1 files changed, 267 insertions, 0 deletions

diff --git a/xbmc/utils/GLUtils.cpp b/xbmc/utils/GLUtils.cpp
new file mode 100644
index 0000000..be94eb5
--- /dev/null
+++ b/xbmc/utils/GLUtils.cpp
@@ -0,0 +1,267 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#include "GLUtils.h"
+
+#include "ServiceBroker.h"
+#include "log.h"
+#include "rendering/MatrixGL.h"
+#include "rendering/RenderSystem.h"
+#include "settings/AdvancedSettings.h"
+#include "settings/SettingsComponent.h"
+#include "utils/StringUtils.h"
+
+#include <map>
+#include <utility>
+
+namespace
+{
+
+#define X(VAL) std::make_pair(VAL, #VAL)
+std::map<GLenum, const char*> glErrors =
+{
+  // please keep attributes in accordance to:
+  // https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glGetError.xhtml
+  X(GL_NO_ERROR),
+  X(GL_INVALID_ENUM),
+  X(GL_INVALID_VALUE),
+  X(GL_INVALID_OPERATION),
+  X(GL_INVALID_FRAMEBUFFER_OPERATION),
+  X(GL_OUT_OF_MEMORY),
+#if defined(HAS_GL)
+  X(GL_STACK_UNDERFLOW),
+  X(GL_STACK_OVERFLOW),
+#endif
+};
+
+std::map<GLenum, const char*> glErrorSource =
+{
+//! @todo remove TARGET_RASPBERRY_PI when Raspberry Pi updates their GL headers
+#if defined(HAS_GLES) && defined(TARGET_LINUX) && !defined(TARGET_RASPBERRY_PI)
+  X(GL_DEBUG_SOURCE_API_KHR),
+  X(GL_DEBUG_SOURCE_WINDOW_SYSTEM_KHR),
+  X(GL_DEBUG_SOURCE_SHADER_COMPILER_KHR),
+  X(GL_DEBUG_SOURCE_THIRD_PARTY_KHR),
+  X(GL_DEBUG_SOURCE_APPLICATION_KHR),
+  X(GL_DEBUG_SOURCE_OTHER_KHR),
+#endif
+};
+
+std::map<GLenum, const char*> glErrorType =
+{
+//! @todo remove TARGET_RASPBERRY_PI when Raspberry Pi updates their GL headers
+#if defined(HAS_GLES) && defined(TARGET_LINUX) && !defined(TARGET_RASPBERRY_PI)
+  X(GL_DEBUG_TYPE_ERROR_KHR),
+  X(GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_KHR),
+  X(GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_KHR),
+  X(GL_DEBUG_TYPE_PORTABILITY_KHR),
+  X(GL_DEBUG_TYPE_PERFORMANCE_KHR),
+  X(GL_DEBUG_TYPE_OTHER_KHR),
+  X(GL_DEBUG_TYPE_MARKER_KHR),
+#endif
+};
+
+std::map<GLenum, const char*> glErrorSeverity =
+{
+//! @todo remove TARGET_RASPBERRY_PI when Raspberry Pi updates their GL headers
+#if defined(HAS_GLES) && defined(TARGET_LINUX) && !defined(TARGET_RASPBERRY_PI)
+  X(GL_DEBUG_SEVERITY_HIGH_KHR),
+  X(GL_DEBUG_SEVERITY_MEDIUM_KHR),
+  X(GL_DEBUG_SEVERITY_LOW_KHR),
+  X(GL_DEBUG_SEVERITY_NOTIFICATION_KHR),
+#endif
+};
+#undef X
+
+} // namespace
+
+void KODI::UTILS::GL::GlErrorCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const void* userParam)
+{
+  std::string sourceStr;
+  std::string typeStr;
+  std::string severityStr;
+
+  auto glSource = glErrorSource.find(source);
+  if (glSource != glErrorSource.end())
+  {
+    sourceStr = glSource->second;
+  }
+
+  auto glType = glErrorType.find(type);
+  if (glType != glErrorType.end())
+  {
+    typeStr = glType->second;
+  }
+
+  auto glSeverity = glErrorSeverity.find(severity);
+  if (glSeverity != glErrorSeverity.end())
+  {
+    severityStr = glSeverity->second;
+  }
+
+  CLog::Log(LOGDEBUG, "OpenGL(ES) Debugging:\nSource: {}\nType: {}\nSeverity: {}\nID: {}\nMessage: {}", sourceStr, typeStr, severityStr, id, message);
+}
+
+static void PrintMatrix(const GLfloat* matrix, std::string matrixName)
+{
+  CLog::Log(LOGDEBUG, "{}:\n{:> 10.3f} {:> 10.3f} {:> 10.3f} {:> 10.3f}\n{:> 10.3f} {:> 10.3f} {:> 10.3f} {:> 10.3f}\n{:> 10.3f} {:> 10.3f} {:> 10.3f} {:> 10.3f}\n{:> 10.3f} {:> 10.3f} {:> 10.3f} {:> 10.3f}",
+                      matrixName,
+                      matrix[0], matrix[1], matrix[2], matrix[3],
+                      matrix[4], matrix[5], matrix[6], matrix[7],
+                      matrix[8], matrix[9], matrix[10], matrix[11],
+                      matrix[12], matrix[13], matrix[14], matrix[15]);
+}
+
+void _VerifyGLState(const char* szfile, const char* szfunction, int lineno)
+{
+  GLenum err = glGetError();
+  if (err == GL_NO_ERROR)
+  {
+    return;
+  }
+
+  auto error = glErrors.find(err);
+  if (error != glErrors.end())
+  {
+    CLog::Log(LOGERROR, "GL(ES) ERROR: {}", error->second);
+  }
+
+  if (szfile && szfunction)
+  {
+    CLog::Log(LOGERROR, "In file: {} function: {} line: {}", szfile, szfunction, lineno);
+  }
+
+  GLboolean scissors;
+  glGetBooleanv(GL_SCISSOR_TEST, &scissors);
+  CLog::Log(LOGDEBUG, "Scissor test enabled: {}", scissors == GL_TRUE ? "True" : "False");
+
+  GLfloat matrix[16];
+  glGetFloatv(GL_SCISSOR_BOX, matrix);
+  CLog::Log(LOGDEBUG, "Scissor box: {}, {}, {}, {}", matrix[0], matrix[1], matrix[2], matrix[3]);
+
+  glGetFloatv(GL_VIEWPORT, matrix);
+  CLog::Log(LOGDEBUG, "Viewport: {}, {}, {}, {}", matrix[0], matrix[1], matrix[2], matrix[3]);
+
+  PrintMatrix(glMatrixProject.Get(), "Projection Matrix");
+  PrintMatrix(glMatrixModview.Get(), "Modelview Matrix");
+}
+
+void LogGraphicsInfo()
+{
+#if defined(HAS_GL) || defined(HAS_GLES)
+  const GLubyte *s;
+
+  s = glGetString(GL_VENDOR);
+  if (s)
+    CLog::Log(LOGINFO, "GL_VENDOR = %s", s);
+  else
+    CLog::Log(LOGINFO, "GL_VENDOR = NULL");
+
+  s = glGetString(GL_RENDERER);
+  if (s)
+    CLog::Log(LOGINFO, "GL_RENDERER = %s", s);
+  else
+    CLog::Log(LOGINFO, "GL_RENDERER = NULL");
+
+  s = glGetString(GL_VERSION);
+  if (s)
+    CLog::Log(LOGINFO, "GL_VERSION = %s", s);
+  else
+    CLog::Log(LOGINFO, "GL_VERSION = NULL");
+
+  s = glGetString(GL_SHADING_LANGUAGE_VERSION);
+  if (s)
+    CLog::Log(LOGINFO, "GL_SHADING_LANGUAGE_VERSION = %s", s);
+  else
+    CLog::Log(LOGINFO, "GL_SHADING_LANGUAGE_VERSION = NULL");
+
+    //GL_NVX_gpu_memory_info extension
+#define GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX          0x9047
+#define GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX    0x9048
+#define GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX  0x9049
+#define GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX            0x904A
+#define GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX            0x904B
+
+  if (CServiceBroker::GetRenderSystem()->IsExtSupported("GL_NVX_gpu_memory_info"))
+  {
+    GLint mem = 0;
+
+    glGetIntegerv(GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &mem);
+    CLog::Log(LOGINFO, "GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX = %i", mem);
+
+    //this seems to be the amount of ram on the videocard
+    glGetIntegerv(GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &mem);
+    CLog::Log(LOGINFO, "GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX = %i", mem);
+  }
+
+  std::string extensions;
+#if defined(HAS_GL)
+  unsigned int renderVersionMajor, renderVersionMinor;
+  CServiceBroker::GetRenderSystem()->GetRenderVersion(renderVersionMajor, renderVersionMinor);
+  if (renderVersionMajor > 3 ||
+      (renderVersionMajor == 3 && renderVersionMinor >= 2))
+  {
+    GLint n;
+    glGetIntegerv(GL_NUM_EXTENSIONS, &n);
+    if (n > 0)
+    {
+      GLint i;
+      for (i = 0; i < n; i++)
+      {
+        extensions += (const char*)glGetStringi(GL_EXTENSIONS, i);
+        extensions += " ";
+      }
+    }
+  }
+  else
+#endif
+  {
+    extensions += (const char*) glGetString(GL_EXTENSIONS);
+  }
+
+  if (!extensions.empty())
+    CLog::Log(LOGINFO, "GL_EXTENSIONS = %s", extensions.c_str());
+  else
+    CLog::Log(LOGINFO, "GL_EXTENSIONS = NULL");
+
+
+#else /* !HAS_GL */
+  CLog::Log(LOGINFO, "Please define LogGraphicsInfo for your chosen graphics library");
+#endif /* !HAS_GL */
+}
+
+int glFormatElementByteCount(GLenum format)
+{
+  switch (format)
+  {
+#ifdef HAS_GL
+  case GL_BGRA:
+    return 4;
+  case GL_RED:
+    return 1;
+  case GL_GREEN:
+    return 1;
+  case GL_RG:
+    return 2;
+  case GL_BGR:
+    return 3;
+#endif
+  case GL_RGBA:
+    return 4;
+  case GL_RGB:
+    return 3;
+  case GL_LUMINANCE_ALPHA:
+    return 2;
+  case GL_LUMINANCE:
+  case GL_ALPHA:
+    return 1;
+  default:
+    CLog::Log(LOGERROR, "glFormatElementByteCount - Unknown format %u", format);
+    return 1;
+  }
+}