| // Copyright 2013 The Flutter 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 "flutter/shell/platform/linux/public/flutter_linux/fl_pixel_buffer_texture.h" |
| |
| #include <epoxy/gl.h> |
| #include <gmodule.h> |
| |
| #include "flutter/shell/platform/linux/fl_pixel_buffer_texture_private.h" |
| |
| typedef struct { |
| int64_t id; |
| GLuint texture_id; |
| } FlPixelBufferTexturePrivate; |
| |
| static void fl_pixel_buffer_texture_iface_init(FlTextureInterface* iface); |
| |
| G_DEFINE_TYPE_WITH_CODE( |
| FlPixelBufferTexture, |
| fl_pixel_buffer_texture, |
| G_TYPE_OBJECT, |
| G_IMPLEMENT_INTERFACE(fl_texture_get_type(), |
| fl_pixel_buffer_texture_iface_init); |
| G_ADD_PRIVATE(FlPixelBufferTexture)) |
| |
| // Implements FlTexture::set_id |
| static void fl_pixel_buffer_texture_set_id(FlTexture* texture, int64_t id) { |
| FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(texture); |
| FlPixelBufferTexturePrivate* priv = |
| reinterpret_cast<FlPixelBufferTexturePrivate*>( |
| fl_pixel_buffer_texture_get_instance_private(self)); |
| priv->id = id; |
| } |
| |
| // Implements FlTexture::set_id |
| static int64_t fl_pixel_buffer_texture_get_id(FlTexture* texture) { |
| FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(texture); |
| FlPixelBufferTexturePrivate* priv = |
| reinterpret_cast<FlPixelBufferTexturePrivate*>( |
| fl_pixel_buffer_texture_get_instance_private(self)); |
| return priv->id; |
| } |
| |
| static void fl_pixel_buffer_texture_iface_init(FlTextureInterface* iface) { |
| iface->set_id = fl_pixel_buffer_texture_set_id; |
| iface->get_id = fl_pixel_buffer_texture_get_id; |
| } |
| |
| static void fl_pixel_buffer_texture_dispose(GObject* object) { |
| FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(object); |
| FlPixelBufferTexturePrivate* priv = |
| reinterpret_cast<FlPixelBufferTexturePrivate*>( |
| fl_pixel_buffer_texture_get_instance_private(self)); |
| |
| if (priv->texture_id) { |
| glDeleteTextures(1, &priv->texture_id); |
| priv->texture_id = 0; |
| } |
| |
| G_OBJECT_CLASS(fl_pixel_buffer_texture_parent_class)->dispose(object); |
| } |
| |
| static void check_gl_error(int line) { |
| GLenum err = glGetError(); |
| if (err) { |
| g_warning("glGetError %x (%s:%d)\n", err, __FILE__, line); |
| } |
| } |
| |
| gboolean fl_pixel_buffer_texture_populate(FlPixelBufferTexture* texture, |
| uint32_t width, |
| uint32_t height, |
| FlutterOpenGLTexture* opengl_texture, |
| GError** error) { |
| FlPixelBufferTexture* self = FL_PIXEL_BUFFER_TEXTURE(texture); |
| FlPixelBufferTexturePrivate* priv = |
| reinterpret_cast<FlPixelBufferTexturePrivate*>( |
| fl_pixel_buffer_texture_get_instance_private(self)); |
| |
| const uint8_t* buffer = nullptr; |
| if (!FL_PIXEL_BUFFER_TEXTURE_GET_CLASS(self)->copy_pixels( |
| self, &buffer, &width, &height, error)) { |
| return FALSE; |
| } |
| |
| if (priv->texture_id == 0) { |
| glGenTextures(1, &priv->texture_id); |
| check_gl_error(__LINE__); |
| glBindTexture(GL_TEXTURE_2D, priv->texture_id); |
| check_gl_error(__LINE__); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER); |
| check_gl_error(__LINE__); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER); |
| check_gl_error(__LINE__); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| check_gl_error(__LINE__); |
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| check_gl_error(__LINE__); |
| } else { |
| glBindTexture(GL_TEXTURE_2D, priv->texture_id); |
| check_gl_error(__LINE__); |
| } |
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, |
| GL_UNSIGNED_BYTE, buffer); |
| check_gl_error(__LINE__); |
| |
| opengl_texture->target = GL_TEXTURE_2D; |
| opengl_texture->name = priv->texture_id; |
| opengl_texture->format = GL_RGBA8; |
| opengl_texture->destruction_callback = nullptr; |
| opengl_texture->user_data = nullptr; |
| opengl_texture->width = width; |
| opengl_texture->height = height; |
| |
| return TRUE; |
| } |
| |
| static void fl_pixel_buffer_texture_class_init( |
| FlPixelBufferTextureClass* klass) { |
| G_OBJECT_CLASS(klass)->dispose = fl_pixel_buffer_texture_dispose; |
| } |
| |
| static void fl_pixel_buffer_texture_init(FlPixelBufferTexture* self) {} |