/* * Copyright 2008 Corbin Simpson * Copyright 2009 Marek Olšák * * 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 * on 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 * THE AUTHOR(S) AND/OR THEIR 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. */ #include "draw/draw_context.h" #include "util/u_math.h" #include "util/u_memory.h" #include "util/u_pack_color.h" #include "tgsi/tgsi_parse.h" #include "pipe/p_config.h" #include "pipe/internal/p_winsys_screen.h" #include "r300_context.h" #include "r300_reg.h" #include "r300_screen.h" #include "r300_state_inlines.h" #include "r300_fs.h" #include "r300_vs.h" /* r300_state: Functions used to intialize state context by translating * Gallium state objects into semi-native r300 state objects. */ static boolean blend_discard_if_src_alpha_0(unsigned srcRGB, unsigned srcA, unsigned dstRGB, unsigned dstA) { /* If the blend equation is ADD or REVERSE_SUBTRACT, * SRC_ALPHA == 0, and the following state is set, the colorbuffer * will not be changed. * Notice that the dst factors are the src factors inverted. */ return (srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || srcRGB == PIPE_BLENDFACTOR_ZERO) && (srcA == PIPE_BLENDFACTOR_SRC_COLOR || srcA == PIPE_BLENDFACTOR_SRC_ALPHA || srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || srcA == PIPE_BLENDFACTOR_ZERO) && (dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || dstRGB == PIPE_BLENDFACTOR_ONE) && (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || dstA == PIPE_BLENDFACTOR_ONE); } static boolean blend_discard_if_src_alpha_1(unsigned srcRGB, unsigned srcA, unsigned dstRGB, unsigned dstA) { /* If the blend equation is ADD or REVERSE_SUBTRACT, * SRC_ALPHA == 1, and the following state is set, the colorbuffer * will not be changed. * Notice that the dst factors are the src factors inverted. */ return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || srcRGB == PIPE_BLENDFACTOR_ZERO) && (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || srcA == PIPE_BLENDFACTOR_ZERO) && (dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || dstRGB == PIPE_BLENDFACTOR_ONE) && (dstA == PIPE_BLENDFACTOR_SRC_COLOR || dstA == PIPE_BLENDFACTOR_SRC_ALPHA || dstA == PIPE_BLENDFACTOR_ONE); } static boolean blend_discard_if_src_color_0(unsigned srcRGB, unsigned srcA, unsigned dstRGB, unsigned dstA) { /* If the blend equation is ADD or REVERSE_SUBTRACT, * SRC_COLOR == (0,0,0), and the following state is set, the colorbuffer * will not be changed. * Notice that the dst factors are the src factors inverted. */ return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || srcRGB == PIPE_BLENDFACTOR_ZERO) && (srcA == PIPE_BLENDFACTOR_ZERO) && (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || dstRGB == PIPE_BLENDFACTOR_ONE) && (dstA == PIPE_BLENDFACTOR_ONE); } static boolean blend_discard_if_src_color_1(unsigned srcRGB, unsigned srcA, unsigned dstRGB, unsigned dstA) { /* If the blend equation is ADD or REVERSE_SUBTRACT, * SRC_COLOR == (1,1,1), and the following state is set, the colorbuffer * will not be changed. * Notice that the dst factors are the src factors inverted. */ return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || srcRGB == PIPE_BLENDFACTOR_ZERO) && (srcA == PIPE_BLENDFACTOR_ZERO) && (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || dstRGB == PIPE_BLENDFACTOR_ONE) && (dstA == PIPE_BLENDFACTOR_ONE); } static boolean blend_discard_if_src_alpha_color_0(unsigned srcRGB, unsigned srcA, unsigned dstRGB, unsigned dstA) { /* If the blend equation is ADD or REVERSE_SUBTRACT, * SRC_ALPHA_COLOR == (0,0,0,0), and the following state is set, * the colorbuffer will not be changed. * Notice that the dst factors are the src factors inverted. */ return (srcRGB == PIPE_BLENDFACTOR_SRC_COLOR || srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA || srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || srcRGB == PIPE_BLENDFACTOR_ZERO) && (srcA == PIPE_BLENDFACTOR_SRC_COLOR || srcA == PIPE_BLENDFACTOR_SRC_ALPHA || srcA == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE || srcA == PIPE_BLENDFACTOR_ZERO) && (dstRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || dstRGB == PIPE_BLENDFACTOR_ONE) && (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || dstA == PIPE_BLENDFACTOR_ONE); } static boolean blend_discard_if_src_alpha_color_1(unsigned srcRGB, unsigned srcA, unsigned dstRGB, unsigned dstA) { /* If the blend equation is ADD or REVERSE_SUBTRACT, * SRC_ALPHA_COLOR == (1,1,1,1), and the following state is set, * the colorbuffer will not be changed. * Notice that the dst factors are the src factors inverted. */ return (srcRGB == PIPE_BLENDFACTOR_INV_SRC_COLOR || srcRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || srcRGB == PIPE_BLENDFACTOR_ZERO) && (srcA == PIPE_BLENDFACTOR_INV_SRC_COLOR || srcA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || srcA == PIPE_BLENDFACTOR_ZERO) && (dstRGB == PIPE_BLENDFACTOR_SRC_COLOR || dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || dstRGB == PIPE_BLENDFACTOR_ONE) && (dstA == PIPE_BLENDFACTOR_SRC_COLOR || dstA == PIPE_BLENDFACTOR_SRC_ALPHA || dstA == PIPE_BLENDFACTOR_ONE); } /* Create a new blend state based on the CSO blend state. * * This encompasses alpha blending, logic/raster ops, and blend dithering. */ static void* r300_create_blend_state(struct pipe_context* pipe, const struct pipe_blend_state* state) { struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state); if (state->blend_enable) { unsigned eqRGB = state->rgb_func; unsigned srcRGB = state->rgb_src_factor; unsigned dstRGB = state->rgb_dst_factor; unsigned eqA = state->alpha_func; unsigned srcA = state->alpha_src_factor; unsigned dstA = state->alpha_dst_factor; /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha, * this is just the crappy D3D naming */ blend->blend_control = R300_ALPHA_BLEND_ENABLE | r300_translate_blend_function(eqRGB) | ( r300_translate_blend_factor(srcRGB) << R300_SRC_BLEND_SHIFT) | ( r300_translate_blend_factor(dstRGB) << R300_DST_BLEND_SHIFT); /* Optimization: some operations do not require the destination color. * * When SRC_ALPHA_SATURATE is used, colorbuffer reads must be enabled, * otherwise blending gives incorrect results. It seems to be * a hardware bug. */ if (eqRGB == PIPE_BLEND_MIN || eqA == PIPE_BLEND_MIN || eqRGB == PIPE_BLEND_MAX || eqA == PIPE_BLEND_MAX || dstRGB != PIPE_BLENDFACTOR_ZERO || dstA != PIPE_BLENDFACTOR_ZERO || srcRGB == PIPE_BLENDFACTOR_DST_COLOR || srcRGB == PIPE_BLENDFACTOR_DST_ALPHA || srcRGB == PIPE_BLENDFACTOR_INV_DST_COLOR || srcRGB == PIPE_BLENDFACTOR_INV_DST_ALPHA || srcA == PIPE_BLENDFACTOR_DST_COLOR || srcA == PIPE_BLENDFACTOR_DST_ALPHA || srcA == PIPE_BLENDFACTOR_INV_DST_COLOR || srcA == PIPE_BLENDFACTOR_INV_DST_ALPHA || srcRGB == PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE) { /* Enable reading from the colorbuffer. */ blend->blend_control |= R300_READ_ENABLE; if (r300_screen(r300_context(pipe)->context.screen)->caps->is_r500) { /* Optimization: Depending on incoming pixels, we can * conditionally disable the reading in hardware... */ if (eqRGB != PIPE_BLEND_MIN && eqA != PIPE_BLEND_MIN && eqRGB != PIPE_BLEND_MAX && eqA != PIPE_BLEND_MAX) { /* Disable reading if SRC_ALPHA == 0. */ if ((dstRGB == PIPE_BLENDFACTOR_SRC_ALPHA || dstRGB == PIPE_BLENDFACTOR_ZERO) && (dstA == PIPE_BLENDFACTOR_SRC_COLOR || dstA == PIPE_BLENDFACTOR_SRC_ALPHA || dstA == PIPE_BLENDFACTOR_ZERO)) { blend->blend_control |= R500_SRC_ALPHA_0_NO_READ; } /* Disable reading if SRC_ALPHA == 1. */ if ((dstRGB == PIPE_BLENDFACTOR_INV_SRC_ALPHA || dstRGB == PIPE_BLENDFACTOR_ZERO) && (dstA == PIPE_BLENDFACTOR_INV_SRC_COLOR || dstA == PIPE_BLENDFACTOR_INV_SRC_ALPHA || dstA == PIPE_BLENDFACTOR_ZERO)) { blend->blend_control |= R500_SRC_ALPHA_1_NO_READ; } } } } /* Optimization: discard pixels which don't change the colorbuffer. * * The code below is non-trivial and some math is involved. * * Discarding pixels must be disabled when FP16 AA is enabled. * This is a hardware bug. Also, this implementation wouldn't work * with FP blending enabled and equation clamping disabled. * * Equations other than ADD are rarely used and therefore won't be * optimized. */ if ((eqRGB == PIPE_BLEND_ADD || eqRGB == PIPE_BLEND_REVERSE_SUBTRACT) && (eqA == PIPE_BLEND_ADD || eqA == PIPE_BLEND_REVERSE_SUBTRACT)) { /* ADD: X+Y * REVERSE_SUBTRACT: Y-X * * The idea is: * If X = src*srcFactor = 0 and Y = dst*dstFactor = 1, * then CB will not be changed. * * Given the srcFactor and dstFactor variables, we can derive * what src and dst should be equal to and discard appropriate * pixels. */ if (blend_discard_if_src_alpha_0(srcRGB, srcA, dstRGB, dstA)) { blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0; } else if (blend_discard_if_src_alpha_1(srcRGB, srcA, dstRGB, dstA)) { blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1; } else if (blend_discard_if_src_color_0(srcRGB, srcA, dstRGB, dstA)) { blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0; } else if (blend_discard_if_src_color_1(srcRGB, srcA, dstRGB, dstA)) { blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1; } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA, dstRGB, dstA)) { blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0; } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA, dstRGB, dstA)) { blend->blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1; } } /* separate alpha */ if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) { blend->blend_control |= R300_SEPARATE_ALPHA_ENABLE; blend->alpha_blend_control = r300_translate_blend_function(eqA) | (r300_translate_blend_factor(srcA) << R300_SRC_BLEND_SHIFT) | (r300_translate_blend_factor(dstA) << R300_DST_BLEND_SHIFT); } } /* PIPE_LOGICOP_* don't need to be translated, fortunately. */ if (state->logicop_enable) { blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE | (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT; } /* Color Channel Mask */ if (state->colormask & PIPE_MASK_R) { blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_RED_MASK0; } if (state->colormask & PIPE_MASK_G) { blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_GREEN_MASK0; } if (state->colormask & PIPE_MASK_B) { blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_BLUE_MASK0; } if (state->colormask & PIPE_MASK_A) { blend->color_channel_mask |= RB3D_COLOR_CHANNEL_MASK_ALPHA_MASK0; } if (state->dither) { blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT | R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT; } return (void*)blend; } /* Bind blend state. */ static void r300_bind_blend_state(struct pipe_context* pipe, void* state) { struct r300_context* r300 = r300_context(pipe); r300->blend_state = (struct r300_blend_state*)state; r300->dirty_state |= R300_NEW_BLEND; } /* Free blend state. */ static void r300_delete_blend_state(struct pipe_context* pipe, void* state) { FREE(state); } /* Convert float to 10bit integer */ static unsigned float_to_fixed10(float f) { return CLAMP((unsigned)(f * 1023.9f), 0, 1023); } /* Set blend color. * Setup both R300 and R500 registers, figure out later which one to write. */ static void r300_set_blend_color(struct pipe_context* pipe, const struct pipe_blend_color* color) { struct r300_context* r300 = r300_context(pipe); union util_color uc; util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM, &uc); r300->blend_color_state->blend_color = uc.ui; /* XXX if FP16 blending is enabled, we should use the FP16 format */ r300->blend_color_state->blend_color_red_alpha = float_to_fixed10(color->color[0]) | (float_to_fixed10(color->color[3]) << 16); r300->blend_color_state->blend_color_green_blue = float_to_fixed10(color->color[2]) | (float_to_fixed10(color->color[1]) << 16); r300->dirty_state |= R300_NEW_BLEND_COLOR; } static void r300_set_clip_state(struct pipe_context* pipe, const struct pipe_clip_state* state) { struct r300_context* r300 = r300_context(pipe); if (r300_screen(pipe->screen)->caps->has_tcl) { r300->clip_state = *state; r300->dirty_state |= R300_NEW_CLIP; } else { draw_flush(r300->draw); draw_set_clip_state(r300->draw, state); } } /* Create a new depth, stencil, and alpha state based on the CSO dsa state. * * This contains the depth buffer, stencil buffer, alpha test, and such. * On the Radeon, depth and stencil buffer setup are intertwined, which is * the reason for some of the strange-looking assignments across registers. */ static void* r300_create_dsa_state(struct pipe_context* pipe, const struct pipe_depth_stencil_alpha_state* state) { struct r300_capabilities *caps = r300_screen(r300_context(pipe)->context.screen)->caps; struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); /* Depth test setup. */ if (state->depth.enabled) { dsa->z_buffer_control |= R300_Z_ENABLE; if (state->depth.writemask) { dsa->z_buffer_control |= R300_Z_WRITE_ENABLE; } dsa->z_stencil_control |= (r300_translate_depth_stencil_function(state->depth.func) << R300_Z_FUNC_SHIFT); } /* Stencil buffer setup. */ if (state->stencil[0].enabled) { dsa->z_buffer_control |= R300_STENCIL_ENABLE; dsa->z_stencil_control |= (r300_translate_depth_stencil_function(state->stencil[0].func) << R300_S_FRONT_FUNC_SHIFT) | (r300_translate_stencil_op(state->stencil[0].fail_op) << R300_S_FRONT_SFAIL_OP_SHIFT) | (r300_translate_stencil_op(state->stencil[0].zpass_op) << R300_S_FRONT_ZPASS_OP_SHIFT) | (r300_translate_stencil_op(state->stencil[0].zfail_op) << R300_S_FRONT_ZFAIL_OP_SHIFT); dsa->stencil_ref_mask = (state->stencil[0].ref_value) | (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) | (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT); if (state->stencil[1].enabled) { dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK; dsa->z_stencil_control |= (r300_translate_depth_stencil_function(state->stencil[1].func) << R300_S_BACK_FUNC_SHIFT) | (r300_translate_stencil_op(state->stencil[1].fail_op) << R300_S_BACK_SFAIL_OP_SHIFT) | (r300_translate_stencil_op(state->stencil[1].zpass_op) << R300_S_BACK_ZPASS_OP_SHIFT) | (r300_translate_stencil_op(state->stencil[1].zfail_op) << R300_S_BACK_ZFAIL_OP_SHIFT); /* XXX it seems r3xx doesn't support STENCILREFMASK_BF */ if (caps->is_r500) { dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK; dsa->stencil_ref_bf = (state->stencil[1].ref_value) | (state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) | (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT); } } } /* Alpha test setup. */ if (state->alpha.enabled) { dsa->alpha_function = r300_translate_alpha_function(state->alpha.func) | R300_FG_ALPHA_FUNC_ENABLE; /* XXX figure out why emitting 10bit alpha ref causes CS to dump */ /* always use 8bit alpha ref */ dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value); if (caps->is_r500) dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT; } return (void*)dsa; } /* Bind DSA state. */ static void r300_bind_dsa_state(struct pipe_context* pipe, void* state) { struct r300_context* r300 = r300_context(pipe); r300->dsa_state = (struct r300_dsa_state*)state; r300->dirty_state |= R300_NEW_DSA; } /* Free DSA state. */ static void r300_delete_dsa_state(struct pipe_context* pipe, void* state) { FREE(state); } static void r300_set_scissor_regs(const struct pipe_scissor_state* state, struct r300_scissor_regs *scissor, boolean is_r500) { if (is_r500) { scissor->top_left = (state->minx << R300_SCISSORS_X_SHIFT) | (state->miny << R300_SCISSORS_Y_SHIFT); scissor->bottom_right = ((state->maxx - 1) << R300_SCISSORS_X_SHIFT) | ((state->maxy - 1) << R300_SCISSORS_Y_SHIFT); } else { /* Offset of 1440 in non-R500 chipsets. */ scissor->top_left = ((state->minx + 1440) << R300_SCISSORS_X_SHIFT) | ((state->miny + 1440) << R300_SCISSORS_Y_SHIFT); scissor->bottom_right = (((state->maxx - 1) + 1440) << R300_SCISSORS_X_SHIFT) | (((state->maxy - 1) + 1440) << R300_SCISSORS_Y_SHIFT); } scissor->empty_area = state->minx >= state->maxx || state->miny >= state->maxy; } static void r300_set_framebuffer_state(struct pipe_context* pipe, const struct pipe_framebuffer_state* state) { struct r300_context* r300 = r300_context(pipe); struct pipe_scissor_state scissor; if (r300->draw) { draw_flush(r300->draw); } r300->framebuffer_state = *state; scissor.minx = scissor.miny = 0; scissor.maxx = state->width; scissor.maxy = state->height; r300_set_scissor_regs(&scissor, &r300->scissor_state->framebuffer, r300_screen(r300->context.screen)->caps->is_r500); /* Don't rely on the order of states being set for the first time. */ if (!r300->rs_state || !r300->rs_state->rs.scissor) { r300->dirty_state |= R300_NEW_SCISSOR; } r300->dirty_state |= R300_NEW_FRAMEBUFFERS; r300->dirty_state |= R300_NEW_BLEND; } /* Create fragment shader state. */ static void* r300_create_fs_state(struct pipe_context* pipe, const struct pipe_shader_state* shader) { struct r300_fragment_shader* fs = NULL; fs = (struct r300_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader); /* Copy state directly into shader. */ fs->state = *shader; fs->state.tokens = tgsi_dup_tokens(shader->tokens); tgsi_scan_shader(shader->tokens, &fs->info); r300_shader_read_fs_inputs(&fs->info, &fs->inputs); return (void*)fs; } /* Bind fragment shader state. */ static void r300_bind_fs_state(struct pipe_context* pipe, void* shader) { struct r300_context* r300 = r300_context(pipe); struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; if (fs == NULL) { r300->fs = NULL; return; } r300->fs = fs; r300_pick_fragment_shader(r300); r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | R300_NEW_FRAGMENT_SHADER_CONSTANTS; } /* Delete fragment shader state. */ static void r300_delete_fs_state(struct pipe_context* pipe, void* shader) { struct r300_fragment_shader* fs = (struct r300_fragment_shader*)shader; struct r300_fragment_shader_code *tmp, *ptr = fs->first; while (ptr) { tmp = ptr; ptr = ptr->next; rc_constants_destroy(&tmp->code.constants); FREE(tmp); } FREE((void*)fs->state.tokens); FREE(shader); } static void r300_set_polygon_stipple(struct pipe_context* pipe, const struct pipe_poly_stipple* state) { /* XXX no idea how to set this up, but not terribly important */ } /* Create a new rasterizer state based on the CSO rasterizer state. * * This is a very large chunk of state, and covers most of the graphics * backend (GB), geometry assembly (GA), and setup unit (SU) blocks. * * In a not entirely unironic sidenote, this state has nearly nothing to do * with the actual block on the Radeon called the rasterizer (RS). */ static void* r300_create_rs_state(struct pipe_context* pipe, const struct pipe_rasterizer_state* state) { struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state); /* Copy rasterizer state for Draw. */ rs->rs = *state; rs->enable_vte = !state->bypass_vs_clip_and_viewport; #ifdef PIPE_ARCH_LITTLE_ENDIAN rs->vap_control_status = R300_VC_NO_SWAP; #else rs->vap_control_status = R300_VC_32BIT_SWAP; #endif /* If bypassing TCL, or if no TCL engine is present, turn off the HW TCL. * Else, enable HW TCL and force Draw's TCL off. */ if (state->bypass_vs_clip_and_viewport || !r300_screen(pipe->screen)->caps->has_tcl) { rs->vap_control_status |= R300_VAP_TCL_BYPASS; } rs->point_size = pack_float_16_6x(state->point_size) | (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT); rs->point_minmax = ((int)(state->point_size_min * 6.0) << R300_GA_POINT_MINMAX_MIN_SHIFT) | ((int)(state->point_size_max * 6.0) << R300_GA_POINT_MINMAX_MAX_SHIFT); rs->line_control = pack_float_16_6x(state->line_width) | R300_GA_LINE_CNTL_END_TYPE_COMP; /* XXX I think there is something wrong with the polygon mode, * XXX re-test when r300g is in a better shape */ /* Enable polygon mode */ if (state->fill_cw != PIPE_POLYGON_MODE_FILL || state->fill_ccw != PIPE_POLYGON_MODE_FILL) { rs->polygon_mode = R300_GA_POLY_MODE_DUAL; } /* Radeons don't think in "CW/CCW", they think in "front/back". */ if (state->front_winding == PIPE_WINDING_CW) { rs->cull_mode = R300_FRONT_FACE_CW; /* Polygon offset */ if (state->offset_cw) { rs->polygon_offset_enable |= R300_FRONT_ENABLE; } if (state->offset_ccw) { rs->polygon_offset_enable |= R300_BACK_ENABLE; } /* Polygon mode */ if (rs->polygon_mode) { rs->polygon_mode |= r300_translate_polygon_mode_front(state->fill_cw); rs->polygon_mode |= r300_translate_polygon_mode_back(state->fill_ccw); } } else { rs->cull_mode = R300_FRONT_FACE_CCW; /* Polygon offset */ if (state->offset_ccw) { rs->polygon_offset_enable |= R300_FRONT_ENABLE; } if (state->offset_cw) { rs->polygon_offset_enable |= R300_BACK_ENABLE; } /* Polygon mode */ if (rs->polygon_mode) { rs->polygon_mode |= r300_translate_polygon_mode_front(state->fill_ccw); rs->polygon_mode |= r300_translate_polygon_mode_back(state->fill_cw); } } if (state->front_winding & state->cull_mode) { rs->cull_mode |= R300_CULL_FRONT; } if (~(state->front_winding) & state->cull_mode) { rs->cull_mode |= R300_CULL_BACK; } if (rs->polygon_offset_enable) { rs->depth_offset_front = rs->depth_offset_back = fui(state->offset_units); rs->depth_scale_front = rs->depth_scale_back = fui(state->offset_scale); } if (state->line_stipple_enable) { rs->line_stipple_config = R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE | (fui((float)state->line_stipple_factor) & R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK); /* XXX this might need to be scaled up */ rs->line_stipple_value = state->line_stipple_pattern; } if (state->flatshade) { rs->color_control = R300_SHADE_MODEL_FLAT; } else { rs->color_control = R300_SHADE_MODEL_SMOOTH; } return (void*)rs; } /* Bind rasterizer state. */ static void r300_bind_rs_state(struct pipe_context* pipe, void* state) { struct r300_context* r300 = r300_context(pipe); struct r300_rs_state* rs = (struct r300_rs_state*)state; if (r300->draw) { draw_flush(r300->draw); draw_set_rasterizer_state(r300->draw, &rs->rs); } r300->rs_state = rs; /* XXX Clean these up when we move to atom emits */ r300->dirty_state |= R300_NEW_RASTERIZER; r300->dirty_state |= R300_NEW_RS_BLOCK; r300->dirty_state |= R300_NEW_SCISSOR; r300->dirty_state |= R300_NEW_VIEWPORT; if (r300->fs && r300->fs->inputs.wpos != ATTR_UNUSED) { r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; } } /* Free rasterizer state. */ static void r300_delete_rs_state(struct pipe_context* pipe, void* state) { FREE(state); } static void* r300_create_sampler_state(struct pipe_context* pipe, const struct pipe_sampler_state* state) { struct r300_context* r300 = r300_context(pipe); struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state); int lod_bias; union util_color uc; sampler->state = *state; sampler->filter0 |= (r300_translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) | (r300_translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) | (r300_translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT); sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter, state->mag_img_filter, state->min_mip_filter, state->max_anisotropy > 1.0); /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */ /* We must pass these to the emit function to clamp them properly. */ sampler->min_lod = MAX2((unsigned)state->min_lod, 0); sampler->max_lod = MAX2((unsigned)ceilf(state->max_lod), 0); lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1); sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT; sampler->filter1 |= r300_anisotropy(state->max_anisotropy); util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM, &uc); sampler->border_color = uc.ui; /* R500-specific fixups and optimizations */ if (r300_screen(r300->context.screen)->caps->is_r500) { sampler->filter1 |= R500_BORDER_FIX; } return (void*)sampler; } static void r300_bind_sampler_states(struct pipe_context* pipe, unsigned count, void** states) { struct r300_context* r300 = r300_context(pipe); int i; if (count > 8) { return; } for (i = 0; i < count; i++) { if (r300->sampler_states[i] != states[i]) { r300->sampler_states[i] = (struct r300_sampler_state*)states[i]; r300->dirty_state |= (R300_NEW_SAMPLER << i); } } r300->sampler_count = count; /* Pick a fragment shader based on the texture compare state. */ if (r300->fs && (r300->dirty_state & R300_ANY_NEW_SAMPLERS)) { if (r300_pick_fragment_shader(r300)) { r300->dirty_state |= R300_NEW_FRAGMENT_SHADER | R300_NEW_FRAGMENT_SHADER_CONSTANTS; } } } static void r300_lacks_vertex_textures(struct pipe_context* pipe, unsigned count, void** states) { } static void r300_delete_sampler_state(struct pipe_context* pipe, void* state) { FREE(state); } static void r300_set_sampler_textures(struct pipe_context* pipe, unsigned count, struct pipe_texture** texture) { struct r300_context* r300 = r300_context(pipe); boolean is_r500 = r300_screen(r300->context.screen)->caps->is_r500; int i; /* XXX magic num */ if (count > 8) { return; } for (i = 0; i < count; i++) { if (r300->textures[i] != (struct r300_texture*)texture[i]) { pipe_texture_reference((struct pipe_texture**)&r300->textures[i], texture[i]); r300->dirty_state |= (R300_NEW_TEXTURE << i); /* R300-specific - set the texrect factor in a fragment shader */ if (!is_r500 && r300->textures[i]->is_npot) { /* XXX It would be nice to re-emit just 1 constant, * XXX not all of them */ r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; } } } for (i = count; i < 8; i++) { if (r300->textures[i]) { pipe_texture_reference((struct pipe_texture**)&r300->textures[i], NULL); r300->dirty_state |= (R300_NEW_TEXTURE << i); } } r300->texture_count = count; } static void r300_set_scissor_state(struct pipe_context* pipe, const struct pipe_scissor_state* state) { struct r300_context* r300 = r300_context(pipe); r300_set_scissor_regs(state, &r300->scissor_state->scissor, r300_screen(r300->context.screen)->caps->is_r500); /* Don't rely on the order of states being set for the first time. */ if (!r300->rs_state || r300->rs_state->rs.scissor) { r300->dirty_state |= R300_NEW_SCISSOR; } } static void r300_set_viewport_state(struct pipe_context* pipe, const struct pipe_viewport_state* state) { struct r300_context* r300 = r300_context(pipe); /* Do the transform in HW. */ r300->viewport_state->vte_control = R300_VTX_W0_FMT; if (state->scale[0] != 1.0f) { r300->viewport_state->xscale = state->scale[0]; r300->viewport_state->vte_control |= R300_VPORT_X_SCALE_ENA; } if (state->scale[1] != 1.0f) { r300->viewport_state->yscale = state->scale[1]; r300->viewport_state->vte_control |= R300_VPORT_Y_SCALE_ENA; } if (state->scale[2] != 1.0f) { r300->viewport_state->zscale = state->scale[2]; r300->viewport_state->vte_control |= R300_VPORT_Z_SCALE_ENA; } if (state->translate[0] != 0.0f) { r300->viewport_state->xoffset = state->translate[0]; r300->viewport_state->vte_control |= R300_VPORT_X_OFFSET_ENA; } if (state->translate[1] != 0.0f) { r300->viewport_state->yoffset = state->translate[1]; r300->viewport_state->vte_control |= R300_VPORT_Y_OFFSET_ENA; } if (state->translate[2] != 0.0f) { r300->viewport_state->zoffset = state->translate[2]; r300->viewport_state->vte_control |= R300_VPORT_Z_OFFSET_ENA; } r300->dirty_state |= R300_NEW_VIEWPORT; if (r300->fs && r300->fs->inputs.wpos != ATTR_UNUSED) { r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; } } static void r300_set_vertex_buffers(struct pipe_context* pipe, unsigned count, const struct pipe_vertex_buffer* buffers) { struct r300_context* r300 = r300_context(pipe); memcpy(r300->vertex_buffer, buffers, sizeof(struct pipe_vertex_buffer) * count); r300->vertex_buffer_count = count; if (r300->draw) { draw_flush(r300->draw); draw_set_vertex_buffers(r300->draw, count, buffers); } r300->dirty_state |= R300_NEW_VERTEX_FORMAT; } static void r300_set_vertex_elements(struct pipe_context* pipe, unsigned count, const struct pipe_vertex_element* elements) { struct r300_context* r300 = r300_context(pipe); memcpy(r300->vertex_element, elements, sizeof(struct pipe_vertex_element) * count); r300->vertex_element_count = count; if (r300->draw) { draw_flush(r300->draw); draw_set_vertex_elements(r300->draw, count, elements); } } static void* r300_create_vs_state(struct pipe_context* pipe, const struct pipe_shader_state* shader) { struct r300_context* r300 = r300_context(pipe); if (r300_screen(pipe->screen)->caps->has_tcl) { struct r300_vertex_shader* vs = CALLOC_STRUCT(r300_vertex_shader); /* Copy state directly into shader. */ vs->state = *shader; vs->state.tokens = tgsi_dup_tokens(shader->tokens); tgsi_scan_shader(shader->tokens, &vs->info); return (void*)vs; } else { return draw_create_vertex_shader(r300->draw, shader); } } static void r300_bind_vs_state(struct pipe_context* pipe, void* shader) { struct r300_context* r300 = r300_context(pipe); if (r300_screen(pipe->screen)->caps->has_tcl) { struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; if (vs == NULL) { r300->vs = NULL; return; } else if (!vs->translated) { r300_translate_vertex_shader(r300, vs); } r300->vs = vs; r300->dirty_state |= R300_NEW_VERTEX_SHADER | R300_NEW_VERTEX_SHADER_CONSTANTS; } else { draw_flush(r300->draw); draw_bind_vertex_shader(r300->draw, (struct draw_vertex_shader*)shader); } } static void r300_delete_vs_state(struct pipe_context* pipe, void* shader) { struct r300_context* r300 = r300_context(pipe); if (r300_screen(pipe->screen)->caps->has_tcl) { struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; rc_constants_destroy(&vs->code.constants); FREE((void*)vs->state.tokens); FREE(shader); } else { draw_delete_vertex_shader(r300->draw, (struct draw_vertex_shader*)shader); } } static void r300_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index, const struct pipe_constant_buffer *buf) { struct r300_context* r300 = r300_context(pipe); void *mapped; if (buf == NULL || buf->buffer->size == 0 || (mapped = pipe_buffer_map(pipe->screen, buf->buffer, PIPE_BUFFER_USAGE_CPU_READ)) == NULL) { r300->shader_constants[shader].count = 0; return; } assert((buf->buffer->size % 4 * sizeof(float)) == 0); memcpy(r300->shader_constants[shader].constants, mapped, buf->buffer->size); r300->shader_constants[shader].count = buf->buffer->size / (4 * sizeof(float)); pipe_buffer_unmap(pipe->screen, buf->buffer); if (shader == PIPE_SHADER_VERTEX) r300->dirty_state |= R300_NEW_VERTEX_SHADER_CONSTANTS; else if (shader == PIPE_SHADER_FRAGMENT) r300->dirty_state |= R300_NEW_FRAGMENT_SHADER_CONSTANTS; } void r300_init_state_functions(struct r300_context* r300) { r300->context.create_blend_state = r300_create_blend_state; r300->context.bind_blend_state = r300_bind_blend_state; r300->context.delete_blend_state = r300_delete_blend_state; r300->context.set_blend_color = r300_set_blend_color; r300->context.set_clip_state = r300_set_clip_state; r300->context.set_constant_buffer = r300_set_constant_buffer; r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state; r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state; r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state; r300->context.set_framebuffer_state = r300_set_framebuffer_state; r300->context.create_fs_state = r300_create_fs_state; r300->context.bind_fs_state = r300_bind_fs_state; r300->context.delete_fs_state = r300_delete_fs_state; r300->context.set_polygon_stipple = r300_set_polygon_stipple; r300->context.create_rasterizer_state = r300_create_rs_state; r300->context.bind_rasterizer_state = r300_bind_rs_state; r300->context.delete_rasterizer_state = r300_delete_rs_state; r300->context.create_sampler_state = r300_create_sampler_state; r300->context.bind_fragment_sampler_states = r300_bind_sampler_states; r300->context.bind_vertex_sampler_states = r300_lacks_vertex_textures; r300->context.delete_sampler_state = r300_delete_sampler_state; r300->context.set_fragment_sampler_textures = r300_set_sampler_textures; r300->context.set_scissor_state = r300_set_scissor_state; r300->context.set_viewport_state = r300_set_viewport_state; r300->context.set_vertex_buffers = r300_set_vertex_buffers; r300->context.set_vertex_elements = r300_set_vertex_elements; r300->context.create_vs_state = r300_create_vs_state; r300->context.bind_vs_state = r300_bind_vs_state; r300->context.delete_vs_state = r300_delete_vs_state; }