This code was all dead, since neither cairo-glesv2 nor the sample nested compositor ever made it to the Meson build. Signed-off-by: Daniel Stone <daniels@collabora.com>dev
Daniel Stone
2 years ago
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01c57eca43
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6bfbfb2e10
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/*
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* Copyright © 2013 Intel Corporation |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom the |
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* Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice (including the next |
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* paragraph) shall be included in all copies or substantial portions of the |
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* Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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* DEALINGS IN THE SOFTWARE. |
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*/ |
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#include "config.h" |
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#include <stdint.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <wayland-egl.h> |
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#include <wayland-cursor.h> |
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#include <GLES2/gl2.h> |
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#include <EGL/egl.h> |
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#include "shared/platform.h" |
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struct window; |
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struct seat; |
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struct nested_client { |
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struct wl_display *display; |
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struct wl_registry *registry; |
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struct wl_compositor *compositor; |
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EGLDisplay egl_display; |
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EGLContext egl_context; |
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EGLConfig egl_config; |
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EGLSurface egl_surface; |
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struct program *color_program; |
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GLuint vert, frag, program; |
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GLuint rotation; |
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GLuint pos; |
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GLuint col; |
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struct wl_surface *surface; |
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struct wl_egl_window *native; |
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int width, height; |
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}; |
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#define POS 0 |
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#define COL 1 |
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static GLuint |
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create_shader(const char *source, GLenum shader_type) |
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{ |
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GLuint shader; |
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GLint status; |
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shader = glCreateShader(shader_type); |
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if (shader == 0) |
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return 0; |
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glShaderSource(shader, 1, (const char **) &source, NULL); |
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glCompileShader(shader); |
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glGetShaderiv(shader, GL_COMPILE_STATUS, &status); |
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if (!status) { |
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char log[1000]; |
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GLsizei len; |
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glGetShaderInfoLog(shader, 1000, &len, log); |
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fprintf(stderr, "Error: compiling %s: %.*s\n", |
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shader_type == GL_VERTEX_SHADER ? "vertex" : "fragment", |
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len, log); |
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return 0; |
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} |
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return shader; |
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} |
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static void |
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create_program(struct nested_client *client, |
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const char *vert, const char *frag) |
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{ |
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GLint status; |
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client->vert = create_shader(vert, GL_VERTEX_SHADER); |
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client->frag = create_shader(frag, GL_FRAGMENT_SHADER); |
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client->program = glCreateProgram(); |
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glAttachShader(client->program, client->frag); |
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glAttachShader(client->program, client->vert); |
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glBindAttribLocation(client->program, POS, "pos"); |
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glBindAttribLocation(client->program, COL, "color"); |
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glLinkProgram(client->program); |
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glGetProgramiv(client->program, GL_LINK_STATUS, &status); |
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if (!status) { |
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char log[1000]; |
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GLsizei len; |
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glGetProgramInfoLog(client->program, 1000, &len, log); |
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fprintf(stderr, "Error: linking:\n%.*s\n", len, log); |
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exit(1); |
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} |
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client->rotation = |
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glGetUniformLocation(client->program, "rotation"); |
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} |
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static const char vertex_shader_text[] = |
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"uniform mat4 rotation;\n" |
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"attribute vec4 pos;\n" |
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"attribute vec4 color;\n" |
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"varying vec4 v_color;\n" |
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"void main() {\n" |
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" gl_Position = rotation * pos;\n" |
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" v_color = color;\n" |
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"}\n"; |
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static const char color_fragment_shader_text[] = |
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"precision mediump float;\n" |
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"varying vec4 v_color;\n" |
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"void main() {\n" |
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" gl_FragColor = v_color;\n" |
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"}\n"; |
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static void |
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render_triangle(struct nested_client *client, uint32_t time) |
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{ |
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static const GLfloat verts[3][2] = { |
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{ -0.5, -0.5 }, |
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{ 0.5, -0.5 }, |
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{ 0, 0.5 } |
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}; |
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static const GLfloat colors[3][3] = { |
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{ 1, 0, 0 }, |
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{ 0, 1, 0 }, |
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{ 0, 0, 1 } |
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}; |
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GLfloat angle; |
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GLfloat rotation[4][4] = { |
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{ 1, 0, 0, 0 }, |
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{ 0, 1, 0, 0 }, |
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{ 0, 0, 1, 0 }, |
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{ 0, 0, 0, 1 } |
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}; |
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static const int32_t speed_div = 5; |
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static uint32_t start_time = 0; |
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if (client->program == 0) |
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create_program(client, vertex_shader_text, |
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color_fragment_shader_text); |
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if (start_time == 0) |
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start_time = time; |
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angle = ((time - start_time) / speed_div) % 360 * M_PI / 180.0; |
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rotation[0][0] = cos(angle); |
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rotation[0][2] = sin(angle); |
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rotation[2][0] = -sin(angle); |
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rotation[2][2] = cos(angle); |
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glClearColor(0.4, 0.4, 0.4, 1.0); |
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glClear(GL_COLOR_BUFFER_BIT); |
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glUseProgram(client->program); |
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glViewport(0, 0, client->width, client->height); |
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glUniformMatrix4fv(client->rotation, 1, GL_FALSE, |
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(GLfloat *) rotation); |
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glVertexAttribPointer(POS, 2, GL_FLOAT, GL_FALSE, 0, verts); |
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glVertexAttribPointer(COL, 3, GL_FLOAT, GL_FALSE, 0, colors); |
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glEnableVertexAttribArray(POS); |
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glEnableVertexAttribArray(COL); |
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glDrawArrays(GL_TRIANGLES, 0, 3); |
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glDisableVertexAttribArray(POS); |
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glDisableVertexAttribArray(COL); |
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glFlush(); |
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} |
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static void |
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frame_callback(void *data, struct wl_callback *callback, uint32_t time); |
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static const struct wl_callback_listener frame_listener = { |
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frame_callback |
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}; |
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static void |
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frame_callback(void *data, struct wl_callback *callback, uint32_t time) |
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{ |
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struct nested_client *client = data; |
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if (callback) |
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wl_callback_destroy(callback); |
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callback = wl_surface_frame(client->surface); |
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wl_callback_add_listener(callback, &frame_listener, client); |
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render_triangle(client, time); |
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eglSwapBuffers(client->egl_display, client->egl_surface); |
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} |
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static void |
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registry_handle_global(void *data, struct wl_registry *registry, |
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uint32_t name, const char *interface, uint32_t version) |
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{ |
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struct nested_client *client = data; |
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if (strcmp(interface, "wl_compositor") == 0) { |
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client->compositor = |
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wl_registry_bind(registry, name, |
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&wl_compositor_interface, 1); |
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} |
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} |
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static void |
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registry_handle_global_remove(void *data, struct wl_registry *registry, |
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uint32_t name) |
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{ |
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} |
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static const struct wl_registry_listener registry_listener = { |
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registry_handle_global, |
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registry_handle_global_remove |
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}; |
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static struct nested_client * |
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nested_client_create(void) |
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{ |
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static const EGLint context_attribs[] = { |
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EGL_CONTEXT_CLIENT_VERSION, 2, |
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EGL_NONE |
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}; |
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static const EGLint config_attribs[] = { |
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT, |
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EGL_RED_SIZE, 1, |
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EGL_GREEN_SIZE, 1, |
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EGL_BLUE_SIZE, 1, |
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EGL_ALPHA_SIZE, 1, |
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
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EGL_NONE |
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}; |
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EGLint major, minor, n; |
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EGLBoolean ret; |
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struct nested_client *client; |
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client = malloc(sizeof *client); |
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if (client == NULL) |
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return NULL; |
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client->width = 250; |
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client->height = 250; |
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client->display = wl_display_connect(NULL); |
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client->registry = wl_display_get_registry(client->display); |
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wl_registry_add_listener(client->registry, |
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®istry_listener, client); |
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/* get globals */ |
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wl_display_roundtrip(client->display); |
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client->egl_display = |
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weston_platform_get_egl_display(EGL_PLATFORM_WAYLAND_KHR, |
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client->display, NULL); |
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if (client->egl_display == NULL) |
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return NULL; |
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ret = eglInitialize(client->egl_display, &major, &minor); |
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if (!ret) |
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return NULL; |
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ret = eglBindAPI(EGL_OPENGL_ES_API); |
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if (!ret) |
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return NULL; |
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ret = eglChooseConfig(client->egl_display, config_attribs, |
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&client->egl_config, 1, &n); |
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if (!ret || n != 1) |
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return NULL; |
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client->egl_context = eglCreateContext(client->egl_display, |
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client->egl_config, |
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EGL_NO_CONTEXT, |
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context_attribs); |
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if (!client->egl_context) |
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return NULL; |
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client->surface = wl_compositor_create_surface(client->compositor); |
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client->native = wl_egl_window_create(client->surface, |
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client->width, client->height); |
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client->egl_surface = weston_platform_create_egl_surface(client->egl_display, |
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client->egl_config, |
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client->native, NULL); |
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eglMakeCurrent(client->egl_display, client->egl_surface, |
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client->egl_surface, client->egl_context); |
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wl_egl_window_resize(client->native, |
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client->width, client->height, 0, 0); |
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frame_callback(client, NULL, 0); |
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return client; |
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} |
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static void |
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nested_client_destroy(struct nested_client *client) |
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{ |
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eglMakeCurrent(client->egl_display, |
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EGL_NO_SURFACE, EGL_NO_SURFACE, |
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EGL_NO_CONTEXT); |
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weston_platform_destroy_egl_surface(client->egl_display, |
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client->egl_surface); |
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wl_egl_window_destroy(client->native); |
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wl_surface_destroy(client->surface); |
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if (client->compositor) |
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wl_compositor_destroy(client->compositor); |
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wl_registry_destroy(client->registry); |
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eglTerminate(client->egl_display); |
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eglReleaseThread(); |
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wl_display_flush(client->display); |
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wl_display_disconnect(client->display); |
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} |
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int |
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main(int argc, char **argv) |
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{ |
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struct nested_client *client; |
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int ret = 0; |
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if (getenv("WAYLAND_SOCKET") == NULL) { |
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fprintf(stderr, |
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"must be run by nested, don't run standalone\n"); |
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return EXIT_FAILURE; |
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} |
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client = nested_client_create(); |
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if (client == NULL) |
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return EXIT_FAILURE; |
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while (ret != -1) |
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ret = wl_display_dispatch(client->display); |
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nested_client_destroy(client); |
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return 0; |
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} |
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