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[vulkan] Round shadow map sizes correctly

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I'd added some developer output to see how the layers were distributed
between images and found the image widths to be... odd. It turns out I
was double-adding the shadow_quanta. Oops. Results in ~164MB less memory
used by marcher (for 32 pixel quanta).
This commit is contained in:
Bill Currie 2023-12-13 00:03:25 +09:00
parent 175e9fd7c9
commit 694d969c83
1 changed files with 8 additions and 1 deletions
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9
libs/video/renderer/vulkan/vulkan_lighting.c
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@ -1615,7 +1615,7 @@ allocate_map (mapctx_t *mctx, int type, int (*getsize) (const light_t *light))
if (lr->mode != type) {
continue;
}
int light_size = getsize (&mctx->lights[li]) + shadow_quanta - 1;
int light_size = getsize (&mctx->lights[li]);
light_size = ((light_size + shadow_quanta - 1) / shadow_quanta)
* shadow_quanta;
if (size != light_size || numLayers + layers > mctx->maxLayers) {
@ -1854,6 +1854,13 @@ build_shadow_maps (lightingctx_t *lctx, vulkan_ctx_t *ctx)
totalLayers, lctx->num_maps,
lctx->shadow_resources ? lctx->shadow_resources->size
: (VkDeviceSize) 0);
if (developer & SYS_lighting) {
auto images = lctx->shadow_resources->objects;
for (int i = 0; i < lctx->num_maps; i++) {
printf ("map id:%d width:%d layers:%d\n", i,
images[i].image.extent.width, images[i].image.num_layers);
}
}
}
static void