From bfb5dc68fcc9f5dee71f66d9499b8bdcde9627ea Mon Sep 17 00:00:00 2001 From: Francisco Jerez Date: Mon, 1 Feb 2010 01:19:10 +0100 Subject: Import a classic DRI driver for nv0x-nv2x. --- src/mesa/drivers/dri/nouveau/nv10_state_frag.c | 416 +++++++++++++++++++++++++ 1 file changed, 416 insertions(+) create mode 100644 src/mesa/drivers/dri/nouveau/nv10_state_frag.c (limited to 'src/mesa/drivers/dri/nouveau/nv10_state_frag.c') diff --git a/src/mesa/drivers/dri/nouveau/nv10_state_frag.c b/src/mesa/drivers/dri/nouveau/nv10_state_frag.c new file mode 100644 index 0000000000..c1df26ecce --- /dev/null +++ b/src/mesa/drivers/dri/nouveau/nv10_state_frag.c @@ -0,0 +1,416 @@ +/* + * Copyright (C) 2009 Francisco Jerez. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, 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 NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#include "nouveau_driver.h" +#include "nouveau_context.h" +#include "nouveau_gldefs.h" +#include "nouveau_class.h" +#include "nouveau_util.h" +#include "nv10_driver.h" +#include "nv20_driver.h" + +#define RC_IN_SHIFT_A 24 +#define RC_IN_SHIFT_B 16 +#define RC_IN_SHIFT_C 8 +#define RC_IN_SHIFT_D 0 +#define RC_IN_SHIFT_E 56 +#define RC_IN_SHIFT_F 48 +#define RC_IN_SHIFT_G 40 + +#define RC_IN_SOURCE(source) \ + ((uint64_t)NV10TCL_RC_IN_RGB_D_INPUT_##source) +#define RC_IN_USAGE(usage) \ + ((uint64_t)NV10TCL_RC_IN_RGB_D_COMPONENT_USAGE_##usage) +#define RC_IN_MAPPING(mapping) \ + ((uint64_t)NV10TCL_RC_IN_RGB_D_MAPPING_##mapping) + +#define RC_OUT_BIAS NV10TCL_RC_OUT_RGB_BIAS_BIAS_BY_NEGATIVE_ONE_HALF +#define RC_OUT_SCALE_1 NV10TCL_RC_OUT_RGB_SCALE_NONE +#define RC_OUT_SCALE_2 NV10TCL_RC_OUT_RGB_SCALE_SCALE_BY_TWO +#define RC_OUT_SCALE_4 NV10TCL_RC_OUT_RGB_SCALE_SCALE_BY_FOUR + +/* Make the combiner do: spare0_i = A_i * B_i */ +#define RC_OUT_AB NV10TCL_RC_OUT_RGB_AB_OUTPUT_SPARE0 +/* spare0_i = dot3(A, B) */ +#define RC_OUT_DOT_AB (NV10TCL_RC_OUT_RGB_AB_OUTPUT_SPARE0 | \ + NV10TCL_RC_OUT_RGB_AB_DOT_PRODUCT) +/* spare0_i = A_i * B_i + C_i * D_i */ +#define RC_OUT_SUM NV10TCL_RC_OUT_RGB_SUM_OUTPUT_SPARE0 + +struct combiner_state { + GLcontext *ctx; + int unit; + + /* GL state */ + GLenum mode; + GLenum *source; + GLenum *operand; + GLuint logscale; + + /* Derived HW state */ + uint64_t in; + uint32_t out; +}; + +/* Initialize a combiner_state struct from the texture unit + * context. */ +#define INIT_COMBINER(chan, ctx, rc, i) do { \ + struct gl_tex_env_combine_state *c = \ + ctx->Texture.Unit[i]._CurrentCombine; \ + (rc)->ctx = ctx; \ + (rc)->unit = i; \ + (rc)->mode = c->Mode##chan; \ + (rc)->source = c->Source##chan; \ + (rc)->operand = c->Operand##chan; \ + (rc)->logscale = c->ScaleShift##chan; \ + (rc)->in = (rc)->out = 0; \ + } while (0) + +/* Get the RC input source for the specified EXT_texture_env_combine + * argument. */ +static uint32_t +get_input_source(struct combiner_state *rc, int arg) +{ + switch (rc->source[arg]) { + case GL_TEXTURE: + return RC_IN_SOURCE(TEXTURE0) + rc->unit; + + case GL_TEXTURE0: + return RC_IN_SOURCE(TEXTURE0); + + case GL_TEXTURE1: + return RC_IN_SOURCE(TEXTURE1); + + case GL_TEXTURE2: + return RC_IN_SOURCE(TEXTURE2); + + case GL_TEXTURE3: + return RC_IN_SOURCE(TEXTURE3); + + case GL_CONSTANT: + return context_chipset(rc->ctx) >= 0x20 ? + RC_IN_SOURCE(CONSTANT_COLOR0) : + RC_IN_SOURCE(CONSTANT_COLOR0) + rc->unit; + + case GL_PRIMARY_COLOR: + return RC_IN_SOURCE(PRIMARY_COLOR); + + case GL_PREVIOUS: + return rc->unit ? RC_IN_SOURCE(SPARE0) + : RC_IN_SOURCE(PRIMARY_COLOR); + + default: + assert(0); + } +} + +/* Get the RC input mapping for the specified argument, possibly + * inverted or biased. */ +#define INVERT 0x1 +#define HALF_BIAS 0x2 + +static uint32_t +get_input_mapping(struct combiner_state *rc, int arg, int flags) +{ + int map = 0; + + switch (rc->operand[arg]) { + case GL_SRC_COLOR: + case GL_ONE_MINUS_SRC_COLOR: + map |= RC_IN_USAGE(RGB); + break; + + case GL_SRC_ALPHA: + case GL_ONE_MINUS_SRC_ALPHA: + map |= RC_IN_USAGE(ALPHA); + break; + } + + switch (rc->operand[arg]) { + case GL_SRC_COLOR: + case GL_SRC_ALPHA: + map |= (flags & INVERT ? RC_IN_MAPPING(UNSIGNED_INVERT) : + flags & HALF_BIAS ? RC_IN_MAPPING(HALF_BIAS_NORMAL) : + RC_IN_MAPPING(UNSIGNED_IDENTITY)); + break; + + case GL_ONE_MINUS_SRC_COLOR: + case GL_ONE_MINUS_SRC_ALPHA: + map |= (flags & INVERT ? RC_IN_MAPPING(UNSIGNED_IDENTITY) : + flags & HALF_BIAS ? RC_IN_MAPPING(HALF_BIAS_NEGATE) : + RC_IN_MAPPING(UNSIGNED_INVERT)); + break; + } + + return map; +} + +/* Bind the RC input variable to the EXT_texture_env_combine + * argument , possibly inverted or biased. */ +#define INPUT_ARG(rc, var, arg, flags) \ + (rc)->in |= (get_input_mapping(rc, arg, flags) | \ + get_input_source(rc, arg)) << RC_IN_SHIFT_##var + +/* Bind the RC input variable to the RC source . */ +#define INPUT_SRC(rc, var, src, chan) \ + (rc)->in |= (RC_IN_SOURCE(src) | \ + RC_IN_USAGE(chan)) << RC_IN_SHIFT_##var + +/* Bind the RC input variable to a constant +/-1 */ +#define INPUT_ONE(rc, var, flags) \ + (rc)->in |= (RC_IN_SOURCE(ZERO) | \ + (flags & INVERT ? RC_IN_MAPPING(EXPAND_NORMAL) : \ + RC_IN_MAPPING(UNSIGNED_INVERT))) << RC_IN_SHIFT_##var + +static void +setup_combiner(struct combiner_state *rc) +{ + switch (rc->mode) { + case GL_REPLACE: + INPUT_ARG(rc, A, 0, 0); + INPUT_ONE(rc, B, 0); + + rc->out = RC_OUT_AB; + break; + + case GL_MODULATE: + INPUT_ARG(rc, A, 0, 0); + INPUT_ARG(rc, B, 1, 0); + + rc->out = RC_OUT_AB; + break; + + case GL_ADD: + INPUT_ARG(rc, A, 0, 0); + INPUT_ONE(rc, B, 0); + INPUT_ARG(rc, C, 1, 0); + INPUT_ONE(rc, D, 0); + + rc->out = RC_OUT_SUM; + break; + + case GL_ADD_SIGNED: + INPUT_ARG(rc, A, 0, 0); + INPUT_ONE(rc, B, 0); + INPUT_ARG(rc, C, 1, 0); + INPUT_ONE(rc, D, 0); + + rc->out = RC_OUT_SUM | RC_OUT_BIAS; + break; + + case GL_INTERPOLATE: + INPUT_ARG(rc, A, 0, 0); + INPUT_ARG(rc, B, 2, 0); + INPUT_ARG(rc, C, 1, 0); + INPUT_ARG(rc, D, 2, INVERT); + + rc->out = RC_OUT_SUM; + break; + + case GL_SUBTRACT: + INPUT_ARG(rc, A, 0, 0); + INPUT_ONE(rc, B, 0); + INPUT_ARG(rc, C, 1, 0); + INPUT_ONE(rc, D, INVERT); + + rc->out = RC_OUT_SUM; + break; + + case GL_DOT3_RGB: + case GL_DOT3_RGBA: + INPUT_ARG(rc, A, 0, HALF_BIAS); + INPUT_ARG(rc, B, 1, HALF_BIAS); + + rc->out = RC_OUT_DOT_AB | RC_OUT_SCALE_4; + + assert(!rc->logscale); + break; + + default: + assert(0); + } + + switch (rc->logscale) { + case 0: + rc->out |= RC_OUT_SCALE_1; + break; + case 1: + rc->out |= RC_OUT_SCALE_2; + break; + case 2: + rc->out |= RC_OUT_SCALE_4; + break; + default: + assert(0); + } +} + +/* Write the register combiner state out to the hardware. */ +static void +nv10_load_combiner(GLcontext *ctx, int i, struct combiner_state *rc_a, + struct combiner_state *rc_c, uint32_t rc_const) +{ + struct nouveau_channel *chan = context_chan(ctx); + struct nouveau_grobj *celsius = context_eng3d(ctx); + + /* Enable the combiners we're going to need. */ + if (i == 1) { + if (rc_c->out || rc_a->out) + rc_c->out |= 0x5 << 27; + else + rc_c->out |= 0x3 << 27; + } + + BEGIN_RING(chan, celsius, NV10TCL_RC_IN_ALPHA(i), 1); + OUT_RING(chan, rc_a->in); + BEGIN_RING(chan, celsius, NV10TCL_RC_IN_RGB(i), 1); + OUT_RING(chan, rc_c->in); + BEGIN_RING(chan, celsius, NV10TCL_RC_COLOR(i), 1); + OUT_RING(chan, rc_const); + BEGIN_RING(chan, celsius, NV10TCL_RC_OUT_ALPHA(i), 1); + OUT_RING(chan, rc_a->out); + BEGIN_RING(chan, celsius, NV10TCL_RC_OUT_RGB(i), 1); + OUT_RING(chan, rc_c->out); +} + +static void +nv10_load_final(GLcontext *ctx, struct combiner_state *rc, int n) +{ + struct nouveau_channel *chan = context_chan(ctx); + struct nouveau_grobj *celsius = context_eng3d(ctx); + + BEGIN_RING(chan, celsius, NV10TCL_RC_FINAL0, 2); + OUT_RING(chan, rc->in); + OUT_RING(chan, rc->in >> 32); +} + +static void +nv20_load_combiner(GLcontext *ctx, int i, struct combiner_state *rc_a, + struct combiner_state *rc_c, uint32_t rc_const) +{ + struct nouveau_channel *chan = context_chan(ctx); + struct nouveau_grobj *kelvin = context_eng3d(ctx); + + BEGIN_RING(chan, kelvin, NV20TCL_RC_IN_ALPHA(i), 1); + OUT_RING(chan, rc_a->in); + BEGIN_RING(chan, kelvin, NV20TCL_RC_OUT_ALPHA(i), 1); + OUT_RING(chan, rc_a->out); + BEGIN_RING(chan, kelvin, NV20TCL_RC_IN_RGB(i), 1); + OUT_RING(chan, rc_c->in); + BEGIN_RING(chan, kelvin, NV20TCL_RC_OUT_RGB(i), 1); + OUT_RING(chan, rc_c->out); + BEGIN_RING(chan, kelvin, NV20TCL_RC_CONSTANT_COLOR0(i), 1); + OUT_RING(chan, rc_const); +} + +static void +nv20_load_final(GLcontext *ctx, struct combiner_state *rc, int n) +{ + struct nouveau_channel *chan = context_chan(ctx); + struct nouveau_grobj *kelvin = context_eng3d(ctx); + + BEGIN_RING(chan, kelvin, NV20TCL_RC_FINAL0, 2); + OUT_RING(chan, rc->in); + OUT_RING(chan, rc->in >> 32); + + BEGIN_RING(chan, kelvin, NV20TCL_RC_ENABLE, 1); + OUT_RING(chan, n); +} + +void +nv10_emit_tex_env(GLcontext *ctx, int emit) +{ + const int i = emit - NOUVEAU_STATE_TEX_ENV0; + struct combiner_state rc_a, rc_c; + uint32_t rc_const; + + /* Compute the new combiner state. */ + if (ctx->Texture.Unit[i]._ReallyEnabled) { + INIT_COMBINER(RGB, ctx, &rc_c, i); + + if (rc_c.mode == GL_DOT3_RGBA) + rc_a = rc_c; + else + INIT_COMBINER(A, ctx, &rc_a, i); + + setup_combiner(&rc_c); + setup_combiner(&rc_a); + + rc_const = pack_rgba_f(MESA_FORMAT_ARGB8888, + ctx->Texture.Unit[i].EnvColor); + + } else { + rc_a.in = rc_a.out = rc_c.in = rc_c.out = rc_const = 0; + } + + if (context_chipset(ctx) >= 0x20) + nv20_load_combiner(ctx, i, &rc_a, &rc_c, rc_const); + else + nv10_load_combiner(ctx, i, &rc_a, &rc_c, rc_const); + + context_dirty(ctx, FRAG); +} + +void +nv10_emit_frag(GLcontext *ctx, int emit) +{ + struct combiner_state rc = {}; + int n = log2i(ctx->Texture._EnabledUnits) + 1; + + /* + * The final fragment value equation is something like: + * x_i = A_i * B_i + (1 - A_i) * C_i + D_i + * x_alpha = G_alpha + * where D_i = E_i * F_i, i one of {red, green, blue}. + */ + if (ctx->Fog.ColorSumEnabled || ctx->Light.Enabled) { + INPUT_SRC(&rc, D, E_TIMES_F, RGB); + INPUT_SRC(&rc, F, SECONDARY_COLOR, RGB); + } + + if (ctx->Fog.Enabled) { + INPUT_SRC(&rc, A, FOG, ALPHA); + INPUT_SRC(&rc, C, FOG, RGB); + INPUT_SRC(&rc, E, FOG, ALPHA); + } else { + INPUT_ONE(&rc, A, 0); + INPUT_ONE(&rc, C, 0); + INPUT_ONE(&rc, E, 0); + } + + if (ctx->Texture._EnabledUnits) { + INPUT_SRC(&rc, B, SPARE0, RGB); + INPUT_SRC(&rc, G, SPARE0, ALPHA); + } else { + INPUT_SRC(&rc, B, PRIMARY_COLOR, RGB); + INPUT_SRC(&rc, G, PRIMARY_COLOR, ALPHA); + } + + if (context_chipset(ctx) >= 0x20) + nv20_load_final(ctx, &rc, n); + else + nv10_load_final(ctx, &rc, n); +} -- cgit v1.2.3