[Piglit] [PATCH 6/7] ARB_texture_view: Test for rendering various levels and layers in texture view
Jon Ashburn
jon at lunarg.com
Thu Oct 24 23:49:01 CEST 2013
Tests GL_ARB_texture_view rendering with various layers and levels.
Creates texture maps with different solid colors for each level or layer,
reads the framebuffer to ensure the rendered color is correct.
Tested on Nvidia Quadro 600, all subtests pass.
---
tests/all.tests | 1 +
tests/spec/arb_texture_view/CMakeLists.gl.txt | 1 +
tests/spec/arb_texture_view/rendering_levels.c | 289 +++++++++++++++++++++++++
3 files changed, 291 insertions(+)
create mode 100644 tests/spec/arb_texture_view/rendering_levels.c
diff --git a/tests/all.tests b/tests/all.tests
index 5941eb2..a329156 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1477,6 +1477,7 @@ arb_texture_view['formats'] = concurrent_test('arb_texture_view-formats')
arb_texture_view['targets'] = concurrent_test('arb_texture_view-targets')
arb_texture_view['queries'] = concurrent_test('arb_texture_view-queries')
arb_texture_view['rendering-target'] = concurrent_test('arb_texture_view-rendering-target')
+arb_texture_view['rendering-levels'] = concurrent_test('arb_texture_view-rendering-levels')
tdfx_texture_compression_fxt1 = Group()
spec['3DFX_texture_compression_FXT1'] = tdfx_texture_compression_fxt1
diff --git a/tests/spec/arb_texture_view/CMakeLists.gl.txt b/tests/spec/arb_texture_view/CMakeLists.gl.txt
index 6b69bb1..a39c7dd 100644
--- a/tests/spec/arb_texture_view/CMakeLists.gl.txt
+++ b/tests/spec/arb_texture_view/CMakeLists.gl.txt
@@ -15,5 +15,6 @@ piglit_add_executable(arb_texture_view-formats formats.c common.c)
piglit_add_executable(arb_texture_view-targets targets.c common.c)
piglit_add_executable(arb_texture_view-queries queries.c)
piglit_add_executable(arb_texture_view-rendering-target rendering_target.c common.c)
+piglit_add_executable(arb_texture_view-rendering-levels rendering_levels.c common.c)
# vim: ft=cmake:
diff --git a/tests/spec/arb_texture_view/rendering_levels.c b/tests/spec/arb_texture_view/rendering_levels.c
new file mode 100644
index 0000000..9748aa9
--- /dev/null
+++ b/tests/spec/arb_texture_view/rendering_levels.c
@@ -0,0 +1,289 @@
+/*
+ * Copyright © 2013 LunarG, 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.
+ *
+ * Author: Jon Ashburn <jon at lunarg.com>
+ */
+
+/**
+ * Tests GL_ARB_texture_view rendering with various layers and levels.
+ * Creates texture maps with different solid colors for each level or layer,
+ * reads the framebuffer to ensure the rendered color is correct.
+ */
+
+#include "piglit-util-gl-common.h"
+#include "common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_compat_version = 20;
+ config.supports_gl_core_version = 31;
+ config.window_width = 128;
+ config.window_height = 128;
+
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static const char *TestName = "arb_texture_view-rendering-levels";
+static int tex_loc_2Darray;
+static int prog2Darray;
+
+/**
+ * Texture views with varying minimum and number of levels, 2D only
+ */
+static bool
+test_render_levels()
+{
+ GLuint tex, new_tex;
+ GLint width = 4096, height = 4096, levels =13;
+ GLuint numLevels[] = {3,2,2,1};
+ GLint l;
+ int expectedLevel;
+ GLfloat expected[3];
+ int p;
+ bool pass = true;
+
+ glUseProgram(0);
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+
+ glTexStorage2D(GL_TEXTURE_2D, levels, GL_RGBA8, width, height);
+ glEnable(GL_TEXTURE_2D);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+ /* load each mipmap with a different color texture */
+ for (l = 0; l < levels; l++) {
+ GLubyte *buf = create_solid_image(width, height, 1, 4, l);
+
+ if (buf != NULL) {
+ glTexSubImage2D(GL_TEXTURE_2D, l, 0, 0, width, height,
+ GL_RGBA, GL_UNSIGNED_BYTE, buf);
+ free(buf);
+ }
+
+ if (width > 1)
+ width /= 2;
+ if (height > 1)
+ height /= 2;
+ }
+
+ pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+
+ /* create view of texture with restricted levels and draw quad */
+ /* using smallest mip level in the view range which varies every loop */
+ for (l = 0; l < ARRAY_SIZE(numLevels); l++) {
+ glGenTextures(1, &new_tex);
+ glTextureView(new_tex, GL_TEXTURE_2D, tex, GL_RGBA8, l,
+ numLevels[l], 0, 1);
+ glBindTexture(GL_TEXTURE_2D, new_tex);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, levels-1);
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ piglit_draw_rect_tex(-1.0, -1.0, 2.0/(float) (l+2),
+ 2.0/ (float) (l+2), 0.0, 0.0, 1.0, 1.0);
+
+ expectedLevel = l + numLevels[l] - 1;
+ expected[0] = Colors[expectedLevel][0] / 255.0;
+ expected[1] = Colors[expectedLevel][1] / 255.0;
+ expected[2] = Colors[expectedLevel][2] / 255.0;
+
+ p = piglit_probe_pixel_rgb(piglit_width/(2*(l+3)),
+ piglit_height/(2*(l+3)), expected);
+
+ piglit_present_results();
+
+#if 0
+ { /* debug */
+ GLint param;
+ glGetTexParameteriv(GL_TEXTURE_2D,
+ GL_TEXTURE_BASE_LEVEL, ¶m);
+ printf("for view min level=%d base_level=%d exp color=%f %f %f\n",
+ l, param, expected[0], expected[1], expected[2]);
+ glGetTexParameteriv(GL_TEXTURE_2D,
+ GL_TEXTURE_MAX_LEVEL, ¶m);
+ printf("max_level=%d\n", param);
+ glGetTexParameteriv(GL_TEXTURE_2D,
+ GL_TEXTURE_VIEW_MIN_LEVEL, ¶m);
+ printf("view min_level=%d\n", param);
+ glGetTexParameteriv(GL_TEXTURE_2D,
+ GL_TEXTURE_VIEW_NUM_LEVELS, ¶m);
+ printf("view num_level=%d\n", param);
+ glGetTexParameteriv(GL_TEXTURE_2D,
+ GL_TEXTURE_IMMUTABLE_LEVELS,
+ ¶m);
+ printf("immutable levels=%d\n", param);
+ sleep(1);
+ }
+#endif
+
+ if (!p) {
+ printf("%s: wrong color for view min level %d, expectedLevel %d\n",
+ TestName, l, expectedLevel);
+ pass = false;
+ }
+ glDeleteTextures(1, &new_tex);
+ }
+
+ glDisable(GL_TEXTURE_2D);
+ glDeleteTextures(1, &tex);
+ return pass;
+}
+
+/**
+ * Views with varying minimum and number of layers 2D_ARRAY only
+ */
+static bool
+test_render_layers()
+{
+ GLuint tex, new_tex;
+ GLint width = 16, height = 16, layers = 8;
+ GLint l;
+ GLint numLayers[] = {7, 1, 2, 2};
+ int expectedLayer;
+ GLfloat expected[3];
+ int p;
+ bool pass = true;
+
+ glUseProgram(prog2Darray);
+ glUniform1i(tex_loc_2Darray, 0);
+
+ glGenTextures(1, &tex);
+ glActiveTexture(GL_TEXTURE0);
+ glBindTexture(GL_TEXTURE_2D_ARRAY, tex);
+
+ glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BASE_LEVEL, 0);
+ glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAX_LEVEL, 0);
+ glTexStorage3D(GL_TEXTURE_2D_ARRAY, 1, GL_RGBA8, width, height, layers);
+
+ /* load each array layer with a different color texture */
+ for (l = 0; l < layers; l++) {
+ GLubyte *buf = create_solid_image(width, height, 1, 4, l);
+
+ if (buf != NULL) {
+ glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, l,
+ width, height, 1, GL_RGBA,
+ GL_UNSIGNED_BYTE, buf);
+ free(buf);
+ }
+
+ }
+
+ pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+
+ /* create view of texture with restricted layers and draw quad */
+ /* using a single layer in the view range which varies every loop */
+ for (l = 0; l < ARRAY_SIZE(numLayers); l++) {
+ glGenTextures(1, &new_tex);
+ glTextureView(new_tex, GL_TEXTURE_2D_ARRAY, tex, GL_RGBA8,
+ 0, 1, l, numLayers[l]);
+
+ glActiveTexture(GL_TEXTURE0);
+ glBindTexture(GL_TEXTURE_2D_ARRAY, new_tex);
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ expectedLayer = l + numLayers[l] - 1;
+ draw_3d_depth(-1.0, -1.0, 2.0, 2.0, expectedLayer);
+
+ expected[0] = Colors[expectedLayer][0] / 255.0;
+ expected[1] = Colors[expectedLayer][1] / 255.0;
+ expected[2] = Colors[expectedLayer][2] / 255.0;
+
+ p = piglit_probe_pixel_rgb(piglit_width/2, piglit_height/2,
+ expected);
+
+ piglit_present_results();
+
+#if 0
+ printf("for view min layer=%d expectedLayer=%d expected color=%f %f %f\n",
+ l, expectedLayer, expected[0], expected[1], expected[2]);
+ sleep(1);
+#endif
+
+ if (!p) {
+ printf("%s: wrong color for view min layer %d, expectedLayer %d\n",
+ TestName, l, expectedLayer);
+ pass = false;
+ }
+ glDeleteTextures(1, &new_tex);
+ }
+
+ glDeleteTextures(1, &tex);
+ return pass;
+}
+
+#define X(f, desc) \
+ do { \
+ const bool subtest_pass = (f); \
+ piglit_report_subtest_result(subtest_pass \
+ ? PIGLIT_PASS : PIGLIT_FAIL, \
+ (desc)); \
+ pass = pass && subtest_pass; \
+ } while (0)
+
+enum piglit_result
+piglit_display(void)
+{
+ bool pass = true;
+ X(test_render_layers(), "2D layers rendering");
+ X(test_render_levels(), "2D levels rendering");
+#undef X
+ pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ char *vsCode;
+ char *fsCode;
+
+ piglit_require_extension("GL_ARB_texture_storage");
+ piglit_require_extension("GL_ARB_texture_view");
+ piglit_require_extension("GL_EXT_texture_array");
+
+ /* setup shaders and program object for 2DArray rendering */
+ asprintf(&vsCode,
+ "void main()\n"
+ "{\n"
+ " gl_Position = gl_Vertex;\n"
+ " gl_TexCoord[0] = gl_MultiTexCoord0;\n"
+ "}\n");
+ asprintf(&fsCode,
+ "#extension GL_EXT_texture_array : enable\n"
+ "uniform sampler2DArray tex;\n"
+ "void main()\n"
+ "{\n"
+ " vec4 color = texture2DArray(tex, gl_TexCoord[0].xyz);\n"
+ " gl_FragColor = vec4(color.xyz, 1.0);\n"
+ "}\n");
+ prog2Darray = piglit_build_simple_program(vsCode, fsCode);
+ free(fsCode);
+ free(vsCode);
+ tex_loc_2Darray = glGetUniformLocation(prog2Darray, "tex");
+
+}
--
1.8.1.2
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