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Linux texture support #20714
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Linux texture support #20714
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05b183d
Linux texture support
anirudhb 1b77228
Fix clang-tidy errors
anirudhb 013cd2a
Tests (partial)
anirudhb 612995a
Fix nits, finish tests
anirudhb 8a007ba
Change texture_id back to before
anirudhb 051333b
Update golden licenses with new files
anirudhb e2e365f
Oops
anirudhb db16569
Fix nits
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| // 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. | ||
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| #include "flutter/shell/platform/linux/fl_external_texture_gl.h" | ||
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| #include <EGL/egl.h> | ||
| #include <GL/gl.h> | ||
| #include <gmodule.h> | ||
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| typedef struct { | ||
| bool valid; | ||
| void (*genTextures)(GLsizei n, GLuint* textures); | ||
| void (*bindTexture)(GLenum target, GLuint texture); | ||
| void (*texParameteri)(GLenum target, GLenum pname, GLenum param); | ||
| void (*texImage2D)(GLenum target, | ||
| GLint level, | ||
| GLint internalformat, | ||
| GLsizei width, | ||
| GLsizei height, | ||
| GLint border, | ||
| GLenum format, | ||
| GLenum type, | ||
| const void* data); | ||
| void (*deleteTextures)(GLsizei n, const GLuint* textures); | ||
| } glFuncs; | ||
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| static glFuncs* load_gl_funcs() { | ||
| static glFuncs funcs; | ||
| if (!funcs.valid) { | ||
| funcs.genTextures = reinterpret_cast<void (*)(GLsizei, GLuint*)>( | ||
| eglGetProcAddress("glGenTextures")); | ||
| funcs.bindTexture = reinterpret_cast<void (*)(GLenum, GLuint)>( | ||
| eglGetProcAddress("glBindTexture")); | ||
| funcs.texParameteri = reinterpret_cast<void (*)(GLenum, GLenum, GLenum)>( | ||
| eglGetProcAddress("glTexParameteri")); | ||
| funcs.texImage2D = | ||
| reinterpret_cast<void (*)(GLenum, GLint, GLint, GLsizei, GLsizei, GLint, | ||
| GLenum, GLenum, const void*)>( | ||
| eglGetProcAddress("glTexImage2D")); | ||
| funcs.deleteTextures = reinterpret_cast<void (*)(GLsizei, const GLuint*)>( | ||
| eglGetProcAddress("glDeleteTextures")); | ||
| funcs.valid = true; | ||
| } | ||
| return &funcs; | ||
| } | ||
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| struct _FlExternalTextureGl { | ||
| GObject parent_instance; | ||
| GLuint gl_texture_id; | ||
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| FlTextureCallback callback; | ||
| void* user_data; | ||
| }; | ||
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| G_DEFINE_TYPE(FlExternalTextureGl, fl_external_texture_gl, G_TYPE_OBJECT) | ||
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| static void fl_external_texture_gl_dispose(GObject* object) { | ||
| FlExternalTextureGl* self = FL_EXTERNAL_TEXTURE_GL(object); | ||
| glFuncs* gl = load_gl_funcs(); | ||
| gl->deleteTextures(1, &self->gl_texture_id); | ||
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| G_OBJECT_CLASS(fl_external_texture_gl_parent_class)->dispose(object); | ||
| } | ||
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| static void fl_external_texture_gl_class_init(FlExternalTextureGlClass* klass) { | ||
| G_OBJECT_CLASS(klass)->dispose = fl_external_texture_gl_dispose; | ||
| } | ||
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| static void fl_external_texture_gl_init(FlExternalTextureGl* self) {} | ||
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| int64_t fl_external_texture_gl_texture_id(FlExternalTextureGl* self) { | ||
| g_return_val_if_fail(FL_IS_EXTERNAL_TEXTURE_GL(self), -1); | ||
| return reinterpret_cast<int64_t>(self); | ||
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| } | ||
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| gboolean fl_external_texture_gl_populate_texture( | ||
| FlExternalTextureGl* self, | ||
| size_t width, | ||
| size_t height, | ||
| FlutterOpenGLTexture* opengl_texture) { | ||
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| g_return_val_if_fail(FL_IS_EXTERNAL_TEXTURE_GL(self), FALSE); | ||
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| size_t real_width = width, real_height = height; | ||
| if (!fl_external_texture_gl_copy_pixel_buffer(self, &real_width, | ||
| &real_height)) { | ||
| return false; | ||
| } | ||
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| opengl_texture->target = GL_TEXTURE_2D; | ||
| opengl_texture->name = self->gl_texture_id; | ||
| opengl_texture->format = GL_RGBA8; | ||
| opengl_texture->destruction_callback = nullptr; | ||
| opengl_texture->user_data = nullptr; | ||
| opengl_texture->width = real_width; | ||
| opengl_texture->height = real_height; | ||
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| return TRUE; | ||
| } | ||
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| gboolean fl_external_texture_gl_copy_pixel_buffer(FlExternalTextureGl* self, | ||
| size_t* width, | ||
| size_t* height) { | ||
| g_return_val_if_fail(FL_IS_EXTERNAL_TEXTURE_GL(self), FALSE); | ||
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| const uint8_t* buffer; | ||
| if (self->callback(width, height, &buffer, self->user_data) != TRUE) { | ||
| return FALSE; | ||
| } | ||
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| glFuncs* gl = load_gl_funcs(); | ||
| if (self->gl_texture_id == 0) { | ||
| gl->genTextures(1, &self->gl_texture_id); | ||
| gl->bindTexture(GL_TEXTURE_2D, self->gl_texture_id); | ||
| gl->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER); | ||
| gl->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER); | ||
| gl->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); | ||
| gl->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); | ||
| } else { | ||
| gl->bindTexture(GL_TEXTURE_2D, self->gl_texture_id); | ||
| } | ||
| gl->texImage2D(GL_TEXTURE_2D, 0, GL_RGBA, *width, *height, 0, GL_RGBA, | ||
| GL_UNSIGNED_BYTE, buffer); | ||
| return TRUE; | ||
| } | ||
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| FlExternalTextureGl* fl_external_texture_gl_new( | ||
| FlTextureCallback texture_callback, | ||
| void* user_data) { | ||
| FlExternalTextureGl* self = FL_EXTERNAL_TEXTURE_GL( | ||
| g_object_new(fl_external_texture_gl_get_type(), nullptr)); | ||
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| self->callback = texture_callback; | ||
| self->user_data = user_data; | ||
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| return self; | ||
| } | ||
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