[Piglit] [PATCH 04/18] shader_runner: Draw instanced rectangles using triangle strips instead of quads.

[Fabian Bieler]

This is usefull for core profile OpenGL contexts and geometry shaders.
---
 tests/shaders/shader_runner.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/shaders/shader_runner.c b/tests/shaders/shader_runner.c
index e022b90..874e76b 100644
--- a/tests/shaders/shader_runner.c
+++ b/tests/shaders/shader_runner.c
@@ -1454,11 +1454,11 @@ draw_instanced_rect(int primcount, float x, float y, 
float w, float h)
        verts[1][1] = y;
        verts[1][2] = 0.0;
        verts[1][3] = 1.0;
-       verts[2][0] = x + w;
+       verts[2][0] = x;
        verts[2][1] = y + h;
        verts[2][2] = 0.0;
        verts[2][3] = 1.0;
-       verts[3][0] = x;
+       verts[3][0] = x + w;
        verts[3][1] = y + h;
        verts[3][2] = 0.0;
        verts[3][3] = 1.0;
@@ -1466,7 +1466,7 @@ draw_instanced_rect(int primcount, float x, float y, 
float w, float h)
        glVertexPointer(4, GL_FLOAT, 0, verts);
        glEnableClientState(GL_VERTEX_ARRAY);
 
-       glDrawArraysInstanced(GL_QUADS, 0, 4, primcount);
+       glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, primcount);
 
        glDisableClientState(GL_VERTEX_ARRAY);
 }
-- 
1.8.1.2

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