TYPE3

[iec.git] / src / type3_AndroidCloud / anbox-master / src / anbox / graphics / program_family.cpp

diff --git a/src/type3_AndroidCloud/anbox-master/src/anbox/graphics/program_family.cpp b/src/type3_AndroidCloud/anbox-master/src/anbox/graphics/program_family.cpp
new file mode 100644 (file)
index 0000000..4d85f47
--- /dev/null
+++ b/src/type3_AndroidCloud/anbox-master/src/anbox/graphics/program_family.cpp
@@ -0,0 +1,96 @@
+/*
+ * Copyright © 2015 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authored by: Daniel van Vugt <daniel.van.vugt@canonical.com>
+ */
+
+#include "anbox/graphics/program_family.h"
+
+#include "anbox/graphics/emugl/DispatchTables.h"
+
+#include <string>
+#include <stdexcept>
+
+namespace anbox {
+namespace graphics {
+void ProgramFamily::Shader::init(GLenum type, const GLchar* src) {
+  if (!id) {
+    id = s_gles2.glCreateShader(type);
+    if (id) {
+      s_gles2.glShaderSource(id, 1, &src, NULL);
+      s_gles2.glCompileShader(id);
+      GLint ok;
+      s_gles2.glGetShaderiv(id, GL_COMPILE_STATUS, &ok);
+      if (!ok) {
+        GLchar log[1024];
+        s_gles2.glGetShaderInfoLog(id, sizeof log - 1, NULL, log);
+        log[sizeof log - 1] = '\0';
+        s_gles2.glDeleteShader(id);
+        id = 0;
+        throw std::runtime_error(std::string("Compile failed: ") + log +
+                                 " for:\n" + src);
+      }
+    }
+  }
+}
+
+ProgramFamily::~ProgramFamily() noexcept {
+  // shader and program lifetimes are managed manually, so that we don't
+  // need any reference counting or to worry about how many copy constructions
+  // might have been followed by destructor calls during container resizes.
+
+  for (auto& p : program) {
+    if (p.second.id) s_gles2.glDeleteProgram(p.second.id);
+  }
+
+  for (auto& v : vshader) {
+    if (v.second.id) s_gles2.glDeleteShader(v.second.id);
+  }
+
+  for (auto& f : fshader) {
+    if (f.second.id) s_gles2.glDeleteShader(f.second.id);
+  }
+}
+
+GLuint ProgramFamily::add_program(const GLchar* const vshader_src,
+                                  const GLchar* const fshader_src) {
+  auto& v = vshader[vshader_src];
+  if (!v.id) v.init(GL_VERTEX_SHADER, vshader_src);
+
+  auto& f = fshader[fshader_src];
+  if (!f.id) f.init(GL_FRAGMENT_SHADER, fshader_src);
+
+  auto& p = program[{v.id, f.id}];
+  if (!p.id) {
+    p.id = s_gles2.glCreateProgram();
+    s_gles2.glAttachShader(p.id, v.id);
+    s_gles2.glAttachShader(p.id, f.id);
+    s_gles2.glLinkProgram(p.id);
+    GLint ok;
+    s_gles2.glGetProgramiv(p.id, GL_LINK_STATUS, &ok);
+    if (!ok) {
+      GLchar log[1024];
+      s_gles2.glGetProgramInfoLog(p.id, sizeof log - 1, NULL, log);
+      log[sizeof log - 1] = '\0';
+      s_gles2.glDeleteShader(p.id);
+      p.id = 0;
+      throw std::runtime_error(std::string("Link failed: ") + log);
+    }
+  }
+
+  return p.id;
+}
+}  // namespace graphics
+}  // namespace anbox