| .function compositor_orc_splat_u32 |
| .dest 4 d1 guint32 |
| .param 4 p1 guint32 |
| |
| copyl d1, p1 |
| |
| .function compositor_orc_memcpy_u32 |
| .dest 4 d1 guint32 |
| .source 4 s1 guint32 |
| |
| copyl d1, s1 |
| |
| .function compositor_orc_blend_u8 |
| .flags 2d |
| .dest 1 d1 guint8 |
| .source 1 s1 guint8 |
| .param 2 p1 |
| .temp 2 t1 |
| .temp 2 t2 |
| .const 1 c1 8 |
| |
| convubw t1, d1 |
| convubw t2, s1 |
| subw t2, t2, t1 |
| mullw t2, t2, p1 |
| shlw t1, t1, c1 |
| addw t2, t1, t2 |
| shruw t2, t2, c1 |
| convsuswb d1, t2 |
| |
| |
| .function compositor_orc_blend_argb |
| .flags 2d |
| .dest 4 d guint8 |
| .source 4 s guint8 |
| .param 2 alpha |
| .temp 4 t |
| .temp 2 tw |
| .temp 1 tb |
| .temp 4 a |
| .temp 8 d_wide |
| .temp 8 s_wide |
| .temp 8 a_wide |
| .const 4 a_alpha 0x000000ff |
| |
| loadl t, s |
| convlw tw, t |
| convwb tb, tw |
| splatbl a, tb |
| x4 convubw a_wide, a |
| x4 mullw a_wide, a_wide, alpha |
| x4 shruw a_wide, a_wide, 8 |
| x4 convubw s_wide, t |
| loadl t, d |
| x4 convubw d_wide, t |
| x4 subw s_wide, s_wide, d_wide |
| x4 mullw s_wide, s_wide, a_wide |
| x4 div255w s_wide, s_wide |
| x4 addw d_wide, d_wide, s_wide |
| x4 convwb t, d_wide |
| orl t, t, a_alpha |
| storel d, t |
| |
| .function compositor_orc_blend_bgra |
| .flags 2d |
| .dest 4 d guint8 |
| .source 4 s guint8 |
| .param 2 alpha |
| .temp 4 t |
| .temp 4 t2 |
| .temp 2 tw |
| .temp 1 tb |
| .temp 4 a |
| .temp 8 d_wide |
| .temp 8 s_wide |
| .temp 8 a_wide |
| .const 4 a_alpha 0xff000000 |
| |
| loadl t, s |
| shrul t2, t, 24 |
| convlw tw, t2 |
| convwb tb, tw |
| splatbl a, tb |
| x4 convubw a_wide, a |
| x4 mullw a_wide, a_wide, alpha |
| x4 shruw a_wide, a_wide, 8 |
| x4 convubw s_wide, t |
| loadl t, d |
| x4 convubw d_wide, t |
| x4 subw s_wide, s_wide, d_wide |
| x4 mullw s_wide, s_wide, a_wide |
| x4 div255w s_wide, s_wide |
| x4 addw d_wide, d_wide, s_wide |
| x4 convwb t, d_wide |
| orl t, t, a_alpha |
| storel d, t |
| |
| |
| .function compositor_orc_overlay_argb |
| .flags 2d |
| .dest 4 d guint8 |
| .source 4 s guint8 |
| .param 2 alpha |
| .temp 4 t |
| .temp 2 tw |
| .temp 1 tb |
| .temp 8 alpha_s |
| .temp 8 alpha_s_inv |
| .temp 8 alpha_d |
| .temp 4 a |
| .temp 8 d_wide |
| .temp 8 s_wide |
| .const 4 xfs 0xffffffff |
| .const 4 a_alpha 0x000000ff |
| .const 4 a_alpha_inv 0xffffff00 |
| |
| # calc source alpha as alpha_s = alpha_s * alpha / 256 |
| loadl t, s |
| convlw tw, t |
| convwb tb, tw |
| splatbl a, tb |
| x4 convubw alpha_s, a |
| x4 mullw alpha_s, alpha_s, alpha |
| x4 shruw alpha_s, alpha_s, 8 |
| x4 convubw s_wide, t |
| x4 mullw s_wide, s_wide, alpha_s |
| |
| # calc destination alpha as alpha_d = (255-alpha_s) * alpha_d / 255 |
| loadpl a, xfs |
| x4 convubw alpha_s_inv, a |
| x4 subw alpha_s_inv, alpha_s_inv, alpha_s |
| loadl t, d |
| convlw tw, t |
| convwb tb, tw |
| splatbl a, tb |
| x4 convubw alpha_d, a |
| x4 mullw alpha_d, alpha_d, alpha_s_inv |
| x4 div255w alpha_d, alpha_d |
| x4 convubw d_wide, t |
| x4 mullw d_wide, d_wide, alpha_d |
| |
| # calc final pixel as pix_d = pix_s*alpha_s + pix_d*alpha_d*(255-alpha_s)/255 |
| x4 addw d_wide, d_wide, s_wide |
| |
| # calc the final destination alpha_d = alpha_s + alpha_d * (255-alpha_s)/255 |
| x4 addw alpha_d, alpha_d, alpha_s |
| |
| # now normalize the pix_d by the final alpha to make it associative |
| x4 divluw, d_wide, d_wide, alpha_d |
| |
| # pack the new alpha into the correct spot |
| x4 convwb t, d_wide |
| andl t, t, a_alpha_inv |
| x4 convwb a, alpha_d |
| andl a, a, a_alpha |
| orl t, t, a |
| storel d, t |
| |
| .function compositor_orc_overlay_bgra |
| .flags 2d |
| .dest 4 d guint8 |
| .source 4 s guint8 |
| .param 2 alpha |
| .temp 4 t |
| .temp 4 t2 |
| .temp 2 tw |
| .temp 1 tb |
| .temp 8 alpha_s |
| .temp 8 alpha_s_inv |
| .temp 8 alpha_d |
| .temp 4 a |
| .temp 8 d_wide |
| .temp 8 s_wide |
| .const 4 xfs 0xffffffff |
| .const 4 a_alpha 0xff000000 |
| .const 4 a_alpha_inv 0x00ffffff |
| |
| # calc source alpha as alpha_s = alpha_s * alpha / 256 |
| loadl t, s |
| shrul t2, t, 24 |
| convlw tw, t2 |
| convwb tb, tw |
| splatbl a, tb |
| x4 convubw alpha_s, a |
| x4 mullw alpha_s, alpha_s, alpha |
| x4 shruw alpha_s, alpha_s, 8 |
| x4 convubw s_wide, t |
| x4 mullw s_wide, s_wide, alpha_s |
| |
| # calc destination alpha as alpha_d = (255-alpha_s) * alpha_d / 255 |
| loadpl a, xfs |
| x4 convubw alpha_s_inv, a |
| x4 subw alpha_s_inv, alpha_s_inv, alpha_s |
| loadl t, d |
| shrul t2, t, 24 |
| convlw tw, t2 |
| convwb tb, tw |
| splatbl a, tb |
| x4 convubw alpha_d, a |
| x4 mullw alpha_d, alpha_d, alpha_s_inv |
| x4 div255w alpha_d, alpha_d |
| x4 convubw d_wide, t |
| x4 mullw d_wide, d_wide, alpha_d |
| |
| # calc final pixel as pix_d = pix_s*alpha_s + pix_d*alpha_d*(255-alpha_s)/255 |
| x4 addw d_wide, d_wide, s_wide |
| |
| # calc the final destination alpha_d = alpha_s + alpha_d * (255-alpha_s)/255 |
| x4 addw alpha_d, alpha_d, alpha_s |
| |
| # now normalize the pix_d by the final alpha to make it associative |
| x4 divluw, d_wide, d_wide, alpha_d |
| |
| # pack the new alpha into the correct spot |
| x4 convwb t, d_wide |
| andl t, t, a_alpha_inv |
| x4 convwb a, alpha_d |
| andl a, a, a_alpha |
| orl t, t, a |
| storel d, t |
