diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_state.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 616 |
1 files changed, 616 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c new file mode 100644 index 0000000000..6e64ad2dc3 --- /dev/null +++ b/src/gallium/drivers/r300/r300_state.c @@ -0,0 +1,616 @@ +/* + * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> + * + * 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_math.h" +#include "util/u_pack_color.h" + +#include "util/u_debug.h" +#include "pipe/internal/p_winsys_screen.h" + +#include "r300_context.h" +#include "r300_reg.h" +#include "r300_state_inlines.h" +#include "r300_state_shader.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. */ + /* XXX are logicops still allowed if blending's disabled? + * Does Gallium take care of it for us? */ + 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); + /* XXX Draw */ + 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].user_count = + buffer->buffer->size / (sizeof(float) * 4); + } else { + r300->shader_constants[shader].user_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 { + 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 */ +} + +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_context* r300 = r300_context(pipe); + struct r3xx_fragment_shader* fs = NULL; + + if (r300_screen(r300->context.screen)->caps->is_r500) { + fs = + (struct r3xx_fragment_shader*)CALLOC_STRUCT(r500_fragment_shader); + } else { + fs = + (struct r3xx_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader); + } + + /* Copy state directly into shader. */ + fs->state = *shader; + + 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 r3xx_fragment_shader* fs = (struct r3xx_fragment_shader*)shader; + + if (fs == NULL) { + r300->fs = NULL; + return; + } else if (!fs->translated) { + if (r300_screen(r300->context.screen)->caps->is_r500) { + r500_translate_fragment_shader(r300, (struct r500_fragment_shader*)fs); + } else { + r300_translate_fragment_shader(r300, (struct r300_fragment_shader*)fs); + } + } + + fs->translated = TRUE; + 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) +{ + FREE(shader); +} + +static void r300_set_polygon_stipple(struct pipe_context* pipe, + const struct pipe_poly_stipple* state) +{ + /* XXX */ +} + +/* 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); + + /* XXX this is part of HW TCL */ + /* XXX endian control */ + 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->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; + } + + rs->rs = *state; + + 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_set_rasterizer_state(r300->draw, &rs->rs); + + r300->rs_state = rs; + r300->dirty_state |= R300_NEW_RASTERIZER; +} + +/* 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); + draw_flush(r300->draw); + + 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 << R300_SCISSORS_X_SHIFT) | + (state->maxy << 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); + /* XXX handing this off to Draw for now */ + draw_set_viewport_state(r300->draw, state); +} + +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); + /* XXX 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* state) +{ + struct r300_context* context = r300_context(pipe); + /* XXX handing this off to Draw for now */ + return draw_create_vertex_shader(context->draw, state); +} + +static void r300_bind_vs_state(struct pipe_context* pipe, void* state) { + struct r300_context* context = r300_context(pipe); + /* XXX handing this off to Draw for now */ + draw_bind_vertex_shader(context->draw, (struct draw_vertex_shader*)state); +} + +static void r300_delete_vs_state(struct pipe_context* pipe, void* state) +{ + struct r300_context* context = r300_context(pipe); + /* XXX handing this off to Draw for now */ + draw_delete_vertex_shader(context->draw, (struct draw_vertex_shader*)state); +} + +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; +} |