[cairo] [PATCH 1/2] gl: Simplify GL wrap parameter setting code

[Henry (Yu) Song - SISA]

Hi, Alex

I could not apply your 1/2. 2/2 patches on latest snapshot.  Would you please check them?  I modified your 1/2 patch a little and that applies fine, but 2/2 patch has too much difference, hard to manually adjust.  

Thanks

Henry

________________________________________
From: cairo-bounces+hsong=sisa.samsung.com at cairographics.org [cairo-bounces+hsong=sisa.samsung.com at cairographics.org] on behalf of alexandros.frantzis at linaro.org [alexandros.frantzis at linaro.org]
Sent: Thursday, May 03, 2012 3:03 AM
To: cairo at cairographics.org
Subject: [cairo] [PATCH 1/2] gl: Simplify GL wrap parameter setting code

From: Alexandros Frantzis <alexandros.frantzis at linaro.org>

---
 src/cairo-gl-composite.c |   29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/src/cairo-gl-composite.c b/src/cairo-gl-composite.c
index bd7c675..633d229 100644
--- a/src/cairo-gl-composite.c
+++ b/src/cairo-gl-composite.c
@@ -153,32 +153,33 @@ _cairo_gl_texture_set_extend (cairo_gl_context_t *ctx,
                               GLuint              target,
                               cairo_extend_t      extend)
 {
+    GLint wrap_mode;
     assert (! _cairo_gl_device_requires_power_of_two_textures (&ctx->base) ||
             (extend != CAIRO_EXTEND_REPEAT && extend != CAIRO_EXTEND_REFLECT));

     switch (extend) {
     case CAIRO_EXTEND_NONE:
-       if (ctx->gl_flavor == CAIRO_GL_FLAVOR_ES) {
-           glTexParameteri (target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-           glTexParameteri (target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-       }
-       else {
-           glTexParameteri (target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
-           glTexParameteri (target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
-       }
+       if (ctx->gl_flavor == CAIRO_GL_FLAVOR_ES)
+           wrap_mode = GL_CLAMP_TO_EDGE;
+       else
+           wrap_mode = GL_CLAMP_TO_BORDER;
        break;
     case CAIRO_EXTEND_PAD:
-       glTexParameteri (target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-       glTexParameteri (target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+       wrap_mode = GL_CLAMP_TO_EDGE;
        break;
     case CAIRO_EXTEND_REPEAT:
-       glTexParameteri (target, GL_TEXTURE_WRAP_S, GL_REPEAT);
-       glTexParameteri (target, GL_TEXTURE_WRAP_T, GL_REPEAT);
+       wrap_mode = GL_REPEAT;
        break;
     case CAIRO_EXTEND_REFLECT:
-       glTexParameteri (target, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
-       glTexParameteri (target, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
+       wrap_mode = GL_MIRRORED_REPEAT;
        break;
+    default:
+       wrap_mode = 0;
+    }
+
+    if (likely (wrap_mode)) {
+       glTexParameteri (target, GL_TEXTURE_WRAP_S, wrap_mode);
+       glTexParameteri (target, GL_TEXTURE_WRAP_T, wrap_mode);
     }
 }

--
1.7.9.5

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