diff options
Diffstat (limited to 'src/gallium/state_trackers/xorg/xorg_exa_tgsi.c')
-rw-r--r-- | src/gallium/state_trackers/xorg/xorg_exa_tgsi.c | 75 |
1 files changed, 71 insertions, 4 deletions
diff --git a/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c b/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c index 3c90dab3c5..9503891701 100644 --- a/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c +++ b/src/gallium/state_trackers/xorg/xorg_exa_tgsi.c @@ -278,6 +278,70 @@ create_vs(struct pipe_context *pipe, } static void * +create_yuv_shader(struct pipe_context *pipe, struct ureg_program *ureg) +{ + struct ureg_src y_sampler, u_sampler, v_sampler; + struct ureg_src pos; + struct ureg_src matrow0, matrow1, matrow2; + struct ureg_dst y, u, v, rgb; + struct ureg_dst out = ureg_DECL_output(ureg, + TGSI_SEMANTIC_COLOR, + 0); + + pos = ureg_DECL_fs_input(ureg, + TGSI_SEMANTIC_GENERIC, + 0, + TGSI_INTERPOLATE_PERSPECTIVE); + + rgb = ureg_DECL_temporary(ureg); + y = ureg_DECL_temporary(ureg); + u = ureg_DECL_temporary(ureg); + v = ureg_DECL_temporary(ureg); + + y_sampler = ureg_DECL_sampler(ureg, 0); + u_sampler = ureg_DECL_sampler(ureg, 1); + v_sampler = ureg_DECL_sampler(ureg, 2); + + matrow0 = ureg_DECL_constant(ureg, 0); + matrow1 = ureg_DECL_constant(ureg, 1); + matrow2 = ureg_DECL_constant(ureg, 2); + + ureg_TEX(ureg, y, + TGSI_TEXTURE_2D, pos, y_sampler); + ureg_TEX(ureg, u, + TGSI_TEXTURE_2D, pos, u_sampler); + ureg_TEX(ureg, v, + TGSI_TEXTURE_2D, pos, v_sampler); + + ureg_MUL(ureg, rgb, + ureg_scalar(ureg_src(y), TGSI_SWIZZLE_X), + matrow0); + ureg_MAD(ureg, rgb, + ureg_scalar(ureg_src(u), TGSI_SWIZZLE_X), + matrow1, + ureg_src(rgb)); + ureg_MAD(ureg, rgb, + ureg_scalar(ureg_src(v), TGSI_SWIZZLE_X), + matrow2, + ureg_src(rgb)); + + /* rgb.a = 1; */ + ureg_MOV(ureg, ureg_writemask(rgb, TGSI_WRITEMASK_W), + ureg_scalar(matrow0, TGSI_SWIZZLE_X)); + + ureg_MOV(ureg, out, ureg_src(rgb)); + + ureg_release_temporary(ureg, rgb); + ureg_release_temporary(ureg, y); + ureg_release_temporary(ureg, u); + ureg_release_temporary(ureg, v); + + ureg_END(ureg); + + return ureg_create_shader_and_destroy(ureg, pipe); +} + +static void * create_fs(struct pipe_context *pipe, unsigned fs_traits) { @@ -293,13 +357,14 @@ create_fs(struct pipe_context *pipe, boolean is_lingrad = fs_traits & FS_LINGRAD_FILL; boolean is_radgrad = fs_traits & FS_RADGRAD_FILL; unsigned comp_alpha = fs_traits & FS_COMPONENT_ALPHA; + boolean is_yuv = fs_traits & FS_YUV; ureg = ureg_create(TGSI_PROCESSOR_FRAGMENT); if (ureg == NULL) return 0; - /* it has to be either a fill or a composite op */ - debug_assert(is_fill ^ is_composite); + /* it has to be either a fill, a composite op or a yuv conversion */ + debug_assert((is_fill ^ is_composite) ^ is_yuv); out = ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, @@ -311,8 +376,7 @@ create_fs(struct pipe_context *pipe, TGSI_SEMANTIC_GENERIC, 0, TGSI_INTERPOLATE_PERSPECTIVE); - } else { - debug_assert(is_fill); + } else if (is_fill) { if (is_solid) src_input = ureg_DECL_fs_input(ureg, TGSI_SEMANTIC_COLOR, @@ -323,6 +387,9 @@ create_fs(struct pipe_context *pipe, TGSI_SEMANTIC_POSITION, 0, TGSI_INTERPOLATE_PERSPECTIVE); + } else { + debug_assert(is_yuv); + return create_yuv_shader(pipe, ureg); } if (has_mask) { |