Mesa (master): radv: Fix 3d blits.
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gitlab-mirror at kemper.freedesktop.org
Thu Aug 27 10:22:57 UTC 2020
Module: Mesa
Branch: master
Commit: 4d40a719b07670b64d6ed4313818ac8d309bb77f
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4d40a719b07670b64d6ed4313818ac8d309bb77f
Author: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Date: Tue Aug 25 19:12:37 2020 +0200
radv: Fix 3d blits.
- the offsets are inclusive-exclusive so the +1 was wrong
- Since the GPU doesn't do the interpolation on depth (as we render
per layer), we have to add an offset for the pixel center.
CC: mesa-stable
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3073
Reviewed-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6458>
---
src/amd/vulkan/radv_meta_blit.c | 42 ++++++++++++++++++++++++-----------------
1 file changed, 25 insertions(+), 17 deletions(-)
diff --git a/src/amd/vulkan/radv_meta_blit.c b/src/amd/vulkan/radv_meta_blit.c
index cf43b2fc41b..71cea3b0a31 100644
--- a/src/amd/vulkan/radv_meta_blit.c
+++ b/src/amd/vulkan/radv_meta_blit.c
@@ -299,8 +299,8 @@ meta_emit_blit(struct radv_cmd_buffer *cmd_buffer,
struct radv_image *src_image,
struct radv_image_view *src_iview,
VkImageLayout src_image_layout,
- VkOffset3D src_offset_0,
- VkOffset3D src_offset_1,
+ float src_offset_0[3],
+ float src_offset_1[3],
struct radv_image *dest_image,
struct radv_image_view *dest_iview,
VkImageLayout dest_image_layout,
@@ -319,11 +319,11 @@ meta_emit_blit(struct radv_cmd_buffer *cmd_buffer,
assert(src_image->info.samples == dest_image->info.samples);
float vertex_push_constants[5] = {
- (float)src_offset_0.x / (float)src_width,
- (float)src_offset_0.y / (float)src_height,
- (float)src_offset_1.x / (float)src_width,
- (float)src_offset_1.y / (float)src_height,
- (float)src_offset_0.z / (float)src_depth,
+ src_offset_0[0] / (float)src_width,
+ src_offset_0[1] / (float)src_height,
+ src_offset_1[0] / (float)src_width,
+ src_offset_1[1] / (float)src_height,
+ src_offset_0[2] / (float)src_depth,
};
radv_CmdPushConstants(radv_cmd_buffer_to_handle(cmd_buffer),
@@ -599,12 +599,19 @@ void radv_CmdBlitImage(
}
bool flip_z = flip_coords(&src_start, &src_end, &dst_start, &dst_end);
- float src_z_step = (float)(src_end + 1 - src_start) /
- (float)(dst_end + 1 - dst_start);
+ float src_z_step = (float)(src_end - src_start) /
+ (float)(dst_end - dst_start);
+
+ /* There is no interpolation to the pixel center during
+ * rendering, so add the 0.5 offset ourselves here. */
+ float depth_center_offset = 0;
+ if (src_image->type == VK_IMAGE_TYPE_3D)
+ depth_center_offset = 0.5 / (dst_end - dst_start) * (src_end - src_start);
if (flip_z) {
src_start = src_end;
src_z_step *= -1;
+ depth_center_offset *= -1;
}
unsigned src_x0 = pRegions[r].srcOffsets[0].x;
@@ -635,15 +642,16 @@ void radv_CmdBlitImage(
.x = dst_x1,
.y = dst_y1,
};
- VkOffset3D src_offset_0 = {
- .x = src_x0,
- .y = src_y0,
- .z = src_start + i * src_z_step,
+
+ float src_offset_0[3] = {
+ src_x0,
+ src_y0,
+ src_start + i * src_z_step + depth_center_offset,
};
- VkOffset3D src_offset_1 = {
- .x = src_x1,
- .y = src_y1,
- .z = src_start + i * src_z_step,
+ float src_offset_1[3] = {
+ src_x1,
+ src_y1,
+ src_start + i * src_z_step + depth_center_offset,
};
const uint32_t dest_array_slice = dst_start + i;
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