--- /dev/null
+# Copyright (C) 2015 Intel Corporation
+#
+# 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 (including the next
+# paragraph) 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.
+
+class exec_info():
+ """Information relating GL APIs to a function.
+
+ Each of the four attributes of this class, compatibility, core, es1, and
+ es2, specify the minimum API version where a function can possibly exist
+ in Mesa. The version is specified as an integer of (real GL version *
+ 10). For example, glCreateProgram was added in OpenGL 2.0, so
+ compatibility=20 and core=31.
+
+ If the attribute is None, then it cannot be supported by that
+ API. For example, glNewList was removed from core profiles, so
+ compatibility=10 and core=None.
+
+ Each of the attributes that is not None must have a valid value. The
+ valid ranges are:
+
+ compatiblity: [10, 30]
+ core: [31, )
+ es1: [10, 11]
+ es2: [20, )
+
+ These ranges are enforced by the constructor.
+ """
+ def __init__(self, compatibility=None, core=None, es1=None, es2=None):
+ if compatibility is not None:
+ assert isinstance(compatibility, int)
+ assert compatibility >= 10
+ assert compatibility <= 30
+
+ if core is not None:
+ assert isinstance(core, int)
+ assert core >= 31
+
+ if es1 is not None:
+ assert isinstance(es1, int)
+ assert es1 == 10 or es1 == 11
+
+ if es2 is not None:
+ assert isinstance(es2, int)
+ assert es2 >= 20
+
+ self.compatibility = compatibility
+ self.core = core
+ self.es1 = es1
+ self.es2 = es2
+
+functions = {
+ # OpenGL 3.1 / GL_ARB_texture_buffer_object. Mesa only exposes this
+ # extension with core profile.
+ "TexBuffer": exec_info(core=31),
+
+ # OpenGL 3.2 / GL_ARB_geometry_shader4. Mesa does not support
+ # GL_ARB_geometry_shader4, so OpenGL 3.2 is required.
+ "FramebufferTexture": exec_info(core=32),
+
+ # OpenGL 4.0 / GL_ARB_gpu_shader_fp64. The extension spec says:
+ #
+ # "OpenGL 3.2 and GLSL 1.50 are required."
+ "Uniform1d": exec_info(core=32),
+ "Uniform2d": exec_info(core=32),
+ "Uniform3d": exec_info(core=32),
+ "Uniform4d": exec_info(core=32),
+ "Uniform1dv": exec_info(core=32),
+ "Uniform2dv": exec_info(core=32),
+ "Uniform3dv": exec_info(core=32),
+ "Uniform4dv": exec_info(core=32),
+ "UniformMatrix2dv": exec_info(core=32),
+ "UniformMatrix3dv": exec_info(core=32),
+ "UniformMatrix4dv": exec_info(core=32),
+ "UniformMatrix2x3dv": exec_info(core=32),
+ "UniformMatrix2x4dv": exec_info(core=32),
+ "UniformMatrix3x2dv": exec_info(core=32),
+ "UniformMatrix3x4dv": exec_info(core=32),
+ "UniformMatrix4x2dv": exec_info(core=32),
+ "UniformMatrix4x3dv": exec_info(core=32),
+ "GetUniformdv": exec_info(core=32),
+
+ # OpenGL 4.1 / GL_ARB_vertex_attrib_64bit. The extension spec says:
+ #
+ # "OpenGL 3.0 and GLSL 1.30 are required.
+ #
+ # ARB_gpu_shader_fp64 (or equivalent functionality) is required."
+ #
+ # For Mesa this effectively means OpenGL 3.2 is required. It seems
+ # unlikely that Mesa will ever get support for any of the NV extensions
+ # that add "equivalent functionality."
+ "VertexAttribL1d": exec_info(core=32),
+ "VertexAttribL2d": exec_info(core=32),
+ "VertexAttribL3d": exec_info(core=32),
+ "VertexAttribL4d": exec_info(core=32),
+ "VertexAttribL1dv": exec_info(core=32),
+ "VertexAttribL2dv": exec_info(core=32),
+ "VertexAttribL3dv": exec_info(core=32),
+ "VertexAttribL4dv": exec_info(core=32),
+ "VertexAttribLPointer": exec_info(core=32),
+ "GetVertexAttribLdv": exec_info(core=32),
+
+ # OpenGL 4.1 / GL_ARB_viewport_array. The extension spec says:
+ #
+ # "OpenGL 3.2 or the EXT_geometry_shader4 or ARB_geometry_shader4
+ # extensions are required."
+ #
+ # Mesa does not support either of the geometry shader extensions, so
+ # OpenGL 3.2 is required.
+ "ViewportArrayv": exec_info(core=32),
+ "ViewportIndexedf": exec_info(core=32),
+ "ViewportIndexedfv": exec_info(core=32),
+ "ScissorArrayv": exec_info(core=32),
+ "ScissorIndexed": exec_info(core=32),
+ "ScissorIndexedv": exec_info(core=32),
+ "DepthRangeArrayv": exec_info(core=32),
+ "DepthRangeIndexed": exec_info(core=32),
+ # GetFloati_v also GL_ARB_shader_atomic_counters
+ # GetDoublei_v also GL_ARB_shader_atomic_counters
+
+ # OpenGL 4.3 / GL_ARB_texture_buffer_range. Mesa can expose the extension
+ # with OpenGL 3.1.
+ "TexBufferRange": exec_info(core=31),
+}
import license
import gl_XML
import sys
+import apiexec
exec_flavor_map = {
raise Exception(
'Unrecognized exec flavor {0!r}'.format(f.exec_flavor))
condition_parts = []
- if f.desktop:
- if f.deprecated:
+ if f.name in apiexec.functions:
+ ex = apiexec.functions[f.name]
+ unconditional_count = 0
+
+ if ex.compatibility is not None:
condition_parts.append('ctx->API == API_OPENGL_COMPAT')
- else:
- condition_parts.append('_mesa_is_desktop_gl(ctx)')
- if 'es1' in f.api_map:
- condition_parts.append('ctx->API == API_OPENGLES')
- if 'es2' in f.api_map:
- if f.api_map['es2'] > 2.0:
- condition_parts.append('(ctx->API == API_OPENGLES2 && ctx->Version >= {0})'.format(int(f.api_map['es2'] * 10)))
- else:
- condition_parts.append('ctx->API == API_OPENGLES2')
+ unconditional_count += 1
+
+ if ex.core is not None:
+ condition_parts.append('ctx->API == API_OPENGL_CORE')
+ unconditional_count += 1
+
+ if ex.es1 is not None:
+ condition_parts.append('ctx->API == API_OPENGLES')
+ unconditional_count += 1
+
+ if ex.es2 is not None:
+ if ex.es2 > 20:
+ condition_parts.append('(ctx->API == API_OPENGLES2 && ctx->Version >= {0})'.format(ex.es2))
+ else:
+ condition_parts.append('ctx->API == API_OPENGLES2')
+ unconditional_count += 1
+
+ # If the function is unconditionally available in all four
+ # APIs, then it is always available. Replace the complex
+ # tautology condition with "true" and let GCC do the right
+ # thing.
+ if unconditional_count == 4:
+ condition_parts = ['true']
+ else:
+ if f.desktop:
+ if f.deprecated:
+ condition_parts.append('ctx->API == API_OPENGL_COMPAT')
+ else:
+ condition_parts.append('_mesa_is_desktop_gl(ctx)')
+ if 'es1' in f.api_map:
+ condition_parts.append('ctx->API == API_OPENGLES')
+ if 'es2' in f.api_map:
+ if f.api_map['es2'] > 2.0:
+ condition_parts.append('(ctx->API == API_OPENGLES2 && ctx->Version >= {0})'.format(int(f.api_map['es2'] * 10)))
+ else:
+ condition_parts.append('ctx->API == API_OPENGLES2')
+
if not condition_parts:
# This function does not exist in any API.
continue
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