/************************************************************************** * * Copyright 2007 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, sub license, 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 (including the * next paragraph) 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 NON-INFRINGEMENT. * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. * **************************************************************************/ /* Authors: Keith Whitwell */ #include "compiler/nir/nir_builder.h" #include "draw/draw_context.h" #include "nir/nir_to_tgsi.h" #include "tgsi/tgsi_parse.h" #include "util/u_helpers.h" #include "util/u_inlines.h" #include "util/u_math.h" #include "util/u_memory.h" #include "util/u_transfer.h" #include "nir.h" #include "i915_context.h" #include "i915_fpc.h" #include "i915_reg.h" #include "i915_resource.h" #include "i915_state.h" #include "i915_state_inlines.h" /* The i915 (and related graphics cores) do not support GL_CLAMP. The * Intel drivers for "other operating systems" implement GL_CLAMP as * GL_CLAMP_TO_EDGE, so the same is done here. */ static unsigned translate_wrap_mode(unsigned wrap) { switch (wrap) { case PIPE_TEX_WRAP_REPEAT: return TEXCOORDMODE_WRAP; case PIPE_TEX_WRAP_CLAMP: return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ case PIPE_TEX_WRAP_CLAMP_TO_EDGE: return TEXCOORDMODE_CLAMP_EDGE; case PIPE_TEX_WRAP_CLAMP_TO_BORDER: return TEXCOORDMODE_CLAMP_BORDER; case PIPE_TEX_WRAP_MIRROR_REPEAT: return TEXCOORDMODE_MIRROR; default: return TEXCOORDMODE_WRAP; } } static unsigned translate_img_filter(unsigned filter) { switch (filter) { case PIPE_TEX_FILTER_NEAREST: return FILTER_NEAREST; case PIPE_TEX_FILTER_LINEAR: return FILTER_LINEAR; default: assert(0); return FILTER_NEAREST; } } static unsigned translate_mip_filter(unsigned filter) { switch (filter) { case PIPE_TEX_MIPFILTER_NONE: return MIPFILTER_NONE; case PIPE_TEX_MIPFILTER_NEAREST: return MIPFILTER_NEAREST; case PIPE_TEX_MIPFILTER_LINEAR: return MIPFILTER_LINEAR; default: assert(0); return MIPFILTER_NONE; } } static uint32_t i915_remap_lis6_blend_dst_alpha(uint32_t lis6, uint32_t normal, uint32_t inv) { uint32_t src = (lis6 >> S6_CBUF_SRC_BLEND_FACT_SHIFT) & BLENDFACT_MASK; lis6 &= ~SRC_BLND_FACT(BLENDFACT_MASK); if (src == BLENDFACT_DST_ALPHA) src = normal; else if (src == BLENDFACT_INV_DST_ALPHA) src = inv; lis6 |= SRC_BLND_FACT(src); uint32_t dst = (lis6 >> S6_CBUF_DST_BLEND_FACT_SHIFT) & BLENDFACT_MASK; lis6 &= ~DST_BLND_FACT(BLENDFACT_MASK); if (dst == BLENDFACT_DST_ALPHA) dst = normal; else if (dst == BLENDFACT_INV_DST_ALPHA) dst = inv; lis6 |= DST_BLND_FACT(dst); return lis6; } static uint32_t i915_remap_iab_blend_dst_alpha(uint32_t iab, uint32_t normal, uint32_t inv) { uint32_t src = (iab >> IAB_SRC_FACTOR_SHIFT) & BLENDFACT_MASK; iab &= ~SRC_BLND_FACT(BLENDFACT_MASK); if (src == BLENDFACT_DST_ALPHA) src = normal; else if (src == BLENDFACT_INV_DST_ALPHA) src = inv; iab |= SRC_ABLND_FACT(src); uint32_t dst = (iab >> IAB_DST_FACTOR_SHIFT) & BLENDFACT_MASK; iab &= ~DST_BLND_FACT(BLENDFACT_MASK); if (dst == BLENDFACT_DST_ALPHA) dst = normal; else if (dst == BLENDFACT_INV_DST_ALPHA) dst = inv; iab |= DST_ABLND_FACT(dst); return iab; } /* None of this state is actually used for anything yet. */ static void * i915_create_blend_state(struct pipe_context *pipe, const struct pipe_blend_state *blend) { struct i915_blend_state *cso_data = CALLOC_STRUCT(i915_blend_state); { unsigned eqRGB = blend->rt[0].rgb_func; unsigned srcRGB = blend->rt[0].rgb_src_factor; unsigned dstRGB = blend->rt[0].rgb_dst_factor; unsigned eqA = blend->rt[0].alpha_func; unsigned srcA = blend->rt[0].alpha_src_factor; unsigned dstA = blend->rt[0].alpha_dst_factor; /* Special handling for MIN/MAX filter modes handled at * frontend level. */ if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) { cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | IAB_MODIFY_ENABLE | IAB_ENABLE | IAB_MODIFY_FUNC | IAB_MODIFY_SRC_FACTOR | IAB_MODIFY_DST_FACTOR | SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | (i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); } else { cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | IAB_MODIFY_ENABLE | 0); } } cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | ENABLE_LOGIC_OP_FUNC | LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); if (blend->logicop_enable) cso_data->LIS5 |= S5_LOGICOP_ENABLE; if (blend->dither) cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; /* We potentially do some fixup at emission for non-BGRA targets */ if ((blend->rt[0].colormask & PIPE_MASK_R) == 0) cso_data->LIS5 |= S5_WRITEDISABLE_RED; if ((blend->rt[0].colormask & PIPE_MASK_G) == 0) cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; if ((blend->rt[0].colormask & PIPE_MASK_B) == 0) cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; if ((blend->rt[0].colormask & PIPE_MASK_A) == 0) cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; if (blend->rt[0].blend_enable) { unsigned funcRGB = blend->rt[0].rgb_func; unsigned srcRGB = blend->rt[0].rgb_src_factor; unsigned dstRGB = blend->rt[0].rgb_dst_factor; cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); } cso_data->LIS6_alpha_in_g = i915_remap_lis6_blend_dst_alpha( cso_data->LIS6, BLENDFACT_DST_COLR, BLENDFACT_INV_DST_COLR); cso_data->LIS6_alpha_is_x = i915_remap_lis6_blend_dst_alpha( cso_data->LIS6, BLENDFACT_ONE, BLENDFACT_ZERO); cso_data->iab_alpha_in_g = i915_remap_iab_blend_dst_alpha( cso_data->iab, BLENDFACT_DST_COLR, BLENDFACT_INV_DST_COLR); cso_data->iab_alpha_is_x = i915_remap_iab_blend_dst_alpha( cso_data->iab, BLENDFACT_ONE, BLENDFACT_ZERO); return cso_data; } static void i915_bind_blend_state(struct pipe_context *pipe, void *blend) { struct i915_context *i915 = i915_context(pipe); if (i915->blend == blend) return; i915->blend = (struct i915_blend_state *)blend; i915->dirty |= I915_NEW_BLEND; } static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) { FREE(blend); } static void i915_set_blend_color(struct pipe_context *pipe, const struct pipe_blend_color *blend_color) { struct i915_context *i915 = i915_context(pipe); if (!blend_color) return; i915->blend_color = *blend_color; i915->dirty |= I915_NEW_BLEND; } static void i915_set_stencil_ref(struct pipe_context *pipe, const struct pipe_stencil_ref stencil_ref) { struct i915_context *i915 = i915_context(pipe); i915->stencil_ref = stencil_ref; i915->dirty |= I915_NEW_DEPTH_STENCIL; } static void * i915_create_sampler_state(struct pipe_context *pipe, const struct pipe_sampler_state *sampler) { struct i915_sampler_state *cso = CALLOC_STRUCT(i915_sampler_state); const unsigned ws = sampler->wrap_s; const unsigned wt = sampler->wrap_t; const unsigned wr = sampler->wrap_r; unsigned minFilt, magFilt; unsigned mipFilt; cso->templ = *sampler; mipFilt = translate_mip_filter(sampler->min_mip_filter); minFilt = translate_img_filter(sampler->min_img_filter); magFilt = translate_img_filter(sampler->mag_img_filter); if (sampler->max_anisotropy > 1) minFilt = magFilt = FILTER_ANISOTROPIC; if (sampler->max_anisotropy > 2) { cso->state[0] |= SS2_MAX_ANISO_4; } { int b = (int)(sampler->lod_bias * 16.0); b = CLAMP(b, -256, 255); cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); } /* Shadow: */ if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) { cso->state[0] |= (SS2_SHADOW_ENABLE | i915_translate_shadow_compare_func( sampler->compare_func)); minFilt = FILTER_4X4_FLAT; magFilt = FILTER_4X4_FLAT; } cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | (mipFilt << SS2_MIP_FILTER_SHIFT) | (magFilt << SS2_MAG_FILTER_SHIFT)); cso->state[1] |= ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); if (sampler->normalized_coords) cso->state[1] |= SS3_NORMALIZED_COORDS; { int minlod = (int)(16.0 * sampler->min_lod); int maxlod = (int)(16.0 * sampler->max_lod); minlod = CLAMP(minlod, 0, 16 * 11); maxlod = CLAMP(maxlod, 0, 16 * 11); if (minlod > maxlod) maxlod = minlod; cso->minlod = minlod; cso->maxlod = maxlod; } { ubyte r = float_to_ubyte(sampler->border_color.f[0]); ubyte g = float_to_ubyte(sampler->border_color.f[1]); ubyte b = float_to_ubyte(sampler->border_color.f[2]); ubyte a = float_to_ubyte(sampler->border_color.f[3]); cso->state[2] = I915PACKCOLOR8888(r, g, b, a); } return cso; } static void i915_bind_sampler_states(struct pipe_context *pipe, enum pipe_shader_type shader, unsigned start, unsigned num, void **samplers) { if (shader != PIPE_SHADER_FRAGMENT) { assert(num == 0); return; } struct i915_context *i915 = i915_context(pipe); unsigned i; /* Check for no-op */ if (num == i915->num_samplers && !memcmp(i915->fragment_sampler + start, samplers, num * sizeof(void *))) return; for (i = 0; i < num; ++i) i915->fragment_sampler[i + start] = samplers[i]; /* find highest non-null samplers[] entry */ { unsigned j = MAX2(i915->num_samplers, start + num); while (j > 0 && i915->fragment_sampler[j - 1] == NULL) j--; i915->num_samplers = j; } i915->dirty |= I915_NEW_SAMPLER; } static void i915_delete_sampler_state(struct pipe_context *pipe, void *sampler) { FREE(sampler); } /** XXX move someday? Or consolidate all these simple state setters * into one file. */ static uint32_t i915_get_modes4_stencil(const struct pipe_stencil_state *stencil) { int testmask = stencil->valuemask & 0xff; int writemask = stencil->writemask & 0xff; return (_3DSTATE_MODES_4_CMD | ENABLE_STENCIL_TEST_MASK | STENCIL_TEST_MASK(testmask) | ENABLE_STENCIL_WRITE_MASK | STENCIL_WRITE_MASK(writemask)); } static uint32_t i915_get_lis5_stencil(const struct pipe_stencil_state *stencil) { int test = i915_translate_compare_func(stencil->func); int fop = i915_translate_stencil_op(stencil->fail_op); int dfop = i915_translate_stencil_op(stencil->zfail_op); int dpop = i915_translate_stencil_op(stencil->zpass_op); return (S5_STENCIL_TEST_ENABLE | S5_STENCIL_WRITE_ENABLE | (test << S5_STENCIL_TEST_FUNC_SHIFT) | (fop << S5_STENCIL_FAIL_SHIFT) | (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); } static uint32_t i915_get_bfo(const struct pipe_stencil_state *stencil) { int test = i915_translate_compare_func(stencil->func); int fop = i915_translate_stencil_op(stencil->fail_op); int dfop = i915_translate_stencil_op(stencil->zfail_op); int dpop = i915_translate_stencil_op(stencil->zpass_op); return (_3DSTATE_BACKFACE_STENCIL_OPS | BFO_ENABLE_STENCIL_FUNCS | BFO_ENABLE_STENCIL_TWO_SIDE | BFO_ENABLE_STENCIL_REF | BFO_STENCIL_TWO_SIDE | (test << BFO_STENCIL_TEST_SHIFT) | (fop << BFO_STENCIL_FAIL_SHIFT) | (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); } static uint32_t i915_get_bfm(const struct pipe_stencil_state *stencil) { return (_3DSTATE_BACKFACE_STENCIL_MASKS | BFM_ENABLE_STENCIL_TEST_MASK | BFM_ENABLE_STENCIL_WRITE_MASK | ((stencil->valuemask & 0xff) << BFM_STENCIL_TEST_MASK_SHIFT) | ((stencil->writemask & 0xff) << BFM_STENCIL_WRITE_MASK_SHIFT)); } static void * i915_create_depth_stencil_state( struct pipe_context *pipe, const struct pipe_depth_stencil_alpha_state *depth_stencil) { struct i915_depth_stencil_state *cso = CALLOC_STRUCT(i915_depth_stencil_state); cso->stencil_modes4_cw = i915_get_modes4_stencil(&depth_stencil->stencil[0]); cso->stencil_modes4_ccw = i915_get_modes4_stencil(&depth_stencil->stencil[1]); if (depth_stencil->stencil[0].enabled) { cso->stencil_LIS5_cw = i915_get_lis5_stencil(&depth_stencil->stencil[0]); } if (depth_stencil->stencil[1].enabled) { cso->bfo_cw[0] = i915_get_bfo(&depth_stencil->stencil[1]); cso->bfo_cw[1] = i915_get_bfm(&depth_stencil->stencil[1]); /* Precompute the backface stencil settings if front winding order is * reversed -- HW doesn't have a bit to flip it for us. */ cso->stencil_LIS5_ccw = i915_get_lis5_stencil(&depth_stencil->stencil[1]); cso->bfo_ccw[0] = i915_get_bfo(&depth_stencil->stencil[0]); cso->bfo_ccw[1] = i915_get_bfm(&depth_stencil->stencil[0]); } else { /* This actually disables two-side stencil: The bit set is a * modify-enable bit to indicate we are changing the two-side * setting. Then there is a symbolic zero to show that we are * setting the flag to zero/off. */ cso->bfo_cw[0] = cso->bfo_ccw[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | BFO_ENABLE_STENCIL_TWO_SIDE | 0); cso->bfo_cw[1] = cso->bfo_ccw[1] = 0; cso->stencil_LIS5_ccw = cso->stencil_LIS5_cw; } if (depth_stencil->depth_enabled) { int func = i915_translate_compare_func(depth_stencil->depth_func); cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | (func << S6_DEPTH_TEST_FUNC_SHIFT)); if (depth_stencil->depth_writemask) cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; } if (depth_stencil->alpha_enabled) { int test = i915_translate_compare_func(depth_stencil->alpha_func); ubyte refByte = float_to_ubyte(depth_stencil->alpha_ref_value); cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | (test << S6_ALPHA_TEST_FUNC_SHIFT) | (((unsigned)refByte) << S6_ALPHA_REF_SHIFT)); } return cso; } static void i915_bind_depth_stencil_state(struct pipe_context *pipe, void *depth_stencil) { struct i915_context *i915 = i915_context(pipe); if (i915->depth_stencil == depth_stencil) return; i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; i915->dirty |= I915_NEW_DEPTH_STENCIL; } static void i915_delete_depth_stencil_state(struct pipe_context *pipe, void *depth_stencil) { FREE(depth_stencil); } static void i915_set_scissor_states(struct pipe_context *pipe, unsigned start_slot, unsigned num_scissors, const struct pipe_scissor_state *scissor) { struct i915_context *i915 = i915_context(pipe); memcpy(&i915->scissor, scissor, sizeof(*scissor)); i915->dirty |= I915_NEW_SCISSOR; } static void i915_set_polygon_stipple(struct pipe_context *pipe, const struct pipe_poly_stipple *stipple) { } static void * i915_create_fs_state(struct pipe_context *pipe, const struct pipe_shader_state *templ) { struct i915_context *i915 = i915_context(pipe); struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); if (!ifs) return NULL; ifs->draw_data = draw_create_fragment_shader(i915->draw, templ); if (templ->type == PIPE_SHADER_IR_NIR) { nir_shader *s = templ->ir.nir; NIR_PASS_V(s, i915_nir_lower_sincos); ifs->state.tokens = nir_to_tgsi(s, pipe->screen); } else { assert(templ->type == PIPE_SHADER_IR_TGSI); /* we need to keep a local copy of the tokens */ ifs->state.tokens = tgsi_dup_tokens(templ->tokens); } ifs->state.type = PIPE_SHADER_IR_TGSI; tgsi_scan_shader(ifs->state.tokens, &ifs->info); /* The shader's compiled to i915 instructions here */ i915_translate_fragment_program(i915, ifs); return ifs; } static void i915_bind_fs_state(struct pipe_context *pipe, void *shader) { struct i915_context *i915 = i915_context(pipe); if (i915->fs == shader) return; i915->fs = (struct i915_fragment_shader *)shader; draw_bind_fragment_shader(i915->draw, (i915->fs ? i915->fs->draw_data : NULL)); /* Tell draw if we need to do point sprites so we can get PNTC. */ if (i915->fs) draw_wide_point_sprites(i915->draw, i915->fs->reads_pntc); i915->dirty |= I915_NEW_FS; } static void i915_delete_fs_state(struct pipe_context *pipe, void *shader) { struct i915_fragment_shader *ifs = (struct i915_fragment_shader *)shader; FREE(ifs->program); ifs->program = NULL; FREE((struct tgsi_token *)ifs->state.tokens); ifs->state.tokens = NULL; ifs->program_len = 0; FREE(ifs); } static void * i915_create_vs_state(struct pipe_context *pipe, const struct pipe_shader_state *templ) { struct i915_context *i915 = i915_context(pipe); struct pipe_shader_state from_nir = { PIPE_SHADER_IR_TGSI }; if (templ->type == PIPE_SHADER_IR_NIR) { nir_shader *s = templ->ir.nir; NIR_PASS_V(s, nir_lower_point_size, 1.0, 255.0); /* The gallivm draw path doesn't support non-native-integers NIR shaders, * st/mesa does native-integers for the screen as a whole rather than * per-stage, and i915 FS can't do native integers. So, convert to TGSI, * where the draw path *does* support non-native-integers. */ from_nir.tokens = nir_to_tgsi(s, pipe->screen); templ = &from_nir; } return draw_create_vertex_shader(i915->draw, templ); } static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) { struct i915_context *i915 = i915_context(pipe); if (i915->vs == shader) return; i915->vs = shader; /* just pass-through to draw module */ draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *)shader); i915->dirty |= I915_NEW_VS; } static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) { struct i915_context *i915 = i915_context(pipe); /* just pass-through to draw module */ draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *)shader); } static void i915_set_constant_buffer(struct pipe_context *pipe, enum pipe_shader_type shader, uint32_t index, bool take_ownership, const struct pipe_constant_buffer *cb) { struct i915_context *i915 = i915_context(pipe); struct pipe_resource *buf = cb ? cb->buffer : NULL; unsigned new_num = 0; bool diff = true; /* XXX don't support geom shaders now */ if (shader == PIPE_SHADER_GEOMETRY) return; if (cb && cb->user_buffer) { buf = i915_user_buffer_create(pipe->screen, (void *)cb->user_buffer, cb->buffer_size, PIPE_BIND_CONSTANT_BUFFER); } /* if we have a new buffer compare it with the old one */ if (buf) { struct i915_buffer *ibuf = i915_buffer(buf); struct pipe_resource *old_buf = i915->constants[shader]; struct i915_buffer *old = old_buf ? i915_buffer(old_buf) : NULL; unsigned old_num = i915->current.num_user_constants[shader]; new_num = ibuf->b.width0 / 4 * sizeof(float); if (old_num == new_num) { if (old_num == 0) diff = false; #if 0 /* XXX no point in running this code since st/mesa only uses user buffers */ /* Can't compare the buffer data since they are userbuffers */ else if (old && old->free_on_destroy) diff = memcmp(old->data, ibuf->data, ibuf->b.width0); #else (void)old; #endif } } else { diff = i915->current.num_user_constants[shader] != 0; } if (take_ownership) { pipe_resource_reference(&i915->constants[shader], NULL); i915->constants[shader] = buf; } else { pipe_resource_reference(&i915->constants[shader], buf); } i915->current.num_user_constants[shader] = new_num; if (diff) i915->dirty |= shader == PIPE_SHADER_VERTEX ? I915_NEW_VS_CONSTANTS : I915_NEW_FS_CONSTANTS; if (cb && cb->user_buffer) { pipe_resource_reference(&buf, NULL); } } static void i915_set_sampler_views(struct pipe_context *pipe, enum pipe_shader_type shader, unsigned start, unsigned num, unsigned unbind_num_trailing_slots, bool take_ownership, struct pipe_sampler_view **views) { if (shader != PIPE_SHADER_FRAGMENT) { /* No support for VS samplers, because it would mean accessing the * write-combined maps of the textures, which is very slow. VS samplers * are not a required feature of GL2.1 or GLES2. */ assert(num == 0); return; } struct i915_context *i915 = i915_context(pipe); uint32_t i; assert(num <= PIPE_MAX_SAMPLERS); /* Check for no-op */ if (views && num == i915->num_fragment_sampler_views && !memcmp(i915->fragment_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) { if (take_ownership) { for (unsigned i = 0; i < num; i++) { struct pipe_sampler_view *view = views[i]; pipe_sampler_view_reference(&view, NULL); } } return; } for (i = 0; i < num; i++) { if (take_ownership) { pipe_sampler_view_reference(&i915->fragment_sampler_views[i], NULL); i915->fragment_sampler_views[i] = views[i]; } else { pipe_sampler_view_reference(&i915->fragment_sampler_views[i], views[i]); } } for (i = num; i < i915->num_fragment_sampler_views; i++) pipe_sampler_view_reference(&i915->fragment_sampler_views[i], NULL); i915->num_fragment_sampler_views = num; i915->dirty |= I915_NEW_SAMPLER_VIEW; } struct pipe_sampler_view * i915_create_sampler_view_custom(struct pipe_context *pipe, struct pipe_resource *texture, const struct pipe_sampler_view *templ, unsigned width0, unsigned height0) { struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); if (view) { *view = *templ; view->reference.count = 1; view->texture = NULL; pipe_resource_reference(&view->texture, texture); view->context = pipe; } return view; } static struct pipe_sampler_view * i915_create_sampler_view(struct pipe_context *pipe, struct pipe_resource *texture, const struct pipe_sampler_view *templ) { struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view); if (view) { *view = *templ; view->reference.count = 1; view->texture = NULL; pipe_resource_reference(&view->texture, texture); view->context = pipe; } return view; } static void i915_sampler_view_destroy(struct pipe_context *pipe, struct pipe_sampler_view *view) { pipe_resource_reference(&view->texture, NULL); FREE(view); } static void i915_set_framebuffer_state(struct pipe_context *pipe, const struct pipe_framebuffer_state *fb) { struct i915_context *i915 = i915_context(pipe); i915->framebuffer.width = fb->width; i915->framebuffer.height = fb->height; i915->framebuffer.nr_cbufs = fb->nr_cbufs; if (fb->nr_cbufs) { pipe_surface_reference(&i915->framebuffer.cbufs[0], fb->cbufs[0]); struct i915_surface *surf = i915_surface(i915->framebuffer.cbufs[0]); if (i915->current.fixup_swizzle != surf->oc_swizzle) { i915->current.fixup_swizzle = surf->oc_swizzle; memcpy(i915->current.color_swizzle, surf->color_swizzle, sizeof(surf->color_swizzle)); i915->dirty |= I915_NEW_COLOR_SWIZZLE; } } else { pipe_surface_reference(&i915->framebuffer.cbufs[0], NULL); } pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); if (fb->zsbuf) draw_set_zs_format(i915->draw, fb->zsbuf->format); i915->dirty |= I915_NEW_FRAMEBUFFER; } static void i915_set_clip_state(struct pipe_context *pipe, const struct pipe_clip_state *clip) { struct i915_context *i915 = i915_context(pipe); i915->clip = *clip; draw_set_clip_state(i915->draw, clip); i915->dirty |= I915_NEW_CLIP; } /* Called when gallium frontends notice changes to the viewport * matrix: */ static void i915_set_viewport_states(struct pipe_context *pipe, unsigned start_slot, unsigned num_viewports, const struct pipe_viewport_state *viewport) { struct i915_context *i915 = i915_context(pipe); i915->viewport = *viewport; /* struct copy */ /* pass the viewport info to the draw module */ draw_set_viewport_states(i915->draw, start_slot, num_viewports, &i915->viewport); i915->dirty |= I915_NEW_VIEWPORT; } static void * i915_create_rasterizer_state(struct pipe_context *pipe, const struct pipe_rasterizer_state *rasterizer) { struct i915_rasterizer_state *cso = CALLOC_STRUCT(i915_rasterizer_state); cso->templ = *rasterizer; cso->light_twoside = rasterizer->light_twoside; cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; cso->ds[1].f = rasterizer->offset_scale; if (rasterizer->poly_stipple_enable) { cso->st |= ST1_ENABLE; } if (rasterizer->scissor) cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; else cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; switch (rasterizer->cull_face) { case PIPE_FACE_NONE: cso->LIS4 |= S4_CULLMODE_NONE; break; case PIPE_FACE_FRONT: if (rasterizer->front_ccw) cso->LIS4 |= S4_CULLMODE_CCW; else cso->LIS4 |= S4_CULLMODE_CW; break; case PIPE_FACE_BACK: if (rasterizer->front_ccw) cso->LIS4 |= S4_CULLMODE_CW; else cso->LIS4 |= S4_CULLMODE_CCW; break; case PIPE_FACE_FRONT_AND_BACK: cso->LIS4 |= S4_CULLMODE_BOTH; break; } { int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; if (rasterizer->line_smooth) cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; } { int point_size = CLAMP((int)rasterizer->point_size, 1, 0xff); cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; } if (rasterizer->flatshade) { cso->LIS4 |= (S4_FLATSHADE_ALPHA | S4_FLATSHADE_COLOR | S4_FLATSHADE_SPECULAR); } if (!rasterizer->flatshade_first) cso->LIS6 |= (2 << S6_TRISTRIP_PV_SHIFT); cso->LIS7 = fui(rasterizer->offset_units); return cso; } static void i915_bind_rasterizer_state(struct pipe_context *pipe, void *raster) { struct i915_context *i915 = i915_context(pipe); if (i915->rasterizer == raster) return; i915->rasterizer = (struct i915_rasterizer_state *)raster; /* pass-through to draw module */ draw_set_rasterizer_state( i915->draw, (i915->rasterizer ? &(i915->rasterizer->templ) : NULL), raster); i915->dirty |= I915_NEW_RASTERIZER; } static void i915_delete_rasterizer_state(struct pipe_context *pipe, void *raster) { FREE(raster); } static void i915_set_vertex_buffers(struct pipe_context *pipe, unsigned start_slot, unsigned count, unsigned unbind_num_trailing_slots, bool take_ownership, const struct pipe_vertex_buffer *buffers) { struct i915_context *i915 = i915_context(pipe); struct draw_context *draw = i915->draw; util_set_vertex_buffers_count(i915->vertex_buffers, &i915->nr_vertex_buffers, buffers, start_slot, count, unbind_num_trailing_slots, take_ownership); /* pass-through to draw module */ draw_set_vertex_buffers(draw, start_slot, count, unbind_num_trailing_slots, buffers); } static void * i915_create_vertex_elements_state(struct pipe_context *pipe, unsigned count, const struct pipe_vertex_element *attribs) { struct i915_velems_state *velems; assert(count <= PIPE_MAX_ATTRIBS); velems = (struct i915_velems_state *)MALLOC(sizeof(struct i915_velems_state)); if (velems) { velems->count = count; memcpy(velems->velem, attribs, sizeof(*attribs) * count); } return velems; } static void i915_bind_vertex_elements_state(struct pipe_context *pipe, void *velems) { struct i915_context *i915 = i915_context(pipe); struct i915_velems_state *i915_velems = (struct i915_velems_state *)velems; if (i915->velems == velems) return; i915->velems = velems; /* pass-through to draw module */ if (i915_velems) { draw_set_vertex_elements(i915->draw, i915_velems->count, i915_velems->velem); } } static void i915_delete_vertex_elements_state(struct pipe_context *pipe, void *velems) { FREE(velems); } static void i915_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask) { } void i915_init_state_functions(struct i915_context *i915) { i915->base.create_blend_state = i915_create_blend_state; i915->base.bind_blend_state = i915_bind_blend_state; i915->base.delete_blend_state = i915_delete_blend_state; i915->base.create_sampler_state = i915_create_sampler_state; i915->base.bind_sampler_states = i915_bind_sampler_states; i915->base.delete_sampler_state = i915_delete_sampler_state; i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; i915->base.create_rasterizer_state = i915_create_rasterizer_state; i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; i915->base.create_fs_state = i915_create_fs_state; i915->base.bind_fs_state = i915_bind_fs_state; i915->base.delete_fs_state = i915_delete_fs_state; i915->base.create_vs_state = i915_create_vs_state; i915->base.bind_vs_state = i915_bind_vs_state; i915->base.delete_vs_state = i915_delete_vs_state; i915->base.create_vertex_elements_state = i915_create_vertex_elements_state; i915->base.bind_vertex_elements_state = i915_bind_vertex_elements_state; i915->base.delete_vertex_elements_state = i915_delete_vertex_elements_state; i915->base.set_blend_color = i915_set_blend_color; i915->base.set_stencil_ref = i915_set_stencil_ref; i915->base.set_clip_state = i915_set_clip_state; i915->base.set_sample_mask = i915_set_sample_mask; i915->base.set_constant_buffer = i915_set_constant_buffer; i915->base.set_framebuffer_state = i915_set_framebuffer_state; i915->base.set_polygon_stipple = i915_set_polygon_stipple; i915->base.set_scissor_states = i915_set_scissor_states; i915->base.set_sampler_views = i915_set_sampler_views; i915->base.create_sampler_view = i915_create_sampler_view; i915->base.sampler_view_destroy = i915_sampler_view_destroy; i915->base.set_viewport_states = i915_set_viewport_states; i915->base.set_vertex_buffers = i915_set_vertex_buffers; }