diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_state.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_state.c | 1750 |
1 files changed, 1750 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..bc2b62ba54 --- /dev/null +++ b/src/gallium/drivers/r300/r300_state.c @@ -0,0 +1,1750 @@ +/* + * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> + * Copyright 2009 Marek Olšák <maraeo@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 "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 "r300_cb.h" +#include "r300_context.h" +#include "r300_emit.h" +#include "r300_reg.h" +#include "r300_screen.h" +#include "r300_screen_buffer.h" +#include "r300_state_inlines.h" +#include "r300_fs.h" +#include "r300_texture.h" +#include "r300_vs.h" +#include "r300_winsys.h" + +/* r300_state: Functions used to intialize state context by translating + * Gallium state objects into semi-native r300 state objects. */ + +#define UPDATE_STATE(cso, atom) \ + if (cso != atom.state) { \ + atom.state = cso; \ + atom.dirty = TRUE; \ + } + +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); +} + +static unsigned bgra_cmask(unsigned mask) +{ + /* Gallium uses RGBA color ordering while R300 expects BGRA. */ + + return ((mask & PIPE_MASK_R) << 2) | + ((mask & PIPE_MASK_B) >> 2) | + (mask & (PIPE_MASK_G | PIPE_MASK_A)); +} + +/* 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_screen* r300screen = r300_screen(pipe->screen); + struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state); + uint32_t blend_control = 0; /* R300_RB3D_CBLEND: 0x4e04 */ + uint32_t alpha_blend_control = 0; /* R300_RB3D_ABLEND: 0x4e08 */ + uint32_t color_channel_mask = 0; /* R300_RB3D_COLOR_CHANNEL_MASK: 0x4e0c */ + uint32_t rop = 0; /* R300_RB3D_ROPCNTL: 0x4e18 */ + uint32_t dither = 0; /* R300_RB3D_DITHER_CTL: 0x4e50 */ + CB_LOCALS; + + if (state->rt[0].blend_enable) + { + unsigned eqRGB = state->rt[0].rgb_func; + unsigned srcRGB = state->rt[0].rgb_src_factor; + unsigned dstRGB = state->rt[0].rgb_dst_factor; + + unsigned eqA = state->rt[0].alpha_func; + unsigned srcA = state->rt[0].alpha_src_factor; + unsigned dstA = state->rt[0].alpha_dst_factor; + + /* despite the name, ALPHA_BLEND_ENABLE has nothing to do with alpha, + * this is just the crappy D3D naming */ + 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_control |= R300_READ_ENABLE; + + if (r300screen->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_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_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_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0; + } else if (blend_discard_if_src_alpha_1(srcRGB, srcA, + dstRGB, dstA)) { + blend_control |= R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1; + } else if (blend_discard_if_src_color_0(srcRGB, srcA, + dstRGB, dstA)) { + blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_0; + } else if (blend_discard_if_src_color_1(srcRGB, srcA, + dstRGB, dstA)) { + blend_control |= R300_DISCARD_SRC_PIXELS_SRC_COLOR_1; + } else if (blend_discard_if_src_alpha_color_0(srcRGB, srcA, + dstRGB, dstA)) { + blend_control |= + R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0; + } else if (blend_discard_if_src_alpha_color_1(srcRGB, srcA, + dstRGB, dstA)) { + blend_control |= + R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1; + } + } + + /* separate alpha */ + if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) { + blend_control |= R300_SEPARATE_ALPHA_ENABLE; + 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) { + rop = R300_RB3D_ROPCNTL_ROP_ENABLE | + (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT; + } + + /* Color channel masks for all MRTs. */ + color_channel_mask = bgra_cmask(state->rt[0].colormask); + if (r300screen->caps.is_r500 && state->independent_blend_enable) { + if (state->rt[1].blend_enable) { + color_channel_mask |= bgra_cmask(state->rt[1].colormask) << 4; + } + if (state->rt[2].blend_enable) { + color_channel_mask |= bgra_cmask(state->rt[2].colormask) << 8; + } + if (state->rt[3].blend_enable) { + color_channel_mask |= bgra_cmask(state->rt[3].colormask) << 12; + } + } + + /* Neither fglrx nor classic r300 ever set this, regardless of dithering + * state. Since it's an optional implementation detail, we can leave it + * out and never dither. + * + * This could be revisited if we ever get quality or conformance hints. + * + if (state->dither) { + dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT | + R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT; + } + */ + + /* Build a command buffer. */ + BEGIN_CB(blend->cb, 8); + OUT_CB_REG(R300_RB3D_ROPCNTL, rop); + OUT_CB_REG_SEQ(R300_RB3D_CBLEND, 3); + OUT_CB(blend_control); + OUT_CB(alpha_blend_control); + OUT_CB(color_channel_mask); + OUT_CB_REG(R300_RB3D_DITHER_CTL, dither); + END_CB; + + /* The same as above, but with no colorbuffer reads and writes. */ + BEGIN_CB(blend->cb_no_readwrite, 8); + OUT_CB_REG(R300_RB3D_ROPCNTL, rop); + OUT_CB_REG_SEQ(R300_RB3D_CBLEND, 3); + OUT_CB(0); + OUT_CB(0); + OUT_CB(0); + OUT_CB_REG(R300_RB3D_DITHER_CTL, dither); + END_CB; + + 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); + + UPDATE_STATE(state, r300->blend_state); +} + +/* 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); + struct r300_blend_color_state* state = + (struct r300_blend_color_state*)r300->blend_color_state.state; + CB_LOCALS; + + if (r300->screen->caps.is_r500) { + /* XXX if FP16 blending is enabled, we should use the FP16 format */ + BEGIN_CB(state->cb, 3); + OUT_CB_REG_SEQ(R500_RB3D_CONSTANT_COLOR_AR, 2); + OUT_CB(float_to_fixed10(color->color[0]) | + (float_to_fixed10(color->color[3]) << 16)); + OUT_CB(float_to_fixed10(color->color[2]) | + (float_to_fixed10(color->color[1]) << 16)); + END_CB; + } else { + union util_color uc; + util_pack_color(color->color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); + + BEGIN_CB(state->cb, 2); + OUT_CB_REG(R300_RB3D_BLEND_COLOR, uc.ui); + END_CB; + } + + r300->blend_color_state.dirty = TRUE; +} + +static void r300_set_clip_state(struct pipe_context* pipe, + const struct pipe_clip_state* state) +{ + struct r300_context* r300 = r300_context(pipe); + struct r300_clip_state *clip = + (struct r300_clip_state*)r300->clip_state.state; + CB_LOCALS; + + clip->clip = *state; + + if (r300->screen->caps.has_tcl) { + BEGIN_CB(clip->cb, 29); + OUT_CB_REG(R300_VAP_PVS_VECTOR_INDX_REG, + (r300->screen->caps.is_r500 ? + R500_PVS_UCP_START : R300_PVS_UCP_START)); + OUT_CB_ONE_REG(R300_VAP_PVS_UPLOAD_DATA, 6 * 4); + OUT_CB_TABLE(state->ucp, 6 * 4); + OUT_CB_REG(R300_VAP_CLIP_CNTL, ((1 << state->nr) - 1) | + R300_PS_UCP_MODE_CLIP_AS_TRIFAN); + END_CB; + + r300->clip_state.dirty = TRUE; + } else { + draw_flush(r300->draw); + draw_set_clip_state(r300->draw, state); + } +} + +static void +r300_set_sample_mask(struct pipe_context *pipe, + unsigned sample_mask) +{ +} + + +/* 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(pipe->screen)->caps; + struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); + CB_LOCALS; + + dsa->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].valuemask << R300_STENCILMASK_SHIFT) | + (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT); + + if (state->stencil[1].enabled) { + dsa->two_sided = TRUE; + + 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].valuemask << R300_STENCILMASK_SHIFT) | + (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT); + + if (caps->is_r500) { + dsa->z_buffer_control |= R500_STENCIL_REFMASK_FRONT_BACK; + } else { + dsa->two_sided_stencil_ref = + (state->stencil[0].valuemask != state->stencil[1].valuemask || + state->stencil[0].writemask != state->stencil[1].writemask); + } + } + } + + /* Alpha test setup. */ + if (state->alpha.enabled) { + dsa->alpha_function = + r300_translate_alpha_function(state->alpha.func) | + R300_FG_ALPHA_FUNC_ENABLE; + + /* We could use 10bit alpha ref but who needs that? */ + dsa->alpha_function |= float_to_ubyte(state->alpha.ref_value); + + if (caps->is_r500) + dsa->alpha_function |= R500_FG_ALPHA_FUNC_8BIT; + } + + BEGIN_CB(&dsa->cb_begin, 8); + OUT_CB_REG(R300_FG_ALPHA_FUNC, dsa->alpha_function); + OUT_CB_REG_SEQ(R300_ZB_CNTL, 3); + OUT_CB(dsa->z_buffer_control); + OUT_CB(dsa->z_stencil_control); + OUT_CB(dsa->stencil_ref_mask); + OUT_CB_REG(R500_ZB_STENCILREFMASK_BF, dsa->stencil_ref_bf); + END_CB; + + BEGIN_CB(dsa->cb_no_readwrite, 8); + OUT_CB_REG(R300_FG_ALPHA_FUNC, dsa->alpha_function); + OUT_CB_REG_SEQ(R300_ZB_CNTL, 3); + OUT_CB(0); + OUT_CB(0); + OUT_CB(0); + OUT_CB_REG(R500_ZB_STENCILREFMASK_BF, 0); + END_CB; + + return (void*)dsa; +} + +static void r300_dsa_inject_stencilref(struct r300_context *r300) +{ + struct r300_dsa_state *dsa = + (struct r300_dsa_state*)r300->dsa_state.state; + + if (!dsa) + return; + + dsa->stencil_ref_mask = + (dsa->stencil_ref_mask & ~R300_STENCILREF_MASK) | + r300->stencil_ref.ref_value[0]; + dsa->stencil_ref_bf = + (dsa->stencil_ref_bf & ~R300_STENCILREF_MASK) | + r300->stencil_ref.ref_value[1]; +} + +/* Bind DSA state. */ +static void r300_bind_dsa_state(struct pipe_context* pipe, + void* state) +{ + struct r300_context* r300 = r300_context(pipe); + + if (!state) { + return; + } + + UPDATE_STATE(state, r300->dsa_state); + + r300_dsa_inject_stencilref(r300); +} + +/* Free DSA state. */ +static void r300_delete_dsa_state(struct pipe_context* pipe, + void* state) +{ + FREE(state); +} + +static void r300_set_stencil_ref(struct pipe_context* pipe, + const struct pipe_stencil_ref* sr) +{ + struct r300_context* r300 = r300_context(pipe); + + r300->stencil_ref = *sr; + + r300_dsa_inject_stencilref(r300); + r300->dsa_state.dirty = TRUE; +} + +/* This switcheroo is needed just because of goddamned MACRO_SWITCH. */ +static void r300_fb_set_tiling_flags(struct r300_context *r300, + const struct pipe_framebuffer_state *old_state, + const struct pipe_framebuffer_state *new_state) +{ + struct r300_texture *tex; + unsigned i, level; + + /* Set tiling flags for new surfaces. */ + for (i = 0; i < new_state->nr_cbufs; i++) { + tex = r300_texture(new_state->cbufs[i]->texture); + level = new_state->cbufs[i]->level; + + r300->rws->buffer_set_tiling(r300->rws, tex->buffer, + tex->pitch[0] * util_format_get_blocksize(tex->b.b.format), + tex->microtile, + tex->mip_macrotile[level]); + } + if (new_state->zsbuf) { + tex = r300_texture(new_state->zsbuf->texture); + level = new_state->zsbuf->level; + + r300->rws->buffer_set_tiling(r300->rws, tex->buffer, + tex->pitch[0] * util_format_get_blocksize(tex->b.b.format), + tex->microtile, + tex->mip_macrotile[level]); + } +} + +static void r300_print_fb_surf_info(struct pipe_surface *surf, unsigned index, + const char *binding) +{ + struct pipe_resource *tex = surf->texture; + struct r300_texture *rtex = r300_texture(tex); + + fprintf(stderr, + "r300: %s[%i] Dim: %ix%i, Offset: %i, ZSlice: %i, " + "Face: %i, Level: %i, Format: %s\n" + + "r300: TEX: Macro: %s, Micro: %s, Pitch: %i, " + "Dim: %ix%ix%i, LastLevel: %i, Format: %s\n", + + binding, index, surf->width, surf->height, surf->offset, + surf->zslice, surf->face, surf->level, + util_format_short_name(surf->format), + + rtex->macrotile ? "YES" : " NO", rtex->microtile ? "YES" : " NO", + rtex->hwpitch[0], tex->width0, tex->height0, tex->depth0, + tex->last_level, util_format_short_name(tex->format)); +} + +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_framebuffer_state *old_state = r300->fb_state.state; + unsigned max_width, max_height, i; + uint32_t zbuffer_bpp = 0; + + if (state->nr_cbufs > 4) { + fprintf(stderr, "r300: Implementation error: Too many MRTs in %s, " + "refusing to bind framebuffer state!\n", __FUNCTION__); + return; + } + + if (r300->screen->caps.is_r500) { + max_width = max_height = 4096; + } else if (r300->screen->caps.is_r400) { + max_width = max_height = 4021; + } else { + max_width = max_height = 2560; + } + + if (state->width > max_width || state->height > max_height) { + fprintf(stderr, "r300: Implementation error: Render targets are too " + "big in %s, refusing to bind framebuffer state!\n", __FUNCTION__); + return; + } + + if (r300->draw) { + draw_flush(r300->draw); + } + + r300->fb_state.dirty = TRUE; + + /* If nr_cbufs is changed from zero to non-zero or vice versa... */ + if (!!old_state->nr_cbufs != !!state->nr_cbufs) { + r300->blend_state.dirty = TRUE; + } + /* If zsbuf is set from NULL to non-NULL or vice versa.. */ + if (!!old_state->zsbuf != !!state->zsbuf) { + r300->dsa_state.dirty = TRUE; + } + + /* The tiling flags are dependent on the surface miplevel, unfortunately. */ + r300_fb_set_tiling_flags(r300, r300->fb_state.state, state); + + memcpy(r300->fb_state.state, state, sizeof(struct pipe_framebuffer_state)); + + r300->fb_state.size = (10 * state->nr_cbufs) + (2 * (4 - state->nr_cbufs)) + + (state->zsbuf ? 10 : 0) + 11; + + /* Polygon offset depends on the zbuffer bit depth. */ + if (state->zsbuf && r300->polygon_offset_enabled) { + switch (util_format_get_blocksize(state->zsbuf->texture->format)) { + case 2: + zbuffer_bpp = 16; + break; + case 4: + zbuffer_bpp = 24; + break; + } + + if (r300->zbuffer_bpp != zbuffer_bpp) { + r300->zbuffer_bpp = zbuffer_bpp; + r300->rs_state.dirty = TRUE; + } + } + + if (DBG_ON(r300, DBG_FB)) { + fprintf(stderr, "r300: set_framebuffer_state:\n"); + for (i = 0; i < state->nr_cbufs; i++) { + r300_print_fb_surf_info(state->cbufs[i], i, "CB"); + } + if (state->zsbuf) { + r300_print_fb_surf_info(state->zsbuf, 0, "ZB"); + } + } +} + +/* 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); + + return (void*)fs; +} + +void r300_mark_fs_code_dirty(struct r300_context *r300) +{ + struct r300_fragment_shader* fs = r300_fs(r300); + + r300->fs.dirty = TRUE; + r300->fs_rc_constant_state.dirty = TRUE; + r300->fs_constants.dirty = TRUE; + r300->fs.size = fs->shader->cb_code_size; + + if (r300->screen->caps.is_r500) { + r300->fs_rc_constant_state.size = fs->shader->rc_state_count * 7; + r300->fs_constants.size = fs->shader->externals_count * 4 + 3; + } else { + r300->fs_rc_constant_state.size = fs->shader->rc_state_count * 5; + r300->fs_constants.size = fs->shader->externals_count * 4 + 1; + } +} + +/* 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.state = NULL; + return; + } + + r300->fs.state = fs; + r300_pick_fragment_shader(r300); + r300_mark_fs_code_dirty(r300); + + r300->rs_block_state.dirty = TRUE; /* Will be updated before the emission. */ +} + +/* 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->cb_code); + 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); + int i; + float psiz; + + /* Copy rasterizer state. */ + rs->rs = *state; + rs->rs_draw = *state; + + /* Override some states for Draw. */ + rs->rs_draw.sprite_coord_enable = 0; /* We can do this in HW. */ + +#ifdef PIPE_ARCH_LITTLE_ENDIAN + rs->vap_control_status = R300_VC_NO_SWAP; +#else + rs->vap_control_status = R300_VC_32BIT_SWAP; +#endif + + /* If no TCL engine is present, turn off the HW TCL. */ + if (!r300_screen(pipe->screen)->caps.has_tcl) { + rs->vap_control_status |= R300_VAP_TCL_BYPASS; + } + + /* Point size width and height. */ + rs->point_size = + pack_float_16_6x(state->point_size) | + (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT); + + /* Point size clamping. */ + if (state->point_size_per_vertex) { + /* Per-vertex point size. + * Clamp to [0, max FB size] */ + psiz = pipe->screen->get_paramf(pipe->screen, + PIPE_CAP_MAX_POINT_WIDTH); + rs->point_minmax = + pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MAX_SHIFT; + } else { + /* We cannot disable the point-size vertex output, + * so clamp it. */ + psiz = state->point_size; + rs->point_minmax = + (pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MIN_SHIFT) | + (pack_float_16_6x(psiz) << R300_GA_POINT_MINMAX_MAX_SHIFT); + } + + /* Line control. */ + rs->line_control = pack_float_16_6x(state->line_width) | + R300_GA_LINE_CNTL_END_TYPE_COMP; + + /* Enable polygon mode */ + if (state->fill_front != PIPE_POLYGON_MODE_FILL || + state->fill_back != PIPE_POLYGON_MODE_FILL) { + rs->polygon_mode = R300_GA_POLY_MODE_DUAL; + } + + /* Front face */ + if (state->front_ccw) + rs->cull_mode = R300_FRONT_FACE_CCW; + else + rs->cull_mode = R300_FRONT_FACE_CW; + + /* Polygon offset */ + if (util_get_offset(state, state->fill_front)) { + rs->polygon_offset_enable |= R300_FRONT_ENABLE; + } + if (util_get_offset(state, state->fill_back)) { + rs->polygon_offset_enable |= R300_BACK_ENABLE; + } + + /* Polygon mode */ + if (rs->polygon_mode) { + rs->polygon_mode |= + r300_translate_polygon_mode_front(state->fill_front); + rs->polygon_mode |= + r300_translate_polygon_mode_back(state->fill_back); + } + + if (state->cull_face & PIPE_FACE_FRONT) { + rs->cull_mode |= R300_CULL_FRONT; + } + if (state->cull_face & PIPE_FACE_BACK) { + rs->cull_mode |= R300_CULL_BACK; + } + + if (rs->polygon_offset_enable) { + rs->depth_offset = state->offset_units; + rs->depth_scale = 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; + } + + rs->clip_rule = state->scissor ? 0xAAAA : 0xFFFF; + + /* Point sprites */ + if (state->sprite_coord_enable) { + rs->stuffing_enable = R300_GB_POINT_STUFF_ENABLE; + for (i = 0; i < 8; i++) { + if (state->sprite_coord_enable & (1 << i)) + rs->stuffing_enable |= + R300_GB_TEX_STR << (R300_GB_TEX0_SOURCE_SHIFT + (i*2)); + } + + rs->point_texcoord_left = 0.0f; + rs->point_texcoord_right = 1.0f; + + switch (state->sprite_coord_mode) { + case PIPE_SPRITE_COORD_UPPER_LEFT: + rs->point_texcoord_top = 0.0f; + rs->point_texcoord_bottom = 1.0f; + break; + case PIPE_SPRITE_COORD_LOWER_LEFT: + rs->point_texcoord_top = 1.0f; + rs->point_texcoord_bottom = 0.0f; + break; + } + } + + if (state->gl_rasterization_rules) { + rs->multisample_position_0 = 0x66666666; + rs->multisample_position_1 = 0x6666666; + } + + 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; + int last_sprite_coord_enable = r300->sprite_coord_enable; + boolean last_two_sided_color = r300->two_sided_color; + + if (r300->draw && rs) { + draw_flush(r300->draw); + draw_set_rasterizer_state(r300->draw, &rs->rs_draw, state); + } + + if (rs) { + r300->polygon_offset_enabled = (rs->rs.offset_point || + rs->rs.offset_line || + rs->rs.offset_tri); + r300->sprite_coord_enable = rs->rs.sprite_coord_enable; + r300->two_sided_color = rs->rs.light_twoside; + } else { + r300->polygon_offset_enabled = FALSE; + r300->sprite_coord_enable = 0; + r300->two_sided_color = FALSE; + } + + UPDATE_STATE(state, r300->rs_state); + r300->rs_state.size = 25 + (r300->polygon_offset_enabled ? 5 : 0) + + (r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0) ? 5 : 0); + + if (last_sprite_coord_enable != r300->sprite_coord_enable || + last_two_sided_color != r300->two_sided_color) { + r300->rs_block_state.dirty = TRUE; + } +} + +/* 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); + boolean is_r500 = r300->screen->caps.is_r500; + int lod_bias; + union util_color uc; + + sampler->state = *state; + + /* r300 doesn't handle CLAMP and MIRROR_CLAMP correctly when either MAG + * or MIN filter is NEAREST. Since texwrap produces same results + * for CLAMP and CLAMP_TO_EDGE, we use them instead. */ + if (sampler->state.min_img_filter == PIPE_TEX_FILTER_NEAREST || + sampler->state.mag_img_filter == PIPE_TEX_FILTER_NEAREST) { + /* Wrap S. */ + if (sampler->state.wrap_s == PIPE_TEX_WRAP_CLAMP) + sampler->state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + else if (sampler->state.wrap_s == PIPE_TEX_WRAP_MIRROR_CLAMP) + sampler->state.wrap_s = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE; + + /* Wrap T. */ + if (sampler->state.wrap_t == PIPE_TEX_WRAP_CLAMP) + sampler->state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + else if (sampler->state.wrap_t == PIPE_TEX_WRAP_MIRROR_CLAMP) + sampler->state.wrap_t = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE; + + /* Wrap R. */ + if (sampler->state.wrap_r == PIPE_TEX_WRAP_CLAMP) + sampler->state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + else if (sampler->state.wrap_r == PIPE_TEX_WRAP_MIRROR_CLAMP) + sampler->state.wrap_r = PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE; + } + + sampler->filter0 |= + (r300_translate_wrap(sampler->state.wrap_s) << R300_TX_WRAP_S_SHIFT) | + (r300_translate_wrap(sampler->state.wrap_t) << R300_TX_WRAP_T_SHIFT) | + (r300_translate_wrap(sampler->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 > 0); + + sampler->filter0 |= r300_anisotropy(state->max_anisotropy); + + /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */ + /* We must pass these to the merge 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), -(1 << 9), (1 << 9) - 1); + + sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT; + + /* This is very high quality anisotropic filtering for R5xx. + * It's good for benchmarking the performance of texturing but + * in practice we don't want to slow down the driver because it's + * a pretty good performance killer. Feel free to play with it. */ + if (DBG_ON(r300, DBG_ANISOHQ) && is_r500) { + sampler->filter1 |= r500_anisotropy(state->max_anisotropy); + } + + util_pack_color(state->border_color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc); + sampler->border_color = uc.ui; + + /* R500-specific fixups and optimizations */ + if (r300->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); + struct r300_textures_state* state = + (struct r300_textures_state*)r300->textures_state.state; + unsigned tex_units = r300->screen->caps.num_tex_units; + + if (count > tex_units) { + return; + } + + memcpy(state->sampler_states, states, sizeof(void*) * count); + state->sampler_state_count = count; + + r300->textures_state.dirty = TRUE; +} + +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 uint32_t r300_assign_texture_cache_region(unsigned index, unsigned num) +{ + /* This looks like a hack, but I believe it's suppose to work like + * that. To illustrate how this works, let's assume you have 5 textures. + * From docs, 5 and the successive numbers are: + * + * FOURTH_1 = 5 + * FOURTH_2 = 6 + * FOURTH_3 = 7 + * EIGHTH_0 = 8 + * EIGHTH_1 = 9 + * + * First 3 textures will get 3/4 of size of the cache, divived evenly + * between them. The last 1/4 of the cache must be divided between + * the last 2 textures, each will therefore get 1/8 of the cache. + * Why not just to use "5 + texture_index" ? + * + * This simple trick works for all "num" <= 16. + */ + if (num <= 1) + return R300_TX_CACHE(R300_TX_CACHE_WHOLE); + else + return R300_TX_CACHE(num + index); +} + +static void r300_set_fragment_sampler_views(struct pipe_context* pipe, + unsigned count, + struct pipe_sampler_view** views) +{ + struct r300_context* r300 = r300_context(pipe); + struct r300_textures_state* state = + (struct r300_textures_state*)r300->textures_state.state; + struct r300_texture *texture; + unsigned i, real_num_views = 0, view_index = 0; + unsigned tex_units = r300->screen->caps.num_tex_units; + boolean dirty_tex = FALSE; + + if (count > tex_units) { + return; + } + + /* Calculate the real number of views. */ + for (i = 0; i < count; i++) { + if (views[i]) + real_num_views++; + } + + for (i = 0; i < count; i++) { + if (&state->sampler_views[i]->base != views[i]) { + pipe_sampler_view_reference( + (struct pipe_sampler_view**)&state->sampler_views[i], + views[i]); + + if (!views[i]) { + continue; + } + + /* A new sampler view (= texture)... */ + dirty_tex = TRUE; + + /* Set the texrect factor in the fragment shader. + * Needed for RECT and NPOT fallback. */ + texture = r300_texture(views[i]->texture); + if (texture->uses_pitch) { + r300->fs_rc_constant_state.dirty = TRUE; + } + + state->sampler_views[i]->texcache_region = + r300_assign_texture_cache_region(view_index, real_num_views); + view_index++; + } + } + + for (i = count; i < tex_units; i++) { + if (state->sampler_views[i]) { + pipe_sampler_view_reference( + (struct pipe_sampler_view**)&state->sampler_views[i], + NULL); + } + } + + state->sampler_view_count = count; + + r300->textures_state.dirty = TRUE; + + if (dirty_tex) { + r300->texture_cache_inval.dirty = TRUE; + } +} + +static struct pipe_sampler_view * +r300_create_sampler_view(struct pipe_context *pipe, + struct pipe_resource *texture, + const struct pipe_sampler_view *templ) +{ + struct r300_sampler_view *view = CALLOC_STRUCT(r300_sampler_view); + struct r300_texture *tex = r300_texture(texture); + + if (view) { + view->base = *templ; + view->base.reference.count = 1; + view->base.context = pipe; + view->base.texture = NULL; + pipe_resource_reference(&view->base.texture, texture); + + view->swizzle[0] = templ->swizzle_r; + view->swizzle[1] = templ->swizzle_g; + view->swizzle[2] = templ->swizzle_b; + view->swizzle[3] = templ->swizzle_a; + + view->format = tex->tx_format; + view->format.format1 |= r300_translate_texformat(templ->format, + view->swizzle); + if (r300_screen(pipe->screen)->caps.is_r500) { + view->format.format2 |= r500_tx_format_msb_bit(templ->format); + } + } + + return (struct pipe_sampler_view*)view; +} + +static void +r300_sampler_view_destroy(struct pipe_context *pipe, + struct pipe_sampler_view *view) +{ + pipe_resource_reference(&view->texture, NULL); + FREE(view); +} + +static void r300_set_scissor_state(struct pipe_context* pipe, + const struct pipe_scissor_state* state) +{ + struct r300_context* r300 = r300_context(pipe); + + memcpy(r300->scissor_state.state, state, + sizeof(struct pipe_scissor_state)); + + r300->scissor_state.dirty = TRUE; +} + +static void r300_set_viewport_state(struct pipe_context* pipe, + const struct pipe_viewport_state* state) +{ + struct r300_context* r300 = r300_context(pipe); + struct r300_viewport_state* viewport = + (struct r300_viewport_state*)r300->viewport_state.state; + + r300->viewport = *state; + + if (r300->draw) { + draw_flush(r300->draw); + draw_set_viewport_state(r300->draw, state); + viewport->vte_control = R300_VTX_XY_FMT | R300_VTX_Z_FMT; + return; + } + + /* Do the transform in HW. */ + viewport->vte_control = R300_VTX_W0_FMT; + + if (state->scale[0] != 1.0f) { + viewport->xscale = state->scale[0]; + viewport->vte_control |= R300_VPORT_X_SCALE_ENA; + } + if (state->scale[1] != 1.0f) { + viewport->yscale = state->scale[1]; + viewport->vte_control |= R300_VPORT_Y_SCALE_ENA; + } + if (state->scale[2] != 1.0f) { + viewport->zscale = state->scale[2]; + viewport->vte_control |= R300_VPORT_Z_SCALE_ENA; + } + if (state->translate[0] != 0.0f) { + viewport->xoffset = state->translate[0]; + viewport->vte_control |= R300_VPORT_X_OFFSET_ENA; + } + if (state->translate[1] != 0.0f) { + viewport->yoffset = state->translate[1]; + viewport->vte_control |= R300_VPORT_Y_OFFSET_ENA; + } + if (state->translate[2] != 0.0f) { + viewport->zoffset = state->translate[2]; + viewport->vte_control |= R300_VPORT_Z_OFFSET_ENA; + } + + r300->viewport_state.dirty = TRUE; + if (r300->fs.state && r300_fs(r300)->shader->inputs.wpos != ATTR_UNUSED) { + r300->fs_rc_constant_state.dirty = TRUE; + } +} + +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); + struct pipe_vertex_buffer *vbo; + unsigned i, max_index = (1 << 24) - 1; + boolean any_user_buffer = FALSE; + + if (count == r300->vertex_buffer_count && + memcmp(r300->vertex_buffer, buffers, + sizeof(struct pipe_vertex_buffer) * count) == 0) { + return; + } + + if (r300->screen->caps.has_tcl) { + /* HW TCL. */ + r300->incompatible_vb_layout = FALSE; + + /* Check if the strides and offsets are aligned to the size of DWORD. */ + for (i = 0; i < count; i++) { + if (buffers[i].buffer) { + if (buffers[i].stride % 4 != 0 || + buffers[i].buffer_offset % 4 != 0) { + r300->incompatible_vb_layout = TRUE; + break; + } + } + } + + for (i = 0; i < count; i++) { + /* Why, yes, I AM casting away constness. How did you know? */ + vbo = (struct pipe_vertex_buffer*)&buffers[i]; + + /* Skip NULL buffers */ + if (!buffers[i].buffer) { + continue; + } + + if (r300_buffer_is_user_buffer(vbo->buffer)) { + any_user_buffer = TRUE; + } + + if (vbo->max_index == ~0) { + /* if no VBO stride then only one vertex value so max index is 1 */ + /* should think about converting to VS constants like svga does */ + if (!vbo->stride) + vbo->max_index = 1; + else + vbo->max_index = + (vbo->buffer->width0 - vbo->buffer_offset) / vbo->stride; + } + + max_index = MIN2(vbo->max_index, max_index); + } + + r300->any_user_vbs = any_user_buffer; + r300->vertex_buffer_max_index = max_index; + + } else { + /* SW TCL. */ + draw_flush(r300->draw); + draw_set_vertex_buffers(r300->draw, count, buffers); + } + + /* Common code. */ + for (i = 0; i < count; i++) { + /* Reference our buffer. */ + pipe_resource_reference(&r300->vertex_buffer[i].buffer, buffers[i].buffer); + } + for (; i < r300->vertex_buffer_count; i++) { + /* Dereference any old buffers. */ + pipe_resource_reference(&r300->vertex_buffer[i].buffer, NULL); + } + + memcpy(r300->vertex_buffer, buffers, + sizeof(struct pipe_vertex_buffer) * count); + r300->vertex_buffer_count = count; +} + +/* Initialize the PSC tables. */ +static void r300_vertex_psc(struct r300_vertex_element_state *velems) +{ + struct r300_vertex_stream_state *vstream = &velems->vertex_stream; + uint16_t type, swizzle; + enum pipe_format format; + unsigned i; + + if (velems->count > 16) { + fprintf(stderr, "r300: More than 16 vertex elements are not supported," + " requested %i, using 16.\n", velems->count); + velems->count = 16; + } + + /* Vertex shaders have no semantics on their inputs, + * so PSC should just route stuff based on the vertex elements, + * and not on attrib information. */ + for (i = 0; i < velems->count; i++) { + format = velems->hw_format[i]; + + type = r300_translate_vertex_data_type(format); + if (type == R300_INVALID_FORMAT) { + fprintf(stderr, "r300: Bad vertex format %s.\n", + util_format_short_name(format)); + assert(0); + abort(); + } + + type |= i << R300_DST_VEC_LOC_SHIFT; + swizzle = r300_translate_vertex_data_swizzle(format); + + if (i & 1) { + vstream->vap_prog_stream_cntl[i >> 1] |= type << 16; + vstream->vap_prog_stream_cntl_ext[i >> 1] |= swizzle << 16; + } else { + vstream->vap_prog_stream_cntl[i >> 1] |= type; + vstream->vap_prog_stream_cntl_ext[i >> 1] |= swizzle; + } + } + + /* Set the last vector in the PSC. */ + if (i) { + i -= 1; + } + vstream->vap_prog_stream_cntl[i >> 1] |= + (R300_LAST_VEC << (i & 1 ? 16 : 0)); + + vstream->count = (i >> 1) + 1; +} + +#define FORMAT_REPLACE(what, withwhat) \ + case PIPE_FORMAT_##what: *format = PIPE_FORMAT_##withwhat; break + +static void* r300_create_vertex_elements_state(struct pipe_context* pipe, + unsigned count, + const struct pipe_vertex_element* attribs) +{ + struct r300_vertex_element_state *velems; + unsigned i; + enum pipe_format *format; + + assert(count <= PIPE_MAX_ATTRIBS); + velems = CALLOC_STRUCT(r300_vertex_element_state); + if (velems != NULL) { + velems->count = count; + memcpy(velems->velem, attribs, sizeof(struct pipe_vertex_element) * count); + + if (r300_screen(pipe->screen)->caps.has_tcl) { + /* Set the best hw format in case the original format is not + * supported by hw. */ + for (i = 0; i < count; i++) { + velems->hw_format[i] = velems->velem[i].src_format; + format = &velems->hw_format[i]; + + /* This is basically the list of unsupported formats. + * For now we don't care about the alignment, that's going to + * be sorted out after the PSC setup. */ + switch (*format) { + FORMAT_REPLACE(R64_FLOAT, R32_FLOAT); + FORMAT_REPLACE(R64G64_FLOAT, R32G32_FLOAT); + FORMAT_REPLACE(R64G64B64_FLOAT, R32G32B32_FLOAT); + FORMAT_REPLACE(R64G64B64A64_FLOAT, R32G32B32A32_FLOAT); + + FORMAT_REPLACE(R32_UNORM, R32_FLOAT); + FORMAT_REPLACE(R32G32_UNORM, R32G32_FLOAT); + FORMAT_REPLACE(R32G32B32_UNORM, R32G32B32_FLOAT); + FORMAT_REPLACE(R32G32B32A32_UNORM, R32G32B32A32_FLOAT); + + FORMAT_REPLACE(R32_USCALED, R32_FLOAT); + FORMAT_REPLACE(R32G32_USCALED, R32G32_FLOAT); + FORMAT_REPLACE(R32G32B32_USCALED, R32G32B32_FLOAT); + FORMAT_REPLACE(R32G32B32A32_USCALED,R32G32B32A32_FLOAT); + + FORMAT_REPLACE(R32_SNORM, R32_FLOAT); + FORMAT_REPLACE(R32G32_SNORM, R32G32_FLOAT); + FORMAT_REPLACE(R32G32B32_SNORM, R32G32B32_FLOAT); + FORMAT_REPLACE(R32G32B32A32_SNORM, R32G32B32A32_FLOAT); + + FORMAT_REPLACE(R32_SSCALED, R32_FLOAT); + FORMAT_REPLACE(R32G32_SSCALED, R32G32_FLOAT); + FORMAT_REPLACE(R32G32B32_SSCALED, R32G32B32_FLOAT); + FORMAT_REPLACE(R32G32B32A32_SSCALED,R32G32B32A32_FLOAT); + + FORMAT_REPLACE(R32_FIXED, R32_FLOAT); + FORMAT_REPLACE(R32G32_FIXED, R32G32_FLOAT); + FORMAT_REPLACE(R32G32B32_FIXED, R32G32B32_FLOAT); + FORMAT_REPLACE(R32G32B32A32_FIXED, R32G32B32A32_FLOAT); + + default:; + } + + velems->incompatible_layout = + velems->incompatible_layout || + velems->velem[i].src_format != velems->hw_format[i] || + velems->velem[i].src_offset % 4 != 0; + } + + /* Now setup PSC. + * The unused components will be replaced by (..., 0, 1). */ + r300_vertex_psc(velems); + + /* Align the formats to the size of DWORD. + * We only care about the blocksizes of the formats since + * swizzles are already set up. + * Also compute the vertex size. */ + for (i = 0; i < count; i++) { + /* This is OK because we check for aligned strides too. */ + velems->hw_format_size[i] = + align(util_format_get_blocksize(velems->hw_format[i]), 4); + velems->vertex_size_dwords += velems->hw_format_size[i] / 4; + } + } + } + return velems; +} + +static void r300_bind_vertex_elements_state(struct pipe_context *pipe, + void *state) +{ + struct r300_context *r300 = r300_context(pipe); + struct r300_vertex_element_state *velems = state; + + if (velems == NULL) { + return; + } + + r300->velems = velems; + + if (r300->draw) { + draw_flush(r300->draw); + draw_set_vertex_elements(r300->draw, velems->count, velems->velem); + return; + } + + UPDATE_STATE(&velems->vertex_stream, r300->vertex_stream_state); + r300->vertex_stream_state.size = (1 + velems->vertex_stream.count) * 2; +} + +static void r300_delete_vertex_elements_state(struct pipe_context *pipe, void *state) +{ + FREE(state); +} + +static void* r300_create_vs_state(struct pipe_context* pipe, + const struct pipe_shader_state* shader) +{ + struct r300_context* r300 = r300_context(pipe); + + 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); + + if (r300->screen->caps.has_tcl) { + r300_init_vs_outputs(vs); + r300_translate_vertex_shader(r300, vs); + } else { + r300_draw_init_vertex_shader(r300->draw, vs); + } + + return vs; +} + +static void r300_bind_vs_state(struct pipe_context* pipe, void* shader) +{ + struct r300_context* r300 = r300_context(pipe); + struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; + + if (vs == NULL) { + r300->vs_state.state = NULL; + return; + } + if (vs == r300->vs_state.state) { + return; + } + r300->vs_state.state = vs; + + /* The majority of the RS block bits is dependent on the vertex shader. */ + r300->rs_block_state.dirty = TRUE; /* Will be updated before the emission. */ + + if (r300->screen->caps.has_tcl) { + r300->vs_state.dirty = TRUE; + r300->vs_state.size = + vs->code.length + 9 + + (vs->immediates_count ? vs->immediates_count * 4 + 3 : 0); + + if (vs->externals_count) { + r300->vs_constants.dirty = TRUE; + r300->vs_constants.size = vs->externals_count * 4 + 3; + } else { + r300->vs_constants.size = 0; + } + + r300->pvs_flush.dirty = TRUE; + } else { + draw_flush(r300->draw); + draw_bind_vertex_shader(r300->draw, + (struct draw_vertex_shader*)vs->draw_vs); + } +} + +static void r300_delete_vs_state(struct pipe_context* pipe, void* shader) +{ + struct r300_context* r300 = r300_context(pipe); + struct r300_vertex_shader* vs = (struct r300_vertex_shader*)shader; + + if (r300->screen->caps.has_tcl) { + rc_constants_destroy(&vs->code.constants); + } else { + draw_delete_vertex_shader(r300->draw, + (struct draw_vertex_shader*)vs->draw_vs); + } + + FREE((void*)vs->state.tokens); + FREE(shader); +} + +static void r300_set_constant_buffer(struct pipe_context *pipe, + uint shader, uint index, + struct pipe_resource *buf) +{ + struct r300_context* r300 = r300_context(pipe); + struct r300_constant_buffer *cbuf; + struct pipe_transfer *tr; + float *mapped; + int max_size = 0, max_size_bytes = 0, clamped_size = 0; + + switch (shader) { + case PIPE_SHADER_VERTEX: + cbuf = (struct r300_constant_buffer*)r300->vs_constants.state; + max_size = 256; + break; + case PIPE_SHADER_FRAGMENT: + cbuf = (struct r300_constant_buffer*)r300->fs_constants.state; + if (r300->screen->caps.is_r500) { + max_size = 256; + } else { + max_size = 32; + } + break; + default: + assert(0); + return; + } + max_size_bytes = max_size * 4 * sizeof(float); + + if (buf == NULL || buf->width0 == 0 || + (mapped = pipe_buffer_map(pipe, buf, PIPE_TRANSFER_READ, &tr)) == NULL) + { + cbuf->count = 0; + return; + } + + if (shader == PIPE_SHADER_FRAGMENT || + (shader == PIPE_SHADER_VERTEX && r300->screen->caps.has_tcl)) { + assert((buf->width0 % (4 * sizeof(float))) == 0); + + /* Check the size of the constant buffer. */ + /* XXX Subtract immediates and RC_STATE_* variables. */ + if (buf->width0 > max_size_bytes) { + fprintf(stderr, "r300: Max size of the constant buffer is " + "%i*4 floats.\n", max_size); + } + + clamped_size = MIN2(buf->width0, max_size_bytes); + cbuf->count = clamped_size / (4 * sizeof(float)); + + if (shader == PIPE_SHADER_FRAGMENT && !r300->screen->caps.is_r500) { + unsigned i,j; + + /* Convert constants to float24. */ + for (i = 0; i < cbuf->count; i++) + for (j = 0; j < 4; j++) + cbuf->constants[i][j] = pack_float24(mapped[i*4+j]); + } else { + memcpy(cbuf->constants, mapped, clamped_size); + } + } + + if (shader == PIPE_SHADER_VERTEX) { + if (r300->screen->caps.has_tcl) { + if (r300->vs_constants.size) { + r300->vs_constants.dirty = TRUE; + } + r300->pvs_flush.dirty = TRUE; + } else if (r300->draw) { + draw_set_mapped_constant_buffer(r300->draw, PIPE_SHADER_VERTEX, + 0, mapped, buf->width0); + } + } else if (shader == PIPE_SHADER_FRAGMENT) { + r300->fs_constants.dirty = TRUE; + } + + pipe_buffer_unmap(pipe, buf, tr); +} + +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_sample_mask = r300_set_sample_mask; + + 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_stencil_ref = r300_set_stencil_ref; + + 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_views = r300_set_fragment_sampler_views; + r300->context.create_sampler_view = r300_create_sampler_view; + r300->context.sampler_view_destroy = r300_sampler_view_destroy; + + 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.create_vertex_elements_state = r300_create_vertex_elements_state; + r300->context.bind_vertex_elements_state = r300_bind_vertex_elements_state; + r300->context.delete_vertex_elements_state = r300_delete_vertex_elements_state; + + 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; +} |