Proposed changes to Pepper 3D API.

ppapi/c/dev/pp_graphics_3d_dev.h

+// Copyright (c) 2010 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_PP_GRAPHICS_3D_DEV_H_
+#define PPAPI_C_DEV_PP_GRAPHICS_3D_DEV_H_
+
+// TODO(alokp): Using PP_Graphics3D prefix is making these enum names rather

[alokp, 2010/12/10 13:20:34]

Any suggestion on this?

[brettw, 2010/12/10 17:39:11]

I kind of like the current (long) way since I think overall API consistency is
important.

+// long. Can we just use PP_GL? It will be a nice short replacement of EGL.
+// In which case we should rename associated classes as - PP_GL, PP_GLContext,
+// PP_GLContext, PP_GLSurface, PP_GLConfig, and PP_OpenGLES2.
+//
+// Another option is to rename Surface3D and Context3D to Graphics3DSurface
+// and Graphics3DContext respectively But this does not make the names
+// any shorter.
+
+enum PP_Graphics3DError_Dev {
+  PP_GRAPHICS3DERROR_BAD_ACCESS = 0x3002,
+  PP_GRAPHICS3DERROR_BAD_ATTRIBUTE = 0x3004,
+  PP_GRAPHICS3DERROR_BAD_CONFIG = 0x3005,
+  PP_GRAPHICS3DERROR_BAD_CONTEXT = 0x3006,
+  PP_GRAPHICS3DERROR_BAD_MATCH = 0x3009,
+  PP_GRAPHICS3DERROR_BAD_SURFACE = 0x300D,
+  PP_GRAPHICS3DERROR_CONTEXT_LOST = 0x300E
+};
+
+enum PP_Graphics3DString_Dev {
+  PP_GRAPHICS3DSTRING_VENDOR = 0x3053,
+  PP_GRAPHICS3DSTRING_VERSION = 0x3054,
+  // Which extensions are supported.
+  PP_GRAPHICS3DSTRING_EXTENSIONS = 0x3055,
+  // Which client rendering APIs are supported.
+  PP_GRAPHICS3DSTRING_CLIENT_APIS = 0x308D
+};
+
+enum PP_Graphics3DAttrib_Dev {
+  // Total color component bits in the color buffer.
+  PP_GRAPHICS3DATTRIB_BUFFER_SIZE = 0x3020,
+  // Bits of Alpha in the color buffer.
+  PP_GRAPHICS3DATTRIB_ALPHA_SIZE = 0x3021,
+  // Bits of Blue in the color buffer.
+  PP_GRAPHICS3DATTRIB_BLUE_SIZE = 0x3022,
+  // Bits of Green in the color buffer.
+  PP_GRAPHICS3DATTRIB_GREEN_SIZE = 0x3023,
+  // Bits of Red in the color buffer.
+  PP_GRAPHICS3DATTRIB_RED_SIZE = 0x3024,
+  // Bits of Z in the depth buffer.
+  PP_GRAPHICS3DATTRIB_DEPTH_SIZE = 0x3025,
+  // Bits of Stencil in the stencil buffer.
+  PP_GRAPHICS3DATTRIB_STENCIL_SIZE = 0x3026,
+  // Any caveats for the configuration.
+  PP_GRAPHICS3DATTRIB_CONFIG_CAVEAT = 0x3027,
+  // Unique EGLConfig identifier.
+  PP_GRAPHICS3DATTRIB_CONFIG_ID = 0x3028,
+  // Maximum height of surface.
+  PP_GRAPHICS3DATTRIB_MAX_SURFACE_HEIGHT = 0x302A,
+  // Maximum size of surface.
+  PP_GRAPHICS3DATTRIB_MAX_SURFACE_PIXELS = 0x302B,
+  // Maximum width of surface.
+  PP_GRAPHICS3DATTRIB_MAX_SURFACE_WIDTH = 0x302C,
+  // Number of samples per pixel.
+  PP_GRAPHICS3DATTRIB_SAMPLES = 0x3031,
+  // Number of multisample buffers.
+  PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS = 0x3032,
+  // Which types of EGL surfaces are supported.
+  PP_GRAPHICS3DATTRIB_SURFACE_TYPE = 0x3033,
+  // Type of transparency supported.
+  PP_GRAPHICS3DATTRIB_TRANSPARENT_TYPE = 0x3034,
+  // Transparent blue value.
+  PP_GRAPHICS3DATTRIB_TRANSPARENT_BLUE_VALUE = 0x3035,
+  // Transparent green value.
+  PP_GRAPHICS3DATTRIB_TRANSPARENT_GREEN_VALUE = 0x3036,
+  // Transparent red value.
+  PP_GRAPHICS3DATTRIB_TRANSPARENT_RED_VALUE = 0x3037,
+  // Attrib list terminator.
+  PP_GRAPHICS3DATTRIB_NONE = 0x3038,
+  // TODO(alokp): Find out if we can support swap intervals. Remove them if not.
+  // Minimum swap interval.
+  PP_GRAPHICS3DATTRIB_MIN_SWAP_INTERVAL = 0x303B,
+  // Maximum swap interval.
+  PP_GRAPHICS3DATTRIB_MAX_SWAP_INTERVAL = 0x303C,
+  // Bits of Luminance in the color buffer.
+  PP_GRAPHICS3DATTRIB_LUMINANCE_SIZE = 0x303D,
+  // Bits of Alpha Mask in the mask buffer.
+  PP_GRAPHICS3DATTRIB_ALPHA_MASK_SIZE = 0x303E,
+  // Color buffer type.
+  PP_GRAPHICS3DATTRIB_COLOR_BUFFER_TYPE = 0x303F,
+  // Which client APIs are supported.
+  PP_GRAPHICS3DATTRIB_RENDERABLE_TYPE = 0x3040,
+  // Whether contexts created with this config are conformant.
+  PP_GRAPHICS3DATTRIB_CONFORMANT = 0x3042,
+
+  // Surface-specific attributes.
+  // Height of surface in pixels.
+  PP_GRAPHICS3DATTRIB_HEIGHT = 0x3056,
+  // Width of surface in pixels.
+  PP_GRAPHICS3DATTRIB_WIDTH = 0x3057,
+  // If true, largest possible surface is created.
+  PP_GRAPHICS3DATTRIB_LARGEST_SURFACE = 0x3058,
+  // The buffer which client API renders to.
+  PP_GRAPHICS3DATTRIB_RENDER_BUFFER = 0x3086,
+  // Specifies the effect on the color buffer of posting a surface
+  // with SwapBuffers.
+  PP_GRAPHICS3DATTRIB_SWAP_BEHAVIOR = 0x3093,
+  // Specifies the filter to use when resolving the multisample buffer.
+  PP_GRAPHICS3DATTRIB_MULTISAMPLE_RESOLVE = 0x3099,
+
+  // Context-specific attributes.
+  // Which client API the context supports.
+  PP_GRAPHICS3DATTRIB_CONTEXT_CLIENT_TYPE = 0x3097,
+  // Version of OpenGL ES supported by a context.
+  // An attribute value of 1 specifies OpenGL ES 1.x.
+  // An attribute value of 2 specifies OpenGL ES 2.x.
+  // The default value for PP_GRAPHICS3DATTRIB_CONTEXT_CLIENT_VERSION is 1.
+  // This attribute is only meaningful for an OpenGL ES context.
+  PP_GRAPHICS3DATTRIB_CONTEXT_CLIENT_VERSION = 0x3098
+};
+
+enum PP_Graphics3DAttribValue_Dev {
+  PP_GRAPHICS3DATTRIBVALUE_NONE = 0x3038,
+
+  // PP_GRAPHICS3DATTRIB_CONFIG_CAVEAT values.
+  PP_GRAPHICS3DATTRIBVALUE_SLOW_CONFIG = 0x3050,
+  PP_GRAPHICS3DATTRIBVALUE_NON_CONFORMANT_CONFIG = 0x3051,
+
+  // PP_GRAPHICS3DATTRIB_TRANSPARENT_TYPE values.
+  PP_GRAPHICS3DATTRIBVALUE_TRANSPARENT_RGB = 0x3052,
+
+  // PP_GRAPHICS3DATTRIB_COLOR_BUFFER_TYPE values.
+  PP_GRAPHICS3DATTRIBVALUE_RGB_BUFFER = 0x308E,
+  PP_GRAPHICS3DATTRIBVALUE_LUMINANCE_BUFFER = 0x308F,
+
+  // PP_GRAPHICS3DATTRIB_SURFACE_TYPE mask bits.
+  // Indicates if box filter (PP_GRAPHICS3DATTRIBVALUE_MULTISAMPLE_RESOLVE_BOX)
+  // for resolving the multisample buffer is supported.
+  PP_GRAPHICS3DATTRIBVALUE_MULTISAMPLE_RESOLVE_BOX_BIT = 0x0200,
+  PP_GRAPHICS3DATTRIBVALUE_SWAP_BEHAVIOR_PRESERVED_BIT = 0x0400,
+
+  // PP_GRAPHICS3DATTRIB_RENDERABLE_TYPE mask bits.
+  PP_GRAPHICS3DATTRIBVALUE_OPENGL_ES_BIT = 0x0001,
+  PP_GRAPHICS3DATTRIBVALUE_OPENGL_ES2_BIT = 0x0004,
+  PP_GRAPHICS3DATTRIBVALUE_OPENGL_BIT = 0x0008,
+
+  // PP_GRAPHICS3DATTRIB_RENDER_BUFFER values.
+  // The default value is PP_GRAPHICS3DATTRIBVALUE_BACK_BUFFER.
+  // Surface contains two color buffers and client APIs render into
+  // the back buffer.
+  PP_GRAPHICS3DATTRIBVALUE_BACK_BUFFER = 0x3084,
+  // Surface contains a single color buffer.
+  PP_GRAPHICS3DATTRIBVALUE_SINGLE_BUFFER = 0x3085,
+
+  // PP_GRAPHICS3DATTRIB_SWAP_BEHAVIOR values.
+  // The initial value is chosen by the implementation.
+  // Indicates that color buffer contents are unaffected.
+  PP_GRAPHICS3DATTRIBVALUE_BUFFER_PRESERVED = 0x3094,
+  // Indicates that color buffer contents may be destroyed or changed.
+  PP_GRAPHICS3DATTRIBVALUE_BUFFER_DESTROYED = 0x3095,
+
+  // PP_GRAPHICS3DATTRIB_MULTISAMPLE_RESOLVE values.
+  // The default value is PP_GRAPHICS3DATTRIBVALUE_MULTISAMPLE_RESOLVE_DEFAULT.
+  // The default implementation-defined filtering method.
+  PP_GRAPHICS3DATTRIBVALUE_MULTISAMPLE_RESOLVE_DEFAULT = 0x309A,
+  // One-pixel wide box filter placing equal weighting on all
+  // multisample values.
+  PP_GRAPHICS3DATTRIBVALUE_MULTISAMPLE_RESOLVE_BOX = 0x309B,
+
+  // PP_GRAPHICS3DATTRIB_CONTEXT_CLIENT_TYPE values.
+  PP_GRAPHICS3DATTRIBVALUE_OPENGL_ES_API = 0x30A0,
+  PP_GRAPHICS3DATTRIBVALUE_OPENGL_API = 0x30A2,
+};
+
+typedef int32_t PP_Graphics3DConfig_Dev;
+
+#endif  // PPAPI_C_DEV_PP_GRAPHICS_3D_DEV_H_