[Piglit] [PATCH] ext_image_dma_buf: Add tests for R8 and GR88 formats (v2)
Chad Versace
chad.versace at intel.com
Thu Jul 9 01:46:15 PDT 2015
Add test that transcodes NV12 to RGBA8 by importing the Y plane
as DRM_FORMAT_R8 and importing the UV plane as DRM_FORMAT_GR88.
v2: Delete commented-out code.
CC: Peter Frühberger <peter.fruehberger at gmail.com>
Cc: Rainer Hochecker <rainer.hochecker at onlinehome.de>
---
This test requires a patch series that I recently sent to mesa-dev:
Subject: [PATCH 0/2] egl,i965: Support importing R8 and GR88 dma_bufs as textures
Date: Thu, 9 Jul 2015 01:17:41 -0700
tests/all.py | 3 +
.../ext_image_dma_buf_import/CMakeLists.gles2.txt | 1 +
.../transcode-nv12-as-r8-gr88.c | 301 +++++++++++++++++++++
3 files changed, 305 insertions(+)
create mode 100644 tests/spec/ext_image_dma_buf_import/transcode-nv12-as-r8-gr88.c
diff --git a/tests/all.py b/tests/all.py
index e658f5e..88a8442 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -2858,6 +2858,9 @@ with profile.group_manager(
'ext_image_dma_buf_import-sample_argb8888', run_concurrent=False)
g(['ext_image_dma_buf_import-sample_rgb', '-fmt=XR24', '-alpha-one'],
'ext_image_dma_buf_import-sample_xrgb8888', run_concurrent=False)
+ g(['ext_image_dma_buf_import-transcode-nv12-as-r8-gr88'],
+ 'ext_image_dma_buf_import-transcode-nv12-as-r8-gr88',
+ run_concurrent=False)
with profile.group_manager(
PiglitGLTest,
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 80f1c83..a1e0042 100644
--- a/tests/spec/ext_image_dma_buf_import/CMakeLists.gles2.txt
+++ b/tests/spec/ext_image_dma_buf_import/CMakeLists.gles2.txt
@@ -18,6 +18,7 @@ if(PIGLIT_BUILD_DMA_BUF_TESTS)
piglit_add_executable(ext_image_dma_buf_import-sample_rgb sample_rgb.c sample_common.c image_common.c)
piglit_add_executable(ext_image_dma_buf_import-intel_external_sampler_with_dma_only intel_external_sampler_with_dma_only.c image_common.c)
+ piglit_add_executable(ext_image_dma_buf_import-transcode-nv12-as-r8-gr88 transcode-nv12-as-r8-gr88.c image_common.c)
endif()
# vim: ft=cmake:
diff --git a/tests/spec/ext_image_dma_buf_import/transcode-nv12-as-r8-gr88.c b/tests/spec/ext_image_dma_buf_import/transcode-nv12-as-r8-gr88.c
new file mode 100644
index 0000000..1e54855
--- /dev/null
+++ b/tests/spec/ext_image_dma_buf_import/transcode-nv12-as-r8-gr88.c
@@ -0,0 +1,301 @@
+/*
+ * Copyright © 2015 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
+ *
+ * Test transcoding NV12 to RGB by importing the Y plane as DRM_FORMAT_R8 and the UV
+ * plane as DRM_FORMAT_GR88.
+ *
+ * The shader implements a simple but fake NV12->RGB conversion equation,
+ * because the test's goal is not to test NV12->RGB conversion. Its goal is to
+ * test that EGL correctly imports and OpenGL correctly textures from the R8
+ * and GR88 DRM formats.
+ */
+
+#include "image_common.h"
+
+#define WINDOW_WIDTH 4
+#define WINDOW_HEIGHT 4
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_es_version = 30;
+ config.window_width = WINDOW_WIDTH;
+ config.window_height = WINDOW_HEIGHT;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+/* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
+ * some of the definitions so that building Piglit won't require bleeding-edge
+ * kernel headers.
+ */
+#ifndef DRM_FORMAT_R8
+#define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ')
+#endif
+
+#ifndef DRM_FORMAT_GR88
+#define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8')
+#endif
+
+/* Fake data for a 4x4 pixel image in NV12 format. */
+static const uint8_t y_data[] = {
+ 0x00, 0x11, 0x22, 0x33,
+ 0x44, 0x55, 0x66, 0x77,
+ 0x88, 0x99, 0xaa, 0xbb,
+ 0xcc, 0xdd, 0xee, 0xff,
+};
+
+static const uint8_t u_data[] = {
+ 0xc0, 0xc4,
+ 0xc8, 0xcc,
+};
+
+static const uint8_t v_data[] = {
+ 0xd0, 0xd4,
+ 0xd8, 0xdc,
+};
+
+static GLuint
+create_dma_buf_texture(uint32_t width, uint32_t height,
+ uint32_t cpp, uint32_t stride,
+ uint32_t drm_fourcc, const void *pixels)
+{
+ EGLDisplay dpy = eglGetCurrentDisplay();
+
+ enum piglit_result result = PIGLIT_PASS;
+
+ struct piglit_dma_buf *dma_buf;
+ int dma_buf_fd;
+ uint32_t dma_buf_offset;
+ uint32_t dma_buf_stride;
+ EGLImageKHR image;
+ EGLint image_attrs[13];
+ GLuint tex;
+ int i;
+
+ result = piglit_create_dma_buf(width, height, cpp, pixels, stride,
+ &dma_buf, &dma_buf_fd, &dma_buf_stride,
+ &dma_buf_offset);
+
+ if (result != PIGLIT_PASS) {
+ piglit_loge("failed to create dma_buf");
+ piglit_report_result(result);
+ }
+
+ i = 0;
+ image_attrs[i++] = EGL_LINUX_DRM_FOURCC_EXT;
+ image_attrs[i++] = drm_fourcc;
+ image_attrs[i++] = EGL_WIDTH;
+ image_attrs[i++] = width;
+ image_attrs[i++] = EGL_HEIGHT;
+ image_attrs[i++] = height;
+ image_attrs[i++] = EGL_DMA_BUF_PLANE0_FD_EXT;
+ image_attrs[i++] = dma_buf_fd;
+ image_attrs[i++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
+ image_attrs[i++] = dma_buf_stride;
+ image_attrs[i++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
+ image_attrs[i++] = dma_buf_offset;
+ image_attrs[i++] = EGL_NONE;
+
+
+ image = eglCreateImageKHR(dpy, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT,
+ (EGLClientBuffer) NULL, image_attrs);
+ if (image == EGL_NO_IMAGE_KHR) {
+ piglit_loge("failed to create EGLImage from dma_buf");
+ piglit_report_result(PIGLIT_FAIL);
+ }
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES) image);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ piglit_report_result(PIGLIT_FAIL);
+
+ return tex;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+ EGLDisplay dpy = eglGetCurrentDisplay();
+
+ piglit_require_egl_extension(dpy, "EGL_EXT_image_dma_buf_import");
+ piglit_require_egl_extension(dpy, "EGL_KHR_image_base");
+ piglit_require_extension("GL_OES_EGL_image");
+}
+
+static void
+create_textures(GLuint *r8_tex, GLuint *gr88_tex, float **ref_rgba_image)
+{
+ const int width = WINDOW_WIDTH;
+ const int height = WINDOW_HEIGHT;
+
+ uint8_t *r8_pixels;
+ uint8_t *gr88_pixels;
+
+ int i, x, y;
+
+ r8_pixels = malloc(width * height);
+ gr88_pixels = malloc(2 * (width / 2) * (height / 2));
+ *ref_rgba_image = malloc(4 * sizeof(float) * width * height);
+
+ if (!r8_pixels || !gr88_pixels || !*ref_rgba_image)
+ abort();
+
+ for (i = 0; i < width * height ; ++i) {
+ r8_pixels[i] = y_data[i];
+ }
+
+ for (i = 0; i < (width / 2) * (height / 2); ++i) {
+ gr88_pixels[2*i + 0] = u_data[i];
+ gr88_pixels[2*i + 1] = v_data[i];
+ }
+
+ for (y = 0; y < height; ++y) {
+ for (x = 0; x < width; ++x) {
+ float *rgba = &(*ref_rgba_image)[4 * (y * width + x)];
+
+ /* This must match the fake NV12->RGB conversion in the
+ * fragment shader.
+ */
+ rgba[0] = y_data[y * width + x] / 255.0f;
+ rgba[1] = u_data[(y / 2) * (width / 2) + (x / 2)] / 255.0f;
+ rgba[2] = v_data[(y / 2) * (width / 2) + (x / 2)] / 255.0f;
+ rgba[3] = 1.0f;
+ }
+ }
+
+ glActiveTexture(GL_TEXTURE0);
+ *r8_tex = create_dma_buf_texture(width, height,
+ /*cpp*/ 1, /*stride*/ width,
+ DRM_FORMAT_R8, r8_pixels);
+
+ glActiveTexture(GL_TEXTURE1);
+ *gr88_tex = create_dma_buf_texture(width / 2, height / 2,
+ /*cpp*/ 2, /*stride*/ width,
+ DRM_FORMAT_GR88, gr88_pixels);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+ GLuint r8_tex, gr88_tex;
+ float *ref_rgba_image;
+
+ GLuint va; /* vertex array */
+ GLuint vb; /* vertex buffer */
+ GLuint prog;
+
+ static const float vb_data[] = {
+ -1, -1,
+ 1, -1,
+ 1, 1,
+ -1, 1,
+ };
+
+ if (piglit_width != WINDOW_WIDTH ||
+ piglit_height != WINDOW_HEIGHT) {
+ piglit_loge("window is not %dx%d",
+ WINDOW_WIDTH, WINDOW_HEIGHT);
+ return PIGLIT_FAIL;
+ }
+
+ create_textures(&r8_tex, &gr88_tex, &ref_rgba_image);
+
+ prog = piglit_build_simple_program(
+ "#version 300 es\n"
+ "\n"
+ "in vec2 a_position;\n"
+ "out vec2 v_texcoord;\n"
+ "\n"
+ "void main()\n"
+ "{\n"
+ " gl_Position = vec4(a_position, 0, 1);\n"
+ "\n"
+ " v_texcoord = a_position;\n"
+ " v_texcoord += vec2(1, 1);\n"
+ " v_texcoord /= vec2(2, 2);\n"
+ "}\n",
+
+ "#version 300 es\n"
+ "\n"
+ "precision highp float;\n"
+ "uniform sampler2D u_r8_tex;\n"
+ "uniform sampler2D u_gr88_tex;\n"
+ "in vec2 v_texcoord;\n"
+ "out vec4 f_color;\n"
+ "\n"
+ "void main()\n"
+ "{\n"
+ " float y = texture(u_r8_tex, v_texcoord).r;\n"
+ " vec2 uv = texture(u_gr88_tex, v_texcoord).rg;\n"
+ "\n"
+ " /* A very fake NV12->RGB conversion */\n"
+ " f_color = vec4(y, uv.r, uv.g, 1);\n"
+ "}\n");
+
+ glUseProgram(prog);
+
+ glUniform1i(glGetUniformLocation(prog, "u_r8_tex"), 0);
+ glUniform1i(glGetUniformLocation(prog, "u_gr88_tex"), 1);
+
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ piglit_report_result(PIGLIT_FAIL);
+
+ glGenBuffers(1, &vb);
+ glBindBuffer(GL_ARRAY_BUFFER, vb);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(vb_data), vb_data,
+ GL_STATIC_DRAW);
+
+ glGenVertexArrays(1, &va);
+ glBindVertexArray(va);
+
+ glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, (void *) 0);
+ glEnableVertexAttribArray(0);
+
+ glViewport(0, 0, piglit_width, piglit_height);
+ glClearColor(0.2, 0.2, 0.2, 0.2);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glDrawArrays(GL_TRIANGLE_FAN, /*first*/ 0, /*count*/ 4);
+
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ piglit_report_result(PIGLIT_FAIL);
+
+ /* Increase the tolerance because the conversion path
+ * ubyte --(texturing)--> float --(glReadPixels)--> ubyte
+ * is lossy.
+ */
+ piglit_tolerance[0] = 0.05;
+ piglit_tolerance[1] = 0.05;
+ piglit_tolerance[2] = 0.05;
+ if (!piglit_probe_image_rgba(0, 0, piglit_width, piglit_height,
+ ref_rgba_image)) {
+ return PIGLIT_FAIL;
+ }
+
+ return PIGLIT_PASS;
+}
--
2.5.0.rc1
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