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v3dv: compute tile size for framebuffer

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
This commit is contained in:
Iago Toral Quiroga 2019-12-13 10:31:05 +01:00 • committed by Marge Bot
parent cd24292fca
commit 51705fc015
2 changed files with 52 additions and 0 deletions
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46
src/broadcom/vulkan/v3dv_device.c
View file

@ -33,6 +33,9 @@
#include "v3dv_private.h"
#include "common/v3d_debug.h"
#include "broadcom/cle/v3dx_pack.h"
#include "compiler/glsl_types.h"
#include "drm-uapi/v3d_drm.h"
#include "vk_util.h"
@ -1294,6 +1297,47 @@ v3dv_DestroyBuffer(VkDevice _device,
vk_free2(&device->alloc, pAllocator, buffer);
}
static void
compute_tile_size_for_framebuffer(struct v3dv_framebuffer *framebuffer)
{
static const uint8_t tile_sizes[] = {
64, 64,
64, 32,
32, 32,
32, 16,
16, 16,
};
uint32_t tile_size_index = 0;
/* FIXME: MSAA */
if (framebuffer->attachment_count > 2)
tile_size_index += 2;
else if (framebuffer->attachment_count > 1)
tile_size_index += 1;
STATIC_ASSERT(RENDER_TARGET_MAXIMUM_32BPP == 0);
uint8_t max_bpp = RENDER_TARGET_MAXIMUM_32BPP;
for (uint32_t i = 0; i < framebuffer->attachment_count; i++) {
const struct v3dv_image_view *att = framebuffer->attachments[i];
if (att)
max_bpp = MAX2(max_bpp, att->internal_bpp);
}
framebuffer->internal_bpp = max_bpp;
tile_size_index += framebuffer->internal_bpp;
assert(tile_size_index < ARRAY_SIZE(tile_sizes));
framebuffer->tile_width = tile_sizes[tile_size_index * 2];
framebuffer->tile_height = tile_sizes[tile_size_index * 2 + 1];
framebuffer->draw_tiles_x =
DIV_ROUND_UP(framebuffer->width, framebuffer->tile_width);
framebuffer->draw_tiles_y =
DIV_ROUND_UP(framebuffer->height, framebuffer->tile_height);
}
VkResult
v3dv_CreateFramebuffer(VkDevice _device,
const VkFramebufferCreateInfo *pCreateInfo,
@ -1321,6 +1365,8 @@ v3dv_CreateFramebuffer(VkDevice _device,
v3dv_image_view_from_handle(pCreateInfo->pAttachments[i]);
}
compute_tile_size_for_framebuffer(framebuffer);
*pFramebuffer = v3dv_framebuffer_to_handle(framebuffer);
return VK_SUCCESS;

6
src/broadcom/vulkan/v3dv_private.h
View file

@ -326,6 +326,12 @@ struct v3dv_framebuffer {
uint32_t height;
uint32_t layers;
uint32_t internal_bpp;
uint32_t tile_width;
uint32_t tile_height;
uint32_t draw_tiles_x;
uint32_t draw_tiles_y;
uint32_t attachment_count;
struct v3dv_image_view *attachments[0];
};