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Unified Diff: apps/moterm/gl_helper_test_app.cc

Issue 1556683004: Port Moterm to Mozart. (Closed) Base URL: git@github.com:domokit/mojo.git@moz-16
Patch Set: fix nits Created 4 years, 11 months ago
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Index: apps/moterm/gl_helper_test_app.cc
diff --git a/apps/moterm/gl_helper_test_app.cc b/apps/moterm/gl_helper_test_app.cc
deleted file mode 100644
index 7147f6d536ceadbee2d38a75b5cc1aabda520949..0000000000000000000000000000000000000000
--- a/apps/moterm/gl_helper_test_app.cc
+++ /dev/null
@@ -1,279 +0,0 @@
-// Copyright 2015 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.
-
-// This is a test application for gl_helper.*, which draws directly to a native
-// viewport (without using the view manager).
-
-#include <GLES2/gl2.h>
-#include <math.h>
-
-#include "apps/moterm/gl_helper.h"
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "mojo/application/application_runner_chromium.h"
-#include "mojo/public/c/system/main.h"
-#include "mojo/public/cpp/application/application_impl.h"
-#include "mojo/services/geometry/interfaces/geometry.mojom.h"
-#include "mojo/services/gpu/interfaces/context_provider.mojom.h"
-#include "mojo/services/native_viewport/interfaces/native_viewport.mojom.h"
-#include "mojo/services/surfaces/interfaces/display.mojom.h"
-#include "mojo/services/surfaces/interfaces/quads.mojom.h"
-#include "mojo/services/surfaces/interfaces/surfaces.mojom.h"
-
-namespace {
-
-GLuint LoadShader(GLenum type, const char* shader_source) {
- GLuint shader = glCreateShader(type);
- CHECK(shader);
- glShaderSource(shader, 1, &shader_source, nullptr);
- glCompileShader(shader);
- GLint compiled = 0;
- glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
- CHECK(compiled);
- return shader;
-}
-
-class GlHelperExampleApp : public mojo::ApplicationDelegate,
- public GlHelper::Client {
- public:
- GlHelperExampleApp()
- : application_impl_(),
- program_(0),
- transform_location_(0),
- scale_location_(0),
- framebuffer_(0),
- vertex_buffer_(0),
- draw_number_(0) {}
- ~GlHelperExampleApp() override {}
-
- private:
- void OnViewportMetricsReceived(mojo::ViewportMetricsPtr metrics) {
- DVLOG(1) << "Viewport metrics received: size = " << metrics->size->width
- << "x" << metrics->size->height
- << ", device_pixel_ratio = " << metrics->device_pixel_ratio;
-
- if (metrics->size->width != viewport_size_.width ||
- metrics->size->height != viewport_size_.height) {
- viewport_size_ = *metrics->size;
- gl_helper_->SetSurfaceSize(viewport_size_);
- }
-
- native_viewport_->RequestMetrics(
- base::Bind(&GlHelperExampleApp::OnViewportMetricsReceived,
- base::Unretained(this)));
- }
-
- void InitGlState() {
- static const char vertex_shader_source[] =
- "attribute vec4 position; \n"
- "uniform mat4 transform; \n"
- "uniform vec4 scale; \n"
- "void main() { \n"
- " gl_Position = (position * transform) * scale; \n"
- "} \n";
- static const char fragment_shader_source[] =
- "precision mediump float; \n"
- "void main() { \n"
- " gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); \n"
- "} \n";
- static const float vertices[] = {
- 0.f, 0.5f, -sqrtf(5.f) / 4.f, -0.25f, sqrtf(5.f) / 4.f, -0.25f};
- GLuint vertex_shader = LoadShader(GL_VERTEX_SHADER, vertex_shader_source);
- GLuint fragment_shader =
- LoadShader(GL_FRAGMENT_SHADER, fragment_shader_source);
- program_ = glCreateProgram();
- CHECK(program_);
- glAttachShader(program_, vertex_shader);
- glAttachShader(program_, fragment_shader);
- glBindAttribLocation(program_, kPositionLocation, "position");
- glLinkProgram(program_);
- glDeleteShader(vertex_shader);
- glDeleteShader(fragment_shader);
- GLint linked = 0;
- glGetProgramiv(program_, GL_LINK_STATUS, &linked);
- CHECK(linked);
- transform_location_ = glGetUniformLocation(program_, "transform");
- CHECK_NE(transform_location_, -1);
- scale_location_ = glGetUniformLocation(program_, "scale");
- CHECK_NE(scale_location_, -1);
-
- glGenFramebuffers(1, &framebuffer_);
- CHECK(framebuffer_);
-
- glGenBuffers(1, &vertex_buffer_);
- CHECK(vertex_buffer_);
- glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer_);
- glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
-
- glClearColor(0.f, 1.f, 0.f, 1.f);
- }
-
- void Draw() {
- DCHECK(gl_helper_);
-
- gl_helper_->StartFrame();
-
- if (!program_)
- InitGlState();
-
- glBindFramebuffer(GL_FRAMEBUFFER, framebuffer_);
- glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
- gl_helper_->GetFrameTexture(), 0);
- glViewport(0, 0, viewport_size_.width, viewport_size_.height);
-
- glClear(GL_COLOR_BUFFER_BIT);
-
- glUseProgram(program_);
-
- float angle = static_cast<float>(draw_number_ % 360) * M_PI / 180;
- float transform[4][4] = {{cosf(angle), sinf(angle), 0.f, 0.f},
- {-sinf(angle), cosf(angle), 0.f, 0.f},
- {0.f, 0.f, 1.f, 0.f},
- {0.f, 0.f, 0.f, 1.f}};
- glUniformMatrix4fv(transform_location_, 1, GL_FALSE, &transform[0][0]);
- if (viewport_size_.width >= viewport_size_.height) {
- glUniform4f(scale_location_, static_cast<float>(viewport_size_.height) /
- static_cast<float>(viewport_size_.width),
- 1.f, 1.f, 1.f);
- } else {
- glUniform4f(scale_location_, 1.f,
- static_cast<float>(viewport_size_.width) /
- static_cast<float>(viewport_size_.height),
- 1.f, 1.f);
- }
-
- glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer_);
- glVertexAttribPointer(kPositionLocation, 2, GL_FLOAT, GL_FALSE, 0, 0);
- glEnableVertexAttribArray(kPositionLocation);
- glDrawArrays(GL_TRIANGLES, 0, 3);
-
- gl_helper_->EndFrame();
-
- draw_number_++;
- }
-
- void SubmitFrame() {
- DCHECK(surface_id_.local);
- DCHECK(surface_id_.id_namespace);
-
- mojo::FramePtr frame = mojo::Frame::New();
- frame->resources = mojo::Array<mojo::TransferableResourcePtr>::New(0);
- frame->passes = mojo::Array<mojo::PassPtr>::New(1);
- mojo::PassPtr pass = mojo::Pass::New();
- pass->id = 0;
- mojo::Rect viewport_rect;
- viewport_rect.width = viewport_size_.width;
- viewport_rect.height = viewport_size_.height;
- pass->output_rect = viewport_rect.Clone();
- pass->damage_rect = viewport_rect.Clone();
- mojo::Transform identity_transform;
- identity_transform.matrix = mojo::Array<float>::New(16);
- for (size_t i = 0; i < 4; i++) {
- for (size_t j = 0; j < 4; j++)
- identity_transform.matrix[4 * i + j] = (i == j);
- }
- pass->transform_to_root_target = identity_transform.Clone();
- pass->has_transparent_background = false;
- pass->quads = mojo::Array<mojo::QuadPtr>::New(1);
- mojo::QuadPtr quad = mojo::Quad::New();
- quad->material = mojo::Material::SURFACE_CONTENT;
- quad->rect = viewport_rect.Clone();
- quad->opaque_rect = viewport_rect.Clone();
- quad->visible_rect = viewport_rect.Clone();
- quad->needs_blending = false;
- quad->shared_quad_state_index = 0;
- mojo::SurfaceQuadStatePtr surface_quad_state =
- mojo::SurfaceQuadState::New();
- surface_quad_state->surface = surface_id_.Clone();
- quad->surface_quad_state = surface_quad_state.Pass();
-
- pass->quads[0] = quad.Pass();
- pass->shared_quad_states = mojo::Array<mojo::SharedQuadStatePtr>::New(1);
- mojo::SharedQuadStatePtr shared_quad_state = mojo::SharedQuadState::New();
- shared_quad_state->content_to_target_transform = identity_transform.Clone();
- shared_quad_state->content_bounds = viewport_size_.Clone();
- shared_quad_state->visible_content_rect = viewport_rect.Clone();
- shared_quad_state->clip_rect = viewport_rect.Clone();
- shared_quad_state->is_clipped = false;
- shared_quad_state->opacity = 1;
- shared_quad_state->blend_mode = mojo::SkXfermode::kSrc_Mode;
- shared_quad_state->sorting_context_id = 0;
- pass->shared_quad_states[0] = shared_quad_state.Pass();
- frame->passes[0] = pass.Pass();
-
- DCHECK(display_);
- display_->SubmitFrame(frame.Pass(), mojo::Display::SubmitFrameCallback());
- }
-
- // |mojo::ApplicationDelegate|:
- void Initialize(mojo::ApplicationImpl* application_impl) override {
- DCHECK(!application_impl_);
- application_impl_ = application_impl;
-
- application_impl->ConnectToService("mojo:native_viewport_service",
- &native_viewport_);
- viewport_size_.width = 800;
- viewport_size_.height = 600;
- native_viewport_->Create(
- viewport_size_.Clone(), mojo::SurfaceConfiguration::New(),
- base::Bind(&GlHelperExampleApp::OnViewportMetricsReceived,
- base::Unretained(this)));
- native_viewport_->Show();
-
- mojo::ContextProviderPtr context_provider;
- native_viewport_->GetContextProvider(GetProxy(&context_provider));
-
- mojo::DisplayFactoryPtr display_factory;
- application_impl_->ConnectToService("mojo:surfaces_service",
- &display_factory);
- display_factory->Create(context_provider.Pass(), nullptr,
- GetProxy(&display_));
-
- gl_helper_.reset(new GlHelper(this, application_impl_->shell(), GL_RGBA,
- false, viewport_size_));
- Draw();
- }
-
- // |GlHelper::Client|:
- void OnSurfaceIdChanged(mojo::SurfaceIdPtr surface_id) override {
- surface_id_ = *surface_id;
- SubmitFrame();
- }
-
- void OnContextLost() override { CHECK(false) << "Oops, lost context."; }
-
- void OnFrameDisplayed(uint32_t frame_id) override { Draw(); }
-
- static const GLuint kPositionLocation = 0;
-
- mojo::ApplicationImpl* application_impl_;
- mojo::NativeViewportPtr native_viewport_;
- mojo::Size viewport_size_;
- mojo::DisplayPtr display_;
- scoped_ptr<GlHelper> gl_helper_;
-
- mojo::SurfaceId surface_id_;
-
- // GL-related state:
- GLuint program_;
- GLint transform_location_;
- GLint scale_location_;
- GLuint framebuffer_;
- GLuint vertex_buffer_;
-
- uint64_t draw_number_;
-
- DISALLOW_COPY_AND_ASSIGN(GlHelperExampleApp);
-};
-
-const GLuint GlHelperExampleApp::kPositionLocation;
-
-} // namespace
-
-MojoResult MojoMain(MojoHandle application_request) {
- mojo::ApplicationRunnerChromium runner(new GlHelperExampleApp());
- return runner.Run(application_request);
-}
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