Move function decls and macros out of public headers that are meant for internal use.
git-svn-id: http://skia.googlecode.com/svn/trunk@3849 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGLUtil.cpp b/src/gpu/gl/GrGLUtil.cpp
index 23ed5b4..c11c8c0 100644
--- a/src/gpu/gl/GrGLUtil.cpp
+++ b/src/gpu/gl/GrGLUtil.cpp
@@ -7,8 +7,7 @@
*/
-#include "gl/GrGLConfig.h"
-#include "gl/GrGLInterface.h"
+#include "GrGLUtil.h"
void GrGLClearErr(const GrGLInterface* gl) {
while (GR_GL_NO_ERROR != gl->fGetError()) {}
@@ -40,3 +39,133 @@
bool gCheckErrorGL = !!(GR_GL_CHECK_ERROR_START);
#endif
+///////////////////////////////////////////////////////////////////////////////
+
+GrGLBinding GrGLGetBindingInUseFromString(const char* versionString) {
+ if (NULL == versionString) {
+ GrAssert(!"NULL GL version string.");
+ return kNone_GrGLBinding;
+ }
+
+ int major, minor;
+
+ // check for desktop
+ int n = sscanf(versionString, "%d.%d", &major, &minor);
+ if (2 == n) {
+ return kDesktop_GrGLBinding;
+ }
+
+ // check for ES 1
+ char profile[2];
+ n = sscanf(versionString, "OpenGL ES-%c%c %d.%d", profile, profile+1,
+ &major, &minor);
+ if (4 == n) {
+ // we no longer support ES1.
+ return kNone_GrGLBinding;
+ }
+
+ // check for ES2
+ n = sscanf(versionString, "OpenGL ES %d.%d", &major, &minor);
+ if (2 == n) {
+ return kES2_GrGLBinding;
+ }
+ return kNone_GrGLBinding;
+}
+
+GrGLVersion GrGLGetVersionFromString(const char* versionString) {
+ if (NULL == versionString) {
+ GrAssert(!"NULL GL version string.");
+ return 0;
+ }
+
+ int major, minor;
+
+ int n = sscanf(versionString, "%d.%d", &major, &minor);
+ if (2 == n) {
+ return GR_GL_VER(major, minor);
+ }
+
+ char profile[2];
+ n = sscanf(versionString, "OpenGL ES-%c%c %d.%d", profile, profile+1,
+ &major, &minor);
+ if (4 == n) {
+ return GR_GL_VER(major, minor);
+ }
+
+ n = sscanf(versionString, "OpenGL ES %d.%d", &major, &minor);
+ if (2 == n) {
+ return GR_GL_VER(major, minor);
+ }
+
+ return 0;
+}
+
+GrGLSLVersion GrGLGetGLSLVersionFromString(const char* versionString) {
+ if (NULL == versionString) {
+ GrAssert(!"NULL GLSL version string.");
+ return 0;
+ }
+
+ int major, minor;
+
+ int n = sscanf(versionString, "%d.%d", &major, &minor);
+ if (2 == n) {
+ return GR_GLSL_VER(major, minor);
+ }
+
+ n = sscanf(versionString, "OpenGL ES GLSL ES %d.%d", &major, &minor);
+ if (2 == n) {
+ return GR_GLSL_VER(major, minor);
+ }
+
+#ifdef SK_BUILD_FOR_ANDROID
+ // android hack until the gpu vender updates their drivers
+ n = sscanf(versionString, "OpenGL ES GLSL %d.%d", &major, &minor);
+ if (2 == n) {
+ return GR_GLSL_VER(major, minor);
+ }
+#endif
+
+ return 0;
+}
+
+bool GrGLHasExtensionFromString(const char* ext, const char* extensionString) {
+ int extLength = strlen(ext);
+
+ while (true) {
+ int n = strcspn(extensionString, " ");
+ if (n == extLength && 0 == strncmp(ext, extensionString, n)) {
+ return true;
+ }
+ if (0 == extensionString[n]) {
+ return false;
+ }
+ extensionString += n+1;
+ }
+
+ return false;
+}
+
+bool GrGLHasExtension(const GrGLInterface* gl, const char* ext) {
+ const GrGLubyte* glstr;
+ GR_GL_CALL_RET(gl, glstr, GetString(GR_GL_EXTENSIONS));
+ return GrGLHasExtensionFromString(ext, (const char*) glstr);
+}
+
+GrGLBinding GrGLGetBindingInUse(const GrGLInterface* gl) {
+ const GrGLubyte* v;
+ GR_GL_CALL_RET(gl, v, GetString(GR_GL_VERSION));
+ return GrGLGetBindingInUseFromString((const char*) v);
+}
+
+GrGLVersion GrGLGetVersion(const GrGLInterface* gl) {
+ const GrGLubyte* v;
+ GR_GL_CALL_RET(gl, v, GetString(GR_GL_VERSION));
+ return GrGLGetVersionFromString((const char*) v);
+}
+
+GrGLSLVersion GrGLGetGLSLVersion(const GrGLInterface* gl) {
+ const GrGLubyte* v;
+ GR_GL_CALL_RET(gl, v, GetString(GR_GL_SHADING_LANGUAGE_VERSION));
+ return GrGLGetGLSLVersionFromString((const char*) v);
+}