32 bpp floating point textures
This is VERY preliminary, but it was sufficient for me to get 32 bit floating point textures in a sample app
BUG=skia:
R=bsalomon@chromium.org, bsalomon@google.com
Author: joshualitt@chromium.org
Review URL: https://codereview.chromium.org/359803003
diff --git a/src/gpu/gl/GrGLDefines.h b/src/gpu/gl/GrGLDefines.h
index 1e8d7cc..77b7a15 100644
--- a/src/gpu/gl/GrGLDefines.h
+++ b/src/gpu/gl/GrGLDefines.h
@@ -731,6 +731,7 @@
#define GR_GL_RGB5_A1 0x8057
#define GR_GL_RGB565 0x8D62
#define GR_GL_RGBA8 0x8058
+#define GR_GL_RGBA32F 0x8814
#define GR_GL_RGB8 0x8051
#define GR_GL_BGRA8 0x93A1
#define GR_GL_SRGB 0x8C40