Use glGetStringi to get extensions when available.
Review URL: https://codereview.chromium.org/12328111
git-svn-id: http://skia.googlecode.com/svn/trunk@7872 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGLNoOpInterface.cpp b/src/gpu/gl/GrGLNoOpInterface.cpp
index 5dd6e66..e830ee1 100644
--- a/src/gpu/gl/GrGLNoOpInterface.cpp
+++ b/src/gpu/gl/GrGLNoOpInterface.cpp
@@ -6,6 +6,8 @@
*/
#include "GrGLNoOpInterface.h"
+#include "SkString.h"
+#include "SkThread.h"
// the OpenGLES 2.0 spec says this must be >= 128
static const GrGLint kDefaultMaxVertexUniformVectors = 128;
@@ -19,6 +21,33 @@
// the OpenGLES 2.0 spec says this must be >= 8
static const GrGLint kDefaultMaxVaryingVectors = 8;
+static const char* kExtensions[] = {
+ "GL_ARB_framebuffer_object",
+ "GL_ARB_blend_func_extended",
+ "GL_ARB_timer_query",
+ "GL_ARB_draw_buffers",
+ "GL_ARB_occlusion_query",
+ "GL_EXT_blend_color",
+ "GL_EXT_stencil_wrap"
+};
+
+namespace {
+const GrGLubyte* combined_extensions_string() {
+ static SkString gExtString;
+ static SkMutex gMutex;
+ gMutex.acquire();
+ if (0 == gExtString.size()) {
+ for (size_t i = 0; i < GR_ARRAY_COUNT(kExtensions) - 1; ++i) {
+ gExtString.append(kExtensions[i]);
+ gExtString.append(" ");
+ }
+ gExtString.append(kExtensions[GR_ARRAY_COUNT(kExtensions) - 1]);
+ }
+ gMutex.release();
+ return (const GrGLubyte*) gExtString.c_str();
+}
+}
+
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLBlendColor(GrGLclampf red,
GrGLclampf green,
GrGLclampf blue,
@@ -53,9 +82,9 @@
}
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLColorMask(GrGLboolean red,
- GrGLboolean green,
- GrGLboolean blue,
- GrGLboolean alpha) {
+ GrGLboolean green,
+ GrGLboolean blue,
+ GrGLboolean alpha) {
}
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLCompileShader(GrGLuint shader) {
@@ -132,9 +161,9 @@
}
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLScissor(GrGLint x,
- GrGLint y,
- GrGLsizei width,
- GrGLsizei height) {
+ GrGLint y,
+ GrGLsizei width,
+ GrGLsizei height) {
}
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLShaderSource(GrGLuint shader,
@@ -318,15 +347,15 @@
}
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLViewport(GrGLint x,
- GrGLint y,
- GrGLsizei width,
- GrGLsizei height) {
+ GrGLint y,
+ GrGLsizei width,
+ GrGLsizei height) {
}
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLGetFramebufferAttachmentParameteriv(GrGLenum target,
- GrGLenum attachment,
- GrGLenum pname,
- GrGLint* params) {
+ GrGLenum attachment,
+ GrGLenum pname,
+ GrGLint* params) {
}
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLGetRenderbufferParameteriv(GrGLenum target,
@@ -393,6 +422,9 @@
// TODO: remove from Ganesh the #defines for gets we don't use.
// We would like to minimize gets overall due to performance issues
switch (pname) {
+ case GR_GL_CONTEXT_PROFILE_MASK:
+ *params = GR_GL_CONTEXT_COMPATIBILITY_PROFILE_BIT;
+ break;
case GR_GL_STENCIL_BITS:
*params = 8;
break;
@@ -440,6 +472,9 @@
case GR_GL_MAX_VARYING_VECTORS:
*params = kDefaultMaxVaryingVectors;
break;
+ case GR_GL_NUM_EXTENSIONS:
+ *params = GR_ARRAY_COUNT(kExtensions);
+ break;
default:
GrCrash("Unexpected pname to GetIntegerv");
}
@@ -448,7 +483,7 @@
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLGetInfoLog(GrGLuint program,
GrGLsizei bufsize,
GrGLsizei* length,
- char* infolog) {
+ char* infolog) {
if (length) {
*length = 0;
}
@@ -534,7 +569,7 @@
const GrGLubyte* GR_GL_FUNCTION_TYPE noOpGLGetString(GrGLenum name) {
switch (name) {
case GR_GL_EXTENSIONS:
- return (const GrGLubyte*)"GL_ARB_framebuffer_object GL_ARB_blend_func_extended GL_ARB_timer_query GL_ARB_draw_buffers GL_ARB_occlusion_query GL_EXT_blend_color GL_EXT_stencil_wrap";
+ return combined_extensions_string();
case GR_GL_VERSION:
return (const GrGLubyte*)"4.0 Debug GL";
case GR_GL_SHADING_LANGUAGE_VERSION:
@@ -544,11 +579,25 @@
case GR_GL_RENDERER:
return (const GrGLubyte*)"The Debug (Non-)Renderer";
default:
- GrCrash("Unexpected name to GetString");
+ GrCrash("Unexpected name passed to GetString");
return NULL;
}
}
+const GrGLubyte* GR_GL_FUNCTION_TYPE noOpGLGetStringi(GrGLenum name, GrGLuint i) {
+ switch (name) {
+ case GR_GL_EXTENSIONS:
+ if (static_cast<size_t>(i) <= GR_ARRAY_COUNT(kExtensions)) {
+ return (const GrGLubyte*) kExtensions[i];
+ } else {
+ return NULL;
+ }
+ default:
+ GrCrash("Unexpected name passed to GetStringi");
+ return NULL;
+ }
+}
+
GrGLvoid GR_GL_FUNCTION_TYPE noOpGLGetTexLevelParameteriv(GrGLenum target,
GrGLint level,
GrGLenum pname,
@@ -558,8 +607,7 @@
GrCrash("Should never query texture parameters.");
}
-GrGLint GR_GL_FUNCTION_TYPE noOpGLGetUniformLocation(GrGLuint program,
- const char* name) {
+GrGLint GR_GL_FUNCTION_TYPE noOpGLGetUniformLocation(GrGLuint program, const char* name) {
static int gUniLocation = 0;
return ++gUniLocation;
}