Tests that one can sample the given buffer without other mipmap
levels by setting texture filtering accordingly.
Signed-off-by: Topi Pohjolainen <topi.pohjolai...@intel.com>
---
.../ext_image_dma_buf_import/CMakeLists.gles2.txt | 1 +
.../sample_argb8888_level_zero_only.c | 215 +++++++++++++++++++++
2 files changed, 216 insertions(+)
create mode 100644
tests/spec/ext_image_dma_buf_import/sample_argb8888_level_zero_only.c
diff --git a/tests/spec/ext_image_dma_buf_import/CMakeLists.gles2.txt
b/tests/spec/ext_image_dma_buf_import/CMakeLists.gles2.txt
index d92c3ba..f60afb6 100644
--- a/tests/spec/ext_image_dma_buf_import/CMakeLists.gles2.txt
+++ b/tests/spec/ext_image_dma_buf_import/CMakeLists.gles2.txt
@@ -11,5 +11,6 @@ link_libraries(
piglit_add_executable(ext_image_dma_buf_import-sample_argb8888
sample_argb8888.c)
piglit_add_executable(ext_image_dma_buf_import-sample_xrgb8888
sample_xrgb8888.c)
+piglit_add_executable(ext_image_dma_buf_import-sample_argb8888_level_zero_only
sample_argb8888_level_zero_only.c)
# vim: ft=cmake:
diff --git
a/tests/spec/ext_image_dma_buf_import/sample_argb8888_level_zero_only.c
b/tests/spec/ext_image_dma_buf_import/sample_argb8888_level_zero_only.c
new file mode 100644
index 0000000..8fef182
--- /dev/null
+++ b/tests/spec/ext_image_dma_buf_import/sample_argb8888_level_zero_only.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright © 2013 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.
+ */
+
+#define GL_GLEXT_PROTOTYPES 1
+#include "piglit-util-egl.h"
+#define EGL_EGLEXT_PROTOTYPES 1
+#include <EGL/eglext.h>
+#include <unistd.h>
+#include "ext_image_dma_buf_fourcc.h"
+
+/**
+ * @file sample_argb8888_level_zero_only.c
+ *
+ * Create EGL image out of ARGB8888 formatted dma buffer, set is as level
+ * zero, set texture filters for avoiding need for other mipmap-levels and
+ * sample it using a shader program.
+ */
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_es_version = 20;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static const char fs_src[] =
+ "uniform sampler2D sampler;\n"
+ "varying vec2 texcoords;\n"
+ "\n"
+ "void main()\n"
+ "{\n"
+ "gl_FragColor = texture2D(sampler, texcoords, 1.0);\n"
+ "}\n";
+static const char vs_src[] =
+ "attribute vec4 position;\n"
+ "varying vec2 texcoords;\n"
+ "\n"
+ "void main()\n"
+ "{\n"
+ "texcoords = 0.5 * (position.xy + vec2(1.0, 1.0));\n"
+ "gl_Position = position;\n"
+ "}\n";
+
+static GLuint
+make_program(const char *vs, const char *fs)
+{
+ GLuint prog, tmp;
+
+ prog = glCreateProgram();
+
+ tmp = piglit_compile_shader_text(GL_VERTEX_SHADER, vs);
+ glAttachShader(prog, tmp);
+
+ tmp = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs);
+ glAttachShader(prog, tmp);
+
+ glLinkProgram(prog);
+ if (!piglit_link_check_status(prog))
+ piglit_report_result(PIGLIT_FAIL);
+
+ glUseProgram(prog);
+
+ return prog;
+}
+
+void set_vertices(GLuint prog)
+{
+ static const GLfloat v[] = { -1.0f, 1.0f, -1.0f, -1.0f,
+ 1.0f, -1.0f, 1.0f, 1.0f };
+
+ GLint i = glGetAttribLocation(prog, "position");
+ glVertexAttribPointer(i, 2, GL_FLOAT, GL_FALSE, 0, v);
+ glEnableVertexAttribArray(i);
+}
+
+static bool
+sample_and_destroy_img(unsigned w, unsigned h, EGLImageKHR img)
+{
+ GLuint tex, prog;
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+ /* Set the image as level zero */
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)img);
+ if (!piglit_check_egl_error(EGL_SUCCESS))
+ return false;
+
+ prog = make_program(vs_src, fs_src);
+
+ glUniform1i(glGetUniformLocation(prog, "sampler"), 0);
+ set_vertices(prog);
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glViewport(0, 0, w, h);
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+
+ glDeleteProgram(prog);
+ glUseProgram(0);
+
+ glDeleteTextures(1, &tex);
+ eglDestroyImageKHR(eglGetCurrentDisplay(), img);
+
+ return true;
+}
+
+static bool
+sample_buffer(void *buf, int fd, unsigned w, unsigned h, unsigned stride,
+ unsigned offset)
+{
+ EGLImageKHR img;
+ EGLint attr[] = {
+ EGL_WIDTH, w,
+ EGL_HEIGHT, h,
+ EGL_LINUX_DRM_FOURCC_EXT, DRM_FORMAT_ARGB8888,
+ EGL_DMA_BUF_PLANE0_FD_EXT, fd,
+ EGL_DMA_BUF_PLANE0_OFFSET_EXT, offset,
+ EGL_DMA_BUF_PLANE0_PITCH_EXT, stride,
+ EGL_NONE
+ };
+
+ /**
+ * The spec says:
+ *
+ * "If <target> is EGL_LINUX_DMA_BUF_EXT, <dpy> must be a valid
+ * display, <ctx> must be EGL_NO_CONTEXT, and <buffer> must be
+ * NULL, cast into the type EGLClientBuffer."
+ */
+ img = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT,
+ EGL_LINUX_DMA_BUF_EXT, (EGLClientBuffer)0, attr);
+
+ /**
+ * Release the creator side of the buffer, EGL should have the
+ * ownership now.
+ */
+ piglit_destroy_dma_buf(buf);
+
+ /* Close the file descriptor also, EGL does not have ownership */
+ if (!piglit_check_egl_error(EGL_SUCCESS)) {
+ close(fd);
+ return false;
+ }
+
+ if (!img) {
+ fprintf(stderr, "image creation succeed but returned NULL\n");
+ return false;
+ }
+
+ return sample_and_destroy_img(w, h, img);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+ const unsigned char src[2 * 2 * 4] = {
+ 10, 20, 30, 40, 50, 60, 70, 80,
+ 11, 22, 33, 44, 55, 66, 77, 88 };
+ struct piglit_dma_buf *buf;
+ unsigned stride, offset, i, j;
+ int fd;
+ enum piglit_result res;
+
+ res = piglit_create_dma_buf(2, 2, 4, src, 2 * 4, &buf, &fd, &stride,
+ &offset);
+ if (res != PIGLIT_PASS)
+ return res;
+
+ if (!sample_buffer(buf, fd, 2, 2, stride, offset))
+ return PIGLIT_FAIL;
+
+ for (i = 0; i < 2; ++i) {
+ for (j = 0; j < 2; ++j) {
+ const float expected[] = {
+ src[i * 2 * 4 + j * 4 + 2] / 255.0f,
+ src[i * 2 * 4 + j * 4 + 1] / 255.0f,
+ src[i * 2 * 4 + j * 4 + 0] / 255.0f,
+ src[i * 2 * 4 + j * 4 + 3] / 255.0f};
+
+ if (!piglit_probe_pixel_rgba(j, i, expected))
+ return PIGLIT_FAIL;
+ }
+ }
+
+ return PIGLIT_PASS;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ piglit_require_extension("GL_OES_EGL_image");
+ piglit_require_egl_extension("EGL_EXT_image_dma_buf_import");
+}
--
1.8.1.2
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