freedreno/a3xx: drop hand-coded blit/solid shaders

Instead in the common code, construct these shaders from TGSI.  For now
we let a2xx keep it's hand coded shaders, as it's compiler isn't quite
up to the job yet.  All the same it is a net drop in code size and gets
rid of special cases.

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 128 insertions, 0 deletions

diff --git a/src/gallium/drivers/freedreno/freedreno_program.c b/src/gallium/drivers/freedreno/freedreno_program.c
new file mode 100644
index 00000000000..aaf157f3049
--- /dev/null
+++ b/src/gallium/drivers/freedreno/freedreno_program.c
@@ -0,0 +1,128 @@
+/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
+
+/*
+ * Copyright (C) 2014 Rob Clark <[email protected]>
+ *
+ * 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 <[email protected]>
+ */
+
+#include "tgsi/tgsi_text.h"
+
+#include "freedreno_program.h"
+#include "freedreno_context.h"
+
+static void
+fd_fp_state_bind(struct pipe_context *pctx, void *hwcso)
+{
+	struct fd_context *ctx = fd_context(pctx);
+	ctx->prog.fp = hwcso;
+	ctx->prog.dirty |= FD_SHADER_DIRTY_FP;
+	ctx->dirty |= FD_DIRTY_PROG;
+}
+
+static void
+fd_vp_state_bind(struct pipe_context *pctx, void *hwcso)
+{
+	struct fd_context *ctx = fd_context(pctx);
+	ctx->prog.vp = hwcso;
+	ctx->prog.dirty |= FD_SHADER_DIRTY_VP;
+	ctx->dirty |= FD_DIRTY_PROG;
+}
+
+static const char *solid_fp =
+	"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_vp =
+	"VERT                                        \n"
+	"DCL IN[0]                                   \n"
+	"DCL OUT[0], POSITION                        \n"
+	"  0: MOV OUT[0], IN[0]                      \n"
+	"  1: END                                    \n";
+
+static const char *blit_fp =
+	"FRAG                                        \n"
+	"PROPERTY FS_COLOR0_WRITES_ALL_CBUFS 1       \n"
+	"DCL IN[0], TEXCOORD                         \n"
+	"DCL OUT[0], COLOR                           \n"
+	"DCL SAMP[0]                                 \n"
+	"  0: TEX OUT[0], IN[0], SAMP[0], 2D         \n"
+	"  1: END                                    \n";
+
+static const char *blit_vp =
+	"VERT                                        \n"
+	"DCL IN[0]                                   \n"
+	"DCL IN[1]                                   \n"
+	"DCL OUT[0], TEXCOORD                        \n"
+	"DCL OUT[1], POSITION                        \n"
+	"  0: MOV OUT[0], IN[0]                      \n"
+	"  0: MOV OUT[1], IN[1]                      \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,
+	};
+
+	tgsi_text_translate(src, toks, ARRAY_SIZE(toks));
+
+	if (frag)
+		return pctx->create_fs_state(pctx, &cso);
+	else
+		return pctx->create_vs_state(pctx, &cso);
+}
+
+void fd_prog_init(struct pipe_context *pctx)
+{
+	struct fd_context *ctx = fd_context(pctx);
+
+	pctx->bind_fs_state = fd_fp_state_bind;
+	pctx->bind_vs_state = fd_vp_state_bind;
+
+	// XXX for now, let a2xx keep it's own hand-rolled shaders
+	// for solid and blit progs:
+	if (ctx->screen->gpu_id < 300)
+		return;
+
+	ctx->solid_prog.fp = assemble_tgsi(pctx, solid_fp, true);
+	ctx->solid_prog.vp = assemble_tgsi(pctx, solid_vp, false);
+	ctx->blit_prog.fp = assemble_tgsi(pctx, blit_fp, true);
+	ctx->blit_prog.vp = assemble_tgsi(pctx, blit_vp, false);
+}
+
+void fd_prog_fini(struct pipe_context *pctx)
+{
+	struct fd_context *ctx = fd_context(pctx);
+
+	pctx->delete_vs_state(pctx, ctx->solid_prog.vp);
+	pctx->delete_fs_state(pctx, ctx->solid_prog.fp);
+	pctx->delete_vs_state(pctx, ctx->blit_prog.vp);
+	pctx->delete_fs_state(pctx, ctx->blit_prog.fp);
+}