diff options
| -rw-r--r-- | src/mesa/state_tracker/st_mesa_to_tgsi.c | 106 |
1 files changed, 60 insertions, 46 deletions
diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c b/src/mesa/state_tracker/st_mesa_to_tgsi.c index 807d21a7197..bb52d2d10f4 100644 --- a/src/mesa/state_tracker/st_mesa_to_tgsi.c +++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c @@ -739,6 +739,65 @@ emit_inverted_wpos( struct st_translate *t, /** + * Emit fragment position/ooordinate code. + */ +static void +emit_wpos(struct st_context *st, + struct st_translate *t, + const struct gl_program *program, + struct ureg_program *ureg) +{ + const struct gl_fragment_program *fp = + (const struct gl_fragment_program *) program; + struct pipe_screen *pscreen = st->pipe->screen; + boolean invert = FALSE; + + if (fp->OriginUpperLeft) { + if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT)) { + } + else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT)) { + ureg_property_fs_coord_origin(ureg, TGSI_FS_COORD_ORIGIN_LOWER_LEFT); + invert = TRUE; + } + else + assert(0); + } + else { + if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT)) + ureg_property_fs_coord_origin(ureg, TGSI_FS_COORD_ORIGIN_LOWER_LEFT); + else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT)) + invert = TRUE; + else + assert(0); + } + + if (fp->PixelCenterInteger) { + if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER)) + ureg_property_fs_coord_pixel_center(ureg, TGSI_FS_COORD_PIXEL_CENTER_INTEGER); + else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER)) + emit_adjusted_wpos(t, program, invert ? 0.5f : -0.5f); + else + assert(0); + } + else { + if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER)) { + } + else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER)) { + ureg_property_fs_coord_pixel_center(ureg, TGSI_FS_COORD_PIXEL_CENTER_INTEGER); + emit_adjusted_wpos(t, program, invert ? -0.5f : 0.5f); + } + else + assert(0); + } + + /* we invert after adjustment so that we avoid the MOV to temporary, + * and reuse the adjustment ADD instead */ + if (invert) + emit_inverted_wpos(t, program); +} + + +/** * OpenGL's fragment gl_FrontFace input is 1 for front-facing, 0 for back. * TGSI uses +1 for front, -1 for back. * This function converts the TGSI value to the GL value. Simply clamping/ @@ -831,7 +890,6 @@ st_translate_mesa_program( * Declare input attributes. */ if (procType == TGSI_PROCESSOR_FRAGMENT) { - struct gl_fragment_program* fp = (struct gl_fragment_program*)program; for (i = 0; i < numInputs; i++) { if (program->InputFlags[0] & PROG_PARAM_BIT_CYL_WRAP) { t->inputs[i] = ureg_DECL_fs_input_cyl(ureg, @@ -852,51 +910,7 @@ st_translate_mesa_program( /* Must do this after setting up t->inputs, and before * emitting constant references, below: */ - struct pipe_screen* pscreen = st_context(ctx)->pipe->screen; - boolean invert = FALSE; - - if (fp->OriginUpperLeft) { - if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT)) { - } - else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT)) { - ureg_property_fs_coord_origin(ureg, TGSI_FS_COORD_ORIGIN_LOWER_LEFT); - invert = TRUE; - } - else - assert(0); - } - else { - if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT)) - ureg_property_fs_coord_origin(ureg, TGSI_FS_COORD_ORIGIN_LOWER_LEFT); - else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT)) - invert = TRUE; - else - assert(0); - } - - if (fp->PixelCenterInteger) { - if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER)) - ureg_property_fs_coord_pixel_center(ureg, TGSI_FS_COORD_PIXEL_CENTER_INTEGER); - else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER)) - emit_adjusted_wpos(t, program, invert ? 0.5f : -0.5f); - else - assert(0); - } - else { - if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER)) { - } - else if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER)) { - ureg_property_fs_coord_pixel_center(ureg, TGSI_FS_COORD_PIXEL_CENTER_INTEGER); - emit_adjusted_wpos(t, program, invert ? -0.5f : 0.5f); - } - else - assert(0); - } - - /* we invert after adjustment so that we avoid the MOV to temporary, - * and reuse the adjustment ADD instead */ - if (invert) - emit_inverted_wpos(t, program); + emit_wpos(st_context(ctx), t, program, ureg); } if (program->InputsRead & FRAG_BIT_FACE) { |