/* * Copyright 2008 Corbin Simpson * * 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 "util/u_debug.h" #include "util/u_math.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_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. */ /* 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) { /* XXX for now, always do separate alpha... * is it faster to do it with one reg? */ blend->blend_control = R300_ALPHA_BLEND_ENABLE | R300_SEPARATE_ALPHA_ENABLE | R300_READ_ENABLE | r300_translate_blend_function(state->rgb_func) | (r300_translate_blend_factor(state->rgb_src_factor) << R300_SRC_BLEND_SHIFT) | (r300_translate_blend_factor(state->rgb_dst_factor) << R300_DST_BLEND_SHIFT); blend->alpha_blend_control = r300_translate_blend_function(state->alpha_func) | (r300_translate_blend_factor(state->alpha_src_factor) << R300_SRC_BLEND_SHIFT) | (r300_translate_blend_factor(state->alpha_dst_factor) << 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; } 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); } /* 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); ubyte ur, ug, ub, ua; ur = float_to_ubyte(color->color[0]); ug = float_to_ubyte(color->color[1]); ub = float_to_ubyte(color->color[2]); ua = float_to_ubyte(color->color[3]); util_pack_color(color->color, PIPE_FORMAT_A8R8G8B8_UNORM, &r300->blend_color_state->blend_color); /* XXX this is wrong */ r300->blend_color_state->blend_color_red_alpha = ur | (ua << 16); r300->blend_color_state->blend_color_green_blue = ub | (ug << 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); } } static void r300_set_constant_buffer(struct pipe_context* pipe, uint shader, uint index, const struct pipe_constant_buffer* buffer) { struct r300_context* r300 = r300_context(pipe); /* This entire chunk of code seems ever-so-slightly baked. * It's as if I've got pipe_buffer* matryoshkas... */ if (buffer && buffer->buffer && buffer->buffer->size) { void* map = pipe->winsys->buffer_map(pipe->winsys, buffer->buffer, PIPE_BUFFER_USAGE_CPU_READ); memcpy(r300->shader_constants[shader].constants, map, buffer->buffer->size); pipe->winsys->buffer_unmap(pipe->winsys, buffer->buffer); r300->shader_constants[shader].count = buffer->buffer->size / (sizeof(float) * 4); } else { r300->shader_constants[shader].count = 0; } r300->dirty_state |= R300_NEW_CONSTANTS; } /* 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_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); 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; dsa->alpha_reference = CLAMP(state->alpha.ref_value * 1023.0f, 0, 1023); } else { /* XXX need to fix this to be dynamically set dsa->z_buffer_top = R300_ZTOP_ENABLE; */ } 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_edgeflags(struct pipe_context* pipe, const unsigned* bitfield) { /* XXX you know it's bad when i915 has this blank too */ /* XXX and even worse, I have no idea WTF the bitfield is */ } static void r300_set_framebuffer_state(struct pipe_context* pipe, const struct pipe_framebuffer_state* state) { struct r300_context* r300 = r300_context(pipe); draw_flush(r300->draw); r300->framebuffer_state = *state; r300->dirty_state |= R300_NEW_FRAMEBUFFERS; } /* 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); 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; } else if (!fs->translated) { r300_translate_fragment_shader(r300, fs); } r300->fs = fs; r300->dirty_state |= R300_NEW_FRAGMENT_SHADER; } /* 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; rc_constants_destroy(&fs->code.constants); FREE(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; } else { rs->rs.bypass_vs_clip_and_viewport = TRUE; } 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; /* 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; if (state->offset_cw) { rs->polygon_offset_enable |= R300_FRONT_ENABLE; } if (state->offset_ccw) { rs->polygon_offset_enable |= R300_BACK_ENABLE; } } else { rs->cull_mode = R300_FRONT_FACE_CCW; if (state->offset_ccw) { rs->polygon_offset_enable |= R300_FRONT_ENABLE; } if (state->offset_cw) { rs->polygon_offset_enable |= R300_BACK_ENABLE; } } 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; } if (!state->flatshade_first) { rs->color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; } 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; draw_flush(r300->draw); draw_set_rasterizer_state(r300->draw, &rs->rs); r300->rs_state = rs; 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; } /* 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; 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); 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, &sampler->border_color); /* 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; } 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); 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); } } 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); if (r300_screen(r300->context.screen)->caps->is_r500) { r300->scissor_state->scissor_top_left = (state->minx << R300_SCISSORS_X_SHIFT) | (state->miny << R300_SCISSORS_Y_SHIFT); r300->scissor_state->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. */ r300->scissor_state->scissor_top_left = ((state->minx + 1440) << R300_SCISSORS_X_SHIFT) | ((state->miny + 1440) << R300_SCISSORS_Y_SHIFT); r300->scissor_state->scissor_bottom_right = (((state->maxx - 1) + 1440) << R300_SCISSORS_X_SHIFT) | (((state->maxy - 1) + 1440) << R300_SCISSORS_Y_SHIFT); } 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) { assert(state->scale[0] != 0.0f); r300->viewport_state->xscale = state->scale[0]; r300->viewport_state->vte_control |= R300_VPORT_X_SCALE_ENA; } if (state->scale[1] != 1.0f) { assert(state->scale[1] != 0.0f); r300->viewport_state->yscale = state->scale[1]; r300->viewport_state->vte_control |= R300_VPORT_Y_SCALE_ENA; } if (state->scale[2] != 1.0f) { assert(state->scale[2] != 0.0f); 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; } 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_buffers, buffers, sizeof(struct pipe_vertex_buffer) * count); r300->vertex_buffer_count = count; draw_flush(r300->draw); draw_set_vertex_buffers(r300->draw, count, buffers); } 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); 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); /* Appease Draw. */ vs->draw = draw_create_vertex_shader(r300->draw, shader); 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); draw_flush(r300->draw); 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); } draw_bind_vertex_shader(r300->draw, vs->draw); r300->vs = vs; r300->dirty_state |= R300_NEW_VERTEX_SHADER; } else { 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); draw_delete_vertex_shader(r300->draw, vs->draw); FREE(vs->state.tokens); FREE(shader); } else { draw_delete_vertex_shader(r300->draw, (struct draw_vertex_shader*)shader); } } 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_edgeflags = r300_set_edgeflags; 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_sampler_states = r300_bind_sampler_states; r300->context.delete_sampler_state = r300_delete_sampler_state; r300->context.set_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; }