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OpenSubdiv/opensubdiv/osd/glDrawRegistry.cpp
jcowles eb09b9e14c Use obj targets for faster CPU/GPU lib builds 
Further leverage cmake object libraries to share object files for CPU
and GPU OSD libraries, avoiding duplicate complation for dynamic/static
build passes.

CMake restricts object library inputs to header and source files, so the
.inc files were renamed to .gen.h (which seems like a better name
anyway) to make CMake happy.

Also updated the .gitignore file to ignore .gen.h files.

Conflicts:
	opensubdiv/osd/CMakeLists.txt
2014-01-03 14:52:35 -08:00

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//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#include "../osd/glDrawRegistry.h"
#include "../osd/error.h"
#include "../osd/opengl.h"
#include <sstream>
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
OsdGLDrawConfig::~OsdGLDrawConfig()
{
glDeleteProgram(program);
}
#if defined(GL_ARB_tessellation_shader) || defined(GL_VERSION_4_0)
static const char *commonShaderSource =
#include "glslPatchCommon.gen.h"
;
static const char *ptexShaderSource =
#include "glslPtexCommon.gen.h"
;
static const char *bsplineShaderSource =
#include "glslPatchBSpline.gen.h"
;
static const char *gregoryShaderSource =
#include "glslPatchGregory.gen.h"
;
static const char *transitionShaderSource =
#include "glslPatchTransition.gen.h"
;
#endif
OsdGLDrawRegistryBase::~OsdGLDrawRegistryBase() {}
OsdGLDrawSourceConfig *
OsdGLDrawRegistryBase::_CreateDrawSourceConfig(
OsdDrawContext::PatchDescriptor const & desc)
{
OsdGLDrawSourceConfig * sconfig = _NewDrawSourceConfig();
#if defined(GL_ARB_tessellation_shader) || defined(GL_VERSION_4_0)
sconfig->commonShader.source = commonShaderSource;
if (IsPtexEnabled()) {
sconfig->commonShader.source += ptexShaderSource;
}
{
std::ostringstream ss;
ss << (int)desc.GetMaxValence();
sconfig->commonShader.AddDefine("OSD_MAX_VALENCE", ss.str());
ss.str("");
ss << (int)desc.GetNumElements();
sconfig->commonShader.AddDefine("OSD_NUM_ELEMENTS", ss.str());
}
if (desc.GetPattern() == FarPatchTables::NON_TRANSITION) {
switch (desc.GetType()) {
case FarPatchTables::REGULAR:
sconfig->vertexShader.source = bsplineShaderSource;
sconfig->vertexShader.version = "#version 410\n";
sconfig->vertexShader.AddDefine("OSD_PATCH_VERTEX_BSPLINE_SHADER");
sconfig->tessControlShader.source = bsplineShaderSource;
sconfig->tessControlShader.version = "#version 410\n";
sconfig->tessControlShader.AddDefine("OSD_PATCH_TESS_CONTROL_BSPLINE_SHADER");
sconfig->tessEvalShader.source = bsplineShaderSource;
sconfig->tessEvalShader.version = "#version 410\n";
sconfig->tessEvalShader.AddDefine("OSD_PATCH_TESS_EVAL_BSPLINE_SHADER");
break;
case FarPatchTables::BOUNDARY:
sconfig->vertexShader.source = bsplineShaderSource;
sconfig->vertexShader.version = "#version 410\n";
sconfig->vertexShader.AddDefine("OSD_PATCH_VERTEX_BSPLINE_SHADER");
sconfig->tessControlShader.source = bsplineShaderSource;
sconfig->tessControlShader.version = "#version 410\n";
sconfig->tessControlShader.AddDefine("OSD_PATCH_TESS_CONTROL_BSPLINE_SHADER");
sconfig->tessControlShader.AddDefine("OSD_PATCH_BOUNDARY");
sconfig->tessEvalShader.source = bsplineShaderSource;
sconfig->tessEvalShader.version = "#version 410\n";
sconfig->tessEvalShader.AddDefine("OSD_PATCH_TESS_EVAL_BSPLINE_SHADER");
break;
case FarPatchTables::CORNER:
sconfig->vertexShader.source = bsplineShaderSource;
sconfig->vertexShader.version = "#version 410\n";
sconfig->vertexShader.AddDefine("OSD_PATCH_VERTEX_BSPLINE_SHADER");
sconfig->tessControlShader.source = bsplineShaderSource;
sconfig->tessControlShader.version = "#version 410\n";
sconfig->tessControlShader.AddDefine("OSD_PATCH_TESS_CONTROL_BSPLINE_SHADER");
sconfig->tessControlShader.AddDefine("OSD_PATCH_CORNER");
sconfig->tessEvalShader.source = bsplineShaderSource;
sconfig->tessEvalShader.version = "#version 410\n";
sconfig->tessEvalShader.AddDefine("OSD_PATCH_TESS_EVAL_BSPLINE_SHADER");
break;
case FarPatchTables::GREGORY:
sconfig->vertexShader.source = gregoryShaderSource;
sconfig->vertexShader.version = "#version 410\n";
sconfig->vertexShader.AddDefine("OSD_PATCH_VERTEX_GREGORY_SHADER");
sconfig->tessControlShader.source = gregoryShaderSource;
sconfig->tessControlShader.version = "#version 410\n";
sconfig->tessControlShader.AddDefine("OSD_PATCH_TESS_CONTROL_GREGORY_SHADER");
sconfig->tessEvalShader.source = gregoryShaderSource;
sconfig->tessEvalShader.version = "#version 410\n";
sconfig->tessEvalShader.AddDefine("OSD_PATCH_TESS_EVAL_GREGORY_SHADER");
break;
case FarPatchTables::GREGORY_BOUNDARY:
sconfig->vertexShader.source = gregoryShaderSource;
sconfig->vertexShader.version = "#version 410\n";
sconfig->vertexShader.AddDefine("OSD_PATCH_VERTEX_GREGORY_SHADER");
sconfig->vertexShader.AddDefine("OSD_PATCH_GREGORY_BOUNDARY");
sconfig->tessControlShader.source = gregoryShaderSource;
sconfig->tessControlShader.version = "#version 410\n";
sconfig->tessControlShader.AddDefine("OSD_PATCH_TESS_CONTROL_GREGORY_SHADER");
sconfig->tessControlShader.AddDefine("OSD_PATCH_GREGORY_BOUNDARY");
sconfig->tessEvalShader.source = gregoryShaderSource;
sconfig->tessEvalShader.version = "#version 410\n";
sconfig->tessEvalShader.AddDefine("OSD_PATCH_TESS_EVAL_GREGORY_SHADER");
sconfig->tessEvalShader.AddDefine("OSD_PATCH_GREGORY_BOUNDARY");
break;
default: // POINTS, LINES, QUADS, TRIANGLES
// do nothing
break;
}
} else { // pattern != NON_TRANSITION
sconfig->vertexShader.source = bsplineShaderSource;
sconfig->vertexShader.version = "#version 410\n";
sconfig->vertexShader.AddDefine("OSD_PATCH_VERTEX_BSPLINE_SHADER");
sconfig->tessControlShader.source =
std::string(transitionShaderSource) + bsplineShaderSource;
sconfig->tessControlShader.version = "#version 410\n";
sconfig->tessControlShader.AddDefine("OSD_PATCH_TESS_CONTROL_BSPLINE_SHADER");
sconfig->tessControlShader.AddDefine("OSD_PATCH_TRANSITION");
sconfig->tessEvalShader.source =
std::string(transitionShaderSource) + bsplineShaderSource;
sconfig->tessEvalShader.version = "#version 410\n";
sconfig->tessEvalShader.AddDefine("OSD_PATCH_TESS_EVAL_BSPLINE_SHADER");
sconfig->tessEvalShader.AddDefine("OSD_PATCH_TRANSITION");
int pattern = desc.GetPattern() - 1;
int rotation = desc.GetRotation();
int subpatch = desc.GetSubPatch();
std::ostringstream ss;
ss << "OSD_TRANSITION_PATTERN" << pattern << subpatch;
sconfig->tessControlShader.AddDefine(ss.str());
sconfig->tessEvalShader.AddDefine(ss.str());
ss.str("");
ss << rotation;
sconfig->tessControlShader.AddDefine("OSD_TRANSITION_ROTATE", ss.str());
sconfig->tessEvalShader.AddDefine("OSD_TRANSITION_ROTATE", ss.str());
if (desc.GetType() == FarPatchTables::BOUNDARY) {
sconfig->tessControlShader.AddDefine("OSD_PATCH_BOUNDARY");
} else if (desc.GetType() == FarPatchTables::CORNER) {
sconfig->tessControlShader.AddDefine("OSD_PATCH_CORNER");
}
}
#endif
return sconfig;
}
static GLuint
_CompileShader(
GLenum shaderType,
OpenSubdiv::OsdDrawShaderSource const & common,
OpenSubdiv::OsdDrawShaderSource const & source)
{
const char *sources[4];
std::stringstream definitions;
for (int i=0; i<(int)common.defines.size(); ++i) {
definitions << "#define "
<< common.defines[i].first << " "
<< common.defines[i].second << "\n";
}
for (int i=0; i<(int)source.defines.size(); ++i) {
definitions << "#define "
<< source.defines[i].first << " "
<< source.defines[i].second << "\n";
}
std::string defString = definitions.str();
sources[0] = source.version.c_str();
sources[1] = defString.c_str();
sources[2] = common.source.c_str();
sources[3] = source.source.c_str();
GLuint shader = glCreateShader(shaderType);
glShaderSource(shader, 4, sources, NULL);
glCompileShader(shader);
GLint status;
glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
if( status == GL_FALSE ) {
GLint infoLogLength;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLogLength);
char * infoLog = new char[infoLogLength];
glGetShaderInfoLog(shader, infoLogLength, NULL, infoLog);
OsdError(OSD_GLSL_COMPILE_ERROR,
"Error compiling GLSL shader: %s\nDefines: \n%s\n",
infoLog, defString.c_str());
delete[] infoLog;
}
return shader;
}
OsdGLDrawConfig *
OsdGLDrawRegistryBase::_CreateDrawConfig(
OsdDrawContext::PatchDescriptor const & desc,
OsdGLDrawSourceConfig const * sconfig)
{
assert(sconfig);
OsdGLDrawConfig * config = _NewDrawConfig();
assert(config);
GLuint vertexShader =
sconfig->vertexShader.source.empty() ? 0 :
_CompileShader(GL_VERTEX_SHADER,
sconfig->commonShader, sconfig->vertexShader);
GLuint tessControlShader = 0;
GLuint tessEvalShader = 0;
#if defined(GL_ARB_tessellation_shader) || defined(GL_VERSION_4_0)
tessControlShader =
sconfig->tessControlShader.source.empty() ? 0 :
_CompileShader(GL_TESS_CONTROL_SHADER,
sconfig->commonShader, sconfig->tessControlShader);
tessEvalShader =
sconfig->tessEvalShader.source.empty() ? 0 :
_CompileShader(GL_TESS_EVALUATION_SHADER,
sconfig->commonShader, sconfig->tessEvalShader);
#endif
GLuint geometryShader = 0;
#if defined(GL_ARB_geometry_shader4) || defined(GL_VERSION_3_1)
geometryShader =
sconfig->geometryShader.source.empty() ? 0 :
_CompileShader(GL_GEOMETRY_SHADER,
sconfig->commonShader, sconfig->geometryShader);
#endif
GLuint fragmentShader =
sconfig->fragmentShader.source.empty() ? 0 :
_CompileShader(GL_FRAGMENT_SHADER,
sconfig->commonShader, sconfig->fragmentShader);
GLuint program = glCreateProgram();
if (vertexShader) glAttachShader(program, vertexShader);
if (tessControlShader) glAttachShader(program, tessControlShader);
if (tessEvalShader) glAttachShader(program, tessEvalShader);
if (geometryShader) glAttachShader(program, geometryShader);
if (fragmentShader) glAttachShader(program, fragmentShader);
glLinkProgram(program);
glDeleteShader(vertexShader);
glDeleteShader(tessControlShader);
glDeleteShader(tessEvalShader);
glDeleteShader(geometryShader);
glDeleteShader(fragmentShader);
GLint status;
glGetProgramiv(program, GL_LINK_STATUS, &status );
if( status == GL_FALSE ) {
GLint infoLogLength;
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &infoLogLength);
char * infoLog = new char[infoLogLength];
glGetProgramInfoLog(program, infoLogLength, NULL, infoLog);
OsdError(OSD_GLSL_LINK_ERROR,
"Error linking GLSL program: %s\n", infoLog);
delete[] infoLog;
}
config->program = program;
return config;
}
} // end namespace OPENSUBDIV_VERSION
} // end namespace OpenSubdiv
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