'lp_scene_queue.c',
'lp_screen.c',
'lp_setup.c',
+ 'lp_setup_debug.c',
'lp_setup_line.c',
'lp_setup_point.c',
'lp_setup_tri.c',
- 'lp_setup_coef.c',
- 'lp_setup_coef_intrin.c',
'lp_setup_vbuf.c',
'lp_state_blend.c',
'lp_state_clip.c',
'lp_state_derived.c',
'lp_state_fs.c',
+ 'lp_state_setup.c',
+ 'lp_state_setup_fallback.c',
'lp_state_gs.c',
'lp_state_rasterizer.c',
'lp_state_sampler.c',
#include "tgsi/tgsi_exec.h"
-#include "lp_setup.h"
+/**
+ * Describes how to compute the interpolation coefficients (a0, dadx, dady)
+ * from the vertices passed into our triangle/line/point functions by the
+ * draw module.
+ *
+ * Vertices are treated as an array of float[4] values, indexed by
+ * src_index.
+ *
+ * LP_INTERP_COLOR is translated to either LP_INTERP_CONSTANT or
+ * LINEAR depending on flatshade state.
+ */
+enum lp_interp {
+ LP_INTERP_CONSTANT,
+ LP_INTERP_COLOR,
+ LP_INTERP_LINEAR,
+ LP_INTERP_PERSPECTIVE,
+ LP_INTERP_POSITION,
+ LP_INTERP_FACING
+};
+
+struct lp_shader_input {
+ ushort interp:4; /* enum lp_interp */
+ ushort usage_mask:4; /* bitmask of TGSI_WRITEMASK_x flags */
+ ushort src_index:8; /* where to find values in incoming vertices */
+};
struct lp_build_interp_soa_context
}
}
+ lp_delete_setup_variants(llvmpipe);
+
align_free( llvmpipe );
}
memset(llvmpipe, 0, sizeof *llvmpipe);
make_empty_list(&llvmpipe->fs_variants_list);
+ make_empty_list(&llvmpipe->setup_variants_list);
llvmpipe->pipe.winsys = screen->winsys;
llvmpipe->pipe.screen = screen;
#include "lp_jit.h"
#include "lp_setup.h"
#include "lp_state_fs.h"
+#include "lp_state_setup.h"
struct llvmpipe_vbuf_render;
struct lp_vertex_shader;
struct lp_blend_state;
struct lp_setup_context;
+struct lp_setup_variant;
struct lp_velems_state;
struct llvmpipe_context {
/** Which vertex shader output slot contains point size */
int psize_slot;
- /** Fragment shader input interpolation info */
- unsigned num_inputs;
- struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
-
/** The tiling engine */
struct lp_setup_context *setup;
+ struct lp_setup_variant setup_variant;
/** The primitive drawing context */
struct draw_context *draw;
struct lp_fs_variant_list_item fs_variants_list;
unsigned nr_fs_variants;
+
+ struct lp_setup_variant_list_item setup_variants_list;
+ unsigned nr_setup_variants;
};
struct pipe_context;
struct pipe_fence_handle;
+struct pipe_resource;
void
llvmpipe_flush(struct pipe_context *pipe,
*/
#define LP_MAX_SHADER_VARIANTS 1024
+/**
+ * Max number of setup variants that will be kept around.
+ *
+ * These are determined by the combination of the fragment shader
+ * input signature and a small amount of rasterization state (eg
+ * flatshading). It is likely that many active fragment shaders will
+ * share the same setup variant.
+ */
+#define LP_MAX_SETUP_VARIANTS 64
+
#endif /* LP_LIMITS_H */
}
void
-lp_setup_set_fs_inputs( struct lp_setup_context *setup,
- const struct lp_shader_input *input,
- unsigned nr )
+lp_setup_set_setup_variant( struct lp_setup_context *setup,
+ const struct lp_setup_variant *variant)
{
- LP_DBG(DEBUG_SETUP, "%s %p %u\n", __FUNCTION__, (void *) input, nr);
-
- memcpy( setup->fs.input, input, nr * sizeof input[0] );
- setup->fs.nr_inputs = nr;
+ LP_DBG(DEBUG_SETUP, "%s\n", __FUNCTION__);
+
+ setup->setup.variant = variant;
}
void
setup->psize = lp->psize_slot;
assert(lp->dirty == 0);
+
+ assert(lp->setup_variant.key.size ==
+ setup->setup.variant->key.size);
+
+ assert(memcmp(&lp->setup_variant.key,
+ &setup->setup.variant->key,
+ setup->setup.variant->key.size) == 0);
}
if (update_scene)
struct draw_context;
struct vertex_info;
-enum lp_interp {
- LP_INTERP_CONSTANT,
- LP_INTERP_LINEAR,
- LP_INTERP_PERSPECTIVE,
- LP_INTERP_POSITION,
- LP_INTERP_FACING
-};
-
-
-/**
- * Describes how to compute the interpolation coefficients (a0, dadx, dady)
- * from the vertices passed into our triangle/line/point functions by the
- * draw module.
- *
- * Vertices are treated as an array of float[4] values, indexed by
- * src_index.
- */
-struct lp_shader_input {
- enum lp_interp interp; /* how to interpolate values */
- unsigned src_index; /* where to find values in incoming vertices */
- unsigned usage_mask; /* bitmask of TGSI_WRITEMASK_x flags */
-};
struct pipe_resource;
struct pipe_query;
struct lp_jit_context;
struct llvmpipe_query;
struct pipe_fence_handle;
-
+struct lp_setup_variant;
struct lp_setup_context *
lp_setup_create( struct pipe_context *pipe,
uint sprite);
void
-lp_setup_set_fs_inputs( struct lp_setup_context *setup,
- const struct lp_shader_input *interp,
- unsigned nr );
+lp_setup_set_setup_variant( struct lp_setup_context *setup,
+ const struct lp_setup_variant *variant );
void
lp_setup_set_fs_variant( struct lp_setup_context *setup,
+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2010, VMware.
- * 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, 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 VMWARE 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.
- *
- **************************************************************************/
-
-/*
- * Binning code for triangles
- */
-
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "lp_perf.h"
-#include "lp_setup_context.h"
-#include "lp_setup_coef.h"
-#include "lp_rast.h"
-#include "lp_state_fs.h"
-
-#if !defined(PIPE_ARCH_SSE)
-
-/**
- * Compute a0 for a constant-valued coefficient (GL_FLAT shading).
- */
-static void constant_coef( struct lp_rast_shader_inputs *inputs,
- unsigned slot,
- const float value,
- unsigned i )
-{
- inputs->a0[slot][i] = value;
- inputs->dadx[slot][i] = 0.0f;
- inputs->dady[slot][i] = 0.0f;
-}
-
-
-
-static void linear_coef( struct lp_rast_shader_inputs *inputs,
- const struct lp_tri_info *info,
- unsigned slot,
- unsigned vert_attr,
- unsigned i)
-{
- float a0 = info->v0[vert_attr][i];
- float a1 = info->v1[vert_attr][i];
- float a2 = info->v2[vert_attr][i];
-
- float da01 = a0 - a1;
- float da20 = a2 - a0;
- float dadx = (da01 * info->dy20_ooa - info->dy01_ooa * da20);
- float dady = (da20 * info->dx01_ooa - info->dx20_ooa * da01);
-
- inputs->dadx[slot][i] = dadx;
- inputs->dady[slot][i] = dady;
-
- /* calculate a0 as the value which would be sampled for the
- * fragment at (0,0), taking into account that we want to sample at
- * pixel centers, in other words (0.5, 0.5).
- *
- * this is neat but unfortunately not a good way to do things for
- * triangles with very large values of dadx or dady as it will
- * result in the subtraction and re-addition from a0 of a very
- * large number, which means we'll end up loosing a lot of the
- * fractional bits and precision from a0. the way to fix this is
- * to define a0 as the sample at a pixel center somewhere near vmin
- * instead - i'll switch to this later.
- */
- inputs->a0[slot][i] = a0 - (dadx * info->x0_center +
- dady * info->y0_center);
-}
-
-
-/**
- * Compute a0, dadx and dady for a perspective-corrected interpolant,
- * for a triangle.
- * We basically multiply the vertex value by 1/w before computing
- * the plane coefficients (a0, dadx, dady).
- * Later, when we compute the value at a particular fragment position we'll
- * divide the interpolated value by the interpolated W at that fragment.
- */
-static void perspective_coef( struct lp_rast_shader_inputs *inputs,
- const struct lp_tri_info *info,
- unsigned slot,
- unsigned vert_attr,
- unsigned i)
-{
- /* premultiply by 1/w (v[0][3] is always 1/w):
- */
- float a0 = info->v0[vert_attr][i] * info->v0[0][3];
- float a1 = info->v1[vert_attr][i] * info->v1[0][3];
- float a2 = info->v2[vert_attr][i] * info->v2[0][3];
- float da01 = a0 - a1;
- float da20 = a2 - a0;
- float dadx = da01 * info->dy20_ooa - info->dy01_ooa * da20;
- float dady = da20 * info->dx01_ooa - info->dx20_ooa * da01;
-
- inputs->dadx[slot][i] = dadx;
- inputs->dady[slot][i] = dady;
- inputs->a0[slot][i] = a0 - (dadx * info->x0_center +
- dady * info->y0_center);
-}
-
-
-/**
- * Special coefficient setup for gl_FragCoord.
- * X and Y are trivial
- * Z and W are copied from position_coef which should have already been computed.
- * We could do a bit less work if we'd examine gl_FragCoord's swizzle mask.
- */
-static void
-setup_fragcoord_coef(struct lp_rast_shader_inputs *inputs,
- const struct lp_tri_info *info,
- unsigned slot,
- unsigned usage_mask)
-{
- /*X*/
- if (usage_mask & TGSI_WRITEMASK_X) {
- inputs->a0[slot][0] = 0.0;
- inputs->dadx[slot][0] = 1.0;
- inputs->dady[slot][0] = 0.0;
- }
-
- /*Y*/
- if (usage_mask & TGSI_WRITEMASK_Y) {
- inputs->a0[slot][1] = 0.0;
- inputs->dadx[slot][1] = 0.0;
- inputs->dady[slot][1] = 1.0;
- }
-
- /*Z*/
- if (usage_mask & TGSI_WRITEMASK_Z) {
- linear_coef(inputs, info, slot, 0, 2);
- }
-
- /*W*/
- if (usage_mask & TGSI_WRITEMASK_W) {
- linear_coef(inputs, info, slot, 0, 3);
- }
-}
-
-
-/**
- * Setup the fragment input attribute with the front-facing value.
- * \param frontface is the triangle front facing?
- */
-static void setup_facing_coef( struct lp_rast_shader_inputs *inputs,
- unsigned slot,
- boolean frontface,
- unsigned usage_mask)
-{
- /* convert TRUE to 1.0 and FALSE to -1.0 */
- if (usage_mask & TGSI_WRITEMASK_X)
- constant_coef( inputs, slot, 2.0f * frontface - 1.0f, 0 );
-
- if (usage_mask & TGSI_WRITEMASK_Y)
- constant_coef( inputs, slot, 0.0f, 1 ); /* wasted */
-
- if (usage_mask & TGSI_WRITEMASK_Z)
- constant_coef( inputs, slot, 0.0f, 2 ); /* wasted */
-
- if (usage_mask & TGSI_WRITEMASK_W)
- constant_coef( inputs, slot, 0.0f, 3 ); /* wasted */
-}
-
-
-/**
- * Compute the tri->coef[] array dadx, dady, a0 values.
- */
-void lp_setup_tri_coef( struct lp_setup_context *setup,
- struct lp_rast_shader_inputs *inputs,
- const float (*v0)[4],
- const float (*v1)[4],
- const float (*v2)[4],
- boolean frontfacing)
-{
- unsigned fragcoord_usage_mask = TGSI_WRITEMASK_XYZ;
- unsigned slot;
- unsigned i;
- struct lp_tri_info info;
- float dx01 = v0[0][0] - v1[0][0];
- float dy01 = v0[0][1] - v1[0][1];
- float dx20 = v2[0][0] - v0[0][0];
- float dy20 = v2[0][1] - v0[0][1];
- float oneoverarea = 1.0f / (dx01 * dy20 - dx20 * dy01);
-
- info.v0 = v0;
- info.v1 = v1;
- info.v2 = v2;
- info.frontfacing = frontfacing;
- info.x0_center = v0[0][0] - setup->pixel_offset;
- info.y0_center = v0[0][1] - setup->pixel_offset;
- info.dx01_ooa = dx01 * oneoverarea;
- info.dx20_ooa = dx20 * oneoverarea;
- info.dy01_ooa = dy01 * oneoverarea;
- info.dy20_ooa = dy20 * oneoverarea;
-
-
- /* setup interpolation for all the remaining attributes:
- */
- for (slot = 0; slot < setup->fs.nr_inputs; slot++) {
- unsigned vert_attr = setup->fs.input[slot].src_index;
- unsigned usage_mask = setup->fs.input[slot].usage_mask;
-
- switch (setup->fs.input[slot].interp) {
- case LP_INTERP_CONSTANT:
- if (setup->flatshade_first) {
- for (i = 0; i < NUM_CHANNELS; i++)
- if (usage_mask & (1 << i))
- constant_coef(inputs, slot+1, info.v0[vert_attr][i], i);
- }
- else {
- for (i = 0; i < NUM_CHANNELS; i++)
- if (usage_mask & (1 << i))
- constant_coef(inputs, slot+1, info.v2[vert_attr][i], i);
- }
- break;
-
- case LP_INTERP_LINEAR:
- for (i = 0; i < NUM_CHANNELS; i++)
- if (usage_mask & (1 << i))
- linear_coef(inputs, &info, slot+1, vert_attr, i);
- break;
-
- case LP_INTERP_PERSPECTIVE:
- for (i = 0; i < NUM_CHANNELS; i++)
- if (usage_mask & (1 << i))
- perspective_coef(inputs, &info, slot+1, vert_attr, i);
- fragcoord_usage_mask |= TGSI_WRITEMASK_W;
- break;
-
- case LP_INTERP_POSITION:
- /*
- * The generated pixel interpolators will pick up the coeffs from
- * slot 0, so all need to ensure that the usage mask is covers all
- * usages.
- */
- fragcoord_usage_mask |= usage_mask;
- break;
-
- case LP_INTERP_FACING:
- setup_facing_coef(inputs, slot+1, info.frontfacing, usage_mask);
- break;
-
- default:
- assert(0);
- }
- }
-
- /* The internal position input is in slot zero:
- */
- setup_fragcoord_coef(inputs, &info, 0, fragcoord_usage_mask);
-}
-
-#else
-extern void lp_setup_coef_dummy(void);
-void lp_setup_coef_dummy(void)
-{
-}
-
-#endif
+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2010 VMware, Inc.
- * 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, 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 VMWARE 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.
- *
- **************************************************************************/
-
-
-/**
- * The setup code is concerned with point/line/triangle setup and
- * putting commands/data into the bins.
- */
-
-
-#ifndef LP_SETUP_COEF_H
-#define LP_SETUP_COEF_H
-
-
-struct lp_tri_info {
-
- float x0_center;
- float y0_center;
-
- /* turn these into an aligned float[4] */
- float dy01_ooa;
- float dy20_ooa;
- float dx01_ooa;
- float dx20_ooa;
-
- const float (*v0)[4];
- const float (*v1)[4];
- const float (*v2)[4];
-
- boolean frontfacing; /* remove eventually */
-};
-
-void lp_setup_tri_coef( struct lp_setup_context *setup,
- struct lp_rast_shader_inputs *inputs,
- const float (*v0)[4],
- const float (*v1)[4],
- const float (*v2)[4],
- boolean frontfacing);
-
-#endif
+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2010 VMware.
- * 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, 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 VMWARE 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.
- *
- **************************************************************************/
-
-/*
- * Binning code for triangles
- */
-
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "lp_perf.h"
-#include "lp_setup_context.h"
-#include "lp_setup_coef.h"
-#include "lp_rast.h"
-
-#if defined(PIPE_ARCH_SSE)
-#include <emmintrin.h>
-
-
-static void constant_coef4( struct lp_rast_shader_inputs *inputs,
- const struct lp_tri_info *info,
- unsigned slot,
- const float *attr)
-{
- *(__m128 *)inputs->a0[slot] = *(__m128 *)attr;
- *(__m128 *)inputs->dadx[slot] = _mm_set1_ps(0.0);
- *(__m128 *)inputs->dady[slot] = _mm_set1_ps(0.0);
-}
-
-
-
-/**
- * Setup the fragment input attribute with the front-facing value.
- * \param frontface is the triangle front facing?
- */
-static void setup_facing_coef( struct lp_rast_shader_inputs *inputs,
- const struct lp_tri_info *info,
- unsigned slot )
-{
- /* XXX: just pass frontface directly to the shader, don't bother
- * treating it as an input.
- */
- __m128 a0 = _mm_setr_ps(info->frontfacing ? 1.0 : -1.0,
- 0, 0, 0);
-
- *(__m128 *)inputs->a0[slot] = a0;
- *(__m128 *)inputs->dadx[slot] = _mm_set1_ps(0.0);
- *(__m128 *)inputs->dady[slot] = _mm_set1_ps(0.0);
-}
-
-
-
-static void calc_coef4( struct lp_rast_shader_inputs *inputs,
- const struct lp_tri_info *info,
- unsigned slot,
- __m128 a0,
- __m128 a1,
- __m128 a2)
-{
- __m128 da01 = _mm_sub_ps(a0, a1);
- __m128 da20 = _mm_sub_ps(a2, a0);
-
- __m128 da01_dy20_ooa = _mm_mul_ps(da01, _mm_set1_ps(info->dy20_ooa));
- __m128 da20_dy01_ooa = _mm_mul_ps(da20, _mm_set1_ps(info->dy01_ooa));
- __m128 dadx = _mm_sub_ps(da01_dy20_ooa, da20_dy01_ooa);
-
- __m128 da01_dx20_ooa = _mm_mul_ps(da01, _mm_set1_ps(info->dx20_ooa));
- __m128 da20_dx01_ooa = _mm_mul_ps(da20, _mm_set1_ps(info->dx01_ooa));
- __m128 dady = _mm_sub_ps(da20_dx01_ooa, da01_dx20_ooa);
-
- __m128 dadx_x0 = _mm_mul_ps(dadx, _mm_set1_ps(info->x0_center));
- __m128 dady_y0 = _mm_mul_ps(dady, _mm_set1_ps(info->y0_center));
- __m128 attr_v0 = _mm_add_ps(dadx_x0, dady_y0);
- __m128 attr_0 = _mm_sub_ps(a0, attr_v0);
-
- *(__m128 *)inputs->a0[slot] = attr_0;
- *(__m128 *)inputs->dadx[slot] = dadx;
- *(__m128 *)inputs->dady[slot] = dady;
-}
-
-
-static void linear_coef( struct lp_rast_shader_inputs *inputs,
- const struct lp_tri_info *info,
- unsigned slot,
- unsigned vert_attr)
-{
- __m128 a0 = *(const __m128 *)info->v0[vert_attr];
- __m128 a1 = *(const __m128 *)info->v1[vert_attr];
- __m128 a2 = *(const __m128 *)info->v2[vert_attr];
-
- calc_coef4(inputs, info, slot, a0, a1, a2);
-}
-
-
-
-/**
- * Compute a0, dadx and dady for a perspective-corrected interpolant,
- * for a triangle.
- * We basically multiply the vertex value by 1/w before computing
- * the plane coefficients (a0, dadx, dady).
- * Later, when we compute the value at a particular fragment position we'll
- * divide the interpolated value by the interpolated W at that fragment.
- */
-static void perspective_coef( struct lp_rast_shader_inputs *inputs,
- const struct lp_tri_info *info,
- unsigned slot,
- unsigned vert_attr)
-{
- /* premultiply by 1/w (v[0][3] is always 1/w):
- */
- __m128 a0 = *(const __m128 *)info->v0[vert_attr];
- __m128 a1 = *(const __m128 *)info->v1[vert_attr];
- __m128 a2 = *(const __m128 *)info->v2[vert_attr];
-
- __m128 a0_oow = _mm_mul_ps(a0, _mm_set1_ps(info->v0[0][3]));
- __m128 a1_oow = _mm_mul_ps(a1, _mm_set1_ps(info->v1[0][3]));
- __m128 a2_oow = _mm_mul_ps(a2, _mm_set1_ps(info->v2[0][3]));
-
- calc_coef4(inputs, info, slot, a0_oow, a1_oow, a2_oow);
-}
-
-
-
-
-
-/**
- * Compute the inputs-> dadx, dady, a0 values.
- */
-void lp_setup_tri_coef( struct lp_setup_context *setup,
- struct lp_rast_shader_inputs *inputs,
- const float (*v0)[4],
- const float (*v1)[4],
- const float (*v2)[4],
- boolean frontfacing)
-{
- unsigned slot;
- struct lp_tri_info info;
- float dx01 = v0[0][0] - v1[0][0];
- float dy01 = v0[0][1] - v1[0][1];
- float dx20 = v2[0][0] - v0[0][0];
- float dy20 = v2[0][1] - v0[0][1];
- float oneoverarea = 1.0f / (dx01 * dy20 - dx20 * dy01);
-
- info.v0 = v0;
- info.v1 = v1;
- info.v2 = v2;
- info.frontfacing = frontfacing;
- info.x0_center = v0[0][0] - setup->pixel_offset;
- info.y0_center = v0[0][1] - setup->pixel_offset;
- info.dx01_ooa = dx01 * oneoverarea;
- info.dx20_ooa = dx20 * oneoverarea;
- info.dy01_ooa = dy01 * oneoverarea;
- info.dy20_ooa = dy20 * oneoverarea;
-
-
- /* The internal position input is in slot zero:
- */
- linear_coef(inputs, &info, 0, 0);
-
- /* setup interpolation for all the remaining attributes:
- */
- for (slot = 0; slot < setup->fs.nr_inputs; slot++) {
- unsigned vert_attr = setup->fs.input[slot].src_index;
-
- switch (setup->fs.input[slot].interp) {
- case LP_INTERP_CONSTANT:
- if (setup->flatshade_first) {
- constant_coef4(inputs, &info, slot+1, info.v0[vert_attr]);
- }
- else {
- constant_coef4(inputs, &info, slot+1, info.v2[vert_attr]);
- }
- break;
-
- case LP_INTERP_LINEAR:
- linear_coef(inputs, &info, slot+1, vert_attr);
- break;
-
- case LP_INTERP_PERSPECTIVE:
- perspective_coef(inputs, &info, slot+1, vert_attr);
- break;
-
- case LP_INTERP_POSITION:
- /*
- * The generated pixel interpolators will pick up the coeffs from
- * slot 0.
- */
- break;
-
- case LP_INTERP_FACING:
- setup_facing_coef(inputs, &info, slot+1);
- break;
-
- default:
- assert(0);
- }
- }
-}
-
-#else
-extern void lp_setup_coef_dummy(void);
-void lp_setup_coef_dummy(void)
-{
-}
-#endif
#include "lp_rast.h"
#include "lp_tile_soa.h" /* for TILE_SIZE */
#include "lp_scene.h"
+#include "lp_bld_interp.h" /* for struct lp_shader_input */
#include "draw/draw_vbuf.h"
#include "util/u_rect.h"
#define LP_SETUP_NEW_SCISSOR 0x08
+struct lp_setup_variant;
+
/** Max number of scenes */
#define MAX_SCENES 2
} state;
struct {
- struct lp_shader_input input[PIPE_MAX_ATTRIBS];
- unsigned nr_inputs;
-
const struct lp_rast_state *stored; /**< what's in the scene */
struct lp_rast_state current; /**< currently set state */
struct pipe_resource *current_tex[PIPE_MAX_SAMPLERS];
} blend_color;
+ struct {
+ const struct lp_setup_variant *variant;
+ } setup;
+
unsigned dirty; /**< bitmask of LP_SETUP_NEW_x bits */
void (*point)( struct lp_setup_context *,
struct lp_rast_triangle *
lp_setup_alloc_triangle(struct lp_scene *scene,
- unsigned nr_inputs,
+ unsigned num_inputs,
unsigned nr_planes,
unsigned *tri_size);
#include "lp_setup_context.h"
#include "lp_rast.h"
#include "lp_state_fs.h"
+#include "lp_state_setup.h"
#define NUM_CHANNELS 4
struct lp_rast_triangle *tri,
struct lp_line_info *info)
{
+ const struct lp_setup_variant_key *key = &setup->setup.variant->key;
unsigned fragcoord_usage_mask = TGSI_WRITEMASK_XYZ;
unsigned slot;
/* setup interpolation for all the remaining attributes:
*/
- for (slot = 0; slot < setup->fs.nr_inputs; slot++) {
- unsigned vert_attr = setup->fs.input[slot].src_index;
- unsigned usage_mask = setup->fs.input[slot].usage_mask;
+ for (slot = 0; slot < key->num_inputs; slot++) {
+ unsigned vert_attr = key->inputs[slot].src_index;
+ unsigned usage_mask = key->inputs[slot].usage_mask;
unsigned i;
- switch (setup->fs.input[slot].interp) {
+ switch (key->inputs[slot].interp) {
case LP_INTERP_CONSTANT:
- if (setup->flatshade_first) {
+ if (key->flatshade_first) {
for (i = 0; i < NUM_CHANNELS; i++)
if (usage_mask & (1 << i))
constant_coef(setup, tri, slot+1, info->v1[vert_attr][i], i);
const float (*v1)[4],
const float (*v2)[4])
{
+ const struct lp_setup_variant_key *key = &setup->setup.variant->key;
uint i;
debug_printf("llvmpipe line\n");
- for (i = 0; i < 1 + setup->fs.nr_inputs; i++) {
+ for (i = 0; i < 1 + key->num_inputs; i++) {
debug_printf(" v1[%d]: %f %f %f %f\n", i,
v1[i][0], v1[i][1], v1[i][2], v1[i][3]);
}
- for (i = 0; i < 1 + setup->fs.nr_inputs; i++) {
+ for (i = 0; i < 1 + key->num_inputs; i++) {
debug_printf(" v2[%d]: %f %f %f %f\n", i,
v2[i][0], v2[i][1], v2[i][2], v2[i][3]);
}
const float (*v2)[4])
{
struct lp_scene *scene = setup->scene;
+ const struct lp_setup_variant_key *key = &setup->setup.variant->key;
struct lp_rast_triangle *line;
struct lp_line_info info;
float width = MAX2(1.0, setup->line_width);
u_rect_find_intersection(&setup->draw_region, &bbox);
line = lp_setup_alloc_triangle(scene,
- setup->fs.nr_inputs,
+ key->num_inputs,
nr_planes,
&tri_bytes);
if (!line)
#include "lp_setup_context.h"
#include "lp_rast.h"
#include "lp_state_fs.h"
+#include "lp_state_setup.h"
#include "tgsi/tgsi_scan.h"
#define NUM_CHANNELS 4
struct lp_rast_triangle *point,
const struct point_info *info)
{
+ const struct lp_setup_variant_key *key = &setup->setup.variant->key;
unsigned fragcoord_usage_mask = TGSI_WRITEMASK_XYZ;
unsigned slot;
/* setup interpolation for all the remaining attributes:
*/
- for (slot = 0; slot < setup->fs.nr_inputs; slot++) {
- unsigned vert_attr = setup->fs.input[slot].src_index;
- unsigned usage_mask = setup->fs.input[slot].usage_mask;
+ for (slot = 0; slot < key->num_inputs; slot++) {
+ unsigned vert_attr = key->inputs[slot].src_index;
+ unsigned usage_mask = key->inputs[slot].usage_mask;
unsigned i;
- switch (setup->fs.input[slot].interp) {
+ switch (key->inputs[slot].interp) {
case LP_INTERP_POSITION:
/*
* The generated pixel interpolators will pick up the coeffs from
const float (*v0)[4] )
{
/* x/y positions in fixed point */
+ const struct lp_setup_variant_key *key = &setup->setup.variant->key;
const int sizeAttr = setup->psize;
const float size
= (setup->point_size_per_vertex && sizeAttr > 0) ? v0[sizeAttr][0]
u_rect_find_intersection(&setup->draw_region, &bbox);
point = lp_setup_alloc_triangle(scene,
- setup->fs.nr_inputs,
+ key->num_inputs,
nr_planes,
&bytes);
if (!point)
#include "util/u_rect.h"
#include "lp_perf.h"
#include "lp_setup_context.h"
-#include "lp_setup_coef.h"
#include "lp_rast.h"
#include "lp_state_fs.h"
+#include "lp_state_setup.h"
#define NUM_CHANNELS 4
* immediately after it.
* The memory is allocated from the per-scene pool, not per-tile.
* \param tri_size returns number of bytes allocated
- * \param nr_inputs number of fragment shader inputs
+ * \param num_inputs number of fragment shader inputs
* \return pointer to triangle space
*/
struct lp_rast_triangle *
lp_setup_alloc_triangle(struct lp_scene *scene,
- unsigned nr_inputs,
+ unsigned num_inputs,
unsigned nr_planes,
unsigned *tri_size)
{
- unsigned input_array_sz = NUM_CHANNELS * (nr_inputs + 1) * sizeof(float);
+ unsigned input_array_sz = NUM_CHANNELS * (num_inputs + 1) * sizeof(float);
struct lp_rast_triangle *tri;
unsigned tri_bytes, bytes;
char *inputs;
const char *name,
const float (*v)[4])
{
+ const struct lp_setup_variant_key *key = &setup->setup.variant->key;
int i, j;
debug_printf(" wpos (%s[0]) xyzw %f %f %f %f\n",
name,
v[0][0], v[0][1], v[0][2], v[0][3]);
- for (i = 0; i < setup->fs.nr_inputs; i++) {
- const float *in = v[setup->fs.input[i].src_index];
+ for (i = 0; i < key->num_inputs; i++) {
+ const float *in = v[key->inputs[i].src_index];
debug_printf(" in[%d] (%s[%d]) %s%s%s%s ",
i,
- name, setup->fs.input[i].src_index,
- (setup->fs.input[i].usage_mask & 0x1) ? "x" : " ",
- (setup->fs.input[i].usage_mask & 0x2) ? "y" : " ",
- (setup->fs.input[i].usage_mask & 0x4) ? "z" : " ",
- (setup->fs.input[i].usage_mask & 0x8) ? "w" : " ");
+ name, key->inputs[i].src_index,
+ (key->inputs[i].usage_mask & 0x1) ? "x" : " ",
+ (key->inputs[i].usage_mask & 0x2) ? "y" : " ",
+ (key->inputs[i].usage_mask & 0x4) ? "z" : " ",
+ (key->inputs[i].usage_mask & 0x8) ? "w" : " ");
for (j = 0; j < 4; j++)
- if (setup->fs.input[i].usage_mask & (1<<j))
+ if (key->inputs[i].usage_mask & (1<<j))
debug_printf("%.5f ", in[j]);
debug_printf("\n");
boolean frontfacing )
{
struct lp_scene *scene = setup->scene;
+ const struct lp_setup_variant_key *key = &setup->setup.variant->key;
struct lp_rast_triangle *tri;
int x[3];
int y[3];
u_rect_find_intersection(&setup->draw_region, &bbox);
tri = lp_setup_alloc_triangle(scene,
- setup->fs.nr_inputs,
+ key->num_inputs,
nr_planes,
&tri_bytes);
if (!tri)
/* Setup parameter interpolants:
*/
- lp_setup_tri_coef( setup, &tri->inputs, v0, v1, v2, frontfacing );
+ setup->setup.variant->jit_function( v0,
+ v1,
+ v2,
+ frontfacing,
+ tri->inputs.a0,
+ tri->inputs.dadx,
+ tri->inputs.dady,
+ &setup->setup.variant->key );
tri->inputs.facing = frontfacing ? 1.0F : -1.0F;
tri->inputs.disable = FALSE;
tri->inputs.opaque = setup->fs.current.variant->opaque;
tri->inputs.state = setup->fs.stored;
+ if (0)
+ lp_dump_setup_coef(&setup->setup.variant->key,
+ (const float (*)[4])tri->inputs.a0,
+ (const float (*)[4])tri->inputs.dadx,
+ (const float (*)[4])tri->inputs.dady);
for (i = 0; i < 3; i++) {
struct lp_rast_plane *plane = &tri->plane[i];
void
llvmpipe_update_fs(struct llvmpipe_context *lp);
+void
+llvmpipe_update_setup(struct llvmpipe_context *lp);
+
void
llvmpipe_update_derived(struct llvmpipe_context *llvmpipe);
{
const struct lp_fragment_shader *lpfs = llvmpipe->fs;
struct vertex_info *vinfo = &llvmpipe->vertex_info;
- struct lp_shader_input *inputs = llvmpipe->inputs;
unsigned vs_index;
uint i;
/*
- * Match FS inputs against VS outputs, emitting the necessary attributes.
+ * Match FS inputs against VS outputs, emitting the necessary
+ * attributes. Could cache these structs and look them up with a
+ * combination of fragment shader, vertex shader ids.
*/
vinfo->num_attribs = 0;
vs_index = draw_find_shader_output(llvmpipe->draw,
lpfs->info.input_semantic_name[i],
lpfs->info.input_semantic_index[i]);
- if (vs_index < 0) {
- /*
- * This can happen with sprite coordinates - the vertex
- * shader doesn't need to provide an output as we generate
- * them internally. However, lets keep pretending that there
- * is something there to not confuse other code.
- */
- vs_index = 0;
- }
-
- /* This can be pre-computed, except for flatshade:
- */
- inputs[i].usage_mask = lpfs->info.input_usage_mask[i];
-
- switch (lpfs->info.input_interpolate[i]) {
- case TGSI_INTERPOLATE_CONSTANT:
- inputs[i].interp = LP_INTERP_CONSTANT;
- break;
- case TGSI_INTERPOLATE_LINEAR:
- inputs[i].interp = LP_INTERP_LINEAR;
- break;
- case TGSI_INTERPOLATE_PERSPECTIVE:
- inputs[i].interp = LP_INTERP_PERSPECTIVE;
- break;
- default:
- assert(0);
- break;
- }
-
- switch (lpfs->info.input_semantic_name[i]) {
- case TGSI_SEMANTIC_FACE:
- inputs[i].interp = LP_INTERP_FACING;
- break;
- case TGSI_SEMANTIC_POSITION:
- /* Position was already emitted above
- */
- inputs[i].interp = LP_INTERP_POSITION;
- inputs[i].src_index = 0;
- continue;
- case TGSI_SEMANTIC_COLOR:
- /* Colors are linearly inputs[i].interpolated in the fragment shader
- * even when flatshading is active. This just tells the
- * setup module to use coefficients with ddx==0 and
- * ddy==0.
- */
- if (llvmpipe->rasterizer->flatshade)
- inputs[i].interp = LP_INTERP_CONSTANT;
- break;
-
- default:
- break;
- }
/*
* Emit the requested fs attribute for all but position.
*/
-
- inputs[i].src_index = vinfo->num_attribs;
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, vs_index);
}
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT, vs_index);
}
- llvmpipe->num_inputs = lpfs->info.num_inputs;
-
draw_compute_vertex_size(vinfo);
-
lp_setup_set_vertex_info(llvmpipe->setup, vinfo);
- lp_setup_set_fs_inputs(llvmpipe->setup,
- inputs,
- lpfs->info.num_inputs);
}
LP_NEW_QUERY))
llvmpipe_update_fs( llvmpipe );
+ if (llvmpipe->dirty & (LP_NEW_FS |
+ LP_NEW_RASTERIZER))
+ llvmpipe_update_setup( llvmpipe );
+
if (llvmpipe->dirty & LP_NEW_BLEND_COLOR)
lp_setup_set_blend_color(llvmpipe->setup,
&llvmpipe->blend_color);
* \param partial_mask if 1, do mask_input testing
*/
static void
-generate_fs(struct llvmpipe_context *lp,
- struct lp_fragment_shader *shader,
+generate_fs(struct lp_fragment_shader *shader,
const struct lp_fragment_shader_variant_key *key,
LLVMBuilderRef builder,
struct lp_type type,
* 2x2 pixels.
*/
static void
-generate_fragment(struct llvmpipe_context *lp,
+generate_fragment(struct llvmpipe_screen *screen,
struct lp_fragment_shader *shader,
struct lp_fragment_shader_variant *variant,
unsigned partial_mask)
{
- struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
const struct lp_fragment_shader_variant_key *key = &variant->key;
+ struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
char func_name[256];
struct lp_type fs_type;
struct lp_type blend_type;
unsigned chan;
unsigned cbuf;
+ /* Adjust color input interpolation according to flatshade state:
+ */
+ memcpy(inputs, shader->inputs, shader->info.num_inputs * sizeof inputs[0]);
+ for (i = 0; i < shader->info.num_inputs; i++) {
+ if (inputs[i].interp == LP_INTERP_COLOR) {
+ if (key->flatshade)
+ inputs[i].interp = LP_INTERP_CONSTANT;
+ else
+ inputs[i].interp = LP_INTERP_LINEAR;
+ }
+ }
+
/* TODO: actually pick these based on the fs and color buffer
* characteristics. */
variant->function[partial_mask] = function;
-
/* XXX: need to propagate noalias down into color param now we are
* passing a pointer-to-pointer?
*/
* already included in the shader key.
*/
lp_build_interp_soa_init(&interp,
- lp->num_inputs,
- lp->inputs,
+ shader->info.num_inputs,
+ inputs,
builder, fs_type,
a0_ptr, dadx_ptr, dady_ptr,
x, y);
depth_ptr_i = LLVMBuildGEP(builder, depth_ptr, &index, 1, "");
- generate_fs(lp, shader, key,
+ generate_fs(shader, key,
builder,
fs_type,
context_ptr,
}
static struct lp_fragment_shader_variant *
-generate_variant(struct llvmpipe_context *lp,
+generate_variant(struct llvmpipe_screen *screen,
struct lp_fragment_shader *shader,
const struct lp_fragment_shader_variant_key *key)
{
lp_debug_fs_variant(variant);
}
- generate_fragment(lp, shader, variant, RAST_EDGE_TEST);
+ generate_fragment(screen, shader, variant, RAST_EDGE_TEST);
if (variant->opaque) {
/* Specialized shader, which doesn't need to read the color buffer. */
- generate_fragment(lp, shader, variant, RAST_WHOLE);
+ generate_fragment(screen, shader, variant, RAST_WHOLE);
} else {
variant->jit_function[RAST_WHOLE] = variant->jit_function[RAST_EDGE_TEST];
}
{
struct lp_fragment_shader *shader;
int nr_samplers;
+ int i;
shader = CALLOC_STRUCT(lp_fragment_shader);
if (!shader)
shader->variant_key_size = Offset(struct lp_fragment_shader_variant_key,
sampler[nr_samplers]);
+ for (i = 0; i < shader->info.num_inputs; i++) {
+ shader->inputs[i].usage_mask = shader->info.input_usage_mask[i];
+
+ switch (shader->info.input_interpolate[i]) {
+ case TGSI_INTERPOLATE_CONSTANT:
+ shader->inputs[i].interp = LP_INTERP_CONSTANT;
+ break;
+ case TGSI_INTERPOLATE_LINEAR:
+ shader->inputs[i].interp = LP_INTERP_LINEAR;
+ break;
+ case TGSI_INTERPOLATE_PERSPECTIVE:
+ shader->inputs[i].interp = LP_INTERP_PERSPECTIVE;
+ break;
+ default:
+ assert(0);
+ break;
+ }
+
+ switch (shader->info.input_semantic_name[i]) {
+ case TGSI_SEMANTIC_COLOR:
+ /* Colors may be either linearly or constant interpolated in
+ * the fragment shader, but that information isn't available
+ * here. Mark color inputs and fix them up later.
+ */
+ shader->inputs[i].interp = LP_INTERP_COLOR;
+ break;
+ case TGSI_SEMANTIC_FACE:
+ shader->inputs[i].interp = LP_INTERP_FACING;
+ break;
+ case TGSI_SEMANTIC_POSITION:
+ /* Position was already emitted above
+ */
+ shader->inputs[i].interp = LP_INTERP_POSITION;
+ shader->inputs[i].src_index = 0;
+ continue;
+ }
+
+ shader->inputs[i].src_index = i+1;
+ }
+
if (LP_DEBUG & DEBUG_TGSI) {
unsigned attrib;
debug_printf("llvmpipe: Create fragment shader #%u %p:\n", shader->no, (void *) shader);
void
llvmpipe_update_fs(struct llvmpipe_context *lp)
{
+ struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
struct lp_fragment_shader *shader = lp->fs;
struct lp_fragment_shader_variant_key key;
struct lp_fragment_shader_variant *variant = NULL;
}
t0 = os_time_get();
- variant = generate_variant(lp, shader, &key);
+ variant = generate_variant(screen, shader, &key);
t1 = os_time_get();
dt = t1 - t0;
+
+
+
+
void
llvmpipe_init_fs_funcs(struct llvmpipe_context *llvmpipe)
{
#include "pipe/p_state.h"
#include "tgsi/tgsi_scan.h" /* for tgsi_shader_info */
#include "gallivm/lp_bld_sample.h" /* for struct lp_sampler_static_state */
+#include "lp_bld_interp.h" /* for struct lp_shader_input */
struct tgsi_token;
unsigned no;
unsigned variants_created;
unsigned variants_cached;
+
+ /** Fragment shader input interpolation info */
+ struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
};
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2010 VMware.
+ * 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, 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 VMWARE 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 "util/u_math.h"
+#include "util/u_memory.h"
+#include "util/u_simple_list.h"
+#include "os/os_time.h"
+#include "gallivm/lp_bld_debug.h"
+#include "gallivm/lp_bld_init.h"
+#include "gallivm/lp_bld_intr.h"
+#include <llvm-c/Analysis.h> /* for LLVMVerifyFunction */
+
+#include "lp_perf.h"
+#include "lp_debug.h"
+#include "lp_flush.h"
+#include "lp_screen.h"
+#include "lp_context.h"
+#include "lp_setup_context.h"
+#include "lp_rast.h"
+#include "lp_state.h"
+#include "lp_state_fs.h"
+#include "lp_state_setup.h"
+
+
+
+/* currently organized to interpolate full float[4] attributes even
+ * when some elements are unused. Later, can pack vertex data more
+ * closely.
+ */
+
+
+struct lp_setup_args
+{
+ /* Function arguments:
+ */
+ LLVMValueRef v0;
+ LLVMValueRef v1;
+ LLVMValueRef v2;
+ LLVMValueRef facing; /* boolean */
+ LLVMValueRef a0;
+ LLVMValueRef dadx;
+ LLVMValueRef dady;
+
+ /* Derived:
+ */
+ LLVMValueRef x0_center;
+ LLVMValueRef y0_center;
+ LLVMValueRef dy20_ooa;
+ LLVMValueRef dy01_ooa;
+ LLVMValueRef dx20_ooa;
+ LLVMValueRef dx01_ooa;
+};
+
+static LLVMTypeRef type4f(void)
+{
+ return LLVMVectorType(LLVMFloatType(), 4);
+}
+
+
+/* Equivalent of _mm_setr_ps(a,b,c,d)
+ */
+static LLVMValueRef vec4f(LLVMBuilderRef bld,
+ LLVMValueRef a, LLVMValueRef b, LLVMValueRef c, LLVMValueRef d,
+ const char *name)
+{
+ LLVMValueRef i0 = LLVMConstInt(LLVMInt32Type(), 0, 0);
+ LLVMValueRef i1 = LLVMConstInt(LLVMInt32Type(), 1, 0);
+ LLVMValueRef i2 = LLVMConstInt(LLVMInt32Type(), 2, 0);
+ LLVMValueRef i3 = LLVMConstInt(LLVMInt32Type(), 3, 0);
+
+ LLVMValueRef res = LLVMGetUndef(type4f());
+
+ res = LLVMBuildInsertElement(bld, res, a, i0, "");
+ res = LLVMBuildInsertElement(bld, res, b, i1, "");
+ res = LLVMBuildInsertElement(bld, res, c, i2, "");
+ res = LLVMBuildInsertElement(bld, res, d, i3, name);
+
+ return res;
+}
+
+/* Equivalent of _mm_set1_ps(a)
+ */
+static LLVMValueRef vec4f_from_scalar(LLVMBuilderRef bld,
+ LLVMValueRef a,
+ const char *name)
+{
+ LLVMValueRef res = LLVMGetUndef(type4f());
+ int i;
+
+ for(i = 0; i < 4; ++i) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+ res = LLVMBuildInsertElement(bld, res, a, index, i == 3 ? name : "");
+ }
+
+ return res;
+}
+
+static void
+store_coef(LLVMBuilderRef builder,
+ struct lp_setup_args *args,
+ unsigned slot,
+ LLVMValueRef a0,
+ LLVMValueRef dadx,
+ LLVMValueRef dady)
+{
+ LLVMValueRef idx = LLVMConstInt(LLVMInt32Type(), slot, 0);
+
+ LLVMBuildStore(builder,
+ a0,
+ LLVMBuildGEP(builder, args->a0, &idx, 1, ""));
+
+ LLVMBuildStore(builder,
+ dadx,
+ LLVMBuildGEP(builder, args->dadx, &idx, 1, ""));
+
+ LLVMBuildStore(builder,
+ dady,
+ LLVMBuildGEP(builder, args->dady, &idx, 1, ""));
+}
+
+
+
+static void
+emit_constant_coef4( LLVMBuilderRef builder,
+ struct lp_setup_args *args,
+ unsigned slot,
+ LLVMValueRef vert,
+ unsigned attr)
+{
+ LLVMValueRef zero = LLVMConstReal(LLVMFloatType(), 0.0);
+ LLVMValueRef zerovec = vec4f_from_scalar(builder, zero, "zero");
+ LLVMValueRef idx = LLVMConstInt(LLVMInt32Type(), attr, 0);
+ LLVMValueRef attr_ptr = LLVMBuildGEP(builder, vert, &idx, 1, "attr_ptr");
+ LLVMValueRef vert_attr = LLVMBuildLoad(builder, attr_ptr, "vert_attr");
+
+ store_coef(builder, args, slot, vert_attr, zerovec, zerovec);
+}
+
+
+
+/**
+ * Setup the fragment input attribute with the front-facing value.
+ * \param frontface is the triangle front facing?
+ */
+static void
+emit_facing_coef( LLVMBuilderRef builder,
+ struct lp_setup_args *args,
+ unsigned slot )
+{
+ LLVMValueRef a0_0 = args->facing;
+ LLVMValueRef zero = LLVMConstReal(LLVMFloatType(), 0.0);
+ LLVMValueRef a0 = vec4f(builder, a0_0, zero, zero, zero, "facing");
+ LLVMValueRef zerovec = vec4f_from_scalar(builder, zero, "zero");
+
+ store_coef(builder, args, slot, a0, zerovec, zerovec);
+}
+
+
+static LLVMValueRef
+vert_attrib(LLVMBuilderRef b,
+ LLVMValueRef vert,
+ int attr,
+ int elem,
+ const char *name)
+{
+ LLVMValueRef idx[2];
+ idx[0] = LLVMConstInt(LLVMInt32Type(), attr, 0);
+ idx[1] = LLVMConstInt(LLVMInt32Type(), elem, 0);
+ return LLVMBuildLoad(b, LLVMBuildGEP(b, vert, idx, 2, ""), name);
+}
+
+
+
+static void
+emit_coef4( LLVMBuilderRef b,
+ struct lp_setup_args *args,
+ unsigned slot,
+ LLVMValueRef a0,
+ LLVMValueRef a1,
+ LLVMValueRef a2)
+{
+ LLVMValueRef dy20_ooa = args->dy20_ooa;
+ LLVMValueRef dy01_ooa = args->dy01_ooa;
+ LLVMValueRef dx20_ooa = args->dx20_ooa;
+ LLVMValueRef dx01_ooa = args->dx01_ooa;
+ LLVMValueRef x0_center = args->x0_center;
+ LLVMValueRef y0_center = args->y0_center;
+
+ /* XXX: using fsub, fmul on vector types -- does this work??
+ */
+ LLVMValueRef da01 = LLVMBuildFSub(b, a0, a1, "da01");
+ LLVMValueRef da20 = LLVMBuildFSub(b, a2, a0, "da20");
+
+ /* Calculate dadx (vec4f)
+ */
+ LLVMValueRef da01_dy20_ooa = LLVMBuildFMul(b, da01, dy20_ooa, "da01_dy20_ooa");
+ LLVMValueRef da20_dy01_ooa = LLVMBuildFMul(b, da20, dy01_ooa, "da20_dy01_ooa");
+ LLVMValueRef dadx = LLVMBuildFSub(b, da01_dy20_ooa, da20_dy01_ooa, "dadx");
+
+ /* Calculate dady (vec4f)
+ */
+ LLVMValueRef da01_dx20_ooa = LLVMBuildFMul(b, da01, dx20_ooa, "da01_dx20_ooa");
+ LLVMValueRef da20_dx01_ooa = LLVMBuildFMul(b, da20, dx01_ooa, "da20_dx01_ooa");
+ LLVMValueRef dady = LLVMBuildFSub(b, da20_dx01_ooa, da01_dx20_ooa, "dady");
+
+ /* Calculate a0 - the attribute value at the origin
+ */
+ LLVMValueRef dadx_x0 = LLVMBuildFMul(b, dadx, x0_center, "dadx_x0");
+ LLVMValueRef dady_y0 = LLVMBuildFMul(b, dady, y0_center, "dady_y0");
+ LLVMValueRef attr_v0 = LLVMBuildFAdd(b, dadx_x0, dady_y0, "attr_v0");
+ LLVMValueRef attr_0 = LLVMBuildFSub(b, a0, attr_v0, "attr_0");
+
+ store_coef(b, args, slot, attr_0, dadx, dady);
+}
+
+
+static void
+emit_linear_coef( LLVMBuilderRef b,
+ struct lp_setup_args *args,
+ unsigned slot,
+ unsigned vert_attr)
+{
+ LLVMValueRef idx = LLVMConstInt(LLVMInt32Type(), vert_attr, 0);
+
+ LLVMValueRef a0 = LLVMBuildLoad(b, LLVMBuildGEP(b, args->v0, &idx, 1, ""), "v0a");
+ LLVMValueRef a1 = LLVMBuildLoad(b, LLVMBuildGEP(b, args->v1, &idx, 1, ""), "v1a");
+ LLVMValueRef a2 = LLVMBuildLoad(b, LLVMBuildGEP(b, args->v2, &idx, 1, ""), "v2a");
+
+ emit_coef4(b, args, slot, a0, a1, a2);
+}
+
+
+
+/**
+ * Compute a0, dadx and dady for a perspective-corrected interpolant,
+ * for a triangle.
+ * We basically multiply the vertex value by 1/w before computing
+ * the plane coefficients (a0, dadx, dady).
+ * Later, when we compute the value at a particular fragment position we'll
+ * divide the interpolated value by the interpolated W at that fragment.
+ */
+static void
+emit_perspective_coef( LLVMBuilderRef b,
+ struct lp_setup_args *args,
+ unsigned slot,
+ unsigned vert_attr)
+{
+ /* premultiply by 1/w (v[0][3] is always 1/w):
+ */
+ LLVMValueRef idx = LLVMConstInt(LLVMInt32Type(), vert_attr, 0);
+
+ LLVMValueRef v0a = LLVMBuildLoad(b, LLVMBuildGEP(b, args->v0, &idx, 1, ""), "v0a");
+ LLVMValueRef v1a = LLVMBuildLoad(b, LLVMBuildGEP(b, args->v1, &idx, 1, ""), "v1a");
+ LLVMValueRef v2a = LLVMBuildLoad(b, LLVMBuildGEP(b, args->v2, &idx, 1, ""), "v2a");
+
+ LLVMValueRef v0_oow = vec4f_from_scalar(b, vert_attrib(b, args->v0, 0, 3, ""), "v0_oow");
+ LLVMValueRef v1_oow = vec4f_from_scalar(b, vert_attrib(b, args->v1, 0, 3, ""), "v1_oow");
+ LLVMValueRef v2_oow = vec4f_from_scalar(b, vert_attrib(b, args->v2, 0, 3, ""), "v2_oow");
+
+ LLVMValueRef v0_oow_v0a = LLVMBuildFMul(b, v0a, v0_oow, "v0_oow_v0a");
+ LLVMValueRef v1_oow_v1a = LLVMBuildFMul(b, v1a, v1_oow, "v1_oow_v1a");
+ LLVMValueRef v2_oow_v2a = LLVMBuildFMul(b, v2a, v2_oow, "v2_oow_v2a");
+
+ emit_coef4(b, args, slot, v0_oow_v0a, v1_oow_v1a, v2_oow_v2a);
+}
+
+
+static void
+emit_position_coef( LLVMBuilderRef builder,
+ struct lp_setup_args *args,
+ int slot, int attrib )
+{
+ emit_linear_coef(builder, args, slot, attrib);
+}
+
+
+
+
+/**
+ * Compute the inputs-> dadx, dady, a0 values.
+ */
+static void
+emit_tri_coef( LLVMBuilderRef builder,
+ const struct lp_setup_variant_key *key,
+ struct lp_setup_args *args )
+{
+ unsigned slot;
+
+ /* The internal position input is in slot zero:
+ */
+ emit_position_coef(builder, args, 0, 0);
+
+ /* setup interpolation for all the remaining attributes:
+ */
+ for (slot = 0; slot < key->num_inputs; slot++) {
+ unsigned vert_attr = key->inputs[slot].src_index;
+
+ switch (key->inputs[slot].interp) {
+ case LP_INTERP_CONSTANT:
+ if (key->flatshade_first) {
+ emit_constant_coef4(builder, args, slot+1, args->v0, vert_attr);
+ }
+ else {
+ emit_constant_coef4(builder, args, slot+1, args->v2, vert_attr);
+ }
+ break;
+
+ case LP_INTERP_LINEAR:
+ emit_linear_coef(builder, args, slot+1, vert_attr);
+ break;
+
+ case LP_INTERP_PERSPECTIVE:
+ emit_perspective_coef(builder, args, slot+1, vert_attr);
+ break;
+
+ case LP_INTERP_POSITION:
+ /*
+ * The generated pixel interpolators will pick up the coeffs from
+ * slot 0.
+ */
+ break;
+
+ case LP_INTERP_FACING:
+ emit_facing_coef(builder, args, slot+1);
+ break;
+
+ default:
+ assert(0);
+ }
+ }
+}
+
+
+/* XXX: This is generic code, share with fs/vs codegen:
+ */
+static lp_jit_setup_triangle
+finalize_function(struct llvmpipe_screen *screen,
+ LLVMBuilderRef builder,
+ LLVMValueRef function)
+{
+ void *f;
+
+ /* Verify the LLVM IR. If invalid, dump and abort */
+#ifdef DEBUG
+ if (LLVMVerifyFunction(function, LLVMPrintMessageAction)) {
+ if (1)
+ lp_debug_dump_value(function);
+ abort();
+ }
+#endif
+
+ /* Apply optimizations to LLVM IR */
+ LLVMRunFunctionPassManager(screen->pass, function);
+
+ if (gallivm_debug & GALLIVM_DEBUG_IR)
+ {
+ /* Print the LLVM IR to stderr */
+ lp_debug_dump_value(function);
+ debug_printf("\n");
+ }
+
+ /*
+ * Translate the LLVM IR into machine code.
+ */
+ f = LLVMGetPointerToGlobal(screen->engine, function);
+
+ if (gallivm_debug & GALLIVM_DEBUG_ASM)
+ {
+ lp_disassemble(f);
+ }
+
+ lp_func_delete_body(function);
+
+ return f;
+}
+
+/* XXX: Generic code:
+ */
+static void
+lp_emit_emms(LLVMBuilderRef builder)
+{
+#ifdef PIPE_ARCH_X86
+ /* Avoid corrupting the FPU stack on 32bit OSes. */
+ lp_build_intrinsic(builder, "llvm.x86.mmx.emms", LLVMVoidType(), NULL, 0);
+#endif
+}
+
+
+/* XXX: generic code:
+ */
+static void
+set_noalias(LLVMBuilderRef builder,
+ LLVMValueRef function,
+ const LLVMTypeRef *arg_types,
+ int nr_args)
+{
+ int i;
+ for(i = 0; i < Elements(arg_types); ++i)
+ if(LLVMGetTypeKind(arg_types[i]) == LLVMPointerTypeKind)
+ LLVMAddAttribute(LLVMGetParam(function, i),
+ LLVMNoAliasAttribute);
+}
+
+static void
+init_args(LLVMBuilderRef b,
+ struct lp_setup_args *args,
+ const struct lp_setup_variant *variant)
+{
+ LLVMValueRef v0_x = vert_attrib(b, args->v0, 0, 0, "v0_x");
+ LLVMValueRef v0_y = vert_attrib(b, args->v0, 0, 1, "v0_y");
+
+ LLVMValueRef v1_x = vert_attrib(b, args->v1, 0, 0, "v1_x");
+ LLVMValueRef v1_y = vert_attrib(b, args->v1, 0, 1, "v1_y");
+
+ LLVMValueRef v2_x = vert_attrib(b, args->v2, 0, 0, "v2_x");
+ LLVMValueRef v2_y = vert_attrib(b, args->v2, 0, 1, "v2_y");
+
+ LLVMValueRef pixel_center = LLVMConstReal(LLVMFloatType(),
+ variant->key.pixel_center_half ? 0.5 : 0);
+
+ LLVMValueRef x0_center = LLVMBuildFSub(b, v0_x, pixel_center, "x0_center" );
+ LLVMValueRef y0_center = LLVMBuildFSub(b, v0_y, pixel_center, "y0_center" );
+
+ LLVMValueRef dx01 = LLVMBuildFSub(b, v0_x, v1_x, "dx01");
+ LLVMValueRef dy01 = LLVMBuildFSub(b, v0_y, v1_y, "dy01");
+ LLVMValueRef dx20 = LLVMBuildFSub(b, v2_x, v0_x, "dx20");
+ LLVMValueRef dy20 = LLVMBuildFSub(b, v2_y, v0_y, "dy20");
+
+ LLVMValueRef one = LLVMConstReal(LLVMFloatType(), 1.0);
+ LLVMValueRef e = LLVMBuildFMul(b, dx01, dy20, "e");
+ LLVMValueRef f = LLVMBuildFMul(b, dx20, dy01, "f");
+ LLVMValueRef ooa = LLVMBuildFDiv(b, one, LLVMBuildFSub(b, e, f, ""), "ooa");
+
+ LLVMValueRef dy20_ooa = LLVMBuildFMul(b, dy20, ooa, "dy20_ooa");
+ LLVMValueRef dy01_ooa = LLVMBuildFMul(b, dy01, ooa, "dy01_ooa");
+ LLVMValueRef dx20_ooa = LLVMBuildFMul(b, dx20, ooa, "dx20_ooa");
+ LLVMValueRef dx01_ooa = LLVMBuildFMul(b, dx01, ooa, "dx01_ooa");
+
+ args->dy20_ooa = vec4f_from_scalar(b, dy20_ooa, "dy20_ooa_4f");
+ args->dy01_ooa = vec4f_from_scalar(b, dy01_ooa, "dy01_ooa_4f");
+
+ args->dx20_ooa = vec4f_from_scalar(b, dx20_ooa, "dx20_ooa_4f");
+ args->dx01_ooa = vec4f_from_scalar(b, dx01_ooa, "dx01_ooa_4f");
+
+ args->x0_center = vec4f_from_scalar(b, x0_center, "x0_center_4f");
+ args->y0_center = vec4f_from_scalar(b, y0_center, "y0_center_4f");
+}
+
+/**
+ * Generate the runtime callable function for the coefficient calculation.
+ *
+ */
+static struct lp_setup_variant *
+generate_setup_variant(struct llvmpipe_screen *screen,
+ struct lp_setup_variant_key *key)
+{
+ struct lp_setup_variant *variant = NULL;
+ struct lp_setup_args args;
+ char func_name[256];
+ LLVMTypeRef vec4f_type;
+ LLVMTypeRef func_type;
+ LLVMTypeRef arg_types[8];
+ LLVMBasicBlockRef block;
+ LLVMBuilderRef builder;
+ int64_t t0, t1;
+
+ if (0)
+ goto fail;
+
+ variant = CALLOC_STRUCT(lp_setup_variant);
+ if (variant == NULL)
+ goto fail;
+
+ if (LP_DEBUG & DEBUG_COUNTERS) {
+ t0 = os_time_get();
+ }
+
+ memcpy(&variant->key, key, key->size);
+ variant->list_item_global.base = variant;
+
+ util_snprintf(func_name, sizeof(func_name), "fs%u_setup%u",
+ 0,
+ variant->no);
+
+ /* Currently always deal with full 4-wide vertex attributes from
+ * the vertices.
+ */
+
+ vec4f_type = LLVMVectorType(LLVMFloatType(), 4);
+
+ arg_types[0] = LLVMPointerType(vec4f_type, 0); /* v0 */
+ arg_types[1] = LLVMPointerType(vec4f_type, 0); /* v1 */
+ arg_types[2] = LLVMPointerType(vec4f_type, 0); /* v2 */
+ arg_types[3] = LLVMInt32Type(); /* facing */
+ arg_types[4] = LLVMPointerType(vec4f_type, 0); /* a0, aligned */
+ arg_types[5] = LLVMPointerType(vec4f_type, 0); /* dadx, aligned */
+ arg_types[6] = LLVMPointerType(vec4f_type, 0); /* dady, aligned */
+ arg_types[7] = LLVMPointerType(LLVMVoidType(), 0); /* key, unused */
+
+ func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
+
+ variant->function = LLVMAddFunction(screen->module, func_name, func_type);
+ if (!variant->function)
+ goto fail;
+
+ LLVMSetFunctionCallConv(variant->function, LLVMCCallConv);
+
+ args.v0 = LLVMGetParam(variant->function, 0);
+ args.v1 = LLVMGetParam(variant->function, 1);
+ args.v2 = LLVMGetParam(variant->function, 2);
+ args.facing = LLVMGetParam(variant->function, 3);
+ args.a0 = LLVMGetParam(variant->function, 4);
+ args.dadx = LLVMGetParam(variant->function, 5);
+ args.dady = LLVMGetParam(variant->function, 6);
+
+ lp_build_name(args.v0, "in_v0");
+ lp_build_name(args.v1, "in_v1");
+ lp_build_name(args.v2, "in_v2");
+ lp_build_name(args.facing, "in_facing");
+ lp_build_name(args.a0, "out_a0");
+ lp_build_name(args.dadx, "out_dadx");
+ lp_build_name(args.dady, "out_dady");
+
+ /*
+ * Function body
+ */
+ block = LLVMAppendBasicBlock(variant->function, "entry");
+ builder = LLVMCreateBuilder();
+ LLVMPositionBuilderAtEnd(builder, block);
+
+ set_noalias(builder, variant->function, arg_types, Elements(arg_types));
+ init_args(builder, &args, variant);
+ emit_tri_coef(builder, &variant->key, &args);
+
+ lp_emit_emms(builder);
+ LLVMBuildRetVoid(builder);
+ LLVMDisposeBuilder(builder);
+
+ variant->jit_function = finalize_function(screen, builder,
+ variant->function);
+ if (!variant->jit_function)
+ goto fail;
+
+ /*
+ * Update timing information:
+ */
+ if (LP_DEBUG & DEBUG_COUNTERS) {
+ t1 = os_time_get();
+ LP_COUNT_ADD(llvm_compile_time, t1 - t0);
+ LP_COUNT_ADD(nr_llvm_compiles, 1);
+ }
+
+ return variant;
+
+fail:
+ if (variant) {
+ if (variant->function) {
+ if (variant->jit_function)
+ LLVMFreeMachineCodeForFunction(screen->engine,
+ variant->function);
+ LLVMDeleteFunction(variant->function);
+ }
+ FREE(variant);
+ }
+
+ return NULL;
+}
+
+
+
+static void
+lp_make_setup_variant_key(struct llvmpipe_context *lp,
+ struct lp_setup_variant_key *key)
+{
+ struct lp_fragment_shader *fs = lp->fs;
+ unsigned i;
+
+ assert(sizeof key->inputs[0] == sizeof(ushort));
+
+ key->num_inputs = fs->info.num_inputs;
+ key->flatshade_first = lp->rasterizer->flatshade_first;
+ key->pixel_center_half = lp->rasterizer->gl_rasterization_rules;
+ key->size = Offset(struct lp_setup_variant_key,
+ inputs[key->num_inputs]);
+ key->pad = 0;
+
+ memcpy(key->inputs, fs->inputs, key->num_inputs * sizeof key->inputs[0]);
+ for (i = 0; i < key->num_inputs; i++) {
+ if (key->inputs[i].interp == LP_INTERP_COLOR) {
+ if (lp->rasterizer->flatshade)
+ key->inputs[i].interp = LP_INTERP_CONSTANT;
+ else
+ key->inputs[i].interp = LP_INTERP_LINEAR;
+ }
+ }
+
+}
+
+
+static void
+remove_setup_variant(struct llvmpipe_context *lp,
+ struct lp_setup_variant *variant)
+{
+ struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
+
+ if (gallivm_debug & GALLIVM_DEBUG_IR) {
+ debug_printf("llvmpipe: del setup_variant #%u total %u\n",
+ variant->no, lp->nr_setup_variants);
+ }
+
+ if (variant->function) {
+ if (variant->jit_function)
+ LLVMFreeMachineCodeForFunction(screen->engine,
+ variant->function);
+ LLVMDeleteFunction(variant->function);
+ }
+
+ remove_from_list(&variant->list_item_global);
+ lp->nr_setup_variants--;
+ FREE(variant);
+}
+
+
+
+/* When the number of setup variants exceeds a threshold, cull a
+ * fraction (currently a quarter) of them.
+ */
+static void
+cull_setup_variants(struct llvmpipe_context *lp)
+{
+ struct pipe_context *pipe = &lp->pipe;
+ int i;
+
+ /*
+ * XXX: we need to flush the context until we have some sort of reference
+ * counting in fragment shaders as they may still be binned
+ * Flushing alone might not be sufficient we need to wait on it too.
+ */
+ llvmpipe_finish(pipe, __FUNCTION__);
+
+ for (i = 0; i < LP_MAX_SETUP_VARIANTS / 4; i++) {
+ struct lp_setup_variant_list_item *item = last_elem(&lp->setup_variants_list);
+ remove_setup_variant(lp, item->base);
+ }
+}
+
+
+/**
+ * Update fragment/vertex shader linkage state. This is called just
+ * prior to drawing something when some fragment-related state has
+ * changed.
+ */
+void
+llvmpipe_update_setup(struct llvmpipe_context *lp)
+{
+ struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
+
+ struct lp_setup_variant_key *key = &lp->setup_variant.key;
+ struct lp_setup_variant *variant = NULL;
+ struct lp_setup_variant_list_item *li;
+
+ lp_make_setup_variant_key(lp, key);
+
+ foreach(li, &lp->setup_variants_list) {
+ if(li->base->key.size == key->size &&
+ memcmp(&li->base->key, key, key->size) == 0) {
+ variant = li->base;
+ break;
+ }
+ }
+
+ if (variant) {
+ move_to_head(&lp->setup_variants_list, &variant->list_item_global);
+ }
+ else {
+ if (lp->nr_setup_variants >= LP_MAX_SETUP_VARIANTS) {
+ cull_setup_variants(lp);
+ }
+
+ variant = generate_setup_variant(screen, key);
+ if (variant) {
+ insert_at_head(&lp->setup_variants_list, &variant->list_item_global);
+ lp->nr_setup_variants++;
+ }
+ else {
+ /* Keep the old path around for debugging, and also perhaps
+ * in case malloc fails during compilation.
+ */
+ variant = &lp->setup_variant;
+ variant->jit_function = lp_setup_tri_fallback;
+ }
+ }
+
+ lp_setup_set_setup_variant(lp->setup,
+ variant);
+}
+
+void
+lp_delete_setup_variants(struct llvmpipe_context *lp)
+{
+ struct lp_setup_variant_list_item *li;
+ li = first_elem(&lp->setup_variants_list);
+ while(!at_end(&lp->setup_variants_list, li)) {
+ struct lp_setup_variant_list_item *next = next_elem(li);
+ remove_setup_variant(lp, li->base);
+ li = next;
+ }
+}
+
+void
+lp_dump_setup_coef( const struct lp_setup_variant_key *key,
+ const float (*sa0)[4],
+ const float (*sdadx)[4],
+ const float (*sdady)[4])
+{
+ int i, slot;
+
+ for (i = 0; i < NUM_CHANNELS; i++) {
+ float a0 = sa0 [0][i];
+ float dadx = sdadx[0][i];
+ float dady = sdady[0][i];
+
+ debug_printf("POS.%c: a0 = %f, dadx = %f, dady = %f\n",
+ "xyzw"[i],
+ a0, dadx, dady);
+ }
+
+ for (slot = 0; slot < key->num_inputs; slot++) {
+ unsigned usage_mask = key->inputs[slot].usage_mask;
+ for (i = 0; i < NUM_CHANNELS; i++) {
+ if (usage_mask & (1 << i)) {
+ float a0 = sa0 [1 + slot][i];
+ float dadx = sdadx[1 + slot][i];
+ float dady = sdady[1 + slot][i];
+
+ debug_printf("IN[%u].%c: a0 = %f, dadx = %f, dady = %f\n",
+ slot,
+ "xyzw"[i],
+ a0, dadx, dady);
+ }
+ }
+ }
+}
--- /dev/null
+#ifndef LP_STATE_SETUP_H
+#define LP_STATE_SETUP_H
+
+#include "lp_bld_interp.h"
+
+
+struct llvmpipe_context;
+struct lp_setup_variant;
+
+struct lp_setup_variant_list_item
+{
+ struct lp_setup_variant *base;
+ struct lp_setup_variant_list_item *next, *prev;
+};
+
+
+struct lp_setup_variant_key {
+ unsigned num_inputs:8;
+ unsigned flatshade_first:1;
+ unsigned pixel_center_half:1;
+ unsigned pad:7;
+ unsigned size:16;
+ struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
+};
+
+
+typedef void (*lp_jit_setup_triangle)( const float (*v0)[4],
+ const float (*v1)[4],
+ const float (*v2)[4],
+ boolean front_facing,
+ float (*a0)[4],
+ float (*dadx)[4],
+ float (*dady)[4],
+ const struct lp_setup_variant_key *key );
+
+
+
+
+/* At this stage, for a given variant key, we create a
+ * draw_vertex_info struct telling the draw module how to format the
+ * vertices, and an llvm-generated function which calculates the
+ * attribute interpolants (a0, dadx, dady) from three of those
+ * vertices.
+ */
+struct lp_setup_variant {
+ struct lp_setup_variant_key key;
+
+ struct lp_setup_variant_list_item list_item_global;
+
+ /* XXX: this is a pointer to the LLVM IR. Once jit_function is
+ * generated, we never need to use the IR again - need to find a
+ * way to release this data without destroying the generated
+ * assembly.
+ */
+ LLVMValueRef function;
+
+ /* The actual generated setup function:
+ */
+ lp_jit_setup_triangle jit_function;
+
+ unsigned no;
+};
+
+void lp_setup_tri_fallback( const float (*v0)[4],
+ const float (*v1)[4],
+ const float (*v2)[4],
+ boolean front_facing,
+ float (*a0)[4],
+ float (*dadx)[4],
+ float (*dady)[4],
+ const struct lp_setup_variant_key *key );
+
+void lp_delete_setup_variants(struct llvmpipe_context *lp);
+
+void
+lp_dump_setup_coef( const struct lp_setup_variant_key *key,
+ const float (*sa0)[4],
+ const float (*sdadx)[4],
+ const float (*sdady)[4]);
+
+#endif
--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2010, VMware.
+ * 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, 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 VMWARE 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.
+ *
+ **************************************************************************/
+
+/*
+ * Fallback (non-llvm) path for triangle setup. Will remove once llvm
+ * is up and running.
+ *
+ * TODO: line/point setup.
+ */
+
+#include "util/u_math.h"
+#include "util/u_memory.h"
+#include "lp_state_setup.h"
+
+
+
+#if defined(PIPE_ARCH_SSE)
+#include <emmintrin.h>
+
+struct setup_args {
+ float (*a0)[4]; /* aligned */
+ float (*dadx)[4]; /* aligned */
+ float (*dady)[4]; /* aligned */
+
+ float x0_center;
+ float y0_center;
+
+ /* turn these into an aligned float[4] */
+ float dy01_ooa;
+ float dy20_ooa;
+ float dx01_ooa;
+ float dx20_ooa;
+
+ const float (*v0)[4]; /* aligned */
+ const float (*v1)[4]; /* aligned */
+ const float (*v2)[4]; /* aligned */
+
+ boolean frontfacing; /* remove eventually */
+};
+
+
+static void constant_coef4( struct setup_args *args,
+ unsigned slot,
+ const float *attr)
+{
+ *(__m128 *)args->a0[slot] = *(__m128 *)attr;
+ *(__m128 *)args->dadx[slot] = _mm_set1_ps(0.0);
+ *(__m128 *)args->dady[slot] = _mm_set1_ps(0.0);
+}
+
+
+
+/**
+ * Setup the fragment input attribute with the front-facing value.
+ * \param frontface is the triangle front facing?
+ */
+static void setup_facing_coef( struct setup_args *args,
+ unsigned slot )
+{
+ /* XXX: just pass frontface directly to the shader, don't bother
+ * treating it as an input.
+ */
+ __m128 a0 = _mm_setr_ps(args->frontfacing ? 1.0 : -1.0,
+ 0, 0, 0);
+
+ *(__m128 *)args->a0[slot] = a0;
+ *(__m128 *)args->dadx[slot] = _mm_set1_ps(0.0);
+ *(__m128 *)args->dady[slot] = _mm_set1_ps(0.0);
+}
+
+
+
+static void calc_coef4( struct setup_args *args,
+ unsigned slot,
+ __m128 a0,
+ __m128 a1,
+ __m128 a2)
+{
+ __m128 da01 = _mm_sub_ps(a0, a1);
+ __m128 da20 = _mm_sub_ps(a2, a0);
+
+ __m128 da01_dy20_ooa = _mm_mul_ps(da01, _mm_set1_ps(args->dy20_ooa));
+ __m128 da20_dy01_ooa = _mm_mul_ps(da20, _mm_set1_ps(args->dy01_ooa));
+ __m128 dadx = _mm_sub_ps(da01_dy20_ooa, da20_dy01_ooa);
+
+ __m128 da01_dx20_ooa = _mm_mul_ps(da01, _mm_set1_ps(args->dx20_ooa));
+ __m128 da20_dx01_ooa = _mm_mul_ps(da20, _mm_set1_ps(args->dx01_ooa));
+ __m128 dady = _mm_sub_ps(da20_dx01_ooa, da01_dx20_ooa);
+
+ __m128 dadx_x0 = _mm_mul_ps(dadx, _mm_set1_ps(args->x0_center));
+ __m128 dady_y0 = _mm_mul_ps(dady, _mm_set1_ps(args->y0_center));
+ __m128 attr_v0 = _mm_add_ps(dadx_x0, dady_y0);
+ __m128 attr_0 = _mm_sub_ps(a0, attr_v0);
+
+ *(__m128 *)args->a0[slot] = attr_0;
+ *(__m128 *)args->dadx[slot] = dadx;
+ *(__m128 *)args->dady[slot] = dady;
+}
+
+
+static void linear_coef( struct setup_args *args,
+ unsigned slot,
+ unsigned vert_attr)
+{
+ __m128 a0 = *(const __m128 *)args->v0[vert_attr];
+ __m128 a1 = *(const __m128 *)args->v1[vert_attr];
+ __m128 a2 = *(const __m128 *)args->v2[vert_attr];
+
+ calc_coef4(args, slot, a0, a1, a2);
+}
+
+
+
+/**
+ * Compute a0, dadx and dady for a perspective-corrected interpolant,
+ * for a triangle.
+ * We basically multiply the vertex value by 1/w before computing
+ * the plane coefficients (a0, dadx, dady).
+ * Later, when we compute the value at a particular fragment position we'll
+ * divide the interpolated value by the interpolated W at that fragment.
+ */
+static void perspective_coef( struct setup_args *args,
+ unsigned slot,
+ unsigned vert_attr)
+{
+ /* premultiply by 1/w (v[0][3] is always 1/w):
+ */
+ __m128 a0 = *(const __m128 *)args->v0[vert_attr];
+ __m128 a1 = *(const __m128 *)args->v1[vert_attr];
+ __m128 a2 = *(const __m128 *)args->v2[vert_attr];
+
+ __m128 a0_oow = _mm_mul_ps(a0, _mm_set1_ps(args->v0[0][3]));
+ __m128 a1_oow = _mm_mul_ps(a1, _mm_set1_ps(args->v1[0][3]));
+ __m128 a2_oow = _mm_mul_ps(a2, _mm_set1_ps(args->v2[0][3]));
+
+ calc_coef4(args, slot, a0_oow, a1_oow, a2_oow);
+}
+
+
+
+
+
+/**
+ * Compute the args-> dadx, dady, a0 values.
+ *
+ * Note that this was effectively a little interpreted program, where
+ * the opcodes were LP_INTERP_*. This is the program which is now
+ * being code-generated in lp_state_setup.c.
+ */
+void lp_setup_tri_fallback( const float (*v0)[4],
+ const float (*v1)[4],
+ const float (*v2)[4],
+ boolean front_facing,
+ float (*a0)[4],
+ float (*dadx)[4],
+ float (*dady)[4],
+ const struct lp_setup_variant_key *key )
+{
+ struct setup_args args;
+ float pixel_offset = key->pixel_center_half ? 0.5 : 0.0;
+ float dx01 = v0[0][0] - v1[0][0];
+ float dy01 = v0[0][1] - v1[0][1];
+ float dx20 = v2[0][0] - v0[0][0];
+ float dy20 = v2[0][1] - v0[0][1];
+ float oneoverarea = 1.0f / (dx01 * dy20 - dx20 * dy01);
+ unsigned slot;
+
+ args.v0 = v0;
+ args.v1 = v1;
+ args.v2 = v2;
+ args.frontfacing = front_facing;
+ args.a0 = a0;
+ args.dadx = dadx;
+ args.dady = dady;
+
+ args.x0_center = v0[0][0] - pixel_offset;
+ args.y0_center = v0[0][1] - pixel_offset;
+ args.dx01_ooa = dx01 * oneoverarea;
+ args.dx20_ooa = dx20 * oneoverarea;
+ args.dy01_ooa = dy01 * oneoverarea;
+ args.dy20_ooa = dy20 * oneoverarea;
+
+ /* The internal position input is in slot zero:
+ */
+ linear_coef(&args, 0, 0);
+
+ /* setup interpolation for all the remaining attributes:
+ */
+ for (slot = 0; slot < key->num_inputs; slot++) {
+ unsigned vert_attr = key->inputs[slot].src_index;
+
+ switch (key->inputs[slot].interp) {
+ case LP_INTERP_CONSTANT:
+ if (key->flatshade_first) {
+ constant_coef4(&args, slot+1, args.v0[vert_attr]);
+ }
+ else {
+ constant_coef4(&args, slot+1, args.v2[vert_attr]);
+ }
+ break;
+
+ case LP_INTERP_LINEAR:
+ linear_coef(&args, slot+1, vert_attr);
+ break;
+
+ case LP_INTERP_PERSPECTIVE:
+ perspective_coef(&args, slot+1, vert_attr);
+ break;
+
+ case LP_INTERP_POSITION:
+ /*
+ * The generated pixel interpolators will pick up the coeffs from
+ * slot 0.
+ */
+ break;
+
+ case LP_INTERP_FACING:
+ setup_facing_coef(&args, slot+1);
+ break;
+
+ default:
+ assert(0);
+ }
+ }
+}
+
+#else
+
+void lp_setup_tri_fallback( const float (*v0)[4],
+ const float (*v1)[4],
+ const float (*v2)[4],
+ boolean front_facing,
+ float (*a0)[4],
+ float (*dadx)[4],
+ float (*dady)[4],
+ const struct lp_setup_variant_key *key )
+{
+ /* this path for debugging only, don't need a non-sse version. */
+}
+
+#endif
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