must be called as following:
-  // int attrib_list[] = {PP_GRAPHICS3DATTRIB_RED_SIZE, 0,
-  //                      PP_GRAPHICS3DATTRIB_GREEN_SIZE, 0,
-  //                      PP_GRAPHICS3DATTRIB_BLUE_SIZE, 0,
-  //                      PP_GRAPHICS3DATTRIB_NONE};
-  // GetAttribs(context, attrib_list);
-  // int red_bits = attrib_list[1];
-  // int green_bits = attrib_list[3];
-  // int blue_bits = attrib_list[5];
-  int32_t (*GetAttribs)(PP_Resource context, int32_t* attrib_list);
-
-  // Sets the values for each attribute in attrib_list. The list
-  // has the same structure as described for PPB_Graphics3D_Dev::Create.
-  //
-  // Attributes that can be specified are:
-  // - PP_GRAPHICS3DATTRIB_SWAP_BEHAVIOR
-  //
-  // On failure the following error codes may be returned:
-  // - PP_ERROR_BADRESOURCE if context is invalid.
-  // - PP_ERROR_BADARGUMENT if attrib_list is NULL or any attribute in the
-  //   attrib_list is not a valid attribute.
-  int32_t (*SetAttribs)(PP_Resource context, int32_t* attrib_list);
-
-  // The recoverable error conditions that have no side effect are
-  // detected and returned immediately by all functions in this interface.
-  // In addition the implementation may get into a fatal state while
-  // processing a command. In this case the application must detroy the
-  // context and reinitialize client API state and objects to continue
-  // rendering.
-  //
-  // Note that the same error code is also returned in the SwapBuffers callback.
-  // It is recommended to handle error in the SwapBuffers callback because
-  // GetError is synchronous. This function may be useful in rare cases where
-  // drawing a frame is expensive and you want to verify the result of
-  // ResizeBuffers before attemptimg to draw a frame.
-  //
-  // The following error codes may be returned:
-  // - PP_ERROR_NOMEMORY
-  // - PP_ERROR_CONTEXT_LOST
-  int32_t (*GetError)(PP_Resource context);
-
-  // Resizes the backing surface for context.
-  //
-  // On failure the following error codes may be returned:
-  // - PP_ERROR_BADRESOURCE if context is invalid.
-  // - PP_ERROR_BADARGUMENT if the value specified for width or height
-  //   is less than zero.
-  //
-  // If the surface could not be resized due to insufficient resources,
-  // PP_ERROR_NOMEMORY error is returned on the next SwapBuffers callback.
-  int32_t (*ResizeBuffers)(PP_Resource context,
-                           int32_t width, int32_t height);
-
-  // Makes the contents of the color buffer available for compositing.
-  // This function has no effect on off-screen surfaces - ones not bound
-  // to any plugin instance. The contents of ancillary buffers are always
-  // undefined after calling SwapBuffers. The contents of the color buffer are
-  // undefined if the value of the PP_GRAPHICS3DATTRIB_SWAP_BEHAVIOR attribute
-  // of context is not PP_GRAPHICS3DATTRIB_BUFFER_PRESERVED.
-  //
-  // SwapBuffers runs in asynchronous mode. Specify a callback function and the
-  // argument for that callback function. The callback function will be executed
-  // on the calling thread after the color buffer has been composited with
-  // rest of the html page. While you are waiting for a SwapBuffers callback,
-  // additional calls to SwapBuffers will fail.
-  //
-  // Because the callback is executed (or thread unblocked) only when the
-  // plugin's current state is actually on the screen, this function provides a
-  // way to rate limit animations. By waiting until the image is on the screen
-  // before painting the next frame, you can ensure you're not generating
-  // updates faster than the screen can be updated.
-  //
-  // SwapBuffers performs an implicit flush operation on context.
-  // If the context gets into an unrecoverable error condition while
-  // processing a command, the error code will be returned as the argument
-  // for the callback. The callback may return the following error codes:
-  // - PP_ERROR_NOMEMORY
-  // - PP_ERROR_CONTEXT_LOST
-  // Note that the same error code may also be obtained by calling GetError.
-  //
-  // On failure SwapBuffers may return the following error codes:
-  // - PP_ERROR_BADRESOURCE if context is invalid.
-  // - PP_ERROR_BADARGUMENT if callback is invalid.
-  int32_t (*SwapBuffers)(PP_Resource context,
-                         struct PP_CompletionCallback callback);
-};
-
-#endif  /* PPAPI_C_DEV_PPB_GRAPHICS_3D_DEV_H_ */