[Piglit] [PATCH 07/10] fbo-generatemipmap-1d: new test for mipmap generation of 1D textures
Marek Olšák
maraeo at gmail.com
Sat Mar 15 09:53:48 PDT 2014
From: Marek Olšák <marek.olsak at amd.com>
---
tests/all.py | 2 +
tests/fbo/CMakeLists.gl.txt | 1 +
tests/fbo/fbo-generatemipmap-1d.c | 244 ++++++++++++++++++++++++++++++++++++++
3 files changed, 247 insertions(+)
create mode 100644 tests/fbo/fbo-generatemipmap-1d.c
diff --git a/tests/all.py b/tests/all.py
index 65963cc..4ec9c4b 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -1685,6 +1685,8 @@ add_concurrent_test(arb_framebuffer_object, 'fbo-drawbuffers-none glBlitFramebuf
add_concurrent_test(arb_framebuffer_object, 'fbo-generatemipmap-cubemap')
add_concurrent_test(arb_framebuffer_object, 'fbo-generatemipmap-cubemap RGB9_E5')
add_concurrent_test(arb_framebuffer_object, 'fbo-generatemipmap-cubemap S3TC_DXT1')
+add_concurrent_test(arb_framebuffer_object, 'fbo-generatemipmap-1d')
+add_concurrent_test(arb_framebuffer_object, 'fbo-generatemipmap-1d RGB9_E5')
# Group ARB_framebuffer_sRGB
arb_framebuffer_srgb = Group()
diff --git a/tests/fbo/CMakeLists.gl.txt b/tests/fbo/CMakeLists.gl.txt
index a2b9bd0..19b21c3 100644
--- a/tests/fbo/CMakeLists.gl.txt
+++ b/tests/fbo/CMakeLists.gl.txt
@@ -54,6 +54,7 @@ piglit_add_executable (fbo-flushing-2 fbo-flushing-2.c)
piglit_add_executable (fbo-fragcoord fbo-fragcoord.c)
piglit_add_executable (fbo-fragcoord2 fbo-fragcoord2.c)
piglit_add_executable (fbo-generatemipmap fbo-generatemipmap.c)
+piglit_add_executable (fbo-generatemipmap-1d fbo-generatemipmap-1d.c)
piglit_add_executable (fbo-generatemipmap-array fbo-generatemipmap-array.c)
piglit_add_executable (fbo-generatemipmap-cubemap fbo-generatemipmap-cubemap.c)
piglit_add_executable (fbo-generatemipmap-filtering fbo-generatemipmap-filtering.c)
diff --git a/tests/fbo/fbo-generatemipmap-1d.c b/tests/fbo/fbo-generatemipmap-1d.c
new file mode 100644
index 0000000..ec0e82d
--- /dev/null
+++ b/tests/fbo/fbo-generatemipmap-1d.c
@@ -0,0 +1,244 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ * Copyright © 2011 Red Hat Inc.
+ * Copyright © 2014 Advanced Micro Devices, 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.
+ *
+ * Authors:
+ * Dave Airlie
+ * Marek Olšák <maraeo at gmail.com>
+ *
+ */
+
+#include "piglit-util-gl-common.h"
+
+#define TEX_SIZE 128
+#define TEX_LEVELS 8
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_compat_version = 10;
+
+ config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGB;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static const float red[] = {1, 0, 0, 0};
+static const float green[] = {0, 1, 0, 0};
+static const float blue[] = {0, 0, 1, 0};
+static const float white[] = {1, 1, 1, 1};
+
+static const char *fs_1d =
+ "uniform sampler1D tex; \n"
+ "void main() \n"
+ "{ \n"
+ " gl_FragColor = texture1D(tex, gl_TexCoord[0].x); \n"
+ "} \n";
+
+static GLuint prog;
+
+static float colors[4][4] = {
+ {1.0, 0.0, 0.0, 1.0},
+ {0.0, 1.0, 0.0, 1.0},
+ {0.0, 0.0, 1.0, 1.0},
+ {1.0, 0.0, 1.0, 1.0},
+};
+
+static GLenum format;
+
+static void
+load_texture_1d(void)
+{
+ float p[TEX_SIZE * 4];
+ int x;
+
+ for (x = 0; x < TEX_SIZE; x++) {
+ int c = x / (TEX_SIZE/4);
+ memcpy(&p[x*4], colors[c], sizeof(float) * 4);
+ }
+
+ glTexSubImage1D(GL_TEXTURE_1D, 0, 0, TEX_SIZE, GL_RGBA, GL_FLOAT, p);
+}
+
+static int
+create_texture_1d(void)
+{
+ GLuint tex, fb;
+ GLenum status;
+ int i, dim;
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_1D, tex);
+ glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
+ glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+ for (i = 0, dim = TEX_SIZE; dim >0; i++, dim /= 2) {
+ glTexImage1D(GL_TEXTURE_1D, i, format, dim, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ }
+
+ glGenFramebuffers(1, &fb);
+ glBindFramebuffer(GL_FRAMEBUFFER, fb);
+
+ glFramebufferTexture1D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_1D, tex, 0);
+
+ status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+ if (status != GL_FRAMEBUFFER_COMPLETE) {
+ load_texture_1d();
+ goto done;
+ }
+
+ glViewport(0, 0, TEX_SIZE, 1);
+ piglit_ortho_projection(TEX_SIZE, 1, GL_FALSE);
+
+ glColor4fv(colors[0]);
+ piglit_draw_rect(0, 0, TEX_SIZE / 4, 1);
+ glColor4fv(colors[1]);
+ piglit_draw_rect(TEX_SIZE / 4, 0, TEX_SIZE / 4, 1);
+ glColor4fv(colors[2]);
+ piglit_draw_rect(TEX_SIZE / 2, 0, TEX_SIZE / 4, 1);
+ glColor4fv(colors[3]);
+ piglit_draw_rect(TEX_SIZE/4 * 3, 0, TEX_SIZE / 4, 1);
+
+done:
+ glDeleteFramebuffers(1, &fb);
+ glGenerateMipmap(GL_TEXTURE_1D);
+ return tex;
+}
+
+static void
+draw_level(int x, int y, int level)
+{
+ int loc;
+
+ glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_LOD, level);
+ glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAX_LOD, level);
+
+ glUseProgram(prog);
+ loc = glGetUniformLocation(prog, "tex");
+ glUniform1i(loc, 0); /* texture unit p */
+
+ glViewport(0, 0, piglit_width, piglit_height);
+ piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
+
+ glBindFramebuffer(GL_FRAMEBUFFER, piglit_winsys_fbo);
+
+ piglit_draw_rect_tex(x, y, TEX_SIZE, 5, 0, 0, 1, 1);
+ glUseProgram(0);
+}
+
+static bool
+test_level(int level)
+{
+ int size = TEX_SIZE >> level;
+ int x,i,c;
+ float e[TEX_SIZE * 4], observed[TEX_SIZE * 4];
+
+ glGetTexImage(GL_TEXTURE_1D, level, GL_RGBA, GL_FLOAT, observed);
+
+ if (size == 1) {
+ memset(e, 0, 4 * sizeof(float));
+
+ /* Average the colors for the last level. */
+ for (i = 0; i < 4; i++)
+ for (c = 0; c < 4; c++)
+ e[c] += colors[i][c] * 0.25;
+ }
+ else if (size == 2) {
+ memset(e, 0, 8 * sizeof(float));
+
+ for (i = 0; i < 2; i++)
+ for (c = 0; c < 4; c++)
+ e[c] += colors[i][c] * 0.5;
+ for (i = 2; i < 4; i++)
+ for (c = 0; c < 4; c++)
+ e[4+c] += colors[i][c] * 0.5;
+ }
+ else {
+ for (x = 0; x < size; x++) {
+ int col = x / (size/4);
+ memcpy(&e[x*4], colors[col], sizeof(float) * 4);
+ }
+ }
+
+ for (x = 0; x < size; x++) {
+ float *probe = &observed[x*4];
+ float *expected = &e[x*4];
+
+ for (i = 0; i < 4; ++i) {
+ if (fabs(probe[i] - expected[i]) >= piglit_tolerance[i]) {
+ printf("Probe color at (%i)\n", x);
+ printf(" Expected: %f %f %f %f\n",
+ expected[0], expected[1], expected[2], expected[3]);
+ printf(" Observed: %f %f %f %f\n",
+ probe[0], probe[1], probe[2], probe[3]);
+ printf(" when testing level %i\n", level);
+ return false;
+ }
+ }
+ }
+ return true;
+}
+
+enum piglit_result
+piglit_display(void)
+{
+ GLboolean pass = GL_TRUE;
+ GLuint tex1d;
+ int level;
+
+ glClearColor(0.1, 0.1, 0.1, 0.1);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ tex1d = create_texture_1d();
+
+ for (level = 0; level < TEX_LEVELS; level++) {
+ draw_level(5, 5 + level * 10, level);
+ pass = pass && test_level(level);
+ }
+
+ glDeleteTextures(1, &tex1d);
+ piglit_present_results();
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void piglit_init(int argc, char **argv)
+{
+ int i;
+
+ piglit_require_extension("GL_EXT_framebuffer_object");
+
+ format = GL_RGBA8;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "RGB9_E5") == 0) {
+ /* Test a non-renderable format. */
+ piglit_require_extension("GL_EXT_texture_shared_exponent");
+ format = GL_RGB9_E5;
+ }
+ else {
+ assert(0);
+ }
+ }
+
+ prog = piglit_build_simple_program(NULL, fs_1d);
+}
--
1.8.3.2
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