vkcube: load image file at runtime

1 files changed, 21 insertions, 6 deletions

diff --git a/tools/Vulkan-Tools/cube/cube.c b/tools/Vulkan-Tools/cube/cube.c
index c08d41fd..29946c90 100644
--- a/tools/Vulkan-Tools/cube/cube.c
+++ b/tools/Vulkan-Tools/cube/cube.c
@@ -1698,13 +1698,27 @@ static void demo_prepare_depth(struct demo *demo) {
     demo_name_object(demo, VK_OBJECT_TYPE_IMAGE_VIEW, (uint64_t)demo->depth.view, "DepthView");
 }
 
-/* Convert ppm image data from header file into RGBA texture image */
-#include "lunarg.ppm.h"
+/* Convert ppm image data from file into RGBA texture image */
 bool loadTexture(const char *filename, uint8_t *rgba_data, VkSubresourceLayout *layout, int32_t *width, int32_t *height) {
-    (void)filename;
+    FILE *file = fopen(filename, "rb");
+    if (!file)
+        return false;
+    if (fseek(file, 0, SEEK_END) == -1)
+        return false;
+    long size = ftell(file);
+    if (size == -1)
+        return false;
+    if (fseek(file, 0, SEEK_SET) == -1)
+        return false;
+    char *buffer = malloc(size);
+    if (!buffer)
+        return false;
+    if (fread(buffer, 1, size, file) != (size_t) size)
+        return false;
+    fclose(file);
     char *cPtr;
-    cPtr = (char *)lunarg_ppm;
-    if ((unsigned char *)cPtr >= (lunarg_ppm + lunarg_ppm_len) || strncmp(cPtr, "P6\n", 3)) {
+    cPtr = buffer;
+    if (cPtr >= (buffer + size) || strncmp(cPtr, "P6\n", 3)) {
         return false;
     }
     while (strncmp(cPtr++, "\n", 1));
@@ -1713,7 +1727,7 @@ bool loadTexture(const char *filename, uint8_t *rgba_data, VkSubresourceLayout *
         return true;
     }
     while (strncmp(cPtr++, "\n", 1));
-    if ((unsigned char *)cPtr >= (lunarg_ppm + lunarg_ppm_len) || strncmp(cPtr, "255\n", 4)) {
+    if (cPtr >= (buffer + size) || strncmp(cPtr, "255\n", 4)) {
         return false;
     }
     while (strncmp(cPtr++, "\n", 1));
@@ -1727,6 +1741,7 @@ bool loadTexture(const char *filename, uint8_t *rgba_data, VkSubresourceLayout *
         }
         rgba_data += layout->rowPitch;
     }
+    free(buffer);
     return true;
 }