[Piglit] [PATCH] arb blend func extended - check errors at glBegin
Dave Airlie
airlied at gmail.com
Tue Mar 27 12:15:07 PDT 2012
From: Dave Airlie <airlied at redhat.com>
The spec says we should error after Begin if the blend factors are applied
to an illegal draw buffer.
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
.../arb_blend_func_extended/api/CMakeLists.gl.txt | 1 +
.../arb_blend_func_extended/api/error-at-begin.c | 118 ++++++++++++++++++++
2 files changed, 119 insertions(+), 0 deletions(-)
create mode 100644 tests/spec/arb_blend_func_extended/api/error-at-begin.c
diff --git a/tests/spec/arb_blend_func_extended/api/CMakeLists.gl.txt b/tests/spec/arb_blend_func_extended/api/CMakeLists.gl.txt
index 5ee67ba..27e9204 100644
--- a/tests/spec/arb_blend_func_extended/api/CMakeLists.gl.txt
+++ b/tests/spec/arb_blend_func_extended/api/CMakeLists.gl.txt
@@ -14,4 +14,5 @@ link_libraries (
piglit_add_executable (arb_blend_func_extended-bindfragdataindexed-invalid-parameters bindfragdataindexed-invalid-parameters.c)
piglit_add_executable (arb_blend_func_extended-getfragdataindex getfragdataindex.c)
piglit_add_executable (arb_blend_func_extended-blend-api blend-api)
+piglit_add_executable (arb_blend_func_extended-error-at-begin error-at-begin)
# vim: ft=cmake:
diff --git a/tests/spec/arb_blend_func_extended/api/error-at-begin.c b/tests/spec/arb_blend_func_extended/api/error-at-begin.c
new file mode 100644
index 0000000..bc345c8
--- /dev/null
+++ b/tests/spec/arb_blend_func_extended/api/error-at-begin.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright © 2011 Red Hat
+ *
+ * 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 error-at-begin.c
+ *
+ * \author Dave Airlie
+ * ARB_blend_func_extended states in ERRORS section
+ * The error INVALID_OPERATION is generated by Begin or any procedure that
+ * implicitly calls Begin if any draw buffer has a blend function requiring the
+ * second color input (SRC1_COLOR, ONE_MINUS_SRC1_COLOR, SRC1_ALPHA or
+ * ONE_MINUS_SRC1_ALPHA), and a framebuffer is bound that has more than
+ * the value of MAX_DUAL_SOURCE_DRAW_BUFFERS-1 active color attachements.
+ */
+#include "piglit-util.h"
+
+int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
+int piglit_width = 100, piglit_height = 100;
+
+enum piglit_result
+piglit_display(void)
+{
+ return PIGLIT_FAIL;
+}
+
+static GLuint fbo;
+static GLuint max_buffers;
+
+static void
+create_fbo(void)
+{
+ GLuint rb[32];
+ int i;
+
+ glGenFramebuffersEXT(1, &fbo);
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
+
+ glGenRenderbuffersEXT(max_buffers, rb);
+
+ for (i = 0; i < max_buffers; i++) {
+ glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb[i]);
+
+ glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0 + i,
+ GL_RENDERBUFFER_EXT,
+ rb[i]);
+ glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA,
+ piglit_width, piglit_height);
+ }
+}
+
+void piglit_init(int argc, char **argv)
+{
+ GLint max_dual_source;
+ GLenum buffers[32];
+ int i;
+ piglit_require_gl_version(30);
+ piglit_require_extension("GL_ARB_blend_func_extended");
+
+ /* This test needs some number of draw buffers, so make sure the
+ * implementation isn't broken. This enables the test to generate a
+ * useful failure message.
+ */
+ glGetIntegerv(GL_MAX_DUAL_SOURCE_DRAW_BUFFERS, &max_dual_source);
+ if (max_dual_source < 1) {
+ fprintf(stderr,
+ "ARB_blend_func_extended requires GL_MAX_DUAL_SOURCE_DRAW_BUFFERS >= 1. "
+ "Only got %d!\n",
+ max_dual_source);
+ piglit_report_result(PIGLIT_FAIL);
+ }
+
+ max_buffers = max_dual_source + 1;
+
+ create_fbo();
+
+ for (i = 0; i < max_buffers; i++)
+ buffers[i] = GL_COLOR_ATTACHMENT0_EXT + i;
+
+ glDrawBuffersARB(max_buffers, buffers);
+
+ for (i = 0; i < max_buffers; i++) {
+ if (i >= max_dual_source)
+ glBlendFunciARB(i, GL_SRC1_ALPHA, GL_ONE_MINUS_SRC1_ALPHA);
+ else
+ glBlendFunciARB(i, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnableIndexedEXT(GL_BLEND, i);
+ }
+
+ glEnable(GL_BLEND);
+
+ glBegin(GL_QUADS);
+
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ piglit_report_result(PIGLIT_FAIL);
+ else
+ piglit_report_result(PIGLIT_PASS);
+}
--
1.7.7.6
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