diff options
Diffstat (limited to 'source/blender/blenkernel/intern/image_gpu.c')
| -rw-r--r-- | source/blender/blenkernel/intern/image_gpu.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/source/blender/blenkernel/intern/image_gpu.c b/source/blender/blenkernel/intern/image_gpu.c index 57e7e9446d2..4d4013e5d1d 100644 --- a/source/blender/blenkernel/intern/image_gpu.c +++ b/source/blender/blenkernel/intern/image_gpu.c @@ -49,6 +49,21 @@ static void gpu_free_unused_buffers(void); static void image_free_gpu(Image *ima, const bool immediate); +/* Is the alpha of the `GPUTexture` for a given image/ibuf premultiplied. */ +bool BKE_image_has_gpu_texture_premultiplied_alpha(Image *image, ImBuf *ibuf) +{ + const bool type_is_premultiplied = (image == NULL) || ELEM(image->type, + IMA_TYPE_R_RESULT, + IMA_TYPE_COMPOSITE, + IMA_TYPE_UV_TEST); + const bool store_premultiplied = + type_is_premultiplied || + ((ibuf != NULL) && + (ibuf->rect_float ? (image ? (image->alpha_mode != IMA_ALPHA_STRAIGHT) : false) : + (image ? (image->alpha_mode == IMA_ALPHA_PREMUL) : true))); + return store_premultiplied; +} + /* -------------------------------------------------------------------- */ /** \name UDIM gpu texture * \{ */ @@ -198,8 +213,7 @@ static GPUTexture *gpu_texture_create_tile_array(Image *ima, ImBuf *main_ibuf) ImBuf *ibuf = BKE_image_acquire_ibuf(ima, &iuser, NULL); if (ibuf) { - const bool store_premultiplied = ibuf->rect_float ? (ima->alpha_mode != IMA_ALPHA_STRAIGHT) : - (ima->alpha_mode == IMA_ALPHA_PREMUL); + const bool store_premultiplied = BKE_image_has_gpu_texture_premultiplied_alpha(ima, ibuf); IMB_update_gpu_texture_sub(tex, ibuf, UNPACK2(tileoffset), @@ -330,9 +344,8 @@ static GPUTexture *image_get_gpu_texture(Image *ima, } else { const bool use_high_bitdepth = (ima->flag & IMA_HIGH_BITDEPTH); - const bool store_premultiplied = ibuf_intern->rect_float ? - (ima ? (ima->alpha_mode != IMA_ALPHA_STRAIGHT) : false) : - (ima ? (ima->alpha_mode == IMA_ALPHA_PREMUL) : true); + const bool store_premultiplied = BKE_image_has_gpu_texture_premultiplied_alpha(ima, + ibuf_intern); *tex = IMB_create_gpu_texture( ima->id.name + 2, ibuf_intern, use_high_bitdepth, store_premultiplied); @@ -642,6 +655,7 @@ static void gpu_texture_update_from_ibuf( int tex_stride = ibuf->x; int tex_offset = ibuf->channels * (y * ibuf->x + x); + const bool store_premultiplied = BKE_image_has_gpu_texture_premultiplied_alpha(ima, ibuf); if (rect_float == NULL) { /* Byte pixels. */ if (!IMB_colormanagement_space_is_data(ibuf->rect_colorspace)) { @@ -658,15 +672,12 @@ static void gpu_texture_update_from_ibuf( /* Convert to scene linear with sRGB compression, and premultiplied for * correct texture interpolation. */ - const bool store_premultiplied = (ima->alpha_mode == IMA_ALPHA_PREMUL); IMB_colormanagement_imbuf_to_byte_texture( rect, x, y, w, h, ibuf, compress_as_srgb, store_premultiplied); } } else { /* Float pixels. */ - const bool store_premultiplied = (ima->alpha_mode != IMA_ALPHA_STRAIGHT); - if (ibuf->channels != 4 || scaled || !store_premultiplied) { rect_float = (float *)MEM_mallocN(sizeof(float[4]) * w * h, __func__); if (rect_float == NULL) { |