Initial commit

1 files changed, 35 insertions, 0 deletions

diff --git a/mozilla-bmo849632.patch b/mozilla-bmo849632.patch
new file mode 100644
index 000000000000..9de64b91ea06
--- /dev/null
+++ b/mozilla-bmo849632.patch
@@ -0,0 +1,35 @@
+# HG changeset patch
+# Parent  3de59fe1b8708c01e134ce698c4232b8a854f617
+Problem:  webGL sites are displayed in the wrong color (usually blue-ish)
+Solution: Problem is with skia once again. Output of webgl seems endian-correct, but skia only
+          knows how to deal with little endian.
+          So we swizzle the output of webgl after reading it from readpixels()
+Note:     This does not fix all webGL sites, but is a step in the right direction
+
+diff --git a/gfx/gl/GLContext.h b/gfx/gl/GLContext.h
+--- a/gfx/gl/GLContext.h
++++ b/gfx/gl/GLContext.h
+@@ -1548,16 +1548,23 @@ class GLContext : public GenericAtomicRe
+     AFTER_GL_CALL;
+   }
+ 
+   void raw_fReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
+                        GLenum format, GLenum type, GLvoid* pixels) {
+     BEFORE_GL_CALL;
+     mSymbols.fReadPixels(x, y, width, height, format, type, pixels);
+     OnSyncCall();
++#if MOZ_BIG_ENDIAN()
++    uint8_t* itr = (uint8_t*)pixels;
++    for (GLsizei i = 0; i < width * height; i++) {
++      NativeEndian::swapToLittleEndianInPlace((uint32_t*)itr, 1);
++      itr += 4;
++    }
++#endif
+     AFTER_GL_CALL;
+     mHeavyGLCallsSinceLastFlush = true;
+   }
+ 
+   void fReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
+                    GLenum format, GLenum type, GLvoid* pixels);
+ 
+  public: