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24 commits

Author SHA1 Message Date
llyyr
604fcdb1db render/vulkan: clip negative values before applying transfer function 
Not all eotf or eotf inverse are well defined for values outside the
intended domain, so just ignore it and clamp it away.

An alternative solution would be to use sign preserving pow here (i.e.
sign(x) * pow(abs(x), p)), however I'm not sure that makes sense or is
defined anywhere. Negative values here are likely a result of colors
being outside the gamut range, so clipping them to 0 is more correct
than mirroring from 0.
 2025-10-29 03:09:11 +05:30
llyyr
6e1c8748ff render: introduce bt.1886 transfer function 2025-10-04 18:13:37 +05:30
Félix Poisot
c2d9ae2142 render: introduce Gamma 2.2 color transform 2025-10-03 19:39:17 +00:00
Simon Ser
ae85c31176 render/vulkan: add luminance multiplier for texture shader 2025-06-18 19:37:55 +00:00
Simon Ser
a8144088df render/vulkan: add support for PQ for textures 2025-06-18 19:37:55 +00:00
Simon Ser
3a51a5c623 render/vulkan: add texture color transformation matrix 2025-06-18 19:37:55 +00:00
Simon Ser
56d95c2ecb render/vulkan: introduce wlr_vk_frag_texture_pcr_data 
Contains UBOs for texture.frag.
 2025-06-18 19:37:55 +00:00
Simon Ser
ec422ac389 render/vulkan: prepare texture shader for new transforms 2025-06-18 19:37:55 +00:00
Simon Ser
0ee0452af0 render/color, render/vulkan: add EXT_LINEAR to enum wlr_color_transfer_function 2025-06-18 19:37:55 +00:00
Simon Ser
7b6eec530c render/vulkan: add luminance multipler for output shader 2025-06-18 00:11:33 +02:00
Simon Ser
8430a1922d render/vulkan: add PQ inverse EOTF to output shader 2025-06-18 00:09:25 +02:00
Simon Ser
2ea0e386c4 render/vulkan: add color transformation matrix 2025-06-17 18:47:50 +02:00
Simon Ser
e83b06e732 render/vulkan: unify alpha pre-multiplication in output shader 
Instead of handling alpha pre-multiplication in each branch, add
some common logic before and after handling OUTPUT_TRANSFORM.
 2025-02-23 15:41:23 +01:00
Manuel Stoeckl
adbfd3c321 render/vulkan: add lut3d output shader option 
While a corresponding pipeline is created, it is not yet used.
 2024-04-26 17:17:36 +00:00
Manuel Stoeckl
c64144a39b render/vulkan: add dummy 3d lookup table to output shader 
Later commits will add shader options that use a real 3d
lookup table.
 2024-04-26 17:17:36 +00:00
Félix Poisot
5ae8ce807a render/vulkan: correct sRBG gamma expansion in shader 2024-01-26 13:50:55 +00:00
Simon Ser
5adf325333 render/vulkan: undo alpha premult before sRGB encoding/decoding 
sRGB encoding/decoding needs to happen with straight alpha, not
pre-multiplied alpha.
 2023-10-17 17:28:56 +02:00
Simon Ser
28e8d92263 render/vulkan: document TEXTURE_TRANSFORM_* in shader 2023-05-26 12:29:30 +00:00
Manuel Stoeckl
10dd416694 render/vulkan: allow rendering to non-8-bit buffers 
This is implemented by a two-subpass rendering scheme; the first
subpass draws (and blends) onto a linear R16G16B16A16_SFLOAT buffer,
while the second subpass performs linear->srgb conversion, writing
onto the actual output buffer.
 2023-05-12 15:09:02 +00:00
Manuel Stoeckl
3ed69b4946 render/vulkan: add support for RGB565 texture format 
Since this does not have a matching _SRGB-type vulkan format, add a
new shader variant/pipeline to perform the sRGB->linear texture
conversion.
 2022-11-25 14:19:27 +00:00
Joshua Ashton
f132d66816 render/vulkan: Optimize vertex shader 
This ends up being a horrible global load:

  s_getpc_b64   s[4:5]                                  // 000000000000: BE841C80
  v_add_u32     v0, s2, v0                              // 000000000004: 68000002
  v_sub_co_u32  v1, vcc, 0, v0                          // 000000000008: 34020080
  v_max_i32     v1, v0, v1                              // 00000000000C: 1A020300
  v_and_b32     v1, 3, v1                               // 000000000010: 26020283
  v_cmp_lt_i32  s[0:1], v0, 0                           // 000000000014: D0C10000 00010100
  v_sub_co_u32  v0, vcc, 0, v1                          // 00000000001C: 34000280
  v_cndmask_b32  v0, v1, v0, s[0:1]                     // 000000000020: D1000000 00020101
  v_lshlrev_b32  v1, 3, v0                              // 000000000028: 24020083
  v_mad_u32_u24  v0, v0, 8, 4                           // 00000000002C: D1C30000 02111100
  v_min_u32     v1, 32, v1                              // 000000000034: 1C0202A0
  v_min_u32     v0, 32, v0                              // 000000000038: 1C0000A0
  s_getpc_b64   s[0:1]                                  // 00000000003C: BE801C00
  s_add_u32     s0, s0, 0x0000003c                      // 000000000040: 8000FF00 0000003C
  s_addc_u32    s1, s1, 0                               // 000000000048: 82018001
  global_load_dword  v1, v[1:2], s[0:1]                 // 00000000004C: DC508000 01000001
  global_load_dword  v0, v[0:1], s[0:1]                 // 000000000054: DC508000 00000000
  v_mov_b32     v2, 0                                   // 00000000005C: 7E040280
  v_mov_b32     v3, 1.0                                 // 000000000060: 7E0602F2
  s_waitcnt     vmcnt(0)                                // 000000000064: BF8C0F70
  exp           pos0, v1, v0, v2, v3 done               // 000000000068: C40008CF 03020001
  exp           param0, off, off, off, off              // 000000000070: C4000200 00000000
  s_endpgm                                              // 000000000078: BF810000
  v_cndmask_b32  v0, s0, v0, vcc                        // 00000000007C: 00000000
  v_cndmask_b32  v0, s0, v0, vcc                        // 000000000080: 00000000
  v_add_f16     v192, s0, v0                            // 000000000084: 3F800000
  v_cndmask_b32  v0, s0, v0, vcc                        // 000000000088: 00000000
  v_add_f16     v192, s0, v0                            // 00000000008C: 3F800000
  v_add_f16     v192, s0, v0                            // 000000000090: 3F800000
  v_cndmask_b32  v0, s0, v0, vcc                        // 000000000094: 00000000
  v_add_f16     v192, s0, v0                            // 000000000098: 3F800000
  v_cndmask_b32  v0, s0, v0, vcc                        // 00000000009C: 00000000

With some bit magic, we can get something much nicer:

  v_add_u32     v0, s2, v0                              // 000000000000: 68000002
  v_add_u32     v1, 1, v0                               // 000000000004: 68020081
  v_and_b32     v1, 2, v1                               // 000000000008: 26020282
  v_cvt_f32_i32  v1, v1                                 // 00000000000C: 7E020B01
  v_mul_f32     v1, 0.5, v1                             // 000000000010: 0A0202F0
  v_and_b32     v0, 2, v0                               // 000000000014: 26000082
  v_cvt_f32_i32  v0, v0                                 // 000000000018: 7E000B00
  v_mul_f32     v0, 0.5, v0                             // 00000000001C: 0A0000F0
  v_mov_b32     v2, 0                                   // 000000000020: 7E040280
  v_mov_b32     v3, 1.0                                 // 000000000024: 7E0602F2
  exp           pos0, v1, v0, v2, v3 done               // 000000000028: C40008CF 03020001
  exp           param0, off, off, off, off              // 000000000030: C4000200 00000000
  s_endpgm                                              // 000000000038: BF810000

The above output was based on just shoving it in ShaderPlayground -- I was not able to use pipeline feedback as I was unable to get RenderDoc working due to the EXT_physical_device_drm requirement.

I additionally considered using >> 1 instead of * 0.5, but AMD has dedicated modifiers to merge a * 0.5, * 2.0, etc in a single instruction. (Albeit, not taken advantage of in the code above, but might with ACO)

Signed-off-by: Joshua Ashton <joshua@froggi.es>
 2021-11-23 15:46:24 +00:00
Simon Ser
5332935afc render/vulkan: quiet glslangValidator 
This suppresses the output filename printed to stdout. Errors and
warnings should still be printed to stderr as usual.
 2021-11-23 15:38:56 +00:00
Joshua Ashton
b62ce3c3c8 render/vulkan: Use image view swizzles instead of shader hack 
Signed-off-by: Joshua Ashton <joshua@froggi.es>
 2021-10-18 15:57:46 +02:00
nyorain
8e34692250 render/vulkan: add Vulkan renderer 
This new renderer is implemented with the existing wlr_renderer API
(which is known to be sub-optimal for some operations). It's not
used by default, but users can opt-in by setting WLR_RENDERER=vulkan.

The renderer depends on VK_EXT_image_drm_format_modifier and
VK_EXT_physical_device_drm.

Co-authored-by: Simon Ser <contact@emersion.fr>
Co-authored-by: Jan Beich <jbeich@FreeBSD.org>
 2021-10-18 11:51:13 +02:00