tests/spec/ext_image_dma_buf_import/export-tex.c

   1 /*
   2  * Copyright © 2021 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "sample_common.h"
  25 #include "image_common.h"
  26
  27 /**
  28  * @file export-tex.c
  29  *
  30  * Verifies that we can correctly sample from an image that was:
  31  *      - Rendered to
  32  *      - Exported as DMA BUF
  33  *      - Imported as EGLImage/Texture
  34  */
  35
  36 PIGLIT_GL_TEST_CONFIG_BEGIN
  37
  38         config.supports_gl_es_version = 30;
  39
  40 PIGLIT_GL_TEST_CONFIG_END
  41
  42 #define CLEAR_VALUE 1.0, 1.0, 1.0, 1.0
  43
  44 enum piglit_result
  45 piglit_display(void)
  46 {
  47         return PIGLIT_PASS;
  48 }
  49
  50 static void
  51 tex_clear(GLuint tex, uint32_t w, uint32_t h)
  52 {
  53         GLuint fbo;
  54         glGenFramebuffers(1, &fbo);
  55         glBindFramebuffer(GL_FRAMEBUFFER, fbo);
  56         glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, tex, 0);
  57
  58         const float ones[] = { CLEAR_VALUE };
  59         glClearBufferfv(GL_COLOR, 0, ones);
  60
  61         glDeleteFramebuffers(1, &fbo);
  62         glBindFramebuffer(GL_FRAMEBUFFER, 0);
  63 }
  64
  65 static EGLImageKHR
  66 create_cleared_eglImage(EGLDisplay egl_dpy, int w, int h)
  67 {
  68         GLuint tex;
  69         glGenTextures(1, &tex);
  70         glBindTexture(GL_TEXTURE_2D, tex);
  71         glTexStorage2D(GL_TEXTURE_2D, 1, GL_RGBA8, w, h);
  72
  73         EGLImageKHR img =
  74                 eglCreateImageKHR(egl_dpy, eglGetCurrentContext(),
  75                                   EGL_GL_TEXTURE_2D_KHR,
  76                                   (EGLClientBuffer)(uintptr_t)tex,
  77                                   NULL);
  78         tex_clear(tex, w, h);
  79         glDeleteTextures(1, &tex);
  80         return img;
  81 }
  82
  83 static bool
  84 eglImage_to_dma_buf(EGLDisplay egl_dpy, EGLImageKHR img,
  85                     int *fourcc, int *num_planes, EGLuint64KHR *modifiers,
  86                     int *fd, EGLint *stride, EGLint *offset)
  87 {
  88         PFNEGLEXPORTDMABUFIMAGEQUERYMESAPROC dmabuf_query;
  89         PFNEGLEXPORTDMABUFIMAGEMESAPROC dmabuf_export;
  90
  91         dmabuf_query =
  92                 (PFNEGLEXPORTDMABUFIMAGEQUERYMESAPROC) eglGetProcAddress(
  93                         "eglExportDMABUFImageQueryMESA");
  94         dmabuf_export =
  95                 (PFNEGLEXPORTDMABUFIMAGEMESAPROC) eglGetProcAddress(
  96                         "eglExportDMABUFImageMESA");
  97
  98         if (!dmabuf_query || !dmabuf_export) {
  99                 fprintf(stderr, "could not find extension entrypoints\n");
 100                 return false;
 101         }
 102
 103
 104         /* Query the image properties, verify fourcc and num planes. */
 105         if (!dmabuf_query(egl_dpy, img, fourcc, num_planes, modifiers))
 106                 return false;
 107
 108         if (!piglit_check_egl_error(EGL_SUCCESS))
 109                 return false;
 110
 111         if (*num_planes != 1) {
 112                 fprintf(stderr, "Test only supports single plane\n");
 113                 piglit_report_result(PIGLIT_SKIP);
 114         }
 115
 116         /* Export the image, verify success. */
 117         if (!dmabuf_export(egl_dpy, img, fd, stride, offset))
 118                 return false;
 119
 120         if (!piglit_check_egl_error(EGL_SUCCESS))
 121                 return false;
 122
 123         /* Verify that we got a valid stride and offset for the fd. */
 124         if (*fd != -1 && (*stride < 1 || *offset < 0)) {
 125                 fprintf(stderr, "invalid data from driver: "
 126                         "fd %d stride %d offset %d\n",
 127                         *fd, *stride, *offset);
 128                 return false;
 129         }
 130
 131         return true;
 132 }
 133
 134 static bool
 135 dma_buf_to_eglImage(EGLDisplay egl_dpy, EGLImageKHR *out_img, int w, int h,
 136                     int fourcc, int num_planes, EGLuint64KHR modifier,
 137                     int fd, EGLint stride, EGLint offset)
 138 {
 139         const EGLint attrs[] = {
 140                 EGL_IMAGE_PRESERVED, EGL_TRUE,
 141                 EGL_WIDTH, w,
 142                 EGL_HEIGHT, h,
 143                 EGL_LINUX_DRM_FOURCC_EXT, fourcc,
 144                 EGL_DMA_BUF_PLANE0_FD_EXT, fd,
 145                 EGL_DMA_BUF_PLANE0_OFFSET_EXT, offset,
 146                 EGL_DMA_BUF_PLANE0_PITCH_EXT, stride,
 147                 EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT, modifier,
 148                 EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, modifier >> 32,
 149                 EGL_NONE, EGL_NONE
 150         };
 151
 152         EGLImageKHR img = eglCreateImageKHR(eglGetCurrentDisplay(),
 153                                             EGL_NO_CONTEXT,
 154                                             EGL_LINUX_DMA_BUF_EXT,
 155                                             (EGLClientBuffer)0, attrs);
 156
 157         if (!piglit_check_egl_error(EGL_SUCCESS)) {
 158                 *out_img = NULL;
 159                 return false;
 160         }
 161
 162         *out_img = img;
 163         return true;
 164 }
 165
 166 bool
 167 test(EGLDisplay egl_dpy, bool glfinish_after_dmabuf_export)
 168 {
 169         /* Create EGLImage */
 170         const int w = 128;
 171         const int h = 32;
 172         EGLImageKHR img = create_cleared_eglImage(egl_dpy, w, h);
 173
 174         /* Conditionally finish the clear */
 175         if (!glfinish_after_dmabuf_export)
 176                 glFinish();
 177
 178         /* Export DMABUF from EGLImage */
 179         int fourcc = -1;
 180         int num_planes = -1;
 181         EGLuint64KHR modifiers[64] = { -1, };
 182         int fd = -1;
 183         EGLint stride = -1;
 184         EGLint offset = -1;
 185         if (!eglImage_to_dma_buf(egl_dpy, img, &fourcc, &num_planes,
 186                                  modifiers, &fd, &stride, &offset)) {
 187                 fprintf(stderr, "image export failed!\n");
 188                 piglit_report_result(PIGLIT_FAIL);
 189         }
 190
 191         /* Conditionally finish the clear */
 192         if (glfinish_after_dmabuf_export)
 193                 glFinish();
 194
 195         /* Delete the EGLImage. */
 196         eglDestroyImageKHR(egl_dpy, img);
 197
 198         /* Import EGLImage from DMABUF */
 199         EGLImageKHR imported_img;
 200         if (!dma_buf_to_eglImage(egl_dpy, &imported_img, w, h,
 201                                  fourcc, num_planes,
 202                                  modifiers[0], fd, stride, offset)) {
 203                 fprintf(stderr, "dmabuf import failed!\n");
 204                 piglit_report_result(PIGLIT_FAIL);
 205         }
 206
 207         /* Draw EGLImage contents */
 208         GLuint imported_tex;
 209         texture_for_egl_image(imported_img, &imported_tex, true);
 210         sample_tex(imported_tex, 0, 0, 1, piglit_height, true);
 211
 212         /* Verify the contents */
 213         const float ones[] = { CLEAR_VALUE };
 214         return piglit_probe_pixel_rgba(0, 0, ones);
 215 }
 216
 217 void
 218 piglit_init(int argc, char **argv)
 219 {
 220         EGLDisplay egl_dpy = eglGetCurrentDisplay();
 221
 222         piglit_require_egl_extension(egl_dpy, "EGL_MESA_image_dma_buf_export");
 223         piglit_require_egl_extension(egl_dpy, "EGL_EXT_image_dma_buf_import");
 224         piglit_require_egl_extension(egl_dpy, "EGL_KHR_gl_texture_2D_image");
 225         piglit_require_extension("GL_OES_EGL_image_external");
 226         piglit_require_extension("GL_EXT_EGL_image_storage");
 227
 228         printf("Testing glFinish before dmabuf export\n");
 229         if (!test(egl_dpy, false))
 230                 piglit_report_result(PIGLIT_FAIL);
 231
 232         printf("Testing glFinish after dmabuf export\n");
 233         if (!test(egl_dpy, true))
 234                 piglit_report_result(PIGLIT_FAIL);
 235
 236         piglit_report_result(PIGLIT_PASS);
 237 }