diff options
Diffstat (limited to 'src/VBox/Additions/common/crOpenGL/entrypoints.py')
| -rwxr-xr-x | src/VBox/Additions/common/crOpenGL/entrypoints.py | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/crOpenGL/entrypoints.py b/src/VBox/Additions/common/crOpenGL/entrypoints.py new file mode 100755 index 00000000..bdd93e75 --- /dev/null +++ b/src/VBox/Additions/common/crOpenGL/entrypoints.py @@ -0,0 +1,180 @@ +# Copyright (c) 2001, Stanford University +# All rights reserved. +# +# See the file LICENSE.txt for information on redistributing this software. + + +""" +This module generates C entrypoints for all the OpenGL functions +and the special Chromium meta/glue functions. +""" + + +from __future__ import print_function +import sys + +import apiutil + + +def GenerateEntrypoints(hacks = []): + """Emit code for all the OpenGL/Chromium entrypoints. + hacks is an optional list of functions which are special cased. + """ + + apiutil.CopyrightC() + + print('#define GL_GLEXT_PROTOTYPES') + print('#include <stdio.h>') + print('#include <stdlib.h>') + print('#include <GL/gl.h>') + print('#include "chromium.h"') + print('#include "stub.h"') + print('#include "dri_glx.h"') + print('') + print('#ifdef __GNUC__') + print('# if (__GNUC__ << 16) + __GNUC_MINOR__ >= 0x40002') + print('# pragma GCC diagnostic ignored "-Wunused-parameter"') + print('# endif') + print('#endif') + + + # Get sorted list of dispatched functions. + # The order is very important - it must match cr_opcodes.h + # and spu_dispatch_table.h + keys = apiutil.GetDispatchedFunctions(sys.argv[1]+"/APIspec.txt") + + for index in range(len(keys)): + func_name = keys[index] + if apiutil.Category(func_name) == "Chromium": + # this function is defined in stub.c + continue + + return_type = apiutil.ReturnType(func_name) + params = apiutil.Parameters(func_name) + + if func_name in hacks: + print("/* hacked entrypoint: %s */" % func_name) + if func_name == "TexImage3D": + # Pretty common: internalformat is GLenum, not GLint + print("void glTexImage3D( GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels )") + print("{") + print("\tglim.TexImage3D( target, level, (GLint) internalformat, width, height, depth, border, format, type, pixels );") + print("}") + elif func_name == "TexImage2D": + # Pretty common: internalformat is GLenum, not GLint + print("void glTexImage2D( GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels )") + print("{") + print("\tglim.TexImage2D( target, level, (GLint) internalformat, width, height, border, format, type, pixels );") + print("}") + elif func_name == "TexImage1D": + # Pretty common: internalformat is GLenum, not GLint + print("void glTexImage1D( GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels )") + print("{") + print("\tglim.TexImage1D( target, level, (GLint) internalformat, width, border, format, type, pixels );") + print("}") + elif func_name == "EdgeFlagPointer": + # second arg is GLboolean instead of GLvoid + print("void glEdgeFlagPointer( GLsizei stride, const GLboolean *pointer )") + print("{") + print("\tglim.EdgeFlagPointer( stride, pointer );") + print("}") + elif func_name == "ProgramParameters4fvNV": + print("void glProgramParameters4fvNV( GLenum target, GLuint index, GLuint num, const GLfloat *params )") + print("{") + print("\tglim.ProgramParameters4fvNV( target, index, num, params );") + print("}") + elif func_name == "MultiDrawElementsEXT": + print("void glMultiDrawElementsEXT(GLenum mode, GLsizei *count, GLenum type, const GLvoid **indices, GLsizei primcount)") + print("{") + print("\tglim.MultiDrawElementsEXT(mode, count,type, indices, primcount);") + print("}") + elif func_name == "ProgramParameters4dvNV": + print("void glProgramParameters4dvNV( GLenum target, GLuint index, GLuint num, const GLdouble *params )") + print("{") + print("\tglim.ProgramParameters4dvNV( target, index, num, params );") + print("}") + else: + # the usual path + print("%s VBOXGLTAG(gl%s)(%s);" % (return_type, func_name, apiutil.MakeDeclarationString(params))) + print("") + print("%s VBOXGLTAG(gl%s)(%s)" % (return_type, func_name, apiutil.MakeDeclarationString(params))) + print("{") + print("\t", end="") + if return_type != "void": + print("return ", end=" ") + print("glim.%s(%s);" % (func_name, apiutil.MakeCallString(params))) + print("}") + print("") + + print('/*') + print('* Aliases') + print('*/') + + # Now loop over all the functions and take care of any aliases + allkeys = apiutil.GetAllFunctions(sys.argv[1]+"/APIspec.txt") + for func_name in allkeys: + if "omit" in apiutil.ChromiumProps(func_name): + continue + + if func_name in keys: + # we already processed this function earlier + continue + + # alias is the function we're aliasing + alias = apiutil.Alias(func_name) + if alias: + if func_name in hacks: + print("/* hacked entrypoint: %s */" % func_name) + if func_name == "MultiDrawArrays": + print("void glMultiDrawArrays( GLenum mode, const GLint *first, const GLsizei *count, GLsizei primcount )") + print("{") + print("\tglim.MultiDrawArraysEXT( mode, (GLint*)first, (GLsizei*)count, primcount );") + print("}") + elif func_name == "BufferData": + print("void glBufferData(GLenum target, GLsizeiptr size, const GLvoid *data, GLenum usage)") + print("{") + print("\tglim.BufferDataARB(target, size, data, usage);") + print("}") + elif func_name == "BufferSubData": + print("void glBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid *data)") + print("{") + print("\tglim.BufferSubDataARB(target, offset, size, data);") + print("}") + elif func_name == "GetBufferSubData": + print("void glGetBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, GLvoid *data)") + print("{") + print("\tglim.GetBufferSubDataARB(target, offset, size, data);") + print("}") + else: + return_type = apiutil.ReturnType(func_name) + params = apiutil.Parameters(func_name) + print("%s VBOXGLTAG(gl%s)(%s);" % (return_type, func_name, apiutil.MakeDeclarationString(params))) + print("") + print("%s VBOXGLTAG(gl%s)(%s)" % (return_type, func_name, apiutil.MakeDeclarationString(params))) + print("{") + print("\t", end="") + if return_type != "void": + print("return ", end=" ") + print("glim.%s(%s);" % (alias, apiutil.MakeCallString(params))) + print("}") + print("") + + print('/*') + print('* No-op stubs') + print('*/') + + # Now generate no-op stub functions + for func_name in allkeys: + if "stub" in apiutil.ChromiumProps(func_name): + return_type = apiutil.ReturnType(func_name) + params = apiutil.Parameters(func_name) + + print("%s VBOXGLTAG(gl%s)(%s);" % (return_type, func_name, apiutil.MakeDeclarationString(params))) + print("") + print("%s VBOXGLTAG(gl%s)(%s)" % (return_type, func_name, apiutil.MakeDeclarationString(params))) + print("{") + if return_type != "void": + print("return (%s) 0" % return_type) + print("}") + print("") + |