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|
#include "xorg_exa_tgsi.h"
/*### stupidity defined in X11/extensions/XI.h */
#undef Absolute
#include "pipe/p_format.h"
#include "pipe/p_context.h"
#include "pipe/p_state.h"
#include "pipe/p_inlines.h"
#include "pipe/p_shader_tokens.h"
#include "util/u_memory.h"
#include "util/u_simple_shaders.h"
#include "tgsi/tgsi_ureg.h"
#include "cso_cache/cso_context.h"
#include "cso_cache/cso_hash.h"
/* Vertex shader:
* IN[0] = vertex pos
* IN[1] = src tex coord | solid fill color
* IN[2] = mask tex coord
* IN[3] = dst tex coord
* CONST[0] = (2/dst_width, 2/dst_height, 1, 1)
* CONST[1] = (-1, -1, 0, 0)
*
* OUT[0] = vertex pos
* OUT[1] = src tex coord | solid fill color
* OUT[2] = mask tex coord
* OUT[3] = dst tex coord
*/
/* Fragment shader:
* SAMP[0] = src
* SAMP[1] = mask
* SAMP[2] = dst
* IN[0] = pos src | solid fill color
* IN[1] = pos mask
* IN[2] = pos dst
* CONST[0] = (0, 0, 0, 1)
*
* OUT[0] = color
*/
struct xorg_shaders {
struct exa_context *exa;
struct cso_hash *vs_hash;
struct cso_hash *fs_hash;
};
static const char over_op[] =
"SUB TEMP[3], CONST[0].wwww, TEMP[1].wwww\n"
"MUL TEMP[3], TEMP[0], TEMP[3]\n"
"ADD TEMP[0], TEMP[3], TEMP[0]\n";
static INLINE void
create_preamble(struct ureg_program *ureg)
{
}
static INLINE void
src_in_mask(struct ureg_program *ureg,
struct ureg_dst dst,
struct ureg_src src,
struct ureg_src mask)
{
/* MUL dst, src, mask.wwww */
ureg_MUL(ureg, dst, src,
ureg_scalar(mask, TGSI_SWIZZLE_W));
}
static struct ureg_src
vs_normalize_coords(struct ureg_program *ureg, struct ureg_src coords,
struct ureg_src const0, struct ureg_src const1)
{
struct ureg_dst tmp = ureg_DECL_temporary(ureg);
struct ureg_src ret;
ureg_MUL(ureg, tmp, coords, const0);
ureg_ADD(ureg, tmp, ureg_src(tmp), const1);
ret = ureg_src(tmp);
ureg_release_temporary(ureg, tmp);
return ret;
}
static void
linear_gradient(struct ureg_program *ureg,
struct ureg_dst out,
struct ureg_src pos,
struct ureg_src sampler,
struct ureg_src coords,
struct ureg_src const0124,
struct ureg_src matrow0,
struct ureg_src matrow1,
struct ureg_src matrow2)
{
struct ureg_dst temp0 = ureg_DECL_temporary(ureg);
struct ureg_dst temp1 = ureg_DECL_temporary(ureg);
struct ureg_dst temp2 = ureg_DECL_temporary(ureg);
struct ureg_dst temp3 = ureg_DECL_temporary(ureg);
struct ureg_dst temp4 = ureg_DECL_temporary(ureg);
struct ureg_dst temp5 = ureg_DECL_temporary(ureg);
ureg_MOV(ureg,
ureg_writemask(temp0, TGSI_WRITEMASK_XY), pos);
ureg_MOV(ureg,
ureg_writemask(temp0, TGSI_WRITEMASK_Z),
ureg_scalar(const0124, TGSI_SWIZZLE_Y));
ureg_DP3(ureg, temp1, matrow0, ureg_src(temp0));
ureg_DP3(ureg, temp2, matrow1, ureg_src(temp0));
ureg_DP3(ureg, temp3, matrow2, ureg_src(temp0));
ureg_RCP(ureg, temp3, ureg_src(temp3));
ureg_MUL(ureg, temp1, ureg_src(temp1), ureg_src(temp3));
ureg_MUL(ureg, temp2, ureg_src(temp2), ureg_src(temp3));
ureg_MOV(ureg, ureg_writemask(temp4, TGSI_WRITEMASK_X),
ureg_src(temp1));
ureg_MOV(ureg, ureg_writemask(temp4, TGSI_WRITEMASK_Y),
ureg_src(temp2));
ureg_MUL(ureg, temp0,
ureg_scalar(coords, TGSI_SWIZZLE_Y),
ureg_scalar(ureg_src(temp4), TGSI_SWIZZLE_Y));
ureg_MAD(ureg, temp1,
ureg_scalar(coords, TGSI_SWIZZLE_X),
ureg_scalar(ureg_src(temp4), TGSI_SWIZZLE_X),
ureg_src(temp0));
ureg_MUL(ureg, temp2,
ureg_src(temp1),
ureg_scalar(coords, TGSI_SWIZZLE_Z));
ureg_TEX(ureg, out,
TGSI_TEXTURE_1D, ureg_src(temp2), sampler);
ureg_release_temporary(ureg, temp0);
ureg_release_temporary(ureg, temp1);
ureg_release_temporary(ureg, temp2);
ureg_release_temporary(ureg, temp3);
ureg_release_temporary(ureg, temp4);
ureg_release_temporary(ureg, temp5);
}
static void
radial_gradient(struct ureg_program *ureg,
struct ureg_dst out,
struct ureg_src pos,
struct ureg_src sampler,
struct ureg_src coords,
struct ureg_src const0124,
struct ureg_src matrow0,
struct ureg_src matrow1,
struct ureg_src matrow2)
{
struct ureg_dst temp0 = ureg_DECL_temporary(ureg);
struct ureg_dst temp1 = ureg_DECL_temporary(ureg);
struct ureg_dst temp2 = ureg_DECL_temporary(ureg);
struct ureg_dst temp3 = ureg_DECL_temporary(ureg);
struct ureg_dst temp4 = ureg_DECL_temporary(ureg);
struct ureg_dst temp5 = ureg_DECL_temporary(ureg);
ureg_MOV(ureg,
ureg_writemask(temp0, TGSI_WRITEMASK_XY),
pos);
ureg_MOV(ureg,
ureg_writemask(temp0, TGSI_WRITEMASK_Z),
ureg_scalar(const0124, TGSI_SWIZZLE_Y));
ureg_DP3(ureg, temp1, matrow0, ureg_src(temp0));
ureg_DP3(ureg, temp2, matrow1, ureg_src(temp0));
ureg_DP3(ureg, temp3, matrow2, ureg_src(temp0));
ureg_RCP(ureg, temp3, ureg_src(temp3));
ureg_MUL(ureg, temp1, ureg_src(temp1), ureg_src(temp3));
ureg_MUL(ureg, temp2, ureg_src(temp2), ureg_src(temp3));
ureg_MOV(ureg, ureg_writemask(temp5, TGSI_WRITEMASK_X),
ureg_src(temp1));
ureg_MOV(ureg, ureg_writemask(temp5, TGSI_WRITEMASK_Y),
ureg_src(temp2));
ureg_MUL(ureg, temp0, ureg_scalar(coords, TGSI_SWIZZLE_Y),
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_Y));
ureg_MAD(ureg, temp1,
ureg_scalar(coords, TGSI_SWIZZLE_X),
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_X),
ureg_src(temp0));
ureg_ADD(ureg, temp1,
ureg_src(temp1), ureg_src(temp1));
ureg_MUL(ureg, temp3,
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_Y),
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_Y));
ureg_MAD(ureg, temp4,
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_X),
ureg_scalar(ureg_src(temp5), TGSI_SWIZZLE_X),
ureg_src(temp3));
ureg_MOV(ureg, temp4, ureg_negate(ureg_src(temp4)));
ureg_MUL(ureg, temp2,
ureg_scalar(coords, TGSI_SWIZZLE_Z),
ureg_src(temp4));
ureg_MUL(ureg, temp0,
ureg_scalar(const0124, TGSI_SWIZZLE_W),
ureg_src(temp2));
ureg_MUL(ureg, temp3,
ureg_src(temp1), ureg_src(temp1));
ureg_SUB(ureg, temp2,
ureg_src(temp3), ureg_src(temp0));
ureg_RSQ(ureg, temp2, ureg_abs(ureg_src(temp2)));
ureg_RCP(ureg, temp2, ureg_src(temp2));
ureg_SUB(ureg, temp1,
ureg_src(temp2), ureg_src(temp1));
ureg_ADD(ureg, temp0,
ureg_scalar(coords, TGSI_SWIZZLE_Z),
ureg_scalar(coords, TGSI_SWIZZLE_Z));
ureg_RCP(ureg, temp0, ureg_src(temp0));
ureg_MUL(ureg, temp2,
ureg_src(temp1), ureg_src(temp0));
ureg_TEX(ureg, out, TGSI_TEXTURE_1D,
ureg_src(temp2), sampler);
ureg_release_temporary(ureg, temp0);
ureg_release_temporary(ureg, temp1);
ureg_release_temporary(ureg, temp2);
ureg_release_temporary(ureg, temp3);
ureg_release_temporary(ureg, temp4);
ureg_release_temporary(ureg, temp5);
}
static void *
create_vs(struct pipe_context *pipe,
unsigned vs_traits)
{
struct ureg_program *ureg;
struct ureg_src src;
struct ureg_dst dst;
struct ureg_src const0, const1;
boolean is_fill = vs_traits & VS_FILL;
boolean is_composite = vs_traits & VS_COMPOSITE;
boolean has_mask = vs_traits & VS_MASK;
ureg = ureg_create(TGSI_PROCESSOR_VERTEX);
if (ureg == NULL)
return 0;
const0 = ureg_DECL_constant(ureg);
const1 = ureg_DECL_constant(ureg);
/* it has to be either a fill or a composite op */
debug_assert(is_fill ^ is_composite);
src = ureg_DECL_vs_input(ureg,
TGSI_SEMANTIC_POSITION, 0);
dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0);
src = vs_normalize_coords(ureg, src,
const0, const1);
ureg_MOV(ureg, dst, src);
if (is_composite) {
src = ureg_DECL_vs_input(ureg,
TGSI_SEMANTIC_GENERIC, 1);
dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_GENERIC, 1);
ureg_MOV(ureg, dst, src);
}
if (is_fill) {
src = ureg_DECL_vs_input(ureg,
TGSI_SEMANTIC_COLOR, 1);
dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 1);
ureg_MOV(ureg, dst, src);
}
if (has_mask) {
src = ureg_DECL_vs_input(ureg,
TGSI_SEMANTIC_GENERIC, 2);
dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 2);
ureg_MOV(ureg, dst, src);
}
ureg_END(ureg);
return ureg_create_shader_and_destroy(ureg, pipe);
}
static void *
create_fs(struct pipe_context *pipe,
unsigned fs_traits)
{
struct ureg_program *ureg;
struct ureg_src /*dst_sampler,*/ src_sampler, mask_sampler;
struct ureg_src /*dst_pos,*/ src_input, mask_pos;
struct ureg_dst src, mask;
struct ureg_dst out;
boolean has_mask = fs_traits & FS_MASK;
boolean is_fill = fs_traits & FS_FILL;
boolean is_composite = fs_traits & FS_COMPOSITE;
boolean is_solid = fs_traits & FS_SOLID_FILL;
boolean is_lingrad = fs_traits & FS_LINGRAD_FILL;
boolean is_radgrad = fs_traits & FS_RADGRAD_FILL;
ureg = ureg_create(TGSI_PROCESSOR_FRAGMENT);
if (ureg == NULL)
return 0;
/* it has to be either a fill or a composite op */
debug_assert(is_fill ^ is_composite);
out = ureg_DECL_output(ureg,
TGSI_SEMANTIC_COLOR,
0);
if (is_composite) {
src_sampler = ureg_DECL_sampler(ureg, 0);
src_input = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_POSITION,
0,
TGSI_INTERPOLATE_PERSPECTIVE);
}
if (is_fill) {
if (is_solid)
src_input = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_COLOR,
0,
TGSI_INTERPOLATE_PERSPECTIVE);
else
src_input = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_POSITION,
0,
TGSI_INTERPOLATE_PERSPECTIVE);
}
if (has_mask) {
mask_sampler = ureg_DECL_sampler(ureg, 1);
mask_pos = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_POSITION,
1,
TGSI_INTERPOLATE_PERSPECTIVE);
}
#if 0 /* unused right now */
dst_sampler = ureg_DECL_sampler(ureg, 2);
dst_pos = ureg_DECL_fs_input(ureg,
TGSI_SEMANTIC_POSITION,
2,
TGSI_INTERPOLATE_PERSPECTIVE);
#endif
if (is_composite) {
if (has_mask)
src = ureg_DECL_temporary(ureg);
else
src = out;
ureg_TEX(ureg, src,
TGSI_TEXTURE_2D, src_input, src_sampler);
} else if (is_fill) {
if (is_solid) {
if (has_mask)
src = ureg_dst(src_input);
else
ureg_MOV(ureg, out, src_input);
} else if (is_lingrad || is_radgrad) {
struct ureg_src coords, const0124,
matrow0, matrow1, matrow2;
if (has_mask)
src = ureg_DECL_temporary(ureg);
else
src = out;
coords = ureg_DECL_constant(ureg);
const0124 = ureg_DECL_constant(ureg);
matrow0 = ureg_DECL_constant(ureg);
matrow1 = ureg_DECL_constant(ureg);
matrow2 = ureg_DECL_constant(ureg);
if (is_lingrad) {
linear_gradient(ureg, src,
src_input, src_sampler,
coords, const0124,
matrow0, matrow1, matrow2);
} else if (is_radgrad) {
radial_gradient(ureg, src,
src_input, src_sampler,
coords, const0124,
matrow0, matrow1, matrow2);
}
} else
debug_assert(!"Unknown fill type!");
}
if (has_mask) {
mask = ureg_DECL_temporary(ureg);
ureg_TEX(ureg, mask,
TGSI_TEXTURE_2D, mask_pos, mask_sampler);
/* src IN mask */
src_in_mask(ureg, out, ureg_src(src), ureg_src(mask));
ureg_release_temporary(ureg, mask);
}
ureg_END(ureg);
return ureg_create_shader_and_destroy(ureg, pipe);
}
struct xorg_shaders * xorg_shaders_create(struct exa_context *exa)
{
struct xorg_shaders *sc = CALLOC_STRUCT(xorg_shaders);
sc->exa = exa;
sc->vs_hash = cso_hash_create();
sc->fs_hash = cso_hash_create();
return sc;
}
static void
cache_destroy(struct cso_context *cso,
struct cso_hash *hash,
unsigned processor)
{
struct cso_hash_iter iter = cso_hash_first_node(hash);
while (!cso_hash_iter_is_null(iter)) {
void *shader = (void *)cso_hash_iter_data(iter);
if (processor == PIPE_SHADER_FRAGMENT) {
cso_delete_fragment_shader(cso, shader);
} else if (processor == PIPE_SHADER_VERTEX) {
cso_delete_vertex_shader(cso, shader);
}
iter = cso_hash_erase(hash, iter);
}
cso_hash_delete(hash);
}
void xorg_shaders_destroy(struct xorg_shaders *sc)
{
cache_destroy(sc->exa->cso, sc->vs_hash,
PIPE_SHADER_VERTEX);
cache_destroy(sc->exa->cso, sc->fs_hash,
PIPE_SHADER_FRAGMENT);
free(sc);
}
static INLINE void *
shader_from_cache(struct pipe_context *pipe,
unsigned type,
struct cso_hash *hash,
unsigned key)
{
void *shader = 0;
struct cso_hash_iter iter = cso_hash_find(hash, key);
if (cso_hash_iter_is_null(iter)) {
if (type == PIPE_SHADER_VERTEX)
shader = create_vs(pipe, key);
else
shader = create_fs(pipe, key);
cso_hash_insert(hash, key, shader);
} else
shader = (void *)cso_hash_iter_data(iter);
return shader;
}
struct xorg_shader xorg_shaders_get(struct xorg_shaders *sc,
unsigned vs_traits,
unsigned fs_traits)
{
struct xorg_shader shader = {0};
void *vs, *fs;
vs = shader_from_cache(sc->exa->ctx, PIPE_SHADER_VERTEX,
sc->vs_hash, vs_traits);
fs = shader_from_cache(sc->exa->ctx, PIPE_SHADER_FRAGMENT,
sc->fs_hash, fs_traits);
debug_assert(vs && fs);
if (!vs || !fs)
return shader;
shader.vs = vs;
shader.fs = fs;
return shader;
}
|
