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/**************************************************************************
*
* Copyright 2011 Jose Fonseca
* All Rights Reserved.
*
* 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 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.
*
**************************************************************************/
#include <string.h>
#include <algorithm>
#include <iostream>
#include <map>
#include <sstream>
#include "json.hpp"
#include "glproc.hpp"
#include "glsize.hpp"
#include "glstate.hpp"
#include "glstate_internal.hpp"
namespace glstate {
// Mapping from shader type to shader source, used to accumulated the sources
// of different shaders with same type.
typedef std::map<std::string, std::string> ShaderMap;
static void
getShaderSource(ShaderMap &shaderMap, GLuint shader)
{
if (!shader) {
return;
}
GLint shader_type = 0;
glGetShaderiv(shader, GL_SHADER_TYPE, &shader_type);
if (!shader_type) {
return;
}
GLint source_length = 0;
glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &source_length);
if (!source_length) {
return;
}
GLchar *source = new GLchar[source_length];
GLsizei length = 0;
source[0] = 0;
glGetShaderSource(shader, source_length, &length, source);
shaderMap[enumToString(shader_type)] += source;
delete [] source;
}
static void
getShaderObjSource(ShaderMap &shaderMap, GLhandleARB shaderObj)
{
if (!shaderObj) {
return;
}
GLint object_type = 0;
glGetObjectParameterivARB(shaderObj, GL_OBJECT_TYPE_ARB, &object_type);
if (object_type != GL_SHADER_OBJECT_ARB) {
return;
}
GLint shader_type = 0;
glGetObjectParameterivARB(shaderObj, GL_OBJECT_SUBTYPE_ARB, &shader_type);
if (!shader_type) {
return;
}
GLint source_length = 0;
glGetObjectParameterivARB(shaderObj, GL_OBJECT_SHADER_SOURCE_LENGTH_ARB, &source_length);
if (!source_length) {
return;
}
GLcharARB *source = new GLcharARB[source_length];
GLsizei length = 0;
source[0] = 0;
glGetShaderSource(shaderObj, source_length, &length, source);
shaderMap[enumToString(shader_type)] += source;
delete [] source;
}
static inline void
dumpProgram(JSONWriter &json, GLint program)
{
GLint attached_shaders = 0;
glGetProgramiv(program, GL_ATTACHED_SHADERS, &attached_shaders);
if (!attached_shaders) {
return;
}
ShaderMap shaderMap;
GLuint *shaders = new GLuint[attached_shaders];
GLsizei count = 0;
glGetAttachedShaders(program, attached_shaders, &count, shaders);
std::sort(shaders, shaders + count);
for (GLsizei i = 0; i < count; ++ i) {
getShaderSource(shaderMap, shaders[i]);
}
delete [] shaders;
for (ShaderMap::const_iterator it = shaderMap.begin(); it != shaderMap.end(); ++it) {
json.beginMember(it->first);
json.writeString(it->second);
json.endMember();
}
}
static inline void
dumpProgramObj(JSONWriter &json, GLhandleARB programObj)
{
GLint attached_shaders = 0;
glGetObjectParameterivARB(programObj, GL_OBJECT_ATTACHED_OBJECTS_ARB, &attached_shaders);
if (!attached_shaders) {
return;
}
ShaderMap shaderMap;
GLhandleARB *shaderObjs = new GLhandleARB[attached_shaders];
GLsizei count = 0;
glGetAttachedObjectsARB(programObj, attached_shaders, &count, shaderObjs);
std::sort(shaderObjs, shaderObjs + count);
for (GLsizei i = 0; i < count; ++ i) {
getShaderObjSource(shaderMap, shaderObjs[i]);
}
delete [] shaderObjs;
for (ShaderMap::const_iterator it = shaderMap.begin(); it != shaderMap.end(); ++it) {
json.beginMember(it->first);
json.writeString(it->second);
json.endMember();
}
}
/**
* Built-in uniforms can't be queried through glGetUniform*.
*/
static inline bool
isBuiltinUniform(const GLchar *name)
{
return name[0] == 'g' && name[1] == 'l' && name[2] == '_';
}
/*
* When fetching the uniform name of an array we usually get name[0]
* so we need to cut the trailing "[0]" in order to properly construct
* array names later. Otherwise we endup with stuff like
* uniformArray[0][0],
* uniformArray[0][1],
* instead of
* uniformArray[0],
* uniformArray[1].
*/
static std::string
resolveUniformName(const GLchar *name, GLint size)
{
std::string qualifiedName(name);
if (size > 1) {
std::string::size_type nameLength = qualifiedName.length();
static const char * const arrayStart = "[0]";
static const int arrayStartLen = 3;
if (qualifiedName.rfind(arrayStart) == (nameLength - arrayStartLen)) {
qualifiedName = qualifiedName.substr(0, nameLength - 3);
}
}
return qualifiedName;
}
static void
dumpUniformValues(JSONWriter &json, GLenum type, const void *values, GLint matrix_stride = 0, GLboolean is_row_major = GL_FALSE) {
GLenum elemType;
GLint numCols, numRows;
_gl_uniform_size(type, elemType, numCols, numRows);
if (!numCols || !numRows) {
json.writeNull();
}
size_t elemSize = _gl_type_size(elemType);
GLint row_stride = 0;
GLint col_stride = 0;
if (is_row_major) {
row_stride = elemSize;
col_stride = matrix_stride ? matrix_stride : numRows * elemSize;
} else {
col_stride = elemSize;
row_stride = matrix_stride ? matrix_stride : numCols * elemSize;
}
if (numRows > 1) {
json.beginArray();
}
for (GLint row = 0; row < numRows; ++row) {
if (numCols > 1) {
json.beginArray();
}
for (GLint col = 0; col < numCols; ++col) {
union {
const GLbyte *rawvalue;
const GLfloat *fvalue;
const GLdouble *dvalue;
const GLint *ivalue;
const GLuint *uivalue;
} u;
u.rawvalue = (const GLbyte *)values + row*row_stride + col*col_stride;
switch (elemType) {
case GL_FLOAT:
json.writeNumber(*u.fvalue);
break;
case GL_DOUBLE:
json.writeNumber(*u.dvalue);
break;
case GL_INT:
json.writeNumber(*u.ivalue);
break;
case GL_UNSIGNED_INT:
json.writeNumber(*u.uivalue);
break;
case GL_BOOL:
json.writeBool(*u.uivalue);
break;
default:
assert(0);
json.writeNull();
break;
}
}
if (numCols > 1) {
json.endArray();
}
}
if (numRows > 1) {
json.endArray();
}
}
/**
* Dump an uniform that belows to an uniform block.
*/
static void
dumpUniformBlock(JSONWriter &json, GLint program, GLint size, GLenum type, const GLchar *name, GLuint index, GLuint block_index) {
GLint offset = 0;
GLint array_stride = 0;
GLint matrix_stride = 0;
GLint is_row_major = GL_FALSE;
glGetActiveUniformsiv(program, 1, &index, GL_UNIFORM_OFFSET, &offset);
glGetActiveUniformsiv(program, 1, &index, GL_UNIFORM_ARRAY_STRIDE, &array_stride);
glGetActiveUniformsiv(program, 1, &index, GL_UNIFORM_MATRIX_STRIDE, &matrix_stride);
glGetActiveUniformsiv(program, 1, &index, GL_UNIFORM_IS_ROW_MAJOR, &is_row_major);
GLint slot = -1;
glGetActiveUniformBlockiv(program, block_index, GL_UNIFORM_BLOCK_BINDING, &slot);
if (slot == -1) {
return;
}
if (0) {
GLint active_uniform_block_max_name_length = 0;
glGetProgramiv(program, GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH, &active_uniform_block_max_name_length);
GLchar* block_name = new GLchar[active_uniform_block_max_name_length];
GLint block_data_size = 0;
glGetActiveUniformBlockiv(program, index, GL_UNIFORM_BLOCK_DATA_SIZE, &block_data_size);
GLsizei length = 0;
glGetActiveUniformBlockName(program, index, active_uniform_block_max_name_length, &length, block_name);
std::cerr
<< "uniform `" << name << "`, size " << size << ", type " << enumToString(type) << "\n"
<< " block " << block_index << ", name `" << block_name << "`, size " << block_data_size << "; binding " << slot << "; \n"
<< " offset " << offset << ", array stride " << array_stride << ", matrix stride " << matrix_stride << ", row_major " << is_row_major << "\n"
;
delete block_name;
}
GLint ubo = 0;
glGetIntegeri_v(GL_UNIFORM_BUFFER_BINDING, slot, &ubo);
GLint previous_ubo = 0;
glGetIntegerv(GL_UNIFORM_BUFFER_BINDING, &previous_ubo);
glBindBuffer(GL_UNIFORM_BUFFER, ubo);
const GLbyte *raw_data = (const GLbyte *)glMapBuffer(GL_UNIFORM_BUFFER, GL_READ_ONLY);
if (raw_data) {
std::string qualifiedName = resolveUniformName(name, size);
for (GLint i = 0; i < size; ++i) {
std::stringstream ss;
ss << qualifiedName;
if (size > 1) {
ss << '[' << i << ']';
}
std::string elemName = ss.str();
json.beginMember(elemName);
const GLbyte *row = raw_data + offset + array_stride*i;
dumpUniformValues(json, type, row, matrix_stride, is_row_major);
json.endMember();
}
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glBindBuffer(GL_UNIFORM_BUFFER, previous_ubo);
}
static void
dumpUniform(JSONWriter &json, GLint program, GLint size, GLenum type, const GLchar *name) {
GLenum elemType;
GLint numCols, numRows;
_gl_uniform_size(type, elemType, numCols, numRows);
if (elemType == GL_NONE) {
return;
}
union {
GLfloat fvalues[4*4];
GLdouble dvalues[4*4];
GLint ivalues[4*4];
GLuint uivalues[4*4];
} u;
GLint i;
std::string qualifiedName = resolveUniformName(name, size);
for (i = 0; i < size; ++i) {
std::stringstream ss;
ss << qualifiedName;
if (size > 1) {
ss << '[' << i << ']';
}
std::string elemName = ss.str();
GLint location = glGetUniformLocation(program, elemName.c_str());
assert(location != -1);
if (location == -1) {
continue;
}
json.beginMember(elemName);
switch (elemType) {
case GL_FLOAT:
glGetUniformfv(program, location, u.fvalues);
break;
case GL_DOUBLE:
glGetUniformdv(program, location, u.dvalues);
break;
case GL_INT:
glGetUniformiv(program, location, u.ivalues);
break;
case GL_UNSIGNED_INT:
glGetUniformuiv(program, location, u.uivalues);
break;
case GL_BOOL:
glGetUniformiv(program, location, u.ivalues);
break;
default:
assert(0);
break;
}
dumpUniformValues(json, type, &u);
json.endMember();
}
}
static void
dumpUniformARB(JSONWriter &json, GLhandleARB programObj, GLint size, GLenum type, const GLchar *name) {
GLenum elemType;
GLint numCols, numRows;
_gl_uniform_size(type, elemType, numCols, numRows);
GLint numElems = numCols * numRows;
if (elemType == GL_NONE) {
return;
}
GLfloat fvalues[4*4];
union {
GLdouble dvalues[4*4];
GLfloat fvalues[4*4];
GLint ivalues[4*4];
} u;
GLint i, j;
std::string qualifiedName = resolveUniformName(name, size);
for (i = 0; i < size; ++i) {
std::stringstream ss;
ss << qualifiedName;
if (size > 1) {
ss << '[' << i << ']';
}
std::string elemName = ss.str();
json.beginMember(elemName);
GLint location = glGetUniformLocationARB(programObj, elemName.c_str());
if (location == -1) {
continue;
}
switch (elemType) {
case GL_DOUBLE:
// glGetUniformdvARB does not exists
glGetUniformfvARB(programObj, location, fvalues);
for (j = 0; j < numElems; ++j) {
u.dvalues[j] = fvalues[j];
}
break;
case GL_FLOAT:
glGetUniformfvARB(programObj, location, fvalues);
break;
case GL_UNSIGNED_INT:
// glGetUniformuivARB does not exists
case GL_INT:
glGetUniformivARB(programObj, location, u.ivalues);
break;
case GL_BOOL:
glGetUniformivARB(programObj, location, u.ivalues);
break;
default:
assert(0);
break;
}
dumpUniformValues(json, type, &u);
json.endMember();
}
}
static inline void
dumpProgramUniforms(JSONWriter &json, GLint program)
{
GLint active_uniforms = 0;
glGetProgramiv(program, GL_ACTIVE_UNIFORMS, &active_uniforms);
if (!active_uniforms) {
return;
}
GLint active_uniform_max_length = 0;
glGetProgramiv(program, GL_ACTIVE_UNIFORM_MAX_LENGTH, &active_uniform_max_length);
GLchar *name = new GLchar[active_uniform_max_length];
if (!name) {
return;
}
for (GLuint index = 0; (GLint)index < active_uniforms; ++index) {
GLsizei length = 0;
GLint size = 0;
GLenum type = GL_NONE;
glGetActiveUniform(program, index, active_uniform_max_length, &length, &size, &type, name);
if (isBuiltinUniform(name)) {
continue;
}
GLint location = glGetUniformLocation(program, name);
if (location != -1) {
dumpUniform(json, program, size, type, name);
continue;
}
GLint block_index = -1;
glGetActiveUniformsiv(program, 1, &index, GL_UNIFORM_BLOCK_INDEX, &block_index);
if (block_index != -1) {
dumpUniformBlock(json, program, size, type, name, index, block_index);
continue;
}
assert(0);
}
delete [] name;
}
static inline void
dumpProgramObjUniforms(JSONWriter &json, GLhandleARB programObj)
{
GLint active_uniforms = 0;
glGetObjectParameterivARB(programObj, GL_OBJECT_ACTIVE_UNIFORMS_ARB, &active_uniforms);
if (!active_uniforms) {
return;
}
GLint active_uniform_max_length = 0;
glGetObjectParameterivARB(programObj, GL_OBJECT_ACTIVE_UNIFORM_MAX_LENGTH_ARB, &active_uniform_max_length);
GLchar *name = new GLchar[active_uniform_max_length];
if (!name) {
return;
}
for (GLint index = 0; index < active_uniforms; ++index) {
GLsizei length = 0;
GLint size = 0;
GLenum type = GL_NONE;
glGetActiveUniformARB(programObj, index, active_uniform_max_length, &length, &size, &type, name);
if (isBuiltinUniform(name)) {
continue;
}
dumpUniformARB(json, programObj, size, type, name);
}
delete [] name;
}
static inline void
dumpArbProgram(JSONWriter &json, GLenum target)
{
if (!glIsEnabled(target)) {
return;
}
GLint program_length = 0;
glGetProgramivARB(target, GL_PROGRAM_LENGTH_ARB, &program_length);
if (!program_length) {
return;
}
GLchar *source = new GLchar[program_length + 1];
source[0] = 0;
glGetProgramStringARB(target, GL_PROGRAM_STRING_ARB, source);
source[program_length] = 0;
json.beginMember(enumToString(target));
json.writeString(source);
json.endMember();
delete [] source;
}
static inline void
dumpArbProgramUniforms(JSONWriter &json, GLenum target, const char *prefix)
{
if (!glIsEnabled(target)) {
return;
}
GLint program_parameters = 0;
glGetProgramivARB(target, GL_PROGRAM_PARAMETERS_ARB, &program_parameters);
if (!program_parameters) {
return;
}
GLint max_program_local_parameters = 0;
glGetProgramivARB(target, GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB, &max_program_local_parameters);
for (GLint index = 0; index < max_program_local_parameters; ++index) {
GLdouble params[4] = {0, 0, 0, 0};
glGetProgramLocalParameterdvARB(target, index, params);
if (!params[0] && !params[1] && !params[2] && !params[3]) {
continue;
}
char name[256];
snprintf(name, sizeof name, "%sprogram.local[%i]", prefix, index);
json.beginMember(name);
json.beginArray();
json.writeNumber(params[0]);
json.writeNumber(params[1]);
json.writeNumber(params[2]);
json.writeNumber(params[3]);
json.endArray();
json.endMember();
}
GLint max_program_env_parameters = 0;
glGetProgramivARB(target, GL_MAX_PROGRAM_ENV_PARAMETERS_ARB, &max_program_env_parameters);
for (GLint index = 0; index < max_program_env_parameters; ++index) {
GLdouble params[4] = {0, 0, 0, 0};
glGetProgramEnvParameterdvARB(target, index, params);
if (!params[0] && !params[1] && !params[2] && !params[3]) {
continue;
}
char name[256];
snprintf(name, sizeof name, "%sprogram.env[%i]", prefix, index);
json.beginMember(name);
json.beginArray();
json.writeNumber(params[0]);
json.writeNumber(params[1]);
json.writeNumber(params[2]);
json.writeNumber(params[3]);
json.endArray();
json.endMember();
}
}
static void
dumpProgramUniformsStage(JSONWriter &json, GLint program, const char *stage)
{
if (program) {
json.beginMember(stage);
json.beginObject();
dumpProgramUniforms(json, program);
json.endObject();
json.endMember();
}
}
void
dumpShadersUniforms(JSONWriter &json, Context &context)
{
GLint pipeline = 0;
GLint vertex_program = 0;
GLint fragment_program = 0;
GLint geometry_program = 0;
GLint tess_control_program = 0;
GLint tess_evaluation_program = 0;
if (!context.ES) {
glGetIntegerv(GL_PROGRAM_PIPELINE_BINDING, &pipeline);
if (pipeline) {
glGetProgramPipelineiv(pipeline, GL_VERTEX_SHADER, &vertex_program);
glGetProgramPipelineiv(pipeline, GL_FRAGMENT_SHADER, &fragment_program);
glGetProgramPipelineiv(pipeline, GL_GEOMETRY_SHADER, &geometry_program);
glGetProgramPipelineiv(pipeline, GL_TESS_CONTROL_SHADER, &tess_control_program);
glGetProgramPipelineiv(pipeline, GL_TESS_EVALUATION_SHADER, &tess_evaluation_program);
}
}
GLint program = 0;
GLhandleARB programObj = 0;
if (!pipeline) {
glGetIntegerv(GL_CURRENT_PROGRAM, &program);
if (!context.ES && !program) {
programObj = glGetHandleARB(GL_PROGRAM_OBJECT_ARB);
}
}
json.beginMember("shaders");
json.beginObject();
if (pipeline) {
dumpProgram(json, vertex_program);
dumpProgram(json, fragment_program);
dumpProgram(json, geometry_program);
dumpProgram(json, tess_control_program);
dumpProgram(json, tess_evaluation_program);
} else if (program) {
dumpProgram(json, program);
} else if (programObj) {
dumpProgramObj(json, programObj);
} else {
dumpArbProgram(json, GL_FRAGMENT_PROGRAM_ARB);
dumpArbProgram(json, GL_VERTEX_PROGRAM_ARB);
}
json.endObject();
json.endMember(); // shaders
json.beginMember("uniforms");
json.beginObject();
if (pipeline) {
dumpProgramUniformsStage(json, vertex_program, "GL_VERTEX_SHADER");
dumpProgramUniformsStage(json, fragment_program, "GL_FRAGMENT_SHADER");
dumpProgramUniformsStage(json, geometry_program, "GL_GEOMETRY_SHADER");
dumpProgramUniformsStage(json, tess_control_program, "GL_TESS_CONTROL_SHADER");
dumpProgramUniformsStage(json, tess_evaluation_program, "GL_TESS_EVALUATION_SHADER");
} else if (program) {
dumpProgramUniforms(json, program);
} else if (programObj) {
dumpProgramObjUniforms(json, programObj);
} else {
dumpArbProgramUniforms(json, GL_FRAGMENT_PROGRAM_ARB, "fp.");
dumpArbProgramUniforms(json, GL_VERTEX_PROGRAM_ARB, "vp.");
}
json.endObject();
json.endMember(); // uniforms
}
} /* namespace glstate */
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