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render/pixel-format: add support for block-based formats

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Some formats like sub-sampled YCbCr use a block of bytes to
store the color values for more than one pixel. Update our format
table to be able to handle such formats.
This commit is contained in:
Simon Ser 2023-05-08 22:17:26 +02:00
parent 78a1ac540e
commit 96f3f3c92e
9 changed files with 117 additions and 56 deletions
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10
render/vulkan/texture.c
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@ -49,7 +49,6 @@ static bool write_pixels(struct wlr_vk_texture *texture,
assert(format_info);
uint32_t bsize = 0;
unsigned bytespb = format_info->bpp / 8;
// deferred upload by transfer; using staging buffer
// calculate maximum side needed
@ -64,7 +63,7 @@ static bool write_pixels(struct wlr_vk_texture *texture,
assert((uint32_t)rect.x2 <= texture->wlr_texture.width);
assert((uint32_t)rect.y2 <= texture->wlr_texture.height);
bsize += height * bytespb * width;
bsize += height * pixel_format_info_min_stride(format_info, width);
}
VkBufferImageCopy *copies = calloc((size_t)rects_len, sizeof(*copies));
@ -74,7 +73,7 @@ static bool write_pixels(struct wlr_vk_texture *texture,
}
// get staging buffer
struct wlr_vk_buffer_span span = vulkan_get_stage_span(renderer, bsize, bytespb);
struct wlr_vk_buffer_span span = vulkan_get_stage_span(renderer, bsize, format_info->bytes_per_block);
if (!span.buffer || span.alloc.size != bsize) {
wlr_log(WLR_ERROR, "Failed to retrieve staging buffer");
free(copies);
@ -100,13 +99,12 @@ static bool write_pixels(struct wlr_vk_texture *texture,
uint32_t height = rect.y2 - rect.y1;
uint32_t src_x = rect.x1;
uint32_t src_y = rect.y1;
uint32_t packed_stride = bytespb * width;
uint32_t packed_stride = (uint32_t)pixel_format_info_min_stride(format_info, width);
// write data into staging buffer span
const char *pdata = vdata; // data iterator
pdata += stride * src_y;
pdata += bytespb * src_x;
pdata += format_info->bytes_per_block * src_x;
if (src_x == 0 && width == texture->wlr_texture.width &&
stride == packed_stride) {
memcpy(map, pdata, packed_stride * height);