Fix non-float framebuffers in EffectChainTester.

[movit] / blur_effect.cpp

diff --git a/blur_effect.cpp b/blur_effect.cpp
index b0327e2948307c0f5a92bd7de1dd537425fd93b5..903737a2e01127421a35aea355802c2a7180110d 100644 (file)
--- a/blur_effect.cpp
+++ b/blur_effect.cpp
@@ -108,7 +108,9 @@ SingleBlurPassEffect::SingleBlurPassEffect(BlurEffect *parent)
 
 string SingleBlurPassEffect::output_fragment_shader()
 {
-       return read_file("blur_effect.frag");
+       char buf[256];
+       sprintf(buf, "#define DIRECTION_VERTICAL %d\n", (direction == VERTICAL));
+       return buf + read_file("blur_effect.frag");
 }
 
 void SingleBlurPassEffect::set_gl_state(GLuint glsl_program_num, const string &prefix, unsigned *sampler_num)
@@ -159,13 +161,11 @@ void SingleBlurPassEffect::set_gl_state(GLuint glsl_program_num, const string &p
        //
        // We pack the parameters into a float4: The relative sample coordinates
        // in (x,y), and the weight in z. w is unused.
-       float samples[4 * (NUM_TAPS / 2 + 1)];
+       float samples[2 * (NUM_TAPS / 2 + 1)];
 
        // Center sample.
-       samples[4 * 0 + 0] = 0.0f;
-       samples[4 * 0 + 1] = 0.0f;
-       samples[4 * 0 + 2] = weight[0];
-       samples[4 * 0 + 3] = 0.0f;
+       samples[2 * 0 + 0] = 0.0f;
+       samples[2 * 0 + 1] = weight[0];
 
        // All other samples.
        for (unsigned i = 1; i < NUM_TAPS / 2 + 1; ++i) {
@@ -176,23 +176,18 @@ void SingleBlurPassEffect::set_gl_state(GLuint glsl_program_num, const string &p
                float offset, total_weight;
                combine_two_samples(w1, w2, &offset, &total_weight, NULL);
 
-               float x = 0.0f, y = 0.0f;
-
                if (direction == HORIZONTAL) {
-                       x = (base_pos + offset) / (float)width;
+                       samples[2 * i + 0] = (base_pos + offset) / (float)width;
                } else if (direction == VERTICAL) {
-                       y = (base_pos + offset) / (float)height;
+                       samples[2 * i + 0] = (base_pos + offset) / (float)height;
                } else {
                        assert(false);
                }
 
-               samples[4 * i + 0] = x;
-               samples[4 * i + 1] = y;
-               samples[4 * i + 2] = total_weight;
-               samples[4 * i + 3] = 0.0f;
+               samples[2 * i + 1] = total_weight;
        }
 
-       set_uniform_vec4_array(glsl_program_num, prefix, "samples", samples, NUM_TAPS / 2 + 1);
+       set_uniform_vec2_array(glsl_program_num, prefix, "samples", samples, NUM_TAPS / 2 + 1);
 }
 
 void SingleBlurPassEffect::clear_gl_state()