[Piglit] [PATCH] rendermode-feedback: Simple test of glFeedBackBuffer() types.
Eric Anholt
eric at anholt.net
Sun Jul 10 11:54:08 PDT 2011
---
Looking at https://bugs.freedesktop.org/show_bug.cgi?id=38771, I
realized we had no glRenderMode testing in piglit. Here's a simple
test for feedback, that didn't catch any problems.
tests/all.tests | 1 +
tests/spec/CMakeLists.txt | 1 +
tests/spec/gl-1.2/rendermode-feedback.c | 183 +++++++++++++++++++++++++++++++
3 files changed, 185 insertions(+), 0 deletions(-)
create mode 100644 tests/spec/gl-1.2/rendermode-feedback.c
diff --git a/tests/all.tests b/tests/all.tests
index 1e43d27..52e98c9 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -672,6 +672,7 @@ gl12 = Group()
spec['!OpenGL 1.2'] = gl12
add_texwrap_test1(gl12, '3D')
add_texwrap_test2(gl12, '3D', 'proj')
+add_plain_test(gl12, 'rendermode-feedback')
gl20 = Group()
spec['!OpenGL 2.0'] = gl20
diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index 52dfcf4..b49d641 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -16,3 +16,4 @@ add_subdirectory (nv_texture_barrier)
add_subdirectory (arb_draw_elements_base_vertex)
add_subdirectory (arb_vertex_buffer_object)
add_subdirectory (arb_vertex_program)
+add_subdirectory (gl-1.2)
diff --git a/tests/spec/gl-1.2/rendermode-feedback.c b/tests/spec/gl-1.2/rendermode-feedback.c
new file mode 100644
index 0000000..b426d31
--- /dev/null
+++ b/tests/spec/gl-1.2/rendermode-feedback.c
@@ -0,0 +1,183 @@
+/* Copyright © 2011 Intel Corporation
+ *
+ * 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.
+ */
+
+#include "piglit-util.h"
+
+/**
+ * @file rendermode-feedback.c
+ *
+ * Tests that glRenderMode(GL_FEEDBACK) rendering.
+ */
+
+int piglit_width = 32;
+int piglit_height = 32;
+int piglit_window_mode = GLUT_RGB;
+
+static float vertex_array[] = {
+ 1.0, 2.0, 0.4, 1.0,
+ 3.0, 4.0, 0.6, 1.0,
+ 5.0, 6.0, 0.8, 1.0,
+};
+
+static float color_array[] = {
+ 0.01, 0.02, 0.03, 0.04,
+ 0.05, 0.06, 0.07, 0.08,
+ 0.09, 0.10, 0.11, 0.12,
+};
+
+static float texcoord_array[] = {
+ 101.0, 102.0, 103.0, 104.0,
+ 105.0, 106.0, 107.0, 108.0,
+ 109.0, 110.0, 111.0, 112.0,
+};
+
+float gl_2d_values[] =
+ {GL_POLYGON_TOKEN, 3,
+ 1.0, 2.0,
+ 3.0, 4.0,
+ 5.0, 6.0};
+
+float gl_3d_values[] =
+ {GL_POLYGON_TOKEN, 3,
+ 1.0, 2.0, 0.3,
+ 3.0, 4.0, 0.2,
+ 5.0, 6.0, 0.1};
+
+float gl_3d_color_values[] =
+ {GL_POLYGON_TOKEN, 3,
+ 1.0, 2.0, 0.3, 0.01, 0.02, 0.03, 0.04,
+ 3.0, 4.0, 0.2, 0.05, 0.06, 0.07, 0.08,
+ 5.0, 6.0, 0.1, 0.09, 0.10, 0.11, 0.12};
+
+float gl_3d_color_texture_values[] =
+ {GL_POLYGON_TOKEN, 3,
+ 1.0, 2.0, 0.3, 0.01, 0.02, 0.03, 0.04, 101.0, 102.0, 103.0, 104.0,
+ 3.0, 4.0, 0.2, 0.05, 0.06, 0.07, 0.08, 105.0, 106.0, 107.0, 108.0,
+ 5.0, 6.0, 0.1, 0.09, 0.10, 0.11, 0.12, 109.0, 110.0, 111.0, 112.0};
+
+float gl_4d_color_texture_values[] =
+ {GL_POLYGON_TOKEN, 3,
+ 1.0, 2.0, 0.3, 1.0, 0.01, 0.02, 0.03, 0.04, 101.0, 102.0, 103.0, 104.0,
+ 3.0, 4.0, 0.2, 1.0, 0.05, 0.06, 0.07, 0.08, 105.0, 106.0, 107.0, 108.0,
+ 5.0, 6.0, 0.1, 1.0, 0.09, 0.10, 0.11, 0.12, 109.0, 110.0, 111.0, 112.0};
+
+struct type {
+ GLenum type;
+ char *name;
+ float *values;
+ int count;
+} types[] = {
+ { GL_2D, "GL_2D",
+ gl_2d_values, ARRAY_SIZE(gl_2d_values) },
+
+ { GL_3D, "GL_3D",
+ gl_3d_values, ARRAY_SIZE(gl_3d_values) },
+
+ { GL_3D_COLOR, "GL_3D_COLOR",
+ gl_3d_color_values, ARRAY_SIZE(gl_3d_color_values) },
+
+ { GL_3D_COLOR_TEXTURE, "GL_3D_COLOR_TEXTURE",
+ gl_3d_color_texture_values, ARRAY_SIZE(gl_3d_color_texture_values) },
+
+ { GL_4D_COLOR_TEXTURE, "GL_4D_COLOR_TEXTURE",
+ gl_4d_color_texture_values, ARRAY_SIZE(gl_4d_color_texture_values) },
+};
+
+static void
+report_failure(struct type *type, float *buffer, int count)
+{
+ int i;
+
+ fprintf(stderr, "Feeback failed for %s:\n", type->name);
+
+ fprintf(stderr, " Expected: Observed: (%d/%d)\n",
+ count, type->count);
+ for (i = 0; i < types->count; i++) {
+ fprintf(stderr, " %9f %9f\n", type->values[i], buffer[i]);
+ }
+ fprintf(stderr, "\n");
+
+}
+
+enum piglit_result
+piglit_display(void)
+{
+ bool pass = true;
+ float buffer[2 +
+ ARRAY_SIZE(vertex_array) +
+ ARRAY_SIZE(color_array) +
+ ARRAY_SIZE(texcoord_array)];
+ int i, j;
+
+ piglit_ortho_projection(piglit_width, piglit_height, false);
+
+ glClearColor(0.0, 1.0, 0.0, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glVertexPointer(4, GL_FLOAT, 0, vertex_array);
+ glColorPointer(4, GL_FLOAT, 0, color_array);
+ glTexCoordPointer(4, GL_FLOAT, 0, texcoord_array);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_COLOR_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ for (i = 0; i < ARRAY_SIZE(types); i++) {
+ bool case_pass = true;
+ int returned_count;
+
+ printf("Testing %s\n", types[i].name);
+
+ for (j = 0; j < ARRAY_SIZE(buffer); j++)
+ buffer[j] = -1.0;
+
+ glFeedbackBuffer(ARRAY_SIZE(buffer), types[i].type, buffer);
+ glRenderMode(GL_FEEDBACK);
+ glDrawArrays(GL_TRIANGLES, 0, 4);
+ returned_count = glRenderMode(GL_RENDER);
+
+ if (returned_count != types[i].count) {
+ case_pass = false;
+ } else {
+ for (j = 0; j < types[i].count; j++) {
+ if (fabs(buffer[j] - types[i].values[j]) > .01)
+ case_pass = false;
+ }
+ }
+
+ if (!case_pass) {
+ report_failure(&types[i], buffer, returned_count);
+ pass = false;
+ }
+ }
+
+ assert(glGetError() == 0);
+
+ glutSwapBuffers();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_EXT_vertex_array");
+}
--
1.7.5.4
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