X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Ffrontends%2Fxa%2Fxa_tgsi.c;fp=src%2Fgallium%2Ffrontends%2Fxa%2Fxa_tgsi.c;h=83f6db128c3de852a71abd4f634d4f806fdf24dd;hb=d6287a94b697ffe12a4e576a38943cdf4e90cdb0;hp=0000000000000000000000000000000000000000;hpb=b408734e5e2fe1e1ef08080c4425ad8a7ed33579;p=mesa.git

diff --git a/src/gallium/frontends/xa/xa_tgsi.c b/src/gallium/frontends/xa/xa_tgsi.c
new file mode 100644
index 00000000000..83f6db128c3
--- /dev/null
+++ b/src/gallium/frontends/xa/xa_tgsi.c
@@ -0,0 +1,500 @@
+/**********************************************************
+ * Copyright 2009-2011 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, 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 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:
+ * Zack Rusin <zackr-at-vmware-dot-com>
+ */
+#include "xa_priv.h"
+
+#include "pipe/p_format.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "pipe/p_shader_tokens.h"
+
+#include "util/u_memory.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
+ * OUT[2]   = mask tex coord
+ * OUT[3]   = dst tex coord
+ */
+
+/* Fragment shader. Samplers are allocated when needed.
+ * SAMP[0]  = sampler for first texture (src or mask if src is solid)
+ * SAMP[1]  = sampler for second texture (mask or none)
+ * IN[0]    = first texture coordinates if present
+ * IN[1]    = second texture coordinates if present
+ * CONST[0] = Solid color (src if src solid or mask if mask solid
+ *            or src in mask if both solid).
+ *
+ * OUT[0] = color
+ */
+
+static void
+print_fs_traits(int fs_traits)
+{
+    const char *strings[] = {
+	"FS_COMPOSITE",		/* = 1 << 0, */
+	"FS_MASK",		/* = 1 << 1, */
+	"FS_SRC_SRC",	        /* = 1 << 2, */
+	"FS_MASK_SRC",	        /* = 1 << 3, */
+	"FS_YUV",	        /* = 1 << 4, */
+	"FS_SRC_REPEAT_NONE",	/* = 1 << 5, */
+	"FS_MASK_REPEAT_NONE",	/* = 1 << 6, */
+	"FS_SRC_SWIZZLE_RGB",	/* = 1 << 7, */
+	"FS_MASK_SWIZZLE_RGB",	/* = 1 << 8, */
+	"FS_SRC_SET_ALPHA",	/* = 1 << 9, */
+	"FS_MASK_SET_ALPHA",	/* = 1 << 10, */
+	"FS_SRC_LUMINANCE",	/* = 1 << 11, */
+	"FS_MASK_LUMINANCE",	/* = 1 << 12, */
+	"FS_DST_LUMINANCE",     /* = 1 << 13, */
+        "FS_CA",                /* = 1 << 14, */
+    };
+    int i, k;
+
+    debug_printf("%s: ", __func__);
+
+    for (i = 0, k = 1; k < (1 << 16); i++, k <<= 1) {
+	if (fs_traits & k)
+	    debug_printf("%s, ", strings[i]);
+    }
+
+    debug_printf("\n");
+}
+
+struct xa_shaders {
+    struct xa_context *r;
+
+    struct cso_hash vs_hash;
+    struct cso_hash fs_hash;
+};
+
+static inline void
+src_in_mask(struct ureg_program *ureg,
+	    struct ureg_dst dst,
+	    struct ureg_src src,
+	    struct ureg_src mask,
+	    unsigned mask_luminance, boolean component_alpha)
+{
+    if (mask_luminance)
+        if (component_alpha) {
+            ureg_MOV(ureg, dst, src);
+            ureg_MUL(ureg, ureg_writemask(dst, TGSI_WRITEMASK_W),
+                     src, ureg_scalar(mask, TGSI_SWIZZLE_X));
+        } else {
+            ureg_MUL(ureg, dst, src, ureg_scalar(mask, TGSI_SWIZZLE_X));
+        }
+    else if (!component_alpha)
+        ureg_MUL(ureg, dst, src, ureg_scalar(mask, TGSI_SWIZZLE_W));
+    else
+        ureg_MUL(ureg, dst, src, mask);
+}
+
+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_MAD(ureg, tmp, coords, const0, const1);
+    ret = ureg_src(tmp);
+    ureg_release_temporary(ureg, tmp);
+    return ret;
+}
+
+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_composite = (vs_traits & VS_COMPOSITE) != 0;
+    boolean has_mask = (vs_traits & VS_MASK) != 0;
+    boolean is_yuv = (vs_traits & VS_YUV) != 0;
+    boolean is_src_src = (vs_traits & VS_SRC_SRC) != 0;
+    boolean is_mask_src = (vs_traits & VS_MASK_SRC) != 0;
+    unsigned input_slot = 0;
+
+    ureg = ureg_create(PIPE_SHADER_VERTEX);
+    if (ureg == NULL)
+	return 0;
+
+    const0 = ureg_DECL_constant(ureg, 0);
+    const1 = ureg_DECL_constant(ureg, 1);
+
+    /* it has to be either a fill or a composite op */
+    src = ureg_DECL_vs_input(ureg, input_slot++);
+    dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0);
+    src = vs_normalize_coords(ureg, src, const0, const1);
+    ureg_MOV(ureg, dst, src);
+
+    if (is_yuv) {
+	src = ureg_DECL_vs_input(ureg, input_slot++);
+	dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_GENERIC, 0);
+	ureg_MOV(ureg, dst, src);
+    }
+
+    if (is_composite) {
+        if (!is_src_src || (has_mask && !is_mask_src)) {
+            src = ureg_DECL_vs_input(ureg, input_slot++);
+            dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_GENERIC, 0);
+            ureg_MOV(ureg, dst, src);
+        }
+
+        if (!is_src_src && (has_mask && !is_mask_src)) {
+            src = ureg_DECL_vs_input(ureg, input_slot++);
+            dst = ureg_DECL_output(ureg, TGSI_SEMANTIC_GENERIC, 1);
+            ureg_MOV(ureg, dst, src);
+        }
+    }
+
+    ureg_END(ureg);
+
+    return ureg_create_shader_and_destroy(ureg, pipe);
+}
+
+static void *
+create_yuv_shader(struct pipe_context *pipe, struct ureg_program *ureg)
+{
+    struct ureg_src y_sampler, u_sampler, v_sampler;
+    struct ureg_src pos;
+    struct ureg_src matrow0, matrow1, matrow2, matrow3;
+    struct ureg_dst y, u, v, rgb;
+    struct ureg_dst out = ureg_DECL_output(ureg,
+					   TGSI_SEMANTIC_COLOR,
+					   0);
+
+    pos = ureg_DECL_fs_input(ureg,
+			     TGSI_SEMANTIC_GENERIC, 0,
+			     TGSI_INTERPOLATE_PERSPECTIVE);
+
+    rgb = ureg_DECL_temporary(ureg);
+    y = ureg_DECL_temporary(ureg);
+    u = ureg_DECL_temporary(ureg);
+    v = ureg_DECL_temporary(ureg);
+
+    y_sampler = ureg_DECL_sampler(ureg, 0);
+    u_sampler = ureg_DECL_sampler(ureg, 1);
+    v_sampler = ureg_DECL_sampler(ureg, 2);
+
+    ureg_DECL_sampler_view(ureg, 0, TGSI_TEXTURE_2D,
+                           TGSI_RETURN_TYPE_FLOAT, TGSI_RETURN_TYPE_FLOAT,
+                           TGSI_RETURN_TYPE_FLOAT, TGSI_RETURN_TYPE_FLOAT);
+    ureg_DECL_sampler_view(ureg, 1, TGSI_TEXTURE_2D,
+                           TGSI_RETURN_TYPE_FLOAT, TGSI_RETURN_TYPE_FLOAT,
+                           TGSI_RETURN_TYPE_FLOAT, TGSI_RETURN_TYPE_FLOAT);
+    ureg_DECL_sampler_view(ureg, 2, TGSI_TEXTURE_2D,
+                           TGSI_RETURN_TYPE_FLOAT, TGSI_RETURN_TYPE_FLOAT,
+                           TGSI_RETURN_TYPE_FLOAT, TGSI_RETURN_TYPE_FLOAT);
+
+    matrow0 = ureg_DECL_constant(ureg, 0);
+    matrow1 = ureg_DECL_constant(ureg, 1);
+    matrow2 = ureg_DECL_constant(ureg, 2);
+    matrow3 = ureg_DECL_constant(ureg, 3);
+
+    ureg_TEX(ureg, y, TGSI_TEXTURE_2D, pos, y_sampler);
+    ureg_TEX(ureg, u, TGSI_TEXTURE_2D, pos, u_sampler);
+    ureg_TEX(ureg, v, TGSI_TEXTURE_2D, pos, v_sampler);
+
+    ureg_MOV(ureg, rgb, matrow3);
+    ureg_MAD(ureg, rgb,
+	     ureg_scalar(ureg_src(y), TGSI_SWIZZLE_X), matrow0, ureg_src(rgb));
+    ureg_MAD(ureg, rgb,
+	     ureg_scalar(ureg_src(u), TGSI_SWIZZLE_X), matrow1, ureg_src(rgb));
+    ureg_MAD(ureg, rgb,
+	     ureg_scalar(ureg_src(v), TGSI_SWIZZLE_X), matrow2, ureg_src(rgb));
+
+    ureg_MOV(ureg, out, ureg_src(rgb));
+
+    ureg_release_temporary(ureg, rgb);
+    ureg_release_temporary(ureg, y);
+    ureg_release_temporary(ureg, u);
+    ureg_release_temporary(ureg, v);
+
+    ureg_END(ureg);
+
+    return ureg_create_shader_and_destroy(ureg, pipe);
+}
+
+static inline void
+xrender_tex(struct ureg_program *ureg,
+	    struct ureg_dst dst,
+	    struct ureg_src coords,
+	    struct ureg_src sampler,
+	    const struct ureg_src *imm0,
+	    boolean repeat_none, boolean swizzle, boolean set_alpha)
+{
+    if (repeat_none) {
+	struct ureg_dst tmp0 = ureg_DECL_temporary(ureg);
+	struct ureg_dst tmp1 = ureg_DECL_temporary(ureg);
+
+	ureg_SGT(ureg, tmp1, ureg_swizzle(coords,
+					  TGSI_SWIZZLE_X,
+					  TGSI_SWIZZLE_Y,
+					  TGSI_SWIZZLE_X,
+					  TGSI_SWIZZLE_Y), ureg_scalar(*imm0,
+								       TGSI_SWIZZLE_X));
+	ureg_SLT(ureg, tmp0,
+		 ureg_swizzle(coords, TGSI_SWIZZLE_X, TGSI_SWIZZLE_Y,
+			      TGSI_SWIZZLE_X, TGSI_SWIZZLE_Y), ureg_scalar(*imm0,
+									   TGSI_SWIZZLE_W));
+	ureg_MIN(ureg, tmp0, ureg_src(tmp0), ureg_src(tmp1));
+	ureg_MIN(ureg, tmp0, ureg_scalar(ureg_src(tmp0), TGSI_SWIZZLE_X),
+		 ureg_scalar(ureg_src(tmp0), TGSI_SWIZZLE_Y));
+	ureg_TEX(ureg, tmp1, TGSI_TEXTURE_2D, coords, sampler);
+	if (swizzle)
+	    ureg_MOV(ureg, tmp1, ureg_swizzle(ureg_src(tmp1),
+					      TGSI_SWIZZLE_Z,
+					      TGSI_SWIZZLE_Y, TGSI_SWIZZLE_X,
+					      TGSI_SWIZZLE_W));
+	if (set_alpha)
+	    ureg_MOV(ureg,
+		     ureg_writemask(tmp1, TGSI_WRITEMASK_W),
+		     ureg_scalar(*imm0, TGSI_SWIZZLE_W));
+	ureg_MUL(ureg, dst, ureg_src(tmp1), ureg_src(tmp0));
+	ureg_release_temporary(ureg, tmp0);
+	ureg_release_temporary(ureg, tmp1);
+    } else {
+	if (swizzle) {
+	    struct ureg_dst tmp = ureg_DECL_temporary(ureg);
+
+	    ureg_TEX(ureg, tmp, TGSI_TEXTURE_2D, coords, sampler);
+	    ureg_MOV(ureg, dst, ureg_swizzle(ureg_src(tmp),
+					     TGSI_SWIZZLE_Z,
+					     TGSI_SWIZZLE_Y, TGSI_SWIZZLE_X,
+					     TGSI_SWIZZLE_W));
+	    ureg_release_temporary(ureg, tmp);
+	} else {
+	    ureg_TEX(ureg, dst, TGSI_TEXTURE_2D, coords, sampler);
+	}
+	if (set_alpha)
+	    ureg_MOV(ureg,
+		     ureg_writemask(dst, TGSI_WRITEMASK_W),
+		     ureg_scalar(*imm0, TGSI_SWIZZLE_W));
+    }
+}
+
+static void
+read_input(struct ureg_program *ureg,
+           struct ureg_dst dst,
+           const struct ureg_src *imm0,
+           boolean repeat_none, boolean swizzle, boolean set_alpha,
+           boolean is_src, unsigned *cur_constant, unsigned *cur_sampler)
+{
+    struct ureg_src input, sampler;
+
+    if (is_src) {
+        input = ureg_DECL_constant(ureg, (*cur_constant)++);
+        ureg_MOV(ureg, dst, input);
+    } else {
+        sampler = ureg_DECL_sampler(ureg, *cur_sampler);
+        ureg_DECL_sampler_view(ureg, *cur_sampler, TGSI_TEXTURE_2D,
+                               TGSI_RETURN_TYPE_FLOAT, TGSI_RETURN_TYPE_FLOAT,
+                               TGSI_RETURN_TYPE_FLOAT, TGSI_RETURN_TYPE_FLOAT);
+        input = ureg_DECL_fs_input(ureg,
+                                   TGSI_SEMANTIC_GENERIC, (*cur_sampler)++,
+                                   TGSI_INTERPOLATE_PERSPECTIVE);
+        xrender_tex(ureg, dst, input, sampler, imm0,
+                    repeat_none, swizzle, set_alpha);
+    }
+}
+
+static void *
+create_fs(struct pipe_context *pipe, unsigned fs_traits)
+{
+    struct ureg_program *ureg;
+    struct ureg_dst src, mask;
+    struct ureg_dst out;
+    struct ureg_src imm0 = { 0 };
+    unsigned has_mask = (fs_traits & FS_MASK) != 0;
+    unsigned is_yuv = (fs_traits & FS_YUV) != 0;
+    unsigned src_repeat_none = (fs_traits & FS_SRC_REPEAT_NONE) != 0;
+    unsigned mask_repeat_none = (fs_traits & FS_MASK_REPEAT_NONE) != 0;
+    unsigned src_swizzle = (fs_traits & FS_SRC_SWIZZLE_RGB) != 0;
+    unsigned mask_swizzle = (fs_traits & FS_MASK_SWIZZLE_RGB) != 0;
+    unsigned src_set_alpha = (fs_traits & FS_SRC_SET_ALPHA) != 0;
+    unsigned mask_set_alpha = (fs_traits & FS_MASK_SET_ALPHA) != 0;
+    unsigned src_luminance = (fs_traits & FS_SRC_LUMINANCE) != 0;
+    unsigned mask_luminance = (fs_traits & FS_MASK_LUMINANCE) != 0;
+    unsigned dst_luminance = (fs_traits & FS_DST_LUMINANCE) != 0;
+    unsigned is_src_src = (fs_traits & FS_SRC_SRC) != 0;
+    unsigned is_mask_src = (fs_traits & FS_MASK_SRC) != 0;
+    boolean component_alpha = (fs_traits & FS_CA) != 0;
+    unsigned cur_sampler = 0;
+    unsigned cur_constant = 0;
+
+#if 0
+    print_fs_traits(fs_traits);
+#else
+    (void)print_fs_traits;
+#endif
+
+    ureg = ureg_create(PIPE_SHADER_FRAGMENT);
+    if (ureg == NULL)
+	return 0;
+
+    if (is_yuv)
+       return create_yuv_shader(pipe, ureg);
+
+    out = ureg_DECL_output(ureg, TGSI_SEMANTIC_COLOR, 0);
+
+    if (src_repeat_none || mask_repeat_none ||
+	src_set_alpha || mask_set_alpha || src_luminance) {
+	imm0 = ureg_imm4f(ureg, 0, 0, 0, 1);
+    }
+
+    src = (has_mask || src_luminance || dst_luminance) ?
+        ureg_DECL_temporary(ureg) : out;
+
+    read_input(ureg, src, &imm0, src_repeat_none, src_swizzle,
+               src_set_alpha, is_src_src, &cur_constant, &cur_sampler);
+
+    if (src_luminance) {
+	ureg_MOV(ureg, src, ureg_scalar(ureg_src(src), TGSI_SWIZZLE_X));
+	ureg_MOV(ureg, ureg_writemask(src, TGSI_WRITEMASK_XYZ),
+		 ureg_scalar(imm0, TGSI_SWIZZLE_X));
+	if (!has_mask && !dst_luminance)
+	    ureg_MOV(ureg, out, ureg_src(src));
+    }
+
+    if (has_mask) {
+	mask = ureg_DECL_temporary(ureg);
+        read_input(ureg, mask, &imm0, mask_repeat_none,
+                   mask_swizzle, mask_set_alpha, is_mask_src, &cur_constant,
+                   &cur_sampler);
+
+	src_in_mask(ureg, (dst_luminance) ? src : out, ureg_src(src),
+		    ureg_src(mask), mask_luminance, component_alpha);
+
+	ureg_release_temporary(ureg, mask);
+    }
+
+    if (dst_luminance) {
+	/*
+	 * Make sure the alpha channel goes into the output L8 surface.
+	 */
+	ureg_MOV(ureg, out, ureg_scalar(ureg_src(src), TGSI_SWIZZLE_W));
+    }
+
+    ureg_END(ureg);
+
+    return ureg_create_shader_and_destroy(ureg, pipe);
+}
+
+struct xa_shaders *
+xa_shaders_create(struct xa_context *r)
+{
+    struct xa_shaders *sc = CALLOC_STRUCT(xa_shaders);
+
+    sc->r = r;
+    cso_hash_init(&sc->vs_hash);
+    cso_hash_init(&sc->fs_hash);
+
+    return sc;
+}
+
+static void
+cache_destroy(struct pipe_context *pipe,
+	      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) {
+	    pipe->delete_fs_state(pipe, shader);
+	} else if (processor == PIPE_SHADER_VERTEX) {
+	    pipe->delete_vs_state(pipe, shader);
+	}
+	iter = cso_hash_erase(hash, iter);
+    }
+    cso_hash_deinit(hash);
+}
+
+void
+xa_shaders_destroy(struct xa_shaders *sc)
+{
+    cache_destroy(sc->r->pipe, &sc->vs_hash, PIPE_SHADER_VERTEX);
+    cache_destroy(sc->r->pipe, &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 xa_shader
+xa_shaders_get(struct xa_shaders *sc, unsigned vs_traits, unsigned fs_traits)
+{
+    struct xa_shader shader = { NULL, NULL };
+    void *vs, *fs;
+
+    vs = shader_from_cache(sc->r->pipe, PIPE_SHADER_VERTEX,
+			   &sc->vs_hash, vs_traits);
+    fs = shader_from_cache(sc->r->pipe, 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;
+}