| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "gpu/command_buffer/service/program_manager.h" |
| |
| #include <algorithm> |
| #include <set> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/command_line.h" |
| #include "base/logging.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/metrics/histogram.h" |
| #include "base/numerics/safe_math.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_util.h" |
| #include "base/time/time.h" |
| #include "gpu/command_buffer/common/gles2_cmd_format.h" |
| #include "gpu/command_buffer/common/gles2_cmd_utils.h" |
| #include "gpu/command_buffer/service/gles2_cmd_decoder.h" |
| #include "gpu/command_buffer/service/gpu_switches.h" |
| #include "gpu/command_buffer/service/program_cache.h" |
| #include "gpu/command_buffer/service/shader_manager.h" |
| #include "third_party/re2/re2/re2.h" |
| |
| using base::TimeDelta; |
| using base::TimeTicks; |
| |
| namespace gpu { |
| namespace gles2 { |
| |
| namespace { |
| |
| int ShaderTypeToIndex(GLenum shader_type) { |
| switch (shader_type) { |
| case GL_VERTEX_SHADER: |
| return 0; |
| case GL_FRAGMENT_SHADER: |
| return 1; |
| default: |
| NOTREACHED(); |
| return 0; |
| } |
| } |
| |
| // Given a name like "foo.bar[123].moo[456]" sets new_name to "foo.bar[123].moo" |
| // and sets element_index to 456. returns false if element expression was not a |
| // whole decimal number. For example: "foo[1b2]" |
| bool GetUniformNameSansElement( |
| const std::string& name, int* element_index, std::string* new_name) { |
| DCHECK(element_index); |
| DCHECK(new_name); |
| if (name.size() < 3 || name[name.size() - 1] != ']') { |
| *element_index = 0; |
| *new_name = name; |
| return true; |
| } |
| |
| // Look for an array specification. |
| size_t open_pos = name.find_last_of('['); |
| if (open_pos == std::string::npos || |
| open_pos >= name.size() - 2) { |
| return false; |
| } |
| |
| base::CheckedNumeric<GLint> index = 0; |
| size_t last = name.size() - 1; |
| for (size_t pos = open_pos + 1; pos < last; ++pos) { |
| int8 digit = name[pos] - '0'; |
| if (digit < 0 || digit > 9) { |
| return false; |
| } |
| index = index * 10 + digit; |
| } |
| if (!index.IsValid()) { |
| return false; |
| } |
| |
| *element_index = index.ValueOrDie(); |
| *new_name = name.substr(0, open_pos); |
| return true; |
| } |
| |
| bool IsBuiltInFragmentVarying(const std::string& name) { |
| // Built-in variables for fragment shaders. |
| const char* kBuiltInVaryings[] = { |
| "gl_FragCoord", |
| "gl_FrontFacing", |
| "gl_PointCoord" |
| }; |
| for (size_t ii = 0; ii < arraysize(kBuiltInVaryings); ++ii) { |
| if (name == kBuiltInVaryings[ii]) |
| return true; |
| } |
| return false; |
| } |
| |
| bool IsBuiltInInvariant( |
| const VaryingMap& varyings, const std::string& name) { |
| VaryingMap::const_iterator hit = varyings.find(name); |
| if (hit == varyings.end()) |
| return false; |
| return hit->second.isInvariant; |
| } |
| |
| uint32 ComputeOffset(const void* start, const void* position) { |
| return static_cast<const uint8*>(position) - |
| static_cast<const uint8*>(start); |
| } |
| |
| } // anonymous namespace. |
| |
| Program::UniformInfo::UniformInfo() |
| : size(0), |
| type(GL_NONE), |
| fake_location_base(0), |
| is_array(false) { |
| } |
| |
| Program::UniformInfo::UniformInfo(GLsizei _size, |
| GLenum _type, |
| int _fake_location_base, |
| const std::string& _name) |
| : size(_size), |
| type(_type), |
| accepts_api_type(0), |
| fake_location_base(_fake_location_base), |
| is_array(false), |
| name(_name) { |
| switch (type) { |
| case GL_INT: |
| accepts_api_type = kUniform1i; |
| break; |
| case GL_INT_VEC2: |
| accepts_api_type = kUniform2i; |
| break; |
| case GL_INT_VEC3: |
| accepts_api_type = kUniform3i; |
| break; |
| case GL_INT_VEC4: |
| accepts_api_type = kUniform4i; |
| break; |
| |
| case GL_BOOL: |
| accepts_api_type = kUniform1i | kUniform1f; |
| break; |
| case GL_BOOL_VEC2: |
| accepts_api_type = kUniform2i | kUniform2f; |
| break; |
| case GL_BOOL_VEC3: |
| accepts_api_type = kUniform3i | kUniform3f; |
| break; |
| case GL_BOOL_VEC4: |
| accepts_api_type = kUniform4i | kUniform4f; |
| break; |
| |
| case GL_FLOAT: |
| accepts_api_type = kUniform1f; |
| break; |
| case GL_FLOAT_VEC2: |
| accepts_api_type = kUniform2f; |
| break; |
| case GL_FLOAT_VEC3: |
| accepts_api_type = kUniform3f; |
| break; |
| case GL_FLOAT_VEC4: |
| accepts_api_type = kUniform4f; |
| break; |
| |
| case GL_FLOAT_MAT2: |
| accepts_api_type = kUniformMatrix2f; |
| break; |
| case GL_FLOAT_MAT3: |
| accepts_api_type = kUniformMatrix3f; |
| break; |
| case GL_FLOAT_MAT4: |
| accepts_api_type = kUniformMatrix4f; |
| break; |
| |
| case GL_SAMPLER_2D: |
| case GL_SAMPLER_2D_RECT_ARB: |
| case GL_SAMPLER_CUBE: |
| case GL_SAMPLER_3D_OES: |
| case GL_SAMPLER_EXTERNAL_OES: |
| accepts_api_type = kUniform1i; |
| break; |
| default: |
| NOTREACHED() << "Unhandled UniformInfo type " << type; |
| break; |
| } |
| } |
| |
| Program::UniformInfo::~UniformInfo() {} |
| |
| bool ProgramManager::IsInvalidPrefix(const char* name, size_t length) { |
| static const char kInvalidPrefix[] = { 'g', 'l', '_' }; |
| return (length >= sizeof(kInvalidPrefix) && |
| memcmp(name, kInvalidPrefix, sizeof(kInvalidPrefix)) == 0); |
| } |
| |
| Program::Program(ProgramManager* manager, GLuint service_id) |
| : manager_(manager), |
| use_count_(0), |
| max_attrib_name_length_(0), |
| max_uniform_name_length_(0), |
| service_id_(service_id), |
| deleted_(false), |
| valid_(false), |
| link_status_(false), |
| uniforms_cleared_(false), |
| num_uniforms_(0), |
| transform_feedback_buffer_mode_(GL_NONE) { |
| manager_->StartTracking(this); |
| } |
| |
| void Program::Reset() { |
| valid_ = false; |
| link_status_ = false; |
| num_uniforms_ = 0; |
| max_uniform_name_length_ = 0; |
| max_attrib_name_length_ = 0; |
| attrib_infos_.clear(); |
| uniform_infos_.clear(); |
| sampler_indices_.clear(); |
| attrib_location_to_index_map_.clear(); |
| } |
| |
| std::string Program::ProcessLogInfo( |
| const std::string& log) { |
| std::string output; |
| re2::StringPiece input(log); |
| std::string prior_log; |
| std::string hashed_name; |
| while (RE2::Consume(&input, |
| "(.*?)(webgl_[0123456789abcdefABCDEF]+)", |
| &prior_log, |
| &hashed_name)) { |
| output += prior_log; |
| |
| const std::string* original_name = |
| GetOriginalNameFromHashedName(hashed_name); |
| if (original_name) |
| output += *original_name; |
| else |
| output += hashed_name; |
| } |
| |
| return output + input.as_string(); |
| } |
| |
| void Program::UpdateLogInfo() { |
| GLint max_len = 0; |
| glGetProgramiv(service_id_, GL_INFO_LOG_LENGTH, &max_len); |
| if (max_len == 0) { |
| set_log_info(NULL); |
| return; |
| } |
| scoped_ptr<char[]> temp(new char[max_len]); |
| GLint len = 0; |
| glGetProgramInfoLog(service_id_, max_len, &len, temp.get()); |
| DCHECK(max_len == 0 || len < max_len); |
| DCHECK(len == 0 || temp[len] == '\0'); |
| std::string log(temp.get(), len); |
| set_log_info(ProcessLogInfo(log).c_str()); |
| } |
| |
| void Program::ClearUniforms( |
| std::vector<uint8>* zero_buffer) { |
| DCHECK(zero_buffer); |
| if (uniforms_cleared_) { |
| return; |
| } |
| uniforms_cleared_ = true; |
| for (size_t ii = 0; ii < uniform_infos_.size(); ++ii) { |
| const UniformInfo& uniform_info = uniform_infos_[ii]; |
| if (!uniform_info.IsValid()) { |
| continue; |
| } |
| GLint location = uniform_info.element_locations[0]; |
| GLsizei size = uniform_info.size; |
| uint32 unit_size = GLES2Util::GetGLDataTypeSizeForUniforms( |
| uniform_info.type); |
| uint32 size_needed = size * unit_size; |
| if (size_needed > zero_buffer->size()) { |
| zero_buffer->resize(size_needed, 0u); |
| } |
| const void* zero = &(*zero_buffer)[0]; |
| switch (uniform_info.type) { |
| case GL_FLOAT: |
| glUniform1fv(location, size, reinterpret_cast<const GLfloat*>(zero)); |
| break; |
| case GL_FLOAT_VEC2: |
| glUniform2fv(location, size, reinterpret_cast<const GLfloat*>(zero)); |
| break; |
| case GL_FLOAT_VEC3: |
| glUniform3fv(location, size, reinterpret_cast<const GLfloat*>(zero)); |
| break; |
| case GL_FLOAT_VEC4: |
| glUniform4fv(location, size, reinterpret_cast<const GLfloat*>(zero)); |
| break; |
| case GL_INT: |
| case GL_BOOL: |
| case GL_SAMPLER_2D: |
| case GL_SAMPLER_CUBE: |
| case GL_SAMPLER_EXTERNAL_OES: |
| case GL_SAMPLER_3D_OES: |
| case GL_SAMPLER_2D_RECT_ARB: |
| glUniform1iv(location, size, reinterpret_cast<const GLint*>(zero)); |
| break; |
| case GL_INT_VEC2: |
| case GL_BOOL_VEC2: |
| glUniform2iv(location, size, reinterpret_cast<const GLint*>(zero)); |
| break; |
| case GL_INT_VEC3: |
| case GL_BOOL_VEC3: |
| glUniform3iv(location, size, reinterpret_cast<const GLint*>(zero)); |
| break; |
| case GL_INT_VEC4: |
| case GL_BOOL_VEC4: |
| glUniform4iv(location, size, reinterpret_cast<const GLint*>(zero)); |
| break; |
| case GL_FLOAT_MAT2: |
| glUniformMatrix2fv( |
| location, size, false, reinterpret_cast<const GLfloat*>(zero)); |
| break; |
| case GL_FLOAT_MAT3: |
| glUniformMatrix3fv( |
| location, size, false, reinterpret_cast<const GLfloat*>(zero)); |
| break; |
| case GL_FLOAT_MAT4: |
| glUniformMatrix4fv( |
| location, size, false, reinterpret_cast<const GLfloat*>(zero)); |
| break; |
| default: |
| NOTREACHED(); |
| break; |
| } |
| } |
| } |
| |
| namespace { |
| |
| struct UniformData { |
| UniformData() : size(-1), type(GL_NONE), location(0), added(false) { |
| } |
| std::string queried_name; |
| std::string corrected_name; |
| std::string original_name; |
| GLsizei size; |
| GLenum type; |
| GLint location; |
| bool added; |
| }; |
| |
| struct UniformDataComparer { |
| bool operator()(const UniformData& lhs, const UniformData& rhs) const { |
| return lhs.queried_name < rhs.queried_name; |
| } |
| }; |
| |
| } // anonymous namespace |
| |
| void Program::Update() { |
| Reset(); |
| UpdateLogInfo(); |
| link_status_ = true; |
| uniforms_cleared_ = false; |
| GLint num_attribs = 0; |
| GLint max_len = 0; |
| GLint max_location = -1; |
| glGetProgramiv(service_id_, GL_ACTIVE_ATTRIBUTES, &num_attribs); |
| glGetProgramiv(service_id_, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max_len); |
| // TODO(gman): Should we check for error? |
| scoped_ptr<char[]> name_buffer(new char[max_len]); |
| for (GLint ii = 0; ii < num_attribs; ++ii) { |
| GLsizei length = 0; |
| GLsizei size = 0; |
| GLenum type = 0; |
| glGetActiveAttrib( |
| service_id_, ii, max_len, &length, &size, &type, name_buffer.get()); |
| DCHECK(max_len == 0 || length < max_len); |
| DCHECK(length == 0 || name_buffer[length] == '\0'); |
| if (!ProgramManager::IsInvalidPrefix(name_buffer.get(), length)) { |
| std::string original_name; |
| GetVertexAttribData(name_buffer.get(), &original_name, &type); |
| // TODO(gman): Should we check for error? |
| GLint location = glGetAttribLocation(service_id_, name_buffer.get()); |
| if (location > max_location) { |
| max_location = location; |
| } |
| attrib_infos_.push_back( |
| VertexAttrib(1, type, original_name, location)); |
| max_attrib_name_length_ = std::max( |
| max_attrib_name_length_, static_cast<GLsizei>(original_name.size())); |
| } |
| } |
| |
| // Create attrib location to index map. |
| attrib_location_to_index_map_.resize(max_location + 1); |
| for (GLint ii = 0; ii <= max_location; ++ii) { |
| attrib_location_to_index_map_[ii] = -1; |
| } |
| for (size_t ii = 0; ii < attrib_infos_.size(); ++ii) { |
| const VertexAttrib& info = attrib_infos_[ii]; |
| attrib_location_to_index_map_[info.location] = ii; |
| } |
| |
| #if !defined(NDEBUG) |
| if (base::CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kEnableGPUServiceLoggingGPU)) { |
| DVLOG(1) << "----: attribs for service_id: " << service_id(); |
| for (size_t ii = 0; ii < attrib_infos_.size(); ++ii) { |
| const VertexAttrib& info = attrib_infos_[ii]; |
| DVLOG(1) << ii << ": loc = " << info.location |
| << ", size = " << info.size |
| << ", type = " << GLES2Util::GetStringEnum(info.type) |
| << ", name = " << info.name; |
| } |
| } |
| #endif |
| |
| max_len = 0; |
| GLint num_uniforms = 0; |
| glGetProgramiv(service_id_, GL_ACTIVE_UNIFORMS, &num_uniforms); |
| glGetProgramiv(service_id_, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max_len); |
| name_buffer.reset(new char[max_len]); |
| |
| // Reads all the names. |
| std::vector<UniformData> uniform_data; |
| for (GLint ii = 0; ii < num_uniforms; ++ii) { |
| GLsizei length = 0; |
| UniformData data; |
| glGetActiveUniform( |
| service_id_, ii, max_len, &length, |
| &data.size, &data.type, name_buffer.get()); |
| DCHECK(max_len == 0 || length < max_len); |
| DCHECK(length == 0 || name_buffer[length] == '\0'); |
| if (!ProgramManager::IsInvalidPrefix(name_buffer.get(), length)) { |
| data.queried_name = std::string(name_buffer.get()); |
| GetCorrectedUniformData( |
| data.queried_name, |
| &data.corrected_name, &data.original_name, &data.size, &data.type); |
| uniform_data.push_back(data); |
| } |
| } |
| |
| // NOTE: We don't care if 2 uniforms are bound to the same location. |
| // One of them will take preference. The spec allows this, same as |
| // BindAttribLocation. |
| // |
| // The reason we don't check is if we were to fail we'd have to |
| // restore the previous program but since we've already linked successfully |
| // at this point the previous program is gone. |
| |
| // Assigns the uniforms with bindings. |
| size_t next_available_index = 0; |
| for (size_t ii = 0; ii < uniform_data.size(); ++ii) { |
| UniformData& data = uniform_data[ii]; |
| data.location = glGetUniformLocation( |
| service_id_, data.queried_name.c_str()); |
| // remove "[0]" |
| std::string short_name; |
| int element_index = 0; |
| bool good = GetUniformNameSansElement(data.queried_name, &element_index, |
| &short_name); |
| DCHECK(good); |
| LocationMap::const_iterator it = bind_uniform_location_map_.find( |
| short_name); |
| if (it != bind_uniform_location_map_.end()) { |
| data.added = AddUniformInfo( |
| data.size, data.type, data.location, it->second, data.corrected_name, |
| data.original_name, &next_available_index); |
| } |
| } |
| |
| // Assigns the uniforms that were not bound. |
| for (size_t ii = 0; ii < uniform_data.size(); ++ii) { |
| const UniformData& data = uniform_data[ii]; |
| if (!data.added) { |
| AddUniformInfo( |
| data.size, data.type, data.location, -1, data.corrected_name, |
| data.original_name, &next_available_index); |
| } |
| } |
| |
| #if !defined(NDEBUG) |
| if (base::CommandLine::ForCurrentProcess()->HasSwitch( |
| switches::kEnableGPUServiceLoggingGPU)) { |
| DVLOG(1) << "----: uniforms for service_id: " << service_id(); |
| for (size_t ii = 0; ii < uniform_infos_.size(); ++ii) { |
| const UniformInfo& info = uniform_infos_[ii]; |
| if (info.IsValid()) { |
| DVLOG(1) << ii << ": loc = " << info.element_locations[0] |
| << ", size = " << info.size |
| << ", type = " << GLES2Util::GetStringEnum(info.type) |
| << ", name = " << info.name; |
| } |
| } |
| } |
| #endif |
| |
| valid_ = true; |
| } |
| |
| void Program::ExecuteBindAttribLocationCalls() { |
| for (LocationMap::const_iterator it = bind_attrib_location_map_.begin(); |
| it != bind_attrib_location_map_.end(); ++it) { |
| const std::string* mapped_name = GetAttribMappedName(it->first); |
| if (mapped_name) |
| glBindAttribLocation(service_id_, it->second, mapped_name->c_str()); |
| } |
| } |
| |
| bool Program::Link(ShaderManager* manager, |
| Program::VaryingsPackingOption varyings_packing_option, |
| const ShaderCacheCallback& shader_callback) { |
| ClearLinkStatus(); |
| |
| if (!AttachedShadersExist()) { |
| set_log_info("missing shaders"); |
| return false; |
| } |
| |
| TimeTicks before_time = TimeTicks::Now(); |
| bool link = true; |
| ProgramCache* cache = manager_->program_cache_; |
| if (cache) { |
| DCHECK(!attached_shaders_[0]->last_compiled_source().empty() && |
| !attached_shaders_[1]->last_compiled_source().empty()); |
| ProgramCache::LinkedProgramStatus status = cache->GetLinkedProgramStatus( |
| attached_shaders_[0]->last_compiled_signature(), |
| attached_shaders_[1]->last_compiled_signature(), |
| &bind_attrib_location_map_, |
| transform_feedback_varyings_, |
| transform_feedback_buffer_mode_); |
| |
| if (status == ProgramCache::LINK_SUCCEEDED) { |
| ProgramCache::ProgramLoadResult success = |
| cache->LoadLinkedProgram(service_id(), |
| attached_shaders_[0].get(), |
| attached_shaders_[1].get(), |
| &bind_attrib_location_map_, |
| transform_feedback_varyings_, |
| transform_feedback_buffer_mode_, |
| shader_callback); |
| link = success != ProgramCache::PROGRAM_LOAD_SUCCESS; |
| UMA_HISTOGRAM_BOOLEAN("GPU.ProgramCache.LoadBinarySuccess", !link); |
| } |
| } |
| |
| if (link) { |
| CompileAttachedShaders(); |
| |
| if (!CanLink()) { |
| set_log_info("invalid shaders"); |
| return false; |
| } |
| if (DetectAttribLocationBindingConflicts()) { |
| set_log_info("glBindAttribLocation() conflicts"); |
| return false; |
| } |
| std::string conflicting_name; |
| if (DetectUniformsMismatch(&conflicting_name)) { |
| std::string info_log = "Uniforms with the same name but different " |
| "type/precision: " + conflicting_name; |
| set_log_info(ProcessLogInfo(info_log).c_str()); |
| return false; |
| } |
| if (DetectVaryingsMismatch(&conflicting_name)) { |
| std::string info_log = "Varyings with the same name but different type, " |
| "or statically used varyings in fragment shader " |
| "are not declared in vertex shader: " + |
| conflicting_name; |
| set_log_info(ProcessLogInfo(info_log).c_str()); |
| return false; |
| } |
| if (DetectBuiltInInvariantConflicts()) { |
| set_log_info("Invariant settings for certain built-in varyings " |
| "have to match"); |
| return false; |
| } |
| if (DetectGlobalNameConflicts(&conflicting_name)) { |
| std::string info_log = "Name conflicts between an uniform and an " |
| "attribute: " + conflicting_name; |
| set_log_info(ProcessLogInfo(info_log).c_str()); |
| return false; |
| } |
| if (!CheckVaryingsPacking(varyings_packing_option)) { |
| set_log_info("Varyings over maximum register limit"); |
| return false; |
| } |
| |
| ExecuteBindAttribLocationCalls(); |
| before_time = TimeTicks::Now(); |
| if (cache && gfx::g_driver_gl.ext.b_GL_ARB_get_program_binary) { |
| glProgramParameteri(service_id(), |
| PROGRAM_BINARY_RETRIEVABLE_HINT, |
| GL_TRUE); |
| } |
| glLinkProgram(service_id()); |
| } |
| |
| GLint success = 0; |
| glGetProgramiv(service_id(), GL_LINK_STATUS, &success); |
| if (success == GL_TRUE) { |
| Update(); |
| if (link) { |
| if (cache) { |
| cache->SaveLinkedProgram(service_id(), |
| attached_shaders_[0].get(), |
| attached_shaders_[1].get(), |
| &bind_attrib_location_map_, |
| transform_feedback_varyings_, |
| transform_feedback_buffer_mode_, |
| shader_callback); |
| } |
| UMA_HISTOGRAM_CUSTOM_COUNTS( |
| "GPU.ProgramCache.BinaryCacheMissTime", |
| static_cast<base::HistogramBase::Sample>( |
| (TimeTicks::Now() - before_time).InMicroseconds()), |
| 0, |
| static_cast<base::HistogramBase::Sample>( |
| TimeDelta::FromSeconds(10).InMicroseconds()), |
| 50); |
| } else { |
| UMA_HISTOGRAM_CUSTOM_COUNTS( |
| "GPU.ProgramCache.BinaryCacheHitTime", |
| static_cast<base::HistogramBase::Sample>( |
| (TimeTicks::Now() - before_time).InMicroseconds()), |
| 0, |
| static_cast<base::HistogramBase::Sample>( |
| TimeDelta::FromSeconds(1).InMicroseconds()), |
| 50); |
| } |
| } else { |
| UpdateLogInfo(); |
| } |
| return success == GL_TRUE; |
| } |
| |
| void Program::Validate() { |
| if (!IsValid()) { |
| set_log_info("program not linked"); |
| return; |
| } |
| glValidateProgram(service_id()); |
| UpdateLogInfo(); |
| } |
| |
| GLint Program::GetUniformFakeLocation( |
| const std::string& name) const { |
| bool getting_array_location = false; |
| size_t open_pos = std::string::npos; |
| int index = 0; |
| if (!GLES2Util::ParseUniformName( |
| name, &open_pos, &index, &getting_array_location)) { |
| return -1; |
| } |
| for (GLuint ii = 0; ii < uniform_infos_.size(); ++ii) { |
| const UniformInfo& info = uniform_infos_[ii]; |
| if (!info.IsValid()) { |
| continue; |
| } |
| if (info.name == name || |
| (info.is_array && |
| info.name.compare(0, info.name.size() - 3, name) == 0)) { |
| return info.fake_location_base; |
| } else if (getting_array_location && info.is_array) { |
| // Look for an array specification. |
| size_t open_pos_2 = info.name.find_last_of('['); |
| if (open_pos_2 == open_pos && |
| name.compare(0, open_pos, info.name, 0, open_pos) == 0) { |
| if (index >= 0 && index < info.size) { |
| DCHECK_GT(static_cast<int>(info.element_locations.size()), index); |
| if (info.element_locations[index] == -1) |
| return -1; |
| return ProgramManager::MakeFakeLocation( |
| info.fake_location_base, index); |
| } |
| } |
| } |
| } |
| return -1; |
| } |
| |
| GLint Program::GetAttribLocation( |
| const std::string& original_name) const { |
| for (GLuint ii = 0; ii < attrib_infos_.size(); ++ii) { |
| const VertexAttrib& info = attrib_infos_[ii]; |
| if (info.name == original_name) { |
| return info.location; |
| } |
| } |
| return -1; |
| } |
| |
| const Program::UniformInfo* |
| Program::GetUniformInfoByFakeLocation( |
| GLint fake_location, GLint* real_location, GLint* array_index) const { |
| DCHECK(real_location); |
| DCHECK(array_index); |
| if (fake_location < 0) { |
| return NULL; |
| } |
| |
| GLint uniform_index = GetUniformInfoIndexFromFakeLocation(fake_location); |
| if (uniform_index >= 0 && |
| static_cast<size_t>(uniform_index) < uniform_infos_.size()) { |
| const UniformInfo& uniform_info = uniform_infos_[uniform_index]; |
| if (!uniform_info.IsValid()) { |
| return NULL; |
| } |
| GLint element_index = GetArrayElementIndexFromFakeLocation(fake_location); |
| if (element_index < uniform_info.size) { |
| *real_location = uniform_info.element_locations[element_index]; |
| *array_index = element_index; |
| return &uniform_info; |
| } |
| } |
| return NULL; |
| } |
| |
| const std::string* Program::GetAttribMappedName( |
| const std::string& original_name) const { |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| Shader* shader = attached_shaders_[ii].get(); |
| if (shader) { |
| const std::string* mapped_name = |
| shader->GetAttribMappedName(original_name); |
| if (mapped_name) |
| return mapped_name; |
| } |
| } |
| return NULL; |
| } |
| |
| const std::string* Program::GetOriginalNameFromHashedName( |
| const std::string& hashed_name) const { |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| Shader* shader = attached_shaders_[ii].get(); |
| if (shader) { |
| const std::string* original_name = |
| shader->GetOriginalNameFromHashedName(hashed_name); |
| if (original_name) |
| return original_name; |
| } |
| } |
| return NULL; |
| } |
| |
| bool Program::SetUniformLocationBinding( |
| const std::string& name, GLint location) { |
| std::string short_name; |
| int element_index = 0; |
| if (!GetUniformNameSansElement(name, &element_index, &short_name) || |
| element_index != 0) { |
| return false; |
| } |
| |
| bind_uniform_location_map_[short_name] = location; |
| return true; |
| } |
| |
| // Note: This is only valid to call right after a program has been linked |
| // successfully. |
| void Program::GetCorrectedUniformData( |
| const std::string& name, |
| std::string* corrected_name, std::string* original_name, |
| GLsizei* size, GLenum* type) const { |
| DCHECK(corrected_name && original_name && size && type); |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| Shader* shader = attached_shaders_[ii].get(); |
| if (!shader) |
| continue; |
| const sh::ShaderVariable* info = NULL; |
| const sh::Uniform* uniform = shader->GetUniformInfo(name); |
| bool found = false; |
| if (uniform) |
| found = uniform->findInfoByMappedName(name, &info, original_name); |
| if (found) { |
| const std::string kArraySpec("[0]"); |
| if (info->arraySize > 0 && !EndsWith(name, kArraySpec, true)) { |
| *corrected_name = name + kArraySpec; |
| *original_name += kArraySpec; |
| } else { |
| *corrected_name = name; |
| } |
| *type = info->type; |
| *size = std::max(1u, info->arraySize); |
| return; |
| } |
| } |
| // TODO(zmo): this path should never be reached unless there is a serious |
| // bug in the driver or in ANGLE translator. |
| *corrected_name = name; |
| *original_name = name; |
| } |
| |
| void Program::GetVertexAttribData( |
| const std::string& name, std::string* original_name, GLenum* type) const { |
| DCHECK(original_name); |
| DCHECK(type); |
| Shader* shader = attached_shaders_[ShaderTypeToIndex(GL_VERTEX_SHADER)].get(); |
| if (shader) { |
| // Vertex attributes can not be arrays or structs (GLSL ES 3.00.4, section |
| // 4.3.4, "Input Variables"), so the top level sh::Attribute returns the |
| // information we need. |
| const sh::Attribute* info = shader->GetAttribInfo(name); |
| if (info) { |
| *original_name = info->name; |
| *type = info->type; |
| return; |
| } |
| } |
| // TODO(zmo): this path should never be reached unless there is a serious |
| // bug in the driver or in ANGLE translator. |
| *original_name = name; |
| } |
| |
| bool Program::AddUniformInfo( |
| GLsizei size, GLenum type, GLint location, GLint fake_base_location, |
| const std::string& name, const std::string& original_name, |
| size_t* next_available_index) { |
| DCHECK(next_available_index); |
| const char* kArraySpec = "[0]"; |
| size_t uniform_index = |
| fake_base_location >= 0 ? fake_base_location : *next_available_index; |
| if (uniform_infos_.size() < uniform_index + 1) { |
| uniform_infos_.resize(uniform_index + 1); |
| } |
| |
| // return if this location is already in use. |
| if (uniform_infos_[uniform_index].IsValid()) { |
| DCHECK_GE(fake_base_location, 0); |
| return false; |
| } |
| |
| uniform_infos_[uniform_index] = UniformInfo( |
| size, type, uniform_index, original_name); |
| ++num_uniforms_; |
| |
| UniformInfo& info = uniform_infos_[uniform_index]; |
| info.element_locations.resize(size); |
| info.element_locations[0] = location; |
| DCHECK_GE(size, 0); |
| size_t num_texture_units = info.IsSampler() ? static_cast<size_t>(size) : 0u; |
| info.texture_units.clear(); |
| info.texture_units.resize(num_texture_units, 0); |
| |
| if (size > 1) { |
| // Go through the array element locations looking for a match. |
| // We can skip the first element because it's the same as the |
| // the location without the array operators. |
| size_t array_pos = name.rfind(kArraySpec); |
| std::string base_name = name; |
| if (name.size() > 3) { |
| if (array_pos != name.size() - 3) { |
| info.name = name + kArraySpec; |
| } else { |
| base_name = name.substr(0, name.size() - 3); |
| } |
| } |
| for (GLsizei ii = 1; ii < info.size; ++ii) { |
| std::string element_name(base_name + "[" + base::IntToString(ii) + "]"); |
| info.element_locations[ii] = |
| glGetUniformLocation(service_id_, element_name.c_str()); |
| } |
| } |
| |
| info.is_array = |
| (size > 1 || |
| (info.name.size() > 3 && |
| info.name.rfind(kArraySpec) == info.name.size() - 3)); |
| |
| if (info.IsSampler()) { |
| sampler_indices_.push_back(info.fake_location_base); |
| } |
| max_uniform_name_length_ = |
| std::max(max_uniform_name_length_, |
| static_cast<GLsizei>(info.name.size())); |
| |
| while (*next_available_index < uniform_infos_.size() && |
| uniform_infos_[*next_available_index].IsValid()) { |
| *next_available_index = *next_available_index + 1; |
| } |
| |
| return true; |
| } |
| |
| const Program::UniformInfo* |
| Program::GetUniformInfo( |
| GLint index) const { |
| if (static_cast<size_t>(index) >= uniform_infos_.size()) { |
| return NULL; |
| } |
| |
| const UniformInfo& info = uniform_infos_[index]; |
| return info.IsValid() ? &info : NULL; |
| } |
| |
| bool Program::SetSamplers( |
| GLint num_texture_units, GLint fake_location, |
| GLsizei count, const GLint* value) { |
| if (fake_location < 0) { |
| return true; |
| } |
| GLint uniform_index = GetUniformInfoIndexFromFakeLocation(fake_location); |
| if (uniform_index >= 0 && |
| static_cast<size_t>(uniform_index) < uniform_infos_.size()) { |
| UniformInfo& info = uniform_infos_[uniform_index]; |
| if (!info.IsValid()) { |
| return false; |
| } |
| GLint element_index = GetArrayElementIndexFromFakeLocation(fake_location); |
| if (element_index < info.size) { |
| count = std::min(info.size - element_index, count); |
| if (info.IsSampler() && count > 0) { |
| for (GLsizei ii = 0; ii < count; ++ii) { |
| if (value[ii] < 0 || value[ii] >= num_texture_units) { |
| return false; |
| } |
| } |
| std::copy(value, value + count, |
| info.texture_units.begin() + element_index); |
| return true; |
| } |
| } |
| } |
| return true; |
| } |
| |
| void Program::GetProgramiv(GLenum pname, GLint* params) { |
| switch (pname) { |
| case GL_ACTIVE_ATTRIBUTES: |
| *params = attrib_infos_.size(); |
| break; |
| case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH: |
| // Notice +1 to accomodate NULL terminator. |
| *params = max_attrib_name_length_ + 1; |
| break; |
| case GL_ACTIVE_UNIFORMS: |
| *params = num_uniforms_; |
| break; |
| case GL_ACTIVE_UNIFORM_MAX_LENGTH: |
| // Notice +1 to accomodate NULL terminator. |
| *params = max_uniform_name_length_ + 1; |
| break; |
| case GL_LINK_STATUS: |
| *params = link_status_; |
| break; |
| case GL_INFO_LOG_LENGTH: |
| // Notice +1 to accomodate NULL terminator. |
| *params = log_info_.get() ? (log_info_->size() + 1) : 0; |
| break; |
| case GL_DELETE_STATUS: |
| *params = deleted_; |
| break; |
| case GL_VALIDATE_STATUS: |
| if (!IsValid()) { |
| *params = GL_FALSE; |
| } else { |
| glGetProgramiv(service_id_, pname, params); |
| } |
| break; |
| default: |
| glGetProgramiv(service_id_, pname, params); |
| break; |
| } |
| } |
| |
| bool Program::AttachShader( |
| ShaderManager* shader_manager, |
| Shader* shader) { |
| DCHECK(shader_manager); |
| DCHECK(shader); |
| int index = ShaderTypeToIndex(shader->shader_type()); |
| if (attached_shaders_[index].get() != NULL) { |
| return false; |
| } |
| attached_shaders_[index] = scoped_refptr<Shader>(shader); |
| shader_manager->UseShader(shader); |
| return true; |
| } |
| |
| bool Program::DetachShader( |
| ShaderManager* shader_manager, |
| Shader* shader) { |
| DCHECK(shader_manager); |
| DCHECK(shader); |
| if (attached_shaders_[ShaderTypeToIndex(shader->shader_type())].get() != |
| shader) { |
| return false; |
| } |
| attached_shaders_[ShaderTypeToIndex(shader->shader_type())] = NULL; |
| shader_manager->UnuseShader(shader); |
| return true; |
| } |
| |
| void Program::DetachShaders(ShaderManager* shader_manager) { |
| DCHECK(shader_manager); |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| if (attached_shaders_[ii].get()) { |
| DetachShader(shader_manager, attached_shaders_[ii].get()); |
| } |
| } |
| } |
| |
| void Program::CompileAttachedShaders() { |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| Shader* shader = attached_shaders_[ii].get(); |
| if (shader) { |
| shader->DoCompile(); |
| } |
| } |
| } |
| |
| bool Program::AttachedShadersExist() const { |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| if (!attached_shaders_[ii].get()) |
| return false; |
| } |
| return true; |
| } |
| |
| bool Program::CanLink() const { |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| if (!attached_shaders_[ii].get() || !attached_shaders_[ii]->valid()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool Program::DetectAttribLocationBindingConflicts() const { |
| std::set<GLint> location_binding_used; |
| for (LocationMap::const_iterator it = bind_attrib_location_map_.begin(); |
| it != bind_attrib_location_map_.end(); ++it) { |
| // Find out if an attribute is statically used in this program's shaders. |
| const sh::Attribute* attrib = NULL; |
| const std::string* mapped_name = GetAttribMappedName(it->first); |
| if (!mapped_name) |
| continue; |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| if (!attached_shaders_[ii].get() || !attached_shaders_[ii]->valid()) |
| continue; |
| attrib = attached_shaders_[ii]->GetAttribInfo(*mapped_name); |
| if (attrib) { |
| if (attrib->staticUse) |
| break; |
| else |
| attrib = NULL; |
| } |
| } |
| if (attrib) { |
| size_t num_of_locations = 1; |
| switch (attrib->type) { |
| case GL_FLOAT_MAT2: |
| num_of_locations = 2; |
| break; |
| case GL_FLOAT_MAT3: |
| num_of_locations = 3; |
| break; |
| case GL_FLOAT_MAT4: |
| num_of_locations = 4; |
| break; |
| default: |
| break; |
| } |
| for (size_t ii = 0; ii < num_of_locations; ++ii) { |
| GLint loc = it->second + ii; |
| std::pair<std::set<GLint>::iterator, bool> result = |
| location_binding_used.insert(loc); |
| if (!result.second) |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| bool Program::DetectUniformsMismatch(std::string* conflicting_name) const { |
| typedef std::map<std::string, const sh::Uniform*> UniformPointerMap; |
| UniformPointerMap uniform_pointer_map; |
| for (int ii = 0; ii < kMaxAttachedShaders; ++ii) { |
| const UniformMap& shader_uniforms = attached_shaders_[ii]->uniform_map(); |
| for (UniformMap::const_iterator iter = shader_uniforms.begin(); |
| iter != shader_uniforms.end(); ++iter) { |
| const std::string& name = iter->first; |
| UniformPointerMap::iterator hit = uniform_pointer_map.find(name); |
| if (hit == uniform_pointer_map.end()) { |
| uniform_pointer_map[name] = &(iter->second); |
| } else { |
| // If a uniform is in the map, i.e., it has already been declared by |
| // another shader, then the type, precision, etc. must match. |
| if (hit->second->isSameUniformAtLinkTime(iter->second)) |
| continue; |
| *conflicting_name = name; |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| bool Program::DetectVaryingsMismatch(std::string* conflicting_name) const { |
| DCHECK(attached_shaders_[0].get() && |
| attached_shaders_[0]->shader_type() == GL_VERTEX_SHADER && |
| attached_shaders_[1].get() && |
| attached_shaders_[1]->shader_type() == GL_FRAGMENT_SHADER); |
| const VaryingMap* vertex_varyings = &(attached_shaders_[0]->varying_map()); |
| const VaryingMap* fragment_varyings = &(attached_shaders_[1]->varying_map()); |
| |
| for (VaryingMap::const_iterator iter = fragment_varyings->begin(); |
| iter != fragment_varyings->end(); ++iter) { |
| const std::string& name = iter->first; |
| if (IsBuiltInFragmentVarying(name)) |
| continue; |
| |
| VaryingMap::const_iterator hit = vertex_varyings->find(name); |
| if (hit == vertex_varyings->end()) { |
| if (iter->second.staticUse) { |
| *conflicting_name = name; |
| return true; |
| } |
| continue; |
| } |
| |
| if (!hit->second.isSameVaryingAtLinkTime(iter->second)) { |
| *conflicting_name = name; |
| return true; |
| } |
| |
| } |
| return false; |
| } |
| |
| bool Program::DetectBuiltInInvariantConflicts() const { |
| DCHECK(attached_shaders_[0].get() && |
| attached_shaders_[0]->shader_type() == GL_VERTEX_SHADER && |
| attached_shaders_[1].get() && |
| attached_shaders_[1]->shader_type() == GL_FRAGMENT_SHADER); |
| const VaryingMap& vertex_varyings = attached_shaders_[0]->varying_map(); |
| const VaryingMap& fragment_varyings = attached_shaders_[1]->varying_map(); |
| |
| bool gl_position_invariant = IsBuiltInInvariant( |
| vertex_varyings, "gl_Position"); |
| bool gl_point_size_invariant = IsBuiltInInvariant( |
| vertex_varyings, "gl_PointSize"); |
| |
| bool gl_frag_coord_invariant = IsBuiltInInvariant( |
| fragment_varyings, "gl_FragCoord"); |
| bool gl_point_coord_invariant = IsBuiltInInvariant( |
| fragment_varyings, "gl_PointCoord"); |
| |
| return ((gl_frag_coord_invariant && !gl_position_invariant) || |
| (gl_point_coord_invariant && !gl_point_size_invariant)); |
| } |
| |
| bool Program::DetectGlobalNameConflicts(std::string* conflicting_name) const { |
| DCHECK(attached_shaders_[0].get() && |
| attached_shaders_[0]->shader_type() == GL_VERTEX_SHADER && |
| attached_shaders_[1].get() && |
| attached_shaders_[1]->shader_type() == GL_FRAGMENT_SHADER); |
| const UniformMap* uniforms[2]; |
| uniforms[0] = &(attached_shaders_[0]->uniform_map()); |
| uniforms[1] = &(attached_shaders_[1]->uniform_map()); |
| const AttributeMap* attribs = |
| &(attached_shaders_[0]->attrib_map()); |
| |
| for (AttributeMap::const_iterator iter = attribs->begin(); |
| iter != attribs->end(); ++iter) { |
| for (int ii = 0; ii < 2; ++ii) { |
| if (uniforms[ii]->find(iter->first) != uniforms[ii]->end()) { |
| *conflicting_name = iter->first; |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| bool Program::CheckVaryingsPacking( |
| Program::VaryingsPackingOption option) const { |
| DCHECK(attached_shaders_[0].get() && |
| attached_shaders_[0]->shader_type() == GL_VERTEX_SHADER && |
| attached_shaders_[1].get() && |
| attached_shaders_[1]->shader_type() == GL_FRAGMENT_SHADER); |
| const VaryingMap* vertex_varyings = &(attached_shaders_[0]->varying_map()); |
| const VaryingMap* fragment_varyings = &(attached_shaders_[1]->varying_map()); |
| |
| std::map<std::string, ShVariableInfo> combined_map; |
| |
| for (VaryingMap::const_iterator iter = fragment_varyings->begin(); |
| iter != fragment_varyings->end(); ++iter) { |
| if (!iter->second.staticUse && option == kCountOnlyStaticallyUsed) |
| continue; |
| if (!IsBuiltInFragmentVarying(iter->first)) { |
| VaryingMap::const_iterator vertex_iter = |
| vertex_varyings->find(iter->first); |
| if (vertex_iter == vertex_varyings->end() || |
| (!vertex_iter->second.staticUse && |
| option == kCountOnlyStaticallyUsed)) |
| continue; |
| } |
| |
| ShVariableInfo var; |
| var.type = static_cast<sh::GLenum>(iter->second.type); |
| var.size = std::max(1u, iter->second.arraySize); |
| combined_map[iter->first] = var; |
| } |
| |
| if (combined_map.size() == 0) |
| return true; |
| scoped_ptr<ShVariableInfo[]> variables( |
| new ShVariableInfo[combined_map.size()]); |
| size_t index = 0; |
| for (std::map<std::string, ShVariableInfo>::const_iterator iter = |
| combined_map.begin(); |
| iter != combined_map.end(); ++iter) { |
| variables[index].type = iter->second.type; |
| variables[index].size = iter->second.size; |
| ++index; |
| } |
| return ShCheckVariablesWithinPackingLimits( |
| static_cast<int>(manager_->max_varying_vectors()), |
| variables.get(), |
| combined_map.size()); |
| } |
| |
| void Program::GetProgramInfo( |
| ProgramManager* manager, CommonDecoder::Bucket* bucket) const { |
| // NOTE: It seems to me the math in here does not need check for overflow |
| // because the data being calucated from has various small limits. The max |
| // number of attribs + uniforms is somewhere well under 1024. The maximum size |
| // of an identifier is 256 characters. |
| uint32 num_locations = 0; |
| uint32 total_string_size = 0; |
| |
| for (size_t ii = 0; ii < attrib_infos_.size(); ++ii) { |
| const VertexAttrib& info = attrib_infos_[ii]; |
| num_locations += 1; |
| total_string_size += info.name.size(); |
| } |
| |
| for (size_t ii = 0; ii < uniform_infos_.size(); ++ii) { |
| const UniformInfo& info = uniform_infos_[ii]; |
| if (info.IsValid()) { |
| num_locations += info.element_locations.size(); |
| total_string_size += info.name.size(); |
| } |
| } |
| |
| uint32 num_inputs = attrib_infos_.size() + num_uniforms_; |
| uint32 input_size = num_inputs * sizeof(ProgramInput); |
| uint32 location_size = num_locations * sizeof(int32); |
| uint32 size = sizeof(ProgramInfoHeader) + |
| input_size + location_size + total_string_size; |
| |
| bucket->SetSize(size); |
| ProgramInfoHeader* header = bucket->GetDataAs<ProgramInfoHeader*>(0, size); |
| ProgramInput* inputs = bucket->GetDataAs<ProgramInput*>( |
| sizeof(ProgramInfoHeader), input_size); |
| int32* locations = bucket->GetDataAs<int32*>( |
| sizeof(ProgramInfoHeader) + input_size, location_size); |
| char* strings = bucket->GetDataAs<char*>( |
| sizeof(ProgramInfoHeader) + input_size + location_size, |
| total_string_size); |
| DCHECK(header); |
| DCHECK(inputs); |
| DCHECK(locations); |
| DCHECK(strings); |
| |
| header->link_status = link_status_; |
| header->num_attribs = attrib_infos_.size(); |
| header->num_uniforms = num_uniforms_; |
| |
| for (size_t ii = 0; ii < attrib_infos_.size(); ++ii) { |
| const VertexAttrib& info = attrib_infos_[ii]; |
| inputs->size = info.size; |
| inputs->type = info.type; |
| inputs->location_offset = ComputeOffset(header, locations); |
| inputs->name_offset = ComputeOffset(header, strings); |
| inputs->name_length = info.name.size(); |
| *locations++ = info.location; |
| memcpy(strings, info.name.c_str(), info.name.size()); |
| strings += info.name.size(); |
| ++inputs; |
| } |
| |
| for (size_t ii = 0; ii < uniform_infos_.size(); ++ii) { |
| const UniformInfo& info = uniform_infos_[ii]; |
| if (info.IsValid()) { |
| inputs->size = info.size; |
| inputs->type = info.type; |
| inputs->location_offset = ComputeOffset(header, locations); |
| inputs->name_offset = ComputeOffset(header, strings); |
| inputs->name_length = info.name.size(); |
| DCHECK(static_cast<size_t>(info.size) == info.element_locations.size()); |
| for (size_t jj = 0; jj < info.element_locations.size(); ++jj) { |
| if (info.element_locations[jj] == -1) |
| *locations++ = -1; |
| else |
| *locations++ = ProgramManager::MakeFakeLocation(ii, jj); |
| } |
| memcpy(strings, info.name.c_str(), info.name.size()); |
| strings += info.name.size(); |
| ++inputs; |
| } |
| } |
| |
| DCHECK_EQ(ComputeOffset(header, strings), size); |
| } |
| |
| bool Program::GetUniformBlocks(CommonDecoder::Bucket* bucket) const { |
| // The data is packed into the bucket in the following order |
| // 1) header |
| // 2) N entries of block data (except for name and indices) |
| // 3) name1, indices1, name2, indices2, ..., nameN, indicesN |
| // |
| // We query all the data directly through GL calls, assuming they are |
| // cheap through MANGLE. |
| |
| DCHECK(bucket); |
| GLuint program = service_id(); |
| |
| uint32_t header_size = sizeof(UniformBlocksHeader); |
| bucket->SetSize(header_size); // In case we fail. |
| |
| uint32_t num_uniform_blocks = 0; |
| GLint param = GL_FALSE; |
| // We assume program is a valid program service id. |
| glGetProgramiv(program, GL_LINK_STATUS, ¶m); |
| if (param == GL_TRUE) { |
| param = 0; |
| glGetProgramiv(program, GL_ACTIVE_UNIFORM_BLOCKS, ¶m); |
| num_uniform_blocks = static_cast<uint32_t>(param); |
| } |
| if (num_uniform_blocks == 0) { |
| // Although spec allows an implementation to return uniform block info |
| // even if a link fails, for consistency, we disallow that. |
| return true; |
| } |
| |
| std::vector<UniformBlockInfo> blocks(num_uniform_blocks); |
| base::CheckedNumeric<uint32_t> size = sizeof(UniformBlockInfo); |
| size *= num_uniform_blocks; |
| uint32_t entry_size = size.ValueOrDefault(0); |
| size += header_size; |
| std::vector<std::string> names(num_uniform_blocks); |
| GLint max_name_length = 0; |
| glGetProgramiv( |
| program, GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH, &max_name_length); |
| std::vector<GLchar> buffer(max_name_length); |
| GLsizei length; |
| for (uint32_t ii = 0; ii < num_uniform_blocks; ++ii) { |
| param = 0; |
| glGetActiveUniformBlockiv(program, ii, GL_UNIFORM_BLOCK_BINDING, ¶m); |
| blocks[ii].binding = static_cast<uint32_t>(param); |
| |
| param = 0; |
| glGetActiveUniformBlockiv(program, ii, GL_UNIFORM_BLOCK_DATA_SIZE, ¶m); |
| blocks[ii].data_size = static_cast<uint32_t>(param); |
| |
| blocks[ii].name_offset = size.ValueOrDefault(0); |
| param = 0; |
| glGetActiveUniformBlockiv( |
| program, ii, GL_UNIFORM_BLOCK_NAME_LENGTH, ¶m); |
| DCHECK_GE(max_name_length, param); |
| memset(&buffer[0], 0, param); |
| length = 0; |
| glGetActiveUniformBlockName( |
| program, ii, static_cast<GLsizei>(param), &length, &buffer[0]); |
| DCHECK_EQ(param, length + 1); |
| names[ii] = std::string(&buffer[0], length); |
| // TODO(zmo): optimize the name mapping lookup. |
| const std::string* original_name = GetOriginalNameFromHashedName(names[ii]); |
| if (original_name) |
| names[ii] = *original_name; |
| blocks[ii].name_length = names[ii].size() + 1; |
| size += blocks[ii].name_length; |
| |
| param = 0; |
| glGetActiveUniformBlockiv( |
| program, ii, GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, ¶m); |
| blocks[ii].active_uniforms = static_cast<uint32_t>(param); |
| blocks[ii].active_uniform_offset = size.ValueOrDefault(0); |
| base::CheckedNumeric<uint32_t> indices_size = blocks[ii].active_uniforms; |
| indices_size *= sizeof(uint32_t); |
| if (!indices_size.IsValid()) |
| return false; |
| size += indices_size.ValueOrDefault(0); |
| |
| param = 0; |
| glGetActiveUniformBlockiv( |
| program, ii, GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER, ¶m); |
| blocks[ii].referenced_by_vertex_shader = static_cast<uint32_t>(param); |
| |
| param = 0; |
| glGetActiveUniformBlockiv( |
| program, ii, GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER, ¶m); |
| blocks[ii].referenced_by_fragment_shader = static_cast<uint32_t>(param); |
| } |
| if (!size.IsValid()) |
| return false; |
| uint32_t total_size = size.ValueOrDefault(0); |
| DCHECK_LE(header_size + entry_size, total_size); |
| uint32_t data_size = total_size - header_size - entry_size; |
| |
| bucket->SetSize(total_size); |
| UniformBlocksHeader* header = |
| bucket->GetDataAs<UniformBlocksHeader*>(0, header_size); |
| UniformBlockInfo* entries = bucket->GetDataAs<UniformBlockInfo*>( |
| header_size, entry_size); |
| char* data = bucket->GetDataAs<char*>(header_size + entry_size, data_size); |
| DCHECK(header); |
| DCHECK(entries); |
| DCHECK(data); |
| |
| // Copy over data for the header and entries. |
| header->num_uniform_blocks = num_uniform_blocks; |
| memcpy(entries, &blocks[0], entry_size); |
| |
| std::vector<GLint> params; |
| for (uint32_t ii = 0; ii < num_uniform_blocks; ++ii) { |
| // Get active uniform name. |
| memcpy(data, names[ii].c_str(), names[ii].length() + 1); |
| data += names[ii].length() + 1; |
| |
| // Get active uniform indices. |
| if (params.size() < blocks[ii].active_uniforms) |
| params.resize(blocks[ii].active_uniforms); |
| uint32_t num_bytes = blocks[ii].active_uniforms * sizeof(GLint); |
| memset(¶ms[0], 0, num_bytes); |
| glGetActiveUniformBlockiv( |
| program, ii, GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES, ¶ms[0]); |
| uint32_t* indices = reinterpret_cast<uint32_t*>(data); |
| for (uint32_t uu = 0; uu < blocks[ii].active_uniforms; ++uu) { |
| indices[uu] = static_cast<uint32_t>(params[uu]); |
| } |
| data += num_bytes; |
| } |
| DCHECK_EQ(ComputeOffset(header, data), total_size); |
| return true; |
| } |
| |
| bool Program::GetTransformFeedbackVaryings( |
| CommonDecoder::Bucket* bucket) const { |
| // The data is packed into the bucket in the following order |
| // 1) header |
| // 2) N entries of varying data (except for name) |
| // 3) name1, name2, ..., nameN |
| // |
| // We query all the data directly through GL calls, assuming they are |
| // cheap through MANGLE. |
| |
| DCHECK(bucket); |
| GLuint program = service_id(); |
| |
| uint32_t header_size = sizeof(TransformFeedbackVaryingsHeader); |
| bucket->SetSize(header_size); // In case we fail. |
| |
| uint32_t num_transform_feedback_varyings = 0; |
| GLint param = GL_FALSE; |
| // We assume program is a valid program service id. |
| glGetProgramiv(program, GL_LINK_STATUS, ¶m); |
| if (param == GL_TRUE) { |
| param = 0; |
| glGetProgramiv(program, GL_TRANSFORM_FEEDBACK_VARYINGS, ¶m); |
| num_transform_feedback_varyings = static_cast<uint32_t>(param); |
| } |
| if (num_transform_feedback_varyings == 0) { |
| return true; |
| } |
| |
| std::vector<TransformFeedbackVaryingInfo> varyings( |
| num_transform_feedback_varyings); |
| base::CheckedNumeric<uint32_t> size = sizeof(TransformFeedbackVaryingInfo); |
| size *= num_transform_feedback_varyings; |
| uint32_t entry_size = size.ValueOrDefault(0); |
| size += header_size; |
| std::vector<std::string> names(num_transform_feedback_varyings); |
| GLint max_name_length = 0; |
| glGetProgramiv( |
| program, GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH, &max_name_length); |
| if (max_name_length < 1) |
| max_name_length = 1; |
| std::vector<char> buffer(max_name_length); |
| for (uint32_t ii = 0; ii < num_transform_feedback_varyings; ++ii) { |
| GLsizei var_size = 0; |
| GLsizei var_name_length = 0; |
| GLenum var_type = 0; |
| glGetTransformFeedbackVarying( |
| program, ii, max_name_length, |
| &var_name_length, &var_size, &var_type, &buffer[0]); |
| varyings[ii].size = static_cast<uint32_t>(var_size); |
| varyings[ii].type = static_cast<uint32_t>(var_type); |
| varyings[ii].name_offset = static_cast<uint32_t>(size.ValueOrDefault(0)); |
| DCHECK_GT(max_name_length, var_name_length); |
| names[ii] = std::string(&buffer[0], var_name_length); |
| // TODO(zmo): optimize the name mapping lookup. |
| const std::string* original_name = GetOriginalNameFromHashedName(names[ii]); |
| if (original_name) |
| names[ii] = *original_name; |
| varyings[ii].name_length = names[ii].size() + 1; |
| size += names[ii].size(); |
| size += 1; |
| } |
| if (!size.IsValid()) |
| return false; |
| uint32_t total_size = size.ValueOrDefault(0); |
| DCHECK_LE(header_size + entry_size, total_size); |
| uint32_t data_size = total_size - header_size - entry_size; |
| |
| bucket->SetSize(total_size); |
| TransformFeedbackVaryingsHeader* header = |
| bucket->GetDataAs<TransformFeedbackVaryingsHeader*>(0, header_size); |
| TransformFeedbackVaryingInfo* entries = |
| bucket->GetDataAs<TransformFeedbackVaryingInfo*>(header_size, entry_size); |
| char* data = bucket->GetDataAs<char*>(header_size + entry_size, data_size); |
| DCHECK(header); |
| DCHECK(entries); |
| DCHECK(data); |
| |
| // Copy over data for the header and entries. |
| header->num_transform_feedback_varyings = num_transform_feedback_varyings; |
| memcpy(entries, &varyings[0], entry_size); |
| |
| for (uint32_t ii = 0; ii < num_transform_feedback_varyings; ++ii) { |
| memcpy(data, names[ii].c_str(), names[ii].length() + 1); |
| data += names[ii].length() + 1; |
| } |
| DCHECK_EQ(ComputeOffset(header, data), total_size); |
| return true; |
| } |
| |
| bool Program::GetUniformsES3(CommonDecoder::Bucket* bucket) const { |
| // The data is packed into the bucket in the following order |
| // 1) header |
| // 2) N entries of UniformES3Info |
| // |
| // We query all the data directly through GL calls, assuming they are |
| // cheap through MANGLE. |
| |
| DCHECK(bucket); |
| GLuint program = service_id(); |
| |
| uint32_t header_size = sizeof(UniformsES3Header); |
| bucket->SetSize(header_size); // In case we fail. |
| |
| GLsizei count = 0; |
| GLint param = GL_FALSE; |
| // We assume program is a valid program service id. |
| glGetProgramiv(program, GL_LINK_STATUS, ¶m); |
| if (param == GL_TRUE) { |
| param = 0; |
| glGetProgramiv(program, GL_ACTIVE_UNIFORMS, &count); |
| } |
| if (count == 0) { |
| return true; |
| } |
| |
| base::CheckedNumeric<uint32_t> size = sizeof(UniformES3Info); |
| size *= count; |
| uint32_t entry_size = size.ValueOrDefault(0); |
| size += header_size; |
| if (!size.IsValid()) |
| return false; |
| uint32_t total_size = size.ValueOrDefault(0); |
| bucket->SetSize(total_size); |
| UniformsES3Header* header = |
| bucket->GetDataAs<UniformsES3Header*>(0, header_size); |
| DCHECK(header); |
| header->num_uniforms = static_cast<uint32_t>(count); |
| |
| // Instead of GetDataAs<UniformES3Info*>, we do GetDataAs<int32_t>. This is |
| // because struct UniformES3Info is defined as five int32_t. |
| // By doing this, we can fill the structs through loops. |
| int32_t* entries = |
| bucket->GetDataAs<int32_t*>(header_size, entry_size); |
| DCHECK(entries); |
| const size_t kStride = sizeof(UniformES3Info) / sizeof(int32_t); |
| |
| const GLenum kPname[] = { |
| GL_UNIFORM_BLOCK_INDEX, |
| GL_UNIFORM_OFFSET, |
| GL_UNIFORM_ARRAY_STRIDE, |
| GL_UNIFORM_MATRIX_STRIDE, |
| GL_UNIFORM_IS_ROW_MAJOR, |
| }; |
| const GLint kDefaultValue[] = { -1, -1, -1, -1, 0 }; |
| const size_t kNumPnames = arraysize(kPname); |
| std::vector<GLuint> indices(count); |
| for (GLsizei ii = 0; ii < count; ++ii) { |
| indices[ii] = ii; |
| } |
| std::vector<GLint> params(count); |
| for (size_t pname_index = 0; pname_index < kNumPnames; ++pname_index) { |
| for (GLsizei ii = 0; ii < count; ++ii) { |
| params[ii] = kDefaultValue[pname_index]; |
| } |
| glGetActiveUniformsiv( |
| program, count, &indices[0], kPname[pname_index], ¶ms[0]); |
| for (GLsizei ii = 0; ii < count; ++ii) { |
| entries[kStride * ii + pname_index] = params[ii]; |
| } |
| } |
| return true; |
| } |
| |
| void Program::TransformFeedbackVaryings(GLsizei count, |
| const char* const* varyings, |
| GLenum buffer_mode) { |
| transform_feedback_varyings_.clear(); |
| for (GLsizei i = 0; i < count; ++i) { |
| transform_feedback_varyings_.push_back(std::string(varyings[i])); |
| } |
| transform_feedback_buffer_mode_ = buffer_mode; |
| } |
| |
| Program::~Program() { |
| if (manager_) { |
| if (manager_->have_context_) { |
| glDeleteProgram(service_id()); |
| } |
| manager_->StopTracking(this); |
| manager_ = NULL; |
| } |
| } |
| |
| |
| ProgramManager::ProgramManager(ProgramCache* program_cache, |
| uint32 max_varying_vectors) |
| : program_count_(0), |
| have_context_(true), |
| program_cache_(program_cache), |
| max_varying_vectors_(max_varying_vectors) { } |
| |
| ProgramManager::~ProgramManager() { |
| DCHECK(programs_.empty()); |
| } |
| |
| void ProgramManager::Destroy(bool have_context) { |
| have_context_ = have_context; |
| programs_.clear(); |
| } |
| |
| void ProgramManager::StartTracking(Program* /* program */) { |
| ++program_count_; |
| } |
| |
| void ProgramManager::StopTracking(Program* /* program */) { |
| --program_count_; |
| } |
| |
| Program* ProgramManager::CreateProgram( |
| GLuint client_id, GLuint service_id) { |
| std::pair<ProgramMap::iterator, bool> result = |
| programs_.insert( |
| std::make_pair(client_id, |
| scoped_refptr<Program>( |
| new Program(this, service_id)))); |
| DCHECK(result.second); |
| return result.first->second.get(); |
| } |
| |
| Program* ProgramManager::GetProgram(GLuint client_id) { |
| ProgramMap::iterator it = programs_.find(client_id); |
| return it != programs_.end() ? it->second.get() : NULL; |
| } |
| |
| bool ProgramManager::GetClientId(GLuint service_id, GLuint* client_id) const { |
| // This doesn't need to be fast. It's only used during slow queries. |
| for (ProgramMap::const_iterator it = programs_.begin(); |
| it != programs_.end(); ++it) { |
| if (it->second->service_id() == service_id) { |
| *client_id = it->first; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| ProgramCache* ProgramManager::program_cache() const { |
| return program_cache_; |
| } |
| |
| bool ProgramManager::IsOwned(Program* program) { |
| for (ProgramMap::iterator it = programs_.begin(); |
| it != programs_.end(); ++it) { |
| if (it->second.get() == program) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void ProgramManager::RemoveProgramInfoIfUnused( |
| ShaderManager* shader_manager, Program* program) { |
| DCHECK(shader_manager); |
| DCHECK(program); |
| DCHECK(IsOwned(program)); |
| if (program->IsDeleted() && !program->InUse()) { |
| program->DetachShaders(shader_manager); |
| for (ProgramMap::iterator it = programs_.begin(); |
| it != programs_.end(); ++it) { |
| if (it->second.get() == program) { |
| programs_.erase(it); |
| return; |
| } |
| } |
| NOTREACHED(); |
| } |
| } |
| |
| void ProgramManager::MarkAsDeleted( |
| ShaderManager* shader_manager, |
| Program* program) { |
| DCHECK(shader_manager); |
| DCHECK(program); |
| DCHECK(IsOwned(program)); |
| program->MarkAsDeleted(); |
| RemoveProgramInfoIfUnused(shader_manager, program); |
| } |
| |
| void ProgramManager::UseProgram(Program* program) { |
| DCHECK(program); |
| DCHECK(IsOwned(program)); |
| program->IncUseCount(); |
| } |
| |
| void ProgramManager::UnuseProgram( |
| ShaderManager* shader_manager, |
| Program* program) { |
| DCHECK(shader_manager); |
| DCHECK(program); |
| DCHECK(IsOwned(program)); |
| program->DecUseCount(); |
| RemoveProgramInfoIfUnused(shader_manager, program); |
| } |
| |
| void ProgramManager::ClearUniforms(Program* program) { |
| DCHECK(program); |
| program->ClearUniforms(&zero_); |
| } |
| |
| int32 ProgramManager::MakeFakeLocation(int32 index, int32 element) { |
| return index + element * 0x10000; |
| } |
| |
| } // namespace gles2 |
| } // namespace gpu |