| /* |
| * Copyright (C) 2009 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "third_party/blink/renderer/modules/webgl/webgl_program.h" |
| |
| #include "gpu/command_buffer/client/gles2_interface.h" |
| #include "third_party/blink/renderer/modules/webgl/webgl_context_group.h" |
| #include "third_party/blink/renderer/modules/webgl/webgl_rendering_context_base.h" |
| |
| namespace blink { |
| |
| WebGLProgram* WebGLProgram::Create(WebGLRenderingContextBase* ctx) { |
| return MakeGarbageCollected<WebGLProgram>(ctx); |
| } |
| |
| WebGLProgram::WebGLProgram(WebGLRenderingContextBase* ctx) |
| : WebGLSharedPlatform3DObject(ctx), |
| link_status_(false), |
| link_count_(0), |
| active_transform_feedback_count_(0), |
| info_valid_(true), |
| required_transform_feedback_buffer_count_(0), |
| required_transform_feedback_buffer_count_after_next_link_(0) { |
| SetObject(ctx->ContextGL()->CreateProgram()); |
| } |
| |
| WebGLProgram::~WebGLProgram() { |
| RunDestructor(); |
| } |
| |
| void WebGLProgram::DeleteObjectImpl(gpu::gles2::GLES2Interface* gl) { |
| gl->DeleteProgram(object_); |
| object_ = 0; |
| if (!DestructionInProgress()) { |
| if (vertex_shader_) { |
| vertex_shader_->OnDetached(gl); |
| vertex_shader_ = nullptr; |
| } |
| if (fragment_shader_) { |
| fragment_shader_->OnDetached(gl); |
| fragment_shader_ = nullptr; |
| } |
| if (compute_shader_) { |
| compute_shader_->OnDetached(gl); |
| compute_shader_ = nullptr; |
| } |
| } |
| } |
| |
| bool WebGLProgram::LinkStatus(WebGLRenderingContextBase* context) { |
| CacheInfoIfNeeded(context); |
| return link_status_; |
| } |
| |
| bool WebGLProgram::CompletionStatus(WebGLRenderingContextBase* context) { |
| GLint completed = 0; |
| gpu::gles2::GLES2Interface* gl = context->ContextGL(); |
| gl->GetProgramiv(object_, GL_COMPLETION_STATUS_KHR, &completed); |
| |
| return completed; |
| } |
| |
| void WebGLProgram::IncreaseLinkCount() { |
| ++link_count_; |
| info_valid_ = false; |
| } |
| |
| void WebGLProgram::IncreaseActiveTransformFeedbackCount() { |
| ++active_transform_feedback_count_; |
| } |
| |
| void WebGLProgram::DecreaseActiveTransformFeedbackCount() { |
| --active_transform_feedback_count_; |
| } |
| |
| WebGLShader* WebGLProgram::GetAttachedShader(GLenum type) { |
| switch (type) { |
| case GL_VERTEX_SHADER: |
| return vertex_shader_; |
| case GL_FRAGMENT_SHADER: |
| return fragment_shader_; |
| case GL_COMPUTE_SHADER: |
| return compute_shader_; |
| default: |
| return nullptr; |
| } |
| } |
| |
| bool WebGLProgram::AttachShader(WebGLShader* shader) { |
| if (!shader || !shader->Object()) |
| return false; |
| switch (shader->GetType()) { |
| case GL_VERTEX_SHADER: |
| if (vertex_shader_) |
| return false; |
| vertex_shader_ = shader; |
| return true; |
| case GL_FRAGMENT_SHADER: |
| if (fragment_shader_) |
| return false; |
| fragment_shader_ = shader; |
| return true; |
| case GL_COMPUTE_SHADER: |
| if (compute_shader_) |
| return false; |
| compute_shader_ = shader; |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool WebGLProgram::DetachShader(WebGLShader* shader) { |
| if (!shader || !shader->Object()) |
| return false; |
| switch (shader->GetType()) { |
| case GL_VERTEX_SHADER: |
| if (vertex_shader_ != shader) |
| return false; |
| vertex_shader_ = nullptr; |
| return true; |
| case GL_FRAGMENT_SHADER: |
| if (fragment_shader_ != shader) |
| return false; |
| fragment_shader_ = nullptr; |
| return true; |
| case GL_COMPUTE_SHADER: |
| if (compute_shader_ != shader) |
| return false; |
| compute_shader_ = nullptr; |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| void WebGLProgram::CacheInfoIfNeeded(WebGLRenderingContextBase* context) { |
| if (info_valid_) |
| return; |
| if (!object_) |
| return; |
| gpu::gles2::GLES2Interface* gl = context->ContextGL(); |
| GLint link_status = 0; |
| gl->GetProgramiv(object_, GL_LINK_STATUS, &link_status); |
| setLinkStatus(link_status); |
| } |
| |
| void WebGLProgram::setLinkStatus(bool link_status) { |
| if (info_valid_) |
| return; |
| |
| link_status_ = link_status; |
| if (link_status_ == GL_TRUE) { |
| required_transform_feedback_buffer_count_ = |
| required_transform_feedback_buffer_count_after_next_link_; |
| } |
| info_valid_ = true; |
| } |
| |
| void WebGLProgram::Trace(blink::Visitor* visitor) { |
| visitor->Trace(vertex_shader_); |
| visitor->Trace(fragment_shader_); |
| visitor->Trace(compute_shader_); |
| WebGLSharedPlatform3DObject::Trace(visitor); |
| } |
| |
| } // namespace blink |