st/xa: Solid fill (tested) and composite (yet untested)

Signed-off-by: Thomas Hellstrom <[email protected]>

1 files changed, 495 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/xa/xa_composite.c b/src/gallium/state_trackers/xa/xa_composite.c
new file mode 100644
index 00000000000..b30728423e8
--- /dev/null
+++ b/src/gallium/state_trackers/xa/xa_composite.c
@@ -0,0 +1,495 @@
+/**********************************************************
+ * 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>
+ * Thomas Hellstrom <thellstrom-at-vmware-dot-com>
+ */
+
+#include "xa_composite.h"
+#include "xa_context.h"
+#include "xa_priv.h"
+#include "cso_cache/cso_context.h"
+#include "util/u_sampler.h"
+#include "util/u_inlines.h"
+
+
+/*XXX also in Xrender.h but the including it here breaks compilition */
+#define XFixedToDouble(f)    (((double) (f)) / 65536.)
+
+struct xa_composite_blend {
+    enum xa_composite_op op : 8;
+
+    unsigned alpha_dst : 4;
+    unsigned alpha_src : 4;
+
+    unsigned rgb_src : 8;    /**< PIPE_BLENDFACTOR_x */
+    unsigned rgb_dst : 8;    /**< PIPE_BLENDFACTOR_x */
+};
+
+#define XA_BLEND_OP_OVER 3
+static const struct xa_composite_blend xa_blends[] = {
+    { xa_op_clear,
+      0, 0, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ZERO},
+    { xa_op_src,
+      0, 0, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ZERO},
+    { xa_op_dst,
+      0, 0, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ONE},
+    { xa_op_over,
+      0, 1, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_INV_SRC_ALPHA},
+    { xa_op_over_reverse,
+      1, 0, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_ONE},
+    { xa_op_in,
+      1, 0, PIPE_BLENDFACTOR_DST_ALPHA, PIPE_BLENDFACTOR_ZERO},
+    { xa_op_in_reverse,
+      0, 1, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_SRC_ALPHA},
+    { xa_op_out,
+      1, 0, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_ZERO},
+    { xa_op_out_reverse,
+      0, 1, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_INV_SRC_ALPHA},
+    { xa_op_atop,
+      1, 1, PIPE_BLENDFACTOR_DST_ALPHA, PIPE_BLENDFACTOR_INV_SRC_ALPHA},
+    { xa_op_atop_reverse,
+      1, 1, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_SRC_ALPHA},
+    { xa_op_xor,
+      1, 1, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_INV_SRC_ALPHA},
+    { xa_op_add,
+      0, 0, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ONE},
+};
+
+
+static boolean
+blend_for_op(struct xa_composite_blend *blend,
+	     enum xa_composite_op op,
+	     struct xa_picture *src_pic,
+	     struct xa_picture *mask_pic,
+	     struct xa_picture *dst_pic)
+{
+    const int num_blends =
+	sizeof(xa_blends)/sizeof(struct xa_composite_blend);
+    int i;
+    boolean supported = FALSE;
+
+    /*
+     * our default in case something goes wrong
+     */
+
+    *blend = xa_blends[XA_BLEND_OP_OVER];
+
+    for (i = 0; i < num_blends; ++i) {
+	if (xa_blends[i].op == op) {
+	    *blend = xa_blends[i];
+	    supported = TRUE;
+	}
+    }
+
+
+    /*
+     * If there's no dst alpha channel, adjust the blend op so that we'll treat
+     * it as always 1.
+     */
+
+    if (dst_pic &&
+	xa_format_a(xa_surface_format(dst_pic->srf)) == 0 &&
+	blend->alpha_dst) {
+	if (blend->rgb_src == PIPE_BLENDFACTOR_DST_ALPHA)
+	    blend->rgb_src = PIPE_BLENDFACTOR_ONE;
+	else if (blend->rgb_src == PIPE_BLENDFACTOR_INV_DST_ALPHA)
+	    blend->rgb_src = PIPE_BLENDFACTOR_ZERO;
+    }
+
+    /*
+     * If the source alpha is being used, then we should only be in a case where
+     * the source blend factor is 0, and the source blend value is the mask
+     * channels multiplied by the source picture's alpha.
+     */
+    if (mask_pic && mask_pic->component_alpha &&
+	xa_format_rgb(xa_surface_format(mask_pic->srf)) &&
+	blend->alpha_src) {
+	if (blend->rgb_dst == PIPE_BLENDFACTOR_SRC_ALPHA) {
+	    blend->rgb_dst = PIPE_BLENDFACTOR_SRC_COLOR;
+	} else if (blend->rgb_dst == PIPE_BLENDFACTOR_INV_SRC_ALPHA) {
+	    blend->rgb_dst = PIPE_BLENDFACTOR_INV_SRC_COLOR;
+	}
+    }
+
+    return supported;
+}
+
+
+static INLINE int
+xa_repeat_to_gallium(int mode)
+{
+    switch(mode) {
+    case xa_wrap_clamp_to_border:
+	return PIPE_TEX_WRAP_CLAMP_TO_BORDER;
+    case xa_wrap_repeat:
+	return PIPE_TEX_WRAP_REPEAT;
+    case xa_wrap_mirror_repeat:
+	return PIPE_TEX_WRAP_MIRROR_REPEAT;
+    case xa_wrap_clamp_to_edge:
+	return PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+    default:
+	break;
+    }
+    return PIPE_TEX_WRAP_REPEAT;
+}
+
+static INLINE boolean
+xa_filter_to_gallium(int xrender_filter, int *out_filter)
+{
+
+    switch (xrender_filter) {
+    case xa_filter_nearest:
+	*out_filter = PIPE_TEX_FILTER_NEAREST;
+	break;
+    case xa_filter_linear:
+	*out_filter = PIPE_TEX_FILTER_LINEAR;
+	break;
+    default:
+	*out_filter = PIPE_TEX_FILTER_NEAREST;
+	return FALSE;
+    }
+    return TRUE;
+}
+
+static int
+xa_is_filter_accelerated(struct xa_picture *pic)
+{
+    int filter;
+    if (pic && !xa_filter_to_gallium(pic->filter, &filter))
+	return 0;
+    return 1;
+}
+
+int
+xa_composite_is_accelerated(const struct xa_composite *comp)
+{
+    struct xa_composite_blend blend;
+    struct xa_picture *src_pic = comp->src;
+
+    if (!xa_is_filter_accelerated(src_pic) ||
+	!xa_is_filter_accelerated(comp->mask)) {
+	return 0;
+    }
+
+
+    if (src_pic->src_pict) {
+	if (src_pic->src_pict->type != xa_src_pict_solid_fill)
+	    return 0;
+    }
+
+    if (blend_for_op(&blend, comp->op, comp->src, comp->mask, comp->dst)) {
+	struct xa_picture *mask = comp->mask;
+	if (mask && mask->component_alpha &&
+	    xa_format_rgb(xa_surface_format(mask->srf))) {
+	    if (blend.alpha_src && blend.rgb_src != PIPE_BLENDFACTOR_ZERO) {
+		return 0;
+	    }
+	}
+
+	return 1;
+    }
+    return 0;
+}
+
+static void
+bind_composite_blend_state(struct xa_context *ctx,
+			   const struct xa_composite *comp)
+{
+    struct xa_composite_blend blend_opt;
+    struct pipe_blend_state blend;
+
+    blend_for_op(&blend_opt, comp->op, comp->src, comp->mask, comp->dst);
+
+    memset(&blend, 0, sizeof(struct pipe_blend_state));
+    blend.rt[0].blend_enable = 1;
+    blend.rt[0].colormask = PIPE_MASK_RGBA;
+
+    blend.rt[0].rgb_src_factor   = blend_opt.rgb_src;
+    blend.rt[0].alpha_src_factor = blend_opt.rgb_src;
+    blend.rt[0].rgb_dst_factor   = blend_opt.rgb_dst;
+    blend.rt[0].alpha_dst_factor = blend_opt.rgb_dst;
+
+    cso_set_blend(ctx->cso, &blend);
+}
+
+static unsigned int
+picture_format_fixups(struct xa_picture *src_pic,
+		      struct xa_picture *dst_pic,
+		      int mask)
+{
+    boolean set_alpha = FALSE;
+    boolean swizzle = FALSE;
+    unsigned ret = 0;
+    struct xa_surface *src = src_pic->srf;
+    enum xa_formats src_hw_format, src_pic_format;
+    enum xa_surface_type src_hw_type, src_pic_type;
+
+    src_hw_format = xa_surface_format(src);
+    src_pic_format = src_pic->pict_format;
+
+    if (src_hw_format == src_pic_format) {
+	if (src_pic->pict_format == xa_format_a8) {
+	    if (mask)
+		return FS_MASK_LUMINANCE;
+	    else if (dst_pic->pict_format != xa_format_a8) {
+
+		/*
+		 * if both dst and src are luminance then
+		 * we don't want to swizzle the alpha (X) of the
+		 * source into W component of the dst because
+		 * it will break our destination
+		 */
+		return FS_SRC_LUMINANCE;
+	    }
+	}
+	return 0;
+    }
+
+    src_hw_type = xa_format_type(src_hw_format);
+    src_pic_type = xa_format_type(src_pic_format);
+
+    swizzle = ((src_hw_type == xa_type_argb &&
+		src_pic_type == xa_type_abgr) ||
+	       ((src_hw_type == xa_type_abgr &&
+		 src_pic_type == xa_type_argb)));
+
+    if (!swizzle && (src_hw_type != src_pic_type))
+	return 0;
+
+    set_alpha = (xa_format_type_is_color(src_hw_type) &&
+		 xa_format_a(src_hw_type) == 0);
+
+    if (set_alpha)
+	ret |= mask ? FS_MASK_SET_ALPHA : FS_SRC_SET_ALPHA;
+    if (swizzle)
+	ret |= mask ? FS_MASK_SWIZZLE_RGB : FS_SRC_SWIZZLE_RGB;
+
+    return ret;
+}
+
+static void
+bind_shaders(struct xa_context *ctx, const struct xa_composite *comp)
+{
+    unsigned vs_traits = 0, fs_traits = 0;
+    struct xa_shader shader;
+    struct xa_picture *src_pic = comp->src;
+    struct xa_picture *mask_pic = comp->mask;
+    struct xa_picture *dst_pic = comp->dst;
+
+    ctx->has_solid_color = FALSE;
+
+    if (src_pic) {
+	if (src_pic->wrap == xa_wrap_clamp_to_border && src_pic->has_transform)
+	    fs_traits |= FS_SRC_REPEAT_NONE;
+
+	if (src_pic->src_pict) {
+	    if (src_pic->src_pict->type == xa_src_pict_solid_fill) {
+		fs_traits |= FS_SOLID_FILL;
+		vs_traits |= VS_SOLID_FILL;
+		xa_pixel_to_float4(src_pic->src_pict->solid_fill.color,
+				   ctx->solid_color);
+		ctx->has_solid_color = TRUE;
+	    }
+	} else {
+	    fs_traits |= FS_COMPOSITE;
+	    vs_traits |= VS_COMPOSITE;
+	}
+
+	fs_traits |= picture_format_fixups(src_pic, dst_pic, 0);
+    }
+
+    if (mask_pic) {
+	vs_traits |= VS_MASK;
+	fs_traits |= FS_MASK;
+	if (mask_pic->wrap == xa_wrap_clamp_to_border &&
+	    mask_pic->has_transform)
+	    fs_traits |= FS_MASK_REPEAT_NONE;
+
+	if (mask_pic->component_alpha) {
+	    struct xa_composite_blend blend;
+	    blend_for_op(&blend, comp->op, src_pic, mask_pic, NULL);
+	    if (blend.alpha_src) {
+		fs_traits |= FS_CA_SRCALPHA;
+	    } else
+		fs_traits |= FS_CA_FULL;
+	}
+
+	fs_traits |= picture_format_fixups(mask_pic, dst_pic, 1);
+    }
+
+    shader = xa_shaders_get(ctx->shaders, vs_traits, fs_traits);
+    cso_set_vertex_shader_handle(ctx->cso, shader.vs);
+    cso_set_fragment_shader_handle(ctx->cso, shader.fs);
+}
+
+static void
+bind_samplers(struct xa_context *ctx,
+	      const struct xa_composite *comp)
+{
+    struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS];
+    struct pipe_sampler_state src_sampler, mask_sampler;
+    struct pipe_sampler_view view_templ;
+    struct pipe_sampler_view *src_view;
+    struct pipe_context *pipe = ctx->pipe;
+    struct xa_picture *src_pic = comp->src;
+    struct xa_picture *mask_pic = comp->mask;
+
+    ctx->num_bound_samplers = 0;
+
+    memset(&src_sampler, 0, sizeof(struct pipe_sampler_state));
+    memset(&mask_sampler, 0, sizeof(struct pipe_sampler_state));
+
+    if (src_pic) {
+	if (ctx->has_solid_color) {
+	    samplers[0] = NULL;
+	    pipe_sampler_view_reference(&ctx->bound_sampler_views[0], NULL);
+	} else {
+	    unsigned src_wrap = xa_repeat_to_gallium(src_pic->wrap);
+	    int filter;
+
+	    (void) xa_filter_to_gallium(src_pic->filter, &filter);
+
+	    src_sampler.wrap_s = src_wrap;
+	    src_sampler.wrap_t = src_wrap;
+	    src_sampler.min_img_filter = filter;
+	    src_sampler.mag_img_filter = filter;
+	    src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
+	    src_sampler.normalized_coords = 1;
+	    samplers[0] = &src_sampler;
+	    ctx->num_bound_samplers = 1;
+	    u_sampler_view_default_template(&view_templ,
+					    src_pic->srf->tex,
+					    src_pic->srf->tex->format);
+	    src_view = pipe->create_sampler_view(pipe, src_pic->srf->tex,
+						 &view_templ);
+	    pipe_sampler_view_reference(&ctx->bound_sampler_views[0], NULL);
+	    ctx->bound_sampler_views[0] = src_view;
+	}
+    }
+
+    if (mask_pic) {
+	unsigned mask_wrap = xa_repeat_to_gallium(mask_pic->wrap);
+	int filter;
+
+	(void) xa_filter_to_gallium(mask_pic->filter, &filter);
+
+	mask_sampler.wrap_s = mask_wrap;
+	mask_sampler.wrap_t = mask_wrap;
+	mask_sampler.min_img_filter = filter;
+	mask_sampler.mag_img_filter = filter;
+	src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
+	mask_sampler.normalized_coords = 1;
+	samplers[1] = &mask_sampler;
+	ctx->num_bound_samplers = 2;
+	u_sampler_view_default_template(&view_templ,
+					mask_pic->srf->tex,
+					mask_pic->srf->tex->format);
+	src_view = pipe->create_sampler_view(pipe, mask_pic->srf->tex,
+					     &view_templ);
+	pipe_sampler_view_reference(&ctx->bound_sampler_views[1], NULL);
+	ctx->bound_sampler_views[1] = src_view;
+    }
+
+    cso_set_samplers(ctx->cso, ctx->num_bound_samplers,
+		     (const struct pipe_sampler_state **)samplers);
+    cso_set_fragment_sampler_views(ctx->cso, ctx->num_bound_samplers,
+				   ctx->bound_sampler_views);
+}
+
+int
+xa_composite_prepare(struct xa_context *ctx,
+		     const struct xa_composite *comp)
+{
+    struct xa_surface *dst_srf = comp->dst->srf;
+    int ret;
+
+    ret = xa_surface_psurf_create(ctx, dst_srf);
+    if (ret != XA_ERR_NONE)
+	return ret;
+
+    renderer_bind_destination(ctx, dst_srf->srf,
+			      dst_srf->srf->width,
+			      dst_srf->srf->height);
+
+    bind_composite_blend_state(ctx, comp);
+    bind_shaders(ctx, comp);
+    bind_samplers(ctx, comp);
+
+    if (ctx->num_bound_samplers == 0 ) { /* solid fill */
+	renderer_begin_solid(ctx);
+    } else {
+	renderer_begin_textures(ctx);
+    }
+
+    xa_surface_psurf_destroy(dst_srf);
+    return XA_ERR_NONE;
+}
+
+void xa_composite_rect(struct xa_context *ctx,
+		       int srcX, int srcY, int maskX, int maskY,
+		       int dstX, int dstY, int width, int height)
+{
+    if (ctx->num_bound_samplers == 0 ) { /* solid fill */
+	renderer_solid(ctx, dstX, dstY, dstX + width, dstY + height,
+		       ctx->solid_color);
+    } else {
+	const struct xa_composite *comp = ctx->comp;
+	int pos[6] = {srcX, srcY, maskX, maskY, dstX, dstY};
+	const float *src_matrix = NULL;
+	const float *mask_matrix = NULL;
+
+	if (comp->src->has_transform)
+	    src_matrix = comp->src->transform;
+	if (comp->mask->has_transform)
+	    mask_matrix = comp->mask->transform;
+
+	renderer_texture(ctx, pos, width, height,
+			 src_matrix, mask_matrix);
+    }
+}
+
+void
+xa_composite_done(struct xa_context *ctx)
+{
+    renderer_draw_flush(ctx);
+    ctx->pipe->flush(ctx->pipe, &ctx->last_fence);
+
+    ctx->comp = NULL;
+    ctx->has_solid_color = FALSE;
+    ctx->num_bound_samplers = 0;
+}
+
+static const struct xa_composite_allocation a = {
+    .xa_composite_size = sizeof(struct xa_composite),
+    .xa_picture_size = sizeof(struct xa_picture),
+    .xa_source_pict_size = sizeof(union xa_source_pict),
+};
+
+const struct xa_composite_allocation *
+xa_composite_allocation(void)
+{
+    return &a;
+}