[Piglit] [PATCH 1/4] implement new texture swizzle test
Brian Paul
brianp at vmware.com
Thu Apr 24 13:54:10 PDT 2014
The original one didn't test the GL_ONE and GL_ZERO terms and was
pretty compilicated. This tests all swizzle combinations and is
much simpler.
---
tests/all.py | 1 +
tests/spec/ext_texture_swizzle/CMakeLists.gl.txt | 1 +
tests/spec/ext_texture_swizzle/swizzle.c | 173 ++++++++++++++++++++++
3 files changed, 175 insertions(+)
create mode 100644 tests/spec/ext_texture_swizzle/swizzle.c
diff --git a/tests/all.py b/tests/all.py
index 080b432..0665567 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -2644,6 +2644,7 @@ for stage in ['vs', 'gs', 'fs']:
ext_texture_swizzle = {}
spec['EXT_texture_swizzle'] = ext_texture_swizzle
add_plain_test(ext_texture_swizzle, 'tex-swizzle')
+add_concurrent_test(ext_texture_swizzle, 'ext_texture_swizzle-swizzle')
ext_texture_swizzle['depth_texture_mode_and_swizzle'] = concurrent_test('depth_texture_mode_and_swizzle')
ext_texture_compression_latc = {}
diff --git a/tests/spec/ext_texture_swizzle/CMakeLists.gl.txt b/tests/spec/ext_texture_swizzle/CMakeLists.gl.txt
index 047a199..70ecb1c 100644
--- a/tests/spec/ext_texture_swizzle/CMakeLists.gl.txt
+++ b/tests/spec/ext_texture_swizzle/CMakeLists.gl.txt
@@ -10,5 +10,6 @@ link_libraries (
)
piglit_add_executable (depth_texture_mode_and_swizzle depth_texture_mode_and_swizzle.c)
+piglit_add_executable (ext_texture_swizzle-swizzle swizzle.c)
# vim: ft=cmake:
diff --git a/tests/spec/ext_texture_swizzle/swizzle.c b/tests/spec/ext_texture_swizzle/swizzle.c
new file mode 100644
index 0000000..ead6711
--- /dev/null
+++ b/tests/spec/ext_texture_swizzle/swizzle.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright © 2014 VMware, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * Test GL_EXT_texture_swizzle (including the _ZERO and _ONE terms).
+ * Brian Paul
+ * 24 April 2014
+ */
+
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_compat_version = 12;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+#define RED 0.2f
+#define GREEN 0.4f
+#define BLUE 0.6f
+#define ALPHA 0.8f
+
+
+static float
+get_component_color(GLenum swz)
+{
+ switch (swz) {
+ case GL_RED:
+ return RED;
+ case GL_GREEN:
+ return GREEN;
+ case GL_BLUE:
+ return BLUE;
+ case GL_ALPHA:
+ return ALPHA;
+ case GL_ZERO:
+ return 0.0f;
+ case GL_ONE:
+ return 1.0f;
+ default:
+ assert(!"Invalid swizzle term");
+ return 0.0;
+ }
+}
+
+
+static void
+get_expected_color(GLenum swz_r, GLenum swz_g, GLenum swz_b, GLenum swz_a,
+ float expected[4])
+{
+ expected[0] = get_component_color(swz_r);
+ expected[1] = get_component_color(swz_g);
+ expected[2] = get_component_color(swz_b);
+ expected[3] = get_component_color(swz_a);
+}
+
+
+static bool
+test_swizzle(GLenum swz_r, GLenum swz_g, GLenum swz_b, GLenum swz_a)
+{
+ float expected[4];
+ bool p;
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R_EXT, swz_r);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_G_EXT, swz_g);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B_EXT, swz_b);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A_EXT, swz_a);
+
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ return false;
+
+ get_expected_color(swz_r, swz_g, swz_b, swz_a, expected);
+
+ piglit_draw_rect_tex(-1.0, -1.0, 2.0, 2.0,
+ 0.0, 0.0, 1.0, 1.0);
+
+ p = piglit_probe_pixel_rgba(piglit_width/2, piglit_height/2, expected);
+
+ piglit_present_results();
+
+ return p;
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+ static const GLenum swizzle_terms[6] = {
+ GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, GL_ZERO, GL_ONE
+ };
+ bool pass = true;
+ int num_failures = 0;
+ int r, g, b, a;
+
+ for (r = 0; r < 6; r++) {
+ for (g = 0; g < 6; g++) {
+ for (b = 0; b < 6; b++) {
+ for (a = 0; a < 6; a++) {
+ bool p = test_swizzle(swizzle_terms[r],
+ swizzle_terms[g],
+ swizzle_terms[b],
+ swizzle_terms[a])
+ && pass;
+ if (!p) {
+ /* give up after 10 failures */
+ num_failures++;
+ if (num_failures >= 10)
+ return PIGLIT_FAIL;
+ }
+ pass = pass && p;
+ }
+ }
+ }
+ }
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+static void
+setup_texture(void)
+{
+ GLfloat image[8][8][4];
+ int i, j;
+ GLuint tex;
+
+ for (i = 0; i < 8; i++) {
+ for (j = 0; j < 8; j++) {
+ image[i][j][0] = RED;
+ image[i][j][1] = GREEN;
+ image[i][j][2] = BLUE;
+ image[i][j][3] = ALPHA;
+ }
+ }
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0, GL_RGBA, GL_FLOAT, image);
+ glEnable(GL_TEXTURE_2D);
+ glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_EXT_texture_swizzle");
+
+ setup_texture();
+}
--
1.7.10.4
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