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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "mojo/gpu/texture_uploader.h" | |
| 6 | |
| 7 #ifndef GL_GLEXT_PROTOTYPES | |
| 8 #define GL_GLEXT_PROTOTYPES | |
| 9 #endif | |
| 10 | |
| 11 #include <GLES2/gl2.h> | |
| 12 #include <GLES2/gl2extmojo.h> | |
| 13 | |
| 14 #include "mojo/services/geometry/cpp/geometry_util.h" | |
| 15 #include "mojo/services/surfaces/cpp/surfaces_utils.h" | |
| 16 | |
| 17 namespace mojo { | |
| 18 | |
| 19 mojo::FramePtr TextureUploader::GetUploadFrame( | |
| 20 base::WeakPtr<mojo::GLContext> context, | |
| 21 uint32_t resource_id, | |
| 22 const scoped_ptr<mojo::GLTexture>& texture) { | |
| 23 if (!context) { | |
| 24 return mojo::FramePtr(); | |
| 25 } | |
| 26 | |
| 27 mojo::Size size = texture->size(); | |
| 28 | |
| 29 mojo::FramePtr frame = mojo::Frame::New(); | |
| 30 frame->resources.resize(0u); | |
| 31 | |
| 32 mojo::Rect bounds; | |
| 33 bounds.width = size.width; | |
| 34 bounds.height = size.height; | |
| 35 mojo::PassPtr pass = mojo::CreateDefaultPass(1, bounds); | |
| 36 pass->quads.resize(0u); | |
| 37 pass->shared_quad_states.push_back(mojo::CreateDefaultSQS(size)); | |
| 38 | |
| 39 context->MakeCurrent(); | |
| 40 glBindTexture(GL_TEXTURE_2D, texture->texture_id()); | |
| 41 GLbyte mailbox[GL_MAILBOX_SIZE_CHROMIUM]; | |
| 42 glGenMailboxCHROMIUM(mailbox); | |
| 43 glProduceTextureCHROMIUM(GL_TEXTURE_2D, mailbox); | |
| 44 GLuint sync_point = glInsertSyncPointCHROMIUM(); | |
| 45 | |
| 46 mojo::TransferableResourcePtr resource = mojo::TransferableResource::New(); | |
| 47 resource->id = resource_id; | |
| 48 resource->format = mojo::ResourceFormat::RGBA_8888; | |
| 49 resource->filter = GL_LINEAR; | |
| 50 resource->size = size.Clone(); | |
| 51 mojo::MailboxHolderPtr mailbox_holder = mojo::MailboxHolder::New(); | |
| 52 mailbox_holder->mailbox = mojo::Mailbox::New(); | |
| 53 for (int i = 0; i < GL_MAILBOX_SIZE_CHROMIUM; ++i) | |
| 54 mailbox_holder->mailbox->name.push_back(mailbox[i]); | |
| 55 mailbox_holder->texture_target = GL_TEXTURE_2D; | |
| 56 mailbox_holder->sync_point = sync_point; | |
| 57 resource->mailbox_holder = mailbox_holder.Pass(); | |
| 58 resource->is_repeated = false; | |
| 59 resource->is_software = false; | |
| 60 | |
| 61 mojo::QuadPtr quad = mojo::Quad::New(); | |
| 62 quad->material = mojo::Material::TEXTURE_CONTENT; | |
| 63 | |
| 64 mojo::RectPtr rect = mojo::Rect::New(); | |
| 65 rect->width = size.width; | |
| 66 rect->height = size.height; | |
| 67 quad->rect = rect.Clone(); | |
| 68 quad->opaque_rect = rect.Clone(); | |
| 69 quad->visible_rect = rect.Clone(); | |
| 70 quad->needs_blending = true; | |
| 71 quad->shared_quad_state_index = 0u; | |
| 72 | |
| 73 mojo::TextureQuadStatePtr texture_state = mojo::TextureQuadState::New(); | |
| 74 texture_state->resource_id = resource->id; | |
| 75 texture_state->premultiplied_alpha = true; | |
| 76 texture_state->uv_top_left = mojo::PointF::New(); | |
| 77 texture_state->uv_bottom_right = mojo::PointF::New(); | |
| 78 texture_state->uv_bottom_right->x = 1.f; | |
| 79 texture_state->uv_bottom_right->y = 1.f; | |
| 80 texture_state->background_color = mojo::Color::New(); | |
| 81 texture_state->background_color->rgba = 0; | |
| 82 for (int i = 0; i < 4; ++i) | |
| 83 texture_state->vertex_opacity.push_back(1.f); | |
| 84 texture_state->flipped = false; | |
| 85 | |
| 86 frame->resources.push_back(resource.Pass()); | |
| 87 quad->texture_quad_state = texture_state.Pass(); | |
| 88 pass->quads.push_back(quad.Pass()); | |
| 89 | |
| 90 frame->passes.push_back(pass.Pass()); | |
| 91 return frame; | |
| 92 } | |
| 93 | |
| 94 } // namespace mojo | |
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