[Mesa-dev] [PATCH] fbo-alphatest-nocolor{,-ff}: New test for bug #35073.
Eric Anholt
eric at anholt.net
Fri Mar 11 17:49:45 PST 2011
---
tests/all.tests | 2 +
tests/fbo/CMakeLists.gl.txt | 2 +
tests/fbo/fbo-alphatest-nocolor-ff.c | 146 +++++++++++++++++++++++++++
tests/fbo/fbo-alphatest-nocolor.c | 182 ++++++++++++++++++++++++++++++++++
4 files changed, 332 insertions(+), 0 deletions(-)
create mode 100644 tests/fbo/fbo-alphatest-nocolor-ff.c
create mode 100644 tests/fbo/fbo-alphatest-nocolor.c
diff --git a/tests/all.tests b/tests/all.tests
index b285b1e..b70e48a 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -104,6 +104,8 @@ add_plain_test(fbo, 'fbo-1d')
add_plain_test(fbo, 'fbo-3d')
add_plain_test(fbo, 'fbo-alpha')
add_plain_test(fbo, 'fbo-alphatest-formats')
+add_plain_test(fbo, 'fbo-alphatest-nocolor')
+add_plain_test(fbo, 'fbo-alphatest-nocolor-ff')
add_plain_test(fbo, 'fbo-array')
add_plain_test(fbo, 'fbo-luminance-alpha')
add_plain_test(fbo, 'fbo-blending-formats')
diff --git a/tests/fbo/CMakeLists.gl.txt b/tests/fbo/CMakeLists.gl.txt
index f267346..f1915aa 100644
--- a/tests/fbo/CMakeLists.gl.txt
+++ b/tests/fbo/CMakeLists.gl.txt
@@ -17,6 +17,8 @@ link_libraries (
add_executable (fbo-1d fbo-1d.c)
add_executable (fbo-alphatest-formats fbo-alphatest-formats.c)
+add_executable (fbo-alphatest-nocolor fbo-alphatest-nocolor.c)
+add_executable (fbo-alphatest-nocolor-ff fbo-alphatest-nocolor-ff.c)
add_executable (fbo-depth fbo-depth.c)
add_executable (fbo-depth-sample-compare fbo-depth-sample-compare.c)
add_executable (fbo-depthtex fbo-depthtex.c)
diff --git a/tests/fbo/fbo-alphatest-nocolor-ff.c b/tests/fbo/fbo-alphatest-nocolor-ff.c
new file mode 100644
index 0000000..f44e8d8
--- /dev/null
+++ b/tests/fbo/fbo-alphatest-nocolor-ff.c
@@ -0,0 +1,146 @@
+/*
+ * 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.
+ */
+
+/** @file fbo-alphatest-nocolor-ff.c
+ *
+ * Tests that rendering to a depth texture with no color buffer bound
+ * and alpha testing enabled using fixed function does the alpha
+ * testing correctly.
+ */
+
+#include "piglit-util.h"
+
+#define BUF_WIDTH 32
+int piglit_width = 32;
+int piglit_height = 32;
+int piglit_window_mode = GLUT_DOUBLE | GLUT_DEPTH | GLUT_ALPHA;
+
+static void create_fbo(GLuint *out_tex)
+{
+ GLuint tex, fb;
+ GLenum status;
+
+ /* Create the depth-stencil buffer. */
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
+ BUF_WIDTH, BUF_WIDTH, 0,
+ GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
+ assert(glGetError() == 0);
+
+ /* Create the FBO. */
+ glGenFramebuffersEXT(1, &fb);
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb);
+ glDrawBuffer(GL_NONE);
+ glReadBuffer(GL_NONE);
+
+ glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
+ GL_DEPTH_ATTACHMENT_EXT,
+ GL_TEXTURE_2D,
+ tex,
+ 0);
+
+ status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+ if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ piglit_report_result(PIGLIT_SKIP);
+ }
+
+ glViewport(0, 0, BUF_WIDTH, BUF_WIDTH);
+ glEnable(GL_DEPTH_TEST);
+ glDepthFunc(GL_ALWAYS);
+ glClearDepth(0.0);
+ glClear(GL_DEPTH_BUFFER_BIT);
+
+ assert(glGetError() == 0);
+
+ glEnable(GL_ALPHA_TEST);
+ glAlphaFunc(GL_GREATER, 0.5f);
+
+ /* Does not draw (depth texture = 1.0) */
+ glColor4f(0.0, 1.0, 0.0, 0.0);
+ piglit_draw_rect_z(1.0,
+ -1.0, -1.0, 1.0, 2.0);
+
+ /* Draws (depth texture = 0.0). */
+ glColor4f(0.0, 1.0, 0.0, 1.0);
+ piglit_draw_rect_z(1.0,
+ 0.0, -1.0, 1.0, 2.0);
+
+ glDeleteFramebuffersEXT(1, &fb);
+
+ glDisable(GL_ALPHA_TEST);
+ glDisable(GL_DEPTH_TEST);
+
+ *out_tex = tex;
+}
+
+enum piglit_result piglit_display(void)
+{
+ GLboolean pass = GL_TRUE;
+ float black[] = {0, 0, 0, 0};
+ float white[] = {1, 1, 1, 1};
+ GLuint tex;
+
+ glClearColor(0.0, 1.0, 0.0, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ create_fbo(&tex);
+
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glViewport(0, 0, piglit_width, piglit_height);
+
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+
+ glEnable(GL_TEXTURE_2D);
+ glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY);
+
+ piglit_draw_rect_tex(-1, -1, 2, 2,
+ 0, 0, 1, 1);
+
+ glDisable(GL_TEXTURE_2D);
+
+ pass = pass && piglit_probe_rect_rgba(0, 0,
+ piglit_width / 2, piglit_height,
+ black);
+ pass = pass && piglit_probe_rect_rgba(piglit_width / 2, 0,
+ piglit_width / 2, piglit_height,
+ white);
+
+ glDeleteTextures(1, &tex);
+
+ glutSwapBuffers();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_EXT_framebuffer_object");
+ piglit_require_extension("GL_ARB_depth_texture");
+}
diff --git a/tests/fbo/fbo-alphatest-nocolor.c b/tests/fbo/fbo-alphatest-nocolor.c
new file mode 100644
index 0000000..a964cef
--- /dev/null
+++ b/tests/fbo/fbo-alphatest-nocolor.c
@@ -0,0 +1,182 @@
+/*
+ * 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.
+ */
+
+/** @file fbo-alphatest-nocolor.c
+ *
+ * Tests that rendering to a depth texture with no color buffer bound
+ * and alpha testing enabled does the alpha testing correctly.
+ */
+
+#include "piglit-util.h"
+
+#define BUF_WIDTH 32
+int piglit_width = 32;
+int piglit_height = 32;
+int piglit_window_mode = GLUT_DOUBLE | GLUT_DEPTH | GLUT_ALPHA;
+GLuint prog;
+
+static const char *vs_source =
+ "void main() \n"
+ "{ \n"
+ " gl_Position = gl_Vertex;\n"
+ "} \n";
+
+static const char *fs_source =
+ "uniform vec4 color;\n"
+ "void main() \n"
+ "{ \n"
+ " gl_FragColor = color;\n"
+ "} \n";
+static int color_location;
+
+static void create_fbo(GLuint *out_tex)
+{
+ GLuint tex, fb;
+ GLenum status;
+
+ /* Create the depth-stencil buffer. */
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
+ BUF_WIDTH, BUF_WIDTH, 0,
+ GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
+ assert(glGetError() == 0);
+
+ /* Create the FBO. */
+ glGenFramebuffersEXT(1, &fb);
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb);
+ glDrawBuffer(GL_NONE);
+ glReadBuffer(GL_NONE);
+
+ glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
+ GL_DEPTH_ATTACHMENT_EXT,
+ GL_TEXTURE_2D,
+ tex,
+ 0);
+
+ status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+ if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ piglit_report_result(PIGLIT_SKIP);
+ }
+
+ glViewport(0, 0, BUF_WIDTH, BUF_WIDTH);
+ glEnable(GL_DEPTH_TEST);
+ glDepthFunc(GL_ALWAYS);
+ glClearDepth(0.0);
+ glClear(GL_DEPTH_BUFFER_BIT);
+
+ assert(glGetError() == 0);
+
+ glEnable(GL_ALPHA_TEST);
+ glAlphaFunc(GL_GREATER, 0.5f);
+ glUseProgram(prog);
+
+ /* Does not draw (depth texture = 1.0) */
+ glUniform4f(color_location, 0.0, 1.0, 0.0, 0.0);
+ piglit_draw_rect_z(1.0,
+ -1.0, -1.0, 1.0, 2.0);
+
+ /* Draws (depth texture = 0.0). */
+ glUniform4f(color_location, 0.0, 1.0, 0.0, 1.0);
+ piglit_draw_rect_z(1.0,
+ 0.0, -1.0, 1.0, 2.0);
+
+ glDeleteFramebuffersEXT(1, &fb);
+
+ glDisable(GL_ALPHA_TEST);
+ glDisable(GL_DEPTH_TEST);
+ glUseProgram(0);
+
+ *out_tex = tex;
+}
+
+enum piglit_result piglit_display(void)
+{
+ GLboolean pass = GL_TRUE;
+ float black[] = {0, 0, 0, 0};
+ float white[] = {1, 1, 1, 1};
+ GLuint tex;
+
+ glClearColor(0.0, 1.0, 0.0, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ create_fbo(&tex);
+
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glViewport(0, 0, piglit_width, piglit_height);
+
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+
+ glEnable(GL_TEXTURE_2D);
+ glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
+ glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY);
+
+ piglit_draw_rect_tex(-1, -1, 2, 2,
+ 0, 0, 1, 1);
+
+ glDisable(GL_TEXTURE_2D);
+
+ pass = pass && piglit_probe_rect_rgba(0, 0,
+ piglit_width / 2, piglit_height,
+ black);
+ pass = pass && piglit_probe_rect_rgba(piglit_width / 2, 0,
+ piglit_width / 2, piglit_height,
+ white);
+
+ glDeleteTextures(1, &tex);
+
+ glutSwapBuffers();
+
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void piglit_init(int argc, char **argv)
+{
+ GLuint fs, vs;
+
+ if (!GLEW_VERSION_2_0) {
+ printf("Requires OpenGL 2.0\n");
+ piglit_report_result(PIGLIT_SKIP);
+ }
+
+ piglit_require_extension("GL_EXT_framebuffer_object");
+
+ vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
+ fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source);
+ prog = piglit_link_simple_program(vs, fs);
+
+ if (!prog) {
+ piglit_report_result(PIGLIT_SKIP);
+ }
+
+ color_location = glGetUniformLocation(prog, "color");
+ if (color_location == -1) {
+ fprintf(stderr, "Failed to get uniform location");
+ piglit_report_result(PIGLIT_FAIL);
+ }
+}
--
1.7.4.1
More information about the mesa-dev
mailing list