#include "error.h"
#include "misc.h"
#include "program.h"
+#include "programcompiler.h"
+#include "resources.h"
#include "shader.h"
using namespace std;
link();
}
+Program::Program(const std::string &source)
+{
+ init();
+
+ ProgramCompiler compiler;
+ if(source.find(';')==string::npos && source.size()>5 && !source.compare(source.size()-5, 5, ".glsl"))
+ {
+ if(RefPtr<IO::Seekable> io = Resources::get_builtins().open(source))
+ compiler.compile(*io, source);
+ else
+ throw IO::file_not_found(source);
+ }
+ else
+ compiler.compile(source);
+ compiler.add_shaders(*this);
+ link();
+}
+
Program::Program(const string &vert, const string &frag)
{
init();
IO::print("Program link info log:\n%s", info_log);
#endif
+ query_uniforms();
+ query_attributes();
+}
+
+void Program::query_uniforms()
+{
unsigned count = get_program_i(id, GL_ACTIVE_UNIFORMS);
vector<UniformInfo *> uniforms_by_index(count);
for(unsigned i=0; i<count; ++i)
legacy_vars = true;
}
- count = get_program_i(id, GL_ACTIVE_ATTRIBUTES);
- for(unsigned i=0; i<count; ++i)
- {
- char name[128];
- int len = 0;
- int size;
- GLenum type;
- glGetActiveAttrib(id, i, sizeof(name), &len, &size, &type, name);
- if(len && !strncmp(name, "gl_", 3))
- legacy_vars = true;
- }
-
if(ARB_uniform_buffer_object)
- {
- uniform_blocks.clear();
-
- std::set<unsigned> used_bind_points;
- count = get_program_i(id, GL_ACTIVE_UNIFORM_BLOCKS);
- for(unsigned i=0; i<count; ++i)
- {
- char name[128];
- int len;
- glGetActiveUniformBlockName(id, i, sizeof(name), &len, name);
- UniformBlockInfo &info = uniform_blocks[name];
- info.name = name;
-
- int value;
- glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_DATA_SIZE, &value);
- info.data_size = value;
-
- glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, &value);
- vector<int> indices(value);
- glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES, &indices[0]);
- for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
- {
- if(!uniforms_by_index[*j])
- throw logic_error("Program::link");
- info.uniforms.push_back(uniforms_by_index[*j]);
- uniforms_by_index[*j]->block = &info;
- }
-
- vector<unsigned> indices2(indices.begin(), indices.end());
- vector<int> values(indices.size());
- glGetActiveUniformsiv(id, indices.size(), &indices2[0], GL_UNIFORM_OFFSET, &values[0]);
- for(unsigned j=0; j<indices.size(); ++j)
- uniforms_by_index[indices[j]]->location = values[j];
-
- indices2.clear();
- for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
- if(uniforms_by_index[*j]->size>1)
- indices2.push_back(*j);
- if(!indices2.empty())
- {
- glGetActiveUniformsiv(id, indices2.size(), &indices2[0], GL_UNIFORM_ARRAY_STRIDE, &values[0]);
- for(unsigned j=0; j<indices2.size(); ++j)
- uniforms_by_index[indices2[j]]->array_stride = values[j];
- }
-
- indices2.clear();
- for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
- {
- GLenum t = uniforms_by_index[*j]->type;
- if(t==GL_FLOAT_MAT4 || t==GL_FLOAT_MAT3 || t==GL_FLOAT_MAT2 ||
- t==GL_FLOAT_MAT2x3 || t==GL_FLOAT_MAT2x4 || t==GL_FLOAT_MAT3x2 ||
- t==GL_FLOAT_MAT3x4 || t==GL_FLOAT_MAT4x2 || t==GL_FLOAT_MAT4x3)
- indices2.push_back(*j);
- }
- if(!indices2.empty())
- {
- glGetActiveUniformsiv(id, indices2.size(), &indices2[0], GL_UNIFORM_MATRIX_STRIDE, &values[0]);
- for(unsigned j=0; j<indices2.size(); ++j)
- uniforms_by_index[indices2[j]]->matrix_stride = values[j];
- }
-
- sort(info.uniforms.begin(), info.uniforms.end(), uniform_location_compare);
- info.layout_hash = compute_layout_hash(info.uniforms);
- unsigned n_bindings = BufferRange::get_n_uniform_buffer_bindings();
- info.bind_point = info.layout_hash%n_bindings;
- while(used_bind_points.count(info.bind_point))
- info.bind_point = (info.bind_point+1)%n_bindings;
- glUniformBlockBinding(id, i, info.bind_point);
- used_bind_points.insert(info.bind_point);
- }
- }
+ query_uniform_blocks(uniforms_by_index);
UniformBlockInfo &default_block = uniform_blocks[string()];
default_block.data_size = 0;
uniform_layout_hash = hash32(layout_descriptor);
}
+void Program::query_uniform_blocks(const vector<UniformInfo *> &uniforms_by_index)
+{
+ uniform_blocks.clear();
+
+ std::set<unsigned> used_bind_points;
+ unsigned count = get_program_i(id, GL_ACTIVE_UNIFORM_BLOCKS);
+ for(unsigned i=0; i<count; ++i)
+ {
+ char name[128];
+ int len;
+ glGetActiveUniformBlockName(id, i, sizeof(name), &len, name);
+ UniformBlockInfo &info = uniform_blocks[name];
+ info.name = name;
+
+ int value;
+ glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_DATA_SIZE, &value);
+ info.data_size = value;
+
+ glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, &value);
+ vector<int> indices(value);
+ glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES, &indices[0]);
+ for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
+ {
+ if(!uniforms_by_index[*j])
+ throw logic_error("Program::link");
+ info.uniforms.push_back(uniforms_by_index[*j]);
+ uniforms_by_index[*j]->block = &info;
+ }
+
+ vector<unsigned> indices2(indices.begin(), indices.end());
+ vector<int> values(indices.size());
+ glGetActiveUniformsiv(id, indices.size(), &indices2[0], GL_UNIFORM_OFFSET, &values[0]);
+ for(unsigned j=0; j<indices.size(); ++j)
+ uniforms_by_index[indices[j]]->location = values[j];
+
+ indices2.clear();
+ for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
+ if(uniforms_by_index[*j]->size>1)
+ indices2.push_back(*j);
+ if(!indices2.empty())
+ {
+ glGetActiveUniformsiv(id, indices2.size(), &indices2[0], GL_UNIFORM_ARRAY_STRIDE, &values[0]);
+ for(unsigned j=0; j<indices2.size(); ++j)
+ uniforms_by_index[indices2[j]]->array_stride = values[j];
+ }
+
+ indices2.clear();
+ for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
+ {
+ GLenum t = uniforms_by_index[*j]->type;
+ if(t==GL_FLOAT_MAT4 || t==GL_FLOAT_MAT3 || t==GL_FLOAT_MAT2 ||
+ t==GL_FLOAT_MAT2x3 || t==GL_FLOAT_MAT2x4 || t==GL_FLOAT_MAT3x2 ||
+ t==GL_FLOAT_MAT3x4 || t==GL_FLOAT_MAT4x2 || t==GL_FLOAT_MAT4x3)
+ indices2.push_back(*j);
+ }
+ if(!indices2.empty())
+ {
+ glGetActiveUniformsiv(id, indices2.size(), &indices2[0], GL_UNIFORM_MATRIX_STRIDE, &values[0]);
+ for(unsigned j=0; j<indices2.size(); ++j)
+ uniforms_by_index[indices2[j]]->matrix_stride = values[j];
+ }
+
+ sort(info.uniforms.begin(), info.uniforms.end(), uniform_location_compare);
+ info.layout_hash = compute_layout_hash(info.uniforms);
+ unsigned n_bindings = BufferRange::get_n_uniform_buffer_bindings();
+ info.bind_point = info.layout_hash%n_bindings;
+ while(used_bind_points.count(info.bind_point))
+ info.bind_point = (info.bind_point+1)%n_bindings;
+ glUniformBlockBinding(id, i, info.bind_point);
+ used_bind_points.insert(info.bind_point);
+ }
+}
+
+void Program::query_attributes()
+{
+ unsigned count = get_program_i(id, GL_ACTIVE_ATTRIBUTES);
+ for(unsigned i=0; i<count; ++i)
+ {
+ char name[128];
+ int len = 0;
+ int size;
+ GLenum type;
+ glGetActiveAttrib(id, i, sizeof(name), &len, &size, &type, name);
+ if(len && strncmp(name, "gl_", 3))
+ {
+ if(len>3 && !strcmp(name+len-3, "[0]"))
+ name[len-3] = 0;
+
+ AttributeInfo &info = attributes[name];
+ info.name = name;
+ info.location = glGetAttribLocation(id, name);
+ info.size = size;
+ info.type = type;
+ }
+ else
+ legacy_vars = true;
+ }
+}
+
Program::LayoutHash Program::compute_layout_hash(const vector<const UniformInfo *> &uniforms)
{
string layout_descriptor;
return i->second.block->bind_point<0 ? i->second.location : -1;
}
+const Program::AttributeInfo &Program::get_attribute_info(const string &name) const
+{
+ return get_item(attributes, name);
+}
+
+int Program::get_attribute_location(const string &n) const
+{
+ if(n[n.size()-1]==']')
+ throw invalid_argument("Program::get_attribute_location");
+
+ AttributeMap::const_iterator i = attributes.find(n);
+ return i!=attributes.end() ? i->second.location : -1;
+}
+
void Program::bind() const
{
if(!linked)
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