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mesa/src/gallium/drivers/freedreno/freedreno_program.c

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/*
* Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include "tgsi/tgsi_text.h"
#include "tgsi/tgsi_ureg.h"
#include "util/u_simple_shaders.h"
#include "freedreno_context.h"
#include "freedreno_program.h"
static void
update_bound_stage(struct fd_context *ctx, enum pipe_shader_type shader,
bool bound) assert_dt
{
if (bound) {
ctx->bound_shader_stages |= BIT(shader);
} else {
ctx->bound_shader_stages &= ~BIT(shader);
}
}
static void
fd_set_patch_vertices(struct pipe_context *pctx, uint8_t patch_vertices) in_dt
{
struct fd_context *ctx = fd_context(pctx);
ctx->patch_vertices = patch_vertices;
}
static void
fd_vs_state_bind(struct pipe_context *pctx, void *hwcso) in_dt
{
struct fd_context *ctx = fd_context(pctx);
ctx->prog.vs = hwcso;
fd_context_dirty_shader(ctx, PIPE_SHADER_VERTEX, FD_DIRTY_SHADER_PROG);
update_bound_stage(ctx, PIPE_SHADER_VERTEX, !!hwcso);
}
static void
fd_tcs_state_bind(struct pipe_context *pctx, void *hwcso) in_dt
{
struct fd_context *ctx = fd_context(pctx);
ctx->prog.hs = hwcso;
fd_context_dirty_shader(ctx, PIPE_SHADER_TESS_CTRL, FD_DIRTY_SHADER_PROG);
update_bound_stage(ctx, PIPE_SHADER_TESS_CTRL, !!hwcso);
}
static void
fd_tes_state_bind(struct pipe_context *pctx, void *hwcso) in_dt
{
struct fd_context *ctx = fd_context(pctx);
ctx->prog.ds = hwcso;
fd_context_dirty_shader(ctx, PIPE_SHADER_TESS_EVAL, FD_DIRTY_SHADER_PROG);
update_bound_stage(ctx, PIPE_SHADER_TESS_EVAL, !!hwcso);
}
static void
fd_gs_state_bind(struct pipe_context *pctx, void *hwcso) in_dt
{
struct fd_context *ctx = fd_context(pctx);
ctx->prog.gs = hwcso;
fd_context_dirty_shader(ctx, PIPE_SHADER_GEOMETRY, FD_DIRTY_SHADER_PROG);
update_bound_stage(ctx, PIPE_SHADER_GEOMETRY, !!hwcso);
}
static void
fd_fs_state_bind(struct pipe_context *pctx, void *hwcso) in_dt
{
struct fd_context *ctx = fd_context(pctx);
ctx->prog.fs = hwcso;
fd_context_dirty_shader(ctx, PIPE_SHADER_FRAGMENT, FD_DIRTY_SHADER_PROG);
update_bound_stage(ctx, PIPE_SHADER_FRAGMENT, !!hwcso);
}
static const char *solid_fs = "FRAG \n"
"PROPERTY FS_COLOR0_WRITES_ALL_CBUFS 1 \n"
"DCL CONST[0] \n"
"DCL OUT[0], COLOR \n"
" 0: MOV OUT[0], CONST[0] \n"
" 1: END \n";
static const char *solid_vs = "VERT \n"
"DCL IN[0] \n"
"DCL OUT[0], POSITION \n"
" 0: MOV OUT[0], IN[0] \n"
" 1: END \n";
static void *
assemble_tgsi(struct pipe_context *pctx, const char *src, bool frag)
{
struct tgsi_token toks[32];
struct pipe_shader_state cso = {
.tokens = toks,
};
bool ret = tgsi_text_translate(src, toks, ARRAY_SIZE(toks));
assume(ret);
if (frag)
return pctx->create_fs_state(pctx, &cso);
else
return pctx->create_vs_state(pctx, &cso);
}
/* the correct semantic to use for the texcoord varying depends on pipe-cap: */
static enum tgsi_semantic
texcoord_semantic(struct pipe_context *pctx)
{
struct pipe_screen *pscreen = pctx->screen;
if (pscreen->get_param(pscreen, PIPE_CAP_TGSI_TEXCOORD)) {
return TGSI_SEMANTIC_TEXCOORD;
} else {
return TGSI_SEMANTIC_GENERIC;
}
}
static void *
fd_prog_blit_vs(struct pipe_context *pctx)
{
struct ureg_program *ureg;
ureg = ureg_create(PIPE_SHADER_VERTEX);
if (!ureg)
return NULL;
struct ureg_src in0 = ureg_DECL_vs_input(ureg, 0);
struct ureg_src in1 = ureg_DECL_vs_input(ureg, 1);
struct ureg_dst out0 = ureg_DECL_output(ureg, texcoord_semantic(pctx), 0);
struct ureg_dst out1 = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 1);
ureg_MOV(ureg, out0, in0);
ureg_MOV(ureg, out1, in1);
ureg_END(ureg);
return ureg_create_shader_and_destroy(ureg, pctx);
}
static void *
fd_prog_blit_fs(struct pipe_context *pctx, int rts, bool depth)
{
int i;
struct ureg_src tc;
struct ureg_program *ureg;
debug_assert(rts <= MAX_RENDER_TARGETS);
ureg = ureg_create(PIPE_SHADER_FRAGMENT);
if (!ureg)
return NULL;
tc = ureg_DECL_fs_input(ureg, texcoord_semantic(pctx), 0,
TGSI_INTERPOLATE_PERSPECTIVE);
for (i = 0; i < rts; i++)
ureg_TEX(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, i),
TGSI_TEXTURE_2D, tc, ureg_DECL_sampler(ureg, i));
if (depth)
ureg_TEX(ureg,
ureg_writemask(ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0),
TGSI_WRITEMASK_Z),
TGSI_TEXTURE_2D, tc, ureg_DECL_sampler(ureg, rts));
ureg_END(ureg);
return ureg_create_shader_and_destroy(ureg, pctx);
}
void
fd_prog_init(struct pipe_context *pctx)
{
struct fd_context *ctx = fd_context(pctx);
int i;
pctx->bind_vs_state = fd_vs_state_bind;
pctx->bind_tcs_state = fd_tcs_state_bind;
pctx->bind_tes_state = fd_tes_state_bind;
pctx->bind_gs_state = fd_gs_state_bind;
pctx->bind_fs_state = fd_fs_state_bind;
pctx->set_patch_vertices = fd_set_patch_vertices;
ctx->solid_prog.fs = assemble_tgsi(pctx, solid_fs, true);
ctx->solid_prog.vs = assemble_tgsi(pctx, solid_vs, false);
if (ctx->screen->gen >= 6) {
ctx->solid_layered_prog.fs = assemble_tgsi(pctx, solid_fs, true);
ctx->solid_layered_prog.vs = util_make_layered_clear_vertex_shader(pctx);
}
if (ctx->screen->gen >= 5)
return;
ctx->blit_prog[0].vs = fd_prog_blit_vs(pctx);
ctx->blit_prog[0].fs = fd_prog_blit_fs(pctx, 1, false);
if (ctx->screen->gen < 3)
return;
for (i = 1; i < ctx->screen->max_rts; i++) {
ctx->blit_prog[i].vs = ctx->blit_prog[0].vs;
ctx->blit_prog[i].fs = fd_prog_blit_fs(pctx, i + 1, false);
}
ctx->blit_z.vs = ctx->blit_prog[0].vs;
ctx->blit_z.fs = fd_prog_blit_fs(pctx, 0, true);
ctx->blit_zs.vs = ctx->blit_prog[0].vs;
ctx->blit_zs.fs = fd_prog_blit_fs(pctx, 1, true);
}
void
fd_prog_fini(struct pipe_context *pctx)
{
struct fd_context *ctx = fd_context(pctx);
int i;
pctx->delete_vs_state(pctx, ctx->solid_prog.vs);
pctx->delete_fs_state(pctx, ctx->solid_prog.fs);
if (ctx->screen->gen >= 6) {
pctx->delete_vs_state(pctx, ctx->solid_layered_prog.vs);
pctx->delete_fs_state(pctx, ctx->solid_layered_prog.fs);
}
if (ctx->screen->gen >= 5)
return;
pctx->delete_vs_state(pctx, ctx->blit_prog[0].vs);
pctx->delete_fs_state(pctx, ctx->blit_prog[0].fs);
if (ctx->screen->gen < 3)
return;
for (i = 1; i < ctx->screen->max_rts; i++)
pctx->delete_fs_state(pctx, ctx->blit_prog[i].fs);
pctx->delete_fs_state(pctx, ctx->blit_z.fs);
pctx->delete_fs_state(pctx, ctx->blit_zs.fs);
}
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