diff options
Diffstat (limited to 'src/gallium/drivers/svga/svga_pipe_blend.c')
| -rw-r--r-- | src/gallium/drivers/svga/svga_pipe_blend.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_pipe_blend.c b/src/gallium/drivers/svga/svga_pipe_blend.c new file mode 100644 index 00000000000..855d228755f --- /dev/null +++ b/src/gallium/drivers/svga/svga_pipe_blend.c @@ -0,0 +1,246 @@ +/********************************************************** + * Copyright 2008-2009 VMware, Inc. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, + * modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + **********************************************************/ + +#include "pipe/p_inlines.h" +#include "pipe/p_defines.h" +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "svga_context.h" +#include "svga_state.h" + +#include "svga_hw_reg.h" + + +static INLINE unsigned +svga_translate_blend_factor(unsigned factor) +{ + switch (factor) { + case PIPE_BLENDFACTOR_ZERO: return SVGA3D_BLENDOP_ZERO; + case PIPE_BLENDFACTOR_SRC_ALPHA: return SVGA3D_BLENDOP_SRCALPHA; + case PIPE_BLENDFACTOR_ONE: return SVGA3D_BLENDOP_ONE; + case PIPE_BLENDFACTOR_SRC_COLOR: return SVGA3D_BLENDOP_SRCCOLOR; + case PIPE_BLENDFACTOR_INV_SRC_COLOR: return SVGA3D_BLENDOP_INVSRCCOLOR; + case PIPE_BLENDFACTOR_DST_COLOR: return SVGA3D_BLENDOP_DESTCOLOR; + case PIPE_BLENDFACTOR_INV_DST_COLOR: return SVGA3D_BLENDOP_INVDESTCOLOR; + case PIPE_BLENDFACTOR_INV_SRC_ALPHA: return SVGA3D_BLENDOP_INVSRCALPHA; + case PIPE_BLENDFACTOR_DST_ALPHA: return SVGA3D_BLENDOP_DESTALPHA; + case PIPE_BLENDFACTOR_INV_DST_ALPHA: return SVGA3D_BLENDOP_INVDESTALPHA; + case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: return SVGA3D_BLENDOP_SRCALPHASAT; + case PIPE_BLENDFACTOR_CONST_COLOR: return SVGA3D_BLENDOP_BLENDFACTOR; + case PIPE_BLENDFACTOR_INV_CONST_COLOR: return SVGA3D_BLENDOP_INVBLENDFACTOR; + case PIPE_BLENDFACTOR_CONST_ALPHA: return SVGA3D_BLENDOP_BLENDFACTOR; /* ? */ + case PIPE_BLENDFACTOR_INV_CONST_ALPHA: return SVGA3D_BLENDOP_INVBLENDFACTOR; /* ? */ + default: + assert(0); + return SVGA3D_BLENDOP_ZERO; + } +} + +static INLINE unsigned +svga_translate_blend_func(unsigned mode) +{ + switch (mode) { + case PIPE_BLEND_ADD: return SVGA3D_BLENDEQ_ADD; + case PIPE_BLEND_SUBTRACT: return SVGA3D_BLENDEQ_SUBTRACT; + case PIPE_BLEND_REVERSE_SUBTRACT: return SVGA3D_BLENDEQ_REVSUBTRACT; + case PIPE_BLEND_MIN: return SVGA3D_BLENDEQ_MINIMUM; + case PIPE_BLEND_MAX: return SVGA3D_BLENDEQ_MAXIMUM; + default: + assert(0); + return SVGA3D_BLENDEQ_ADD; + } +} + + +static void * +svga_create_blend_state(struct pipe_context *pipe, + const struct pipe_blend_state *templ) +{ + struct svga_blend_state *blend = CALLOC_STRUCT( svga_blend_state ); + unsigned i; + + + /* Fill in the per-rendertarget blend state. We currently only + * have one rendertarget. + */ + for (i = 0; i < 1; i++) { + /* No way to set this in SVGA3D, and no way to correctly implement it on + * top of D3D9 API. Instead we try to simulate with various blend modes. + */ + if (templ->logicop_enable) { + switch (templ->logicop_func) { + case PIPE_LOGICOP_XOR: + blend->need_white_fragments = TRUE; + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_ONE; + blend->rt[i].dstblend = SVGA3D_BLENDOP_ONE; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_SUBTRACT; + break; + case PIPE_LOGICOP_CLEAR: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_ZERO; + blend->rt[i].dstblend = SVGA3D_BLENDOP_ZERO; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_MINIMUM; + break; + case PIPE_LOGICOP_COPY: + blend->rt[i].blend_enable = FALSE; + break; + case PIPE_LOGICOP_COPY_INVERTED: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_INVSRCCOLOR; + blend->rt[i].dstblend = SVGA3D_BLENDOP_ZERO; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_ADD; + break; + case PIPE_LOGICOP_NOOP: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_ZERO; + blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_ADD; + break; + case PIPE_LOGICOP_SET: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_ONE; + blend->rt[i].dstblend = SVGA3D_BLENDOP_ONE; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_MAXIMUM; + break; + case PIPE_LOGICOP_INVERT: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_INVSRCCOLOR; + blend->rt[i].dstblend = SVGA3D_BLENDOP_ZERO; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_ADD; + break; + case PIPE_LOGICOP_AND: + /* Approximate with minimum - works for the 0 & anything case: */ + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_SRCCOLOR; + blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_MINIMUM; + break; + case PIPE_LOGICOP_AND_REVERSE: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_SRCCOLOR; + blend->rt[i].dstblend = SVGA3D_BLENDOP_INVDESTCOLOR; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_MINIMUM; + break; + case PIPE_LOGICOP_AND_INVERTED: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_INVSRCCOLOR; + blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_MINIMUM; + break; + case PIPE_LOGICOP_OR: + /* Approximate with maximum - works for the 1 | anything case: */ + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_SRCCOLOR; + blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_MAXIMUM; + break; + case PIPE_LOGICOP_OR_REVERSE: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_SRCCOLOR; + blend->rt[i].dstblend = SVGA3D_BLENDOP_INVDESTCOLOR; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_MAXIMUM; + break; + case PIPE_LOGICOP_OR_INVERTED: + blend->rt[i].blend_enable = TRUE; + blend->rt[i].srcblend = SVGA3D_BLENDOP_INVSRCCOLOR; + blend->rt[i].dstblend = SVGA3D_BLENDOP_DESTCOLOR; + blend->rt[i].blendeq = SVGA3D_BLENDEQ_MAXIMUM; + break; + case PIPE_LOGICOP_NAND: + case PIPE_LOGICOP_NOR: + case PIPE_LOGICOP_EQUIV: + /* Fill these in with plausible values */ + blend->rt[i].blend_enable = FALSE; + break; + default: + assert(0); + break; + } + } + else { + blend->rt[i].blend_enable = templ->blend_enable; + + if (templ->blend_enable) { + blend->rt[i].srcblend = svga_translate_blend_factor(templ->rgb_src_factor); + blend->rt[i].dstblend = svga_translate_blend_factor(templ->rgb_dst_factor); + blend->rt[i].blendeq = svga_translate_blend_func(templ->rgb_func); + blend->rt[i].srcblend_alpha = svga_translate_blend_factor(templ->alpha_src_factor); + blend->rt[i].dstblend_alpha = svga_translate_blend_factor(templ->alpha_dst_factor); + blend->rt[i].blendeq_alpha = svga_translate_blend_func(templ->alpha_func); + + if (blend->rt[i].srcblend_alpha != blend->rt[i].srcblend || + blend->rt[i].dstblend_alpha != blend->rt[i].dstblend || + blend->rt[i].blendeq_alpha != blend->rt[i].blendeq) + { + blend->rt[i].separate_alpha_blend_enable = TRUE; + } + } + } + + blend->rt[i].writemask = templ->colormask; + } + + return blend; +} + +static void svga_bind_blend_state(struct pipe_context *pipe, + void *blend) +{ + struct svga_context *svga = svga_context(pipe); + + svga->curr.blend = (struct svga_blend_state*)blend; + svga->dirty |= SVGA_NEW_BLEND; +} + + +static void svga_delete_blend_state(struct pipe_context *pipe, void *blend) +{ + FREE(blend); +} + +static void svga_set_blend_color( struct pipe_context *pipe, + const struct pipe_blend_color *blend_color ) +{ + struct svga_context *svga = svga_context(pipe); + + svga->curr.blend_color = *blend_color; + + svga->dirty |= SVGA_NEW_BLEND; +} + + +void svga_init_blend_functions( struct svga_context *svga ) +{ + svga->pipe.create_blend_state = svga_create_blend_state; + svga->pipe.bind_blend_state = svga_bind_blend_state; + svga->pipe.delete_blend_state = svga_delete_blend_state; + + svga->pipe.set_blend_color = svga_set_blend_color; +} + + + |