gallium: rename 'state tracker' to 'frontend'

Acked-by: Eric Anholt <[email protected]>
Acked-by: Alyssa Rosenzweig <[email protected]>
Acked-by: Pierre-Eric Pelloux-Prayer <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4902>

1 files changed, 419 insertions, 0 deletions

diff --git a/src/gallium/frontends/xa/xa_context.c b/src/gallium/frontends/xa/xa_context.c
new file mode 100644
index 00000000000..a4630cf09ca
--- /dev/null
+++ b/src/gallium/frontends/xa/xa_context.c
@@ -0,0 +1,419 @@
+/**********************************************************
+ * 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_context.h"
+#include "xa_priv.h"
+#include "cso_cache/cso_context.h"
+#include "util/u_inlines.h"
+#include "util/u_rect.h"
+#include "util/u_surface.h"
+#include "pipe/p_context.h"
+
+XA_EXPORT void
+xa_context_flush(struct xa_context *ctx)
+{
+    if (ctx->last_fence) {
+        struct pipe_screen *screen = ctx->xa->screen;
+        screen->fence_reference(screen, &ctx->last_fence, NULL);
+    }
+    ctx->pipe->flush(ctx->pipe, &ctx->last_fence, 0);
+}
+
+XA_EXPORT struct xa_context *
+xa_context_default(struct xa_tracker *xa)
+{
+    return xa->default_ctx;
+}
+
+XA_EXPORT struct xa_context *
+xa_context_create(struct xa_tracker *xa)
+{
+    struct xa_context *ctx = calloc(1, sizeof(*ctx));
+
+    ctx->xa = xa;
+    ctx->pipe = xa->screen->context_create(xa->screen, NULL, 0);
+    ctx->cso = cso_create_context(ctx->pipe, 0);
+    ctx->shaders = xa_shaders_create(ctx);
+    renderer_init_state(ctx);
+
+    return ctx;
+}
+
+XA_EXPORT void
+xa_context_destroy(struct xa_context *r)
+{
+    struct pipe_resource **vsbuf = &r->vs_const_buffer;
+    struct pipe_resource **fsbuf = &r->fs_const_buffer;
+
+    if (*vsbuf)
+	pipe_resource_reference(vsbuf, NULL);
+
+    if (*fsbuf)
+	pipe_resource_reference(fsbuf, NULL);
+
+    if (r->shaders) {
+	xa_shaders_destroy(r->shaders);
+	r->shaders = NULL;
+    }
+
+    xa_ctx_sampler_views_destroy(r);
+    if (r->srf)
+        pipe_surface_reference(&r->srf, NULL);
+
+    if (r->cso) {
+	cso_destroy_context(r->cso);
+	r->cso = NULL;
+    }
+
+    r->pipe->destroy(r->pipe);
+    free(r);
+}
+
+XA_EXPORT int
+xa_surface_dma(struct xa_context *ctx,
+	       struct xa_surface *srf,
+	       void *data,
+	       unsigned int pitch,
+	       int to_surface, struct xa_box *boxes, unsigned int num_boxes)
+{
+    struct pipe_transfer *transfer;
+    void *map;
+    int w, h, i;
+    enum pipe_transfer_usage transfer_direction;
+    struct pipe_context *pipe = ctx->pipe;
+
+    transfer_direction = (to_surface ? PIPE_TRANSFER_WRITE :
+			  PIPE_TRANSFER_READ);
+
+    for (i = 0; i < num_boxes; ++i, ++boxes) {
+	w = boxes->x2 - boxes->x1;
+	h = boxes->y2 - boxes->y1;
+
+	map = pipe_transfer_map(pipe, srf->tex, 0, 0,
+                                transfer_direction, boxes->x1, boxes->y1,
+                                w, h, &transfer);
+	if (!map)
+	    return -XA_ERR_NORES;
+
+	if (to_surface) {
+	    util_copy_rect(map, srf->tex->format, transfer->stride,
+			   0, 0, w, h, data, pitch, boxes->x1, boxes->y1);
+	} else {
+	    util_copy_rect(data, srf->tex->format, pitch,
+			   boxes->x1, boxes->y1, w, h, map, transfer->stride, 0,
+			   0);
+	}
+	pipe->transfer_unmap(pipe, transfer);
+    }
+    return XA_ERR_NONE;
+}
+
+XA_EXPORT void *
+xa_surface_map(struct xa_context *ctx,
+	       struct xa_surface *srf, unsigned int usage)
+{
+    void *map;
+    unsigned int gallium_usage = 0;
+    struct pipe_context *pipe = ctx->pipe;
+
+    /*
+     * A surface may only have a single map.
+     */
+    if (srf->transfer)
+	return NULL;
+
+    if (usage & XA_MAP_READ)
+	gallium_usage |= PIPE_TRANSFER_READ;
+    if (usage & XA_MAP_WRITE)
+	gallium_usage |= PIPE_TRANSFER_WRITE;
+    if (usage & XA_MAP_MAP_DIRECTLY)
+	gallium_usage |= PIPE_TRANSFER_MAP_DIRECTLY;
+    if (usage & XA_MAP_UNSYNCHRONIZED)
+	gallium_usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
+    if (usage & XA_MAP_DONTBLOCK)
+	gallium_usage |= PIPE_TRANSFER_DONTBLOCK;
+    if (usage & XA_MAP_DISCARD_WHOLE_RESOURCE)
+	gallium_usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
+
+    if (!(gallium_usage & (PIPE_TRANSFER_READ_WRITE)))
+	return NULL;
+
+    map = pipe_transfer_map(pipe, srf->tex, 0, 0,
+                            gallium_usage, 0, 0,
+                            srf->tex->width0, srf->tex->height0,
+                            &srf->transfer);
+    if (!map)
+	return NULL;
+
+    srf->mapping_pipe = pipe;
+    return map;
+}
+
+XA_EXPORT void
+xa_surface_unmap(struct xa_surface *srf)
+{
+    if (srf->transfer) {
+	struct pipe_context *pipe = srf->mapping_pipe;
+
+	pipe->transfer_unmap(pipe, srf->transfer);
+	srf->transfer = NULL;
+    }
+}
+
+int
+xa_ctx_srf_create(struct xa_context *ctx, struct xa_surface *dst)
+{
+    struct pipe_screen *screen = ctx->pipe->screen;
+    struct pipe_surface srf_templ;
+
+    /*
+     * Cache surfaces unless we change render target
+     */
+    if (ctx->srf) {
+        if (ctx->srf->texture == dst->tex)
+            return XA_ERR_NONE;
+
+        pipe_surface_reference(&ctx->srf, NULL);
+    }
+
+    if (!screen->is_format_supported(screen,  dst->tex->format,
+				     PIPE_TEXTURE_2D, 0, 0,
+				     PIPE_BIND_RENDER_TARGET))
+	return -XA_ERR_INVAL;
+
+    u_surface_default_template(&srf_templ, dst->tex);
+    ctx->srf = ctx->pipe->create_surface(ctx->pipe, dst->tex, &srf_templ);
+    if (!ctx->srf)
+	return -XA_ERR_NORES;
+
+    return XA_ERR_NONE;
+}
+
+void
+xa_ctx_srf_destroy(struct xa_context *ctx)
+{
+    /*
+     * Cache surfaces unless we change render target.
+     * Final destruction on context destroy.
+     */
+}
+
+XA_EXPORT int
+xa_copy_prepare(struct xa_context *ctx,
+		struct xa_surface *dst, struct xa_surface *src)
+{
+    if (src == dst)
+	return -XA_ERR_INVAL;
+
+    if (src->tex->format != dst->tex->format) {
+	int ret = xa_ctx_srf_create(ctx, dst);
+	if (ret != XA_ERR_NONE)
+	    return ret;
+	renderer_copy_prepare(ctx, ctx->srf, src->tex,
+			      src->fdesc.xa_format,
+			      dst->fdesc.xa_format);
+	ctx->simple_copy = 0;
+    } else
+	ctx->simple_copy = 1;
+
+    ctx->src = src;
+    ctx->dst = dst;
+    xa_ctx_srf_destroy(ctx);
+
+    return 0;
+}
+
+XA_EXPORT void
+xa_copy(struct xa_context *ctx,
+	int dx, int dy, int sx, int sy, int width, int height)
+{
+    struct pipe_box src_box;
+
+    xa_scissor_update(ctx, dx, dy, dx + width, dy + height);
+
+    if (ctx->simple_copy) {
+	u_box_2d(sx, sy, width, height, &src_box);
+	ctx->pipe->resource_copy_region(ctx->pipe,
+					ctx->dst->tex, 0, dx, dy, 0,
+					ctx->src->tex,
+					0, &src_box);
+    } else
+	renderer_copy(ctx, dx, dy, sx, sy, width, height,
+		      (float) ctx->src->tex->width0,
+		      (float) ctx->src->tex->height0);
+}
+
+XA_EXPORT void
+xa_copy_done(struct xa_context *ctx)
+{
+    if (!ctx->simple_copy) {
+	renderer_draw_flush(ctx);
+    }
+}
+
+static void
+bind_solid_blend_state(struct xa_context *ctx)
+{
+    struct pipe_blend_state blend;
+
+    memset(&blend, 0, sizeof(struct pipe_blend_state));
+    blend.rt[0].blend_enable = 0;
+    blend.rt[0].colormask = PIPE_MASK_RGBA;
+
+    blend.rt[0].rgb_src_factor   = PIPE_BLENDFACTOR_ONE;
+    blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
+    blend.rt[0].rgb_dst_factor   = PIPE_BLENDFACTOR_ZERO;
+    blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
+
+    cso_set_blend(ctx->cso, &blend);
+}
+
+XA_EXPORT int
+xa_solid_prepare(struct xa_context *ctx, struct xa_surface *dst,
+		 uint32_t fg)
+{
+    unsigned vs_traits, fs_traits;
+    struct xa_shader shader;
+    int ret;
+
+    ret = xa_ctx_srf_create(ctx, dst);
+    if (ret != XA_ERR_NONE)
+	return ret;
+
+    if (ctx->srf->format == PIPE_FORMAT_L8_UNORM)
+	xa_pixel_to_float4_a8(fg, ctx->solid_color);
+    else
+	xa_pixel_to_float4(fg, ctx->solid_color);
+    ctx->has_solid_src = 1;
+
+    ctx->dst = dst;
+
+#if 0
+    debug_printf("Color Pixel=(%d, %d, %d, %d), RGBA=(%f, %f, %f, %f)\n",
+		 (fg >> 24) & 0xff, (fg >> 16) & 0xff,
+		 (fg >> 8) & 0xff,  (fg >> 0) & 0xff,
+		 exa->solid_color[0], exa->solid_color[1],
+		 exa->solid_color[2], exa->solid_color[3]);
+#endif
+
+    vs_traits = VS_SRC_SRC | VS_COMPOSITE;
+    fs_traits = FS_SRC_SRC | VS_COMPOSITE;
+
+    renderer_bind_destination(ctx, ctx->srf);
+    bind_solid_blend_state(ctx);
+    cso_set_samplers(ctx->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
+    cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 0, NULL);
+
+    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);
+
+    renderer_begin_solid(ctx);
+
+    xa_ctx_srf_destroy(ctx);
+    return XA_ERR_NONE;
+}
+
+XA_EXPORT void
+xa_solid(struct xa_context *ctx, int x, int y, int width, int height)
+{
+    xa_scissor_update(ctx, x, y, x + width, y + height);
+    renderer_solid(ctx, x, y, x + width, y + height);
+}
+
+XA_EXPORT void
+xa_solid_done(struct xa_context *ctx)
+{
+    renderer_draw_flush(ctx);
+    ctx->comp = NULL;
+    ctx->has_solid_src = FALSE;
+    ctx->num_bound_samplers = 0;
+}
+
+XA_EXPORT struct xa_fence *
+xa_fence_get(struct xa_context *ctx)
+{
+    struct xa_fence *fence = calloc(1, sizeof(*fence));
+    struct pipe_screen *screen = ctx->xa->screen;
+
+    if (!fence)
+	return NULL;
+
+    fence->xa = ctx->xa;
+
+    if (ctx->last_fence == NULL)
+	fence->pipe_fence = NULL;
+    else
+	screen->fence_reference(screen, &fence->pipe_fence, ctx->last_fence);
+
+    return fence;
+}
+
+XA_EXPORT int
+xa_fence_wait(struct xa_fence *fence, uint64_t timeout)
+{
+    if (!fence)
+	return XA_ERR_NONE;
+
+    if (fence->pipe_fence) {
+	struct pipe_screen *screen = fence->xa->screen;
+	boolean timed_out;
+
+	timed_out = !screen->fence_finish(screen, NULL, fence->pipe_fence, timeout);
+	if (timed_out)
+	    return -XA_ERR_BUSY;
+
+	screen->fence_reference(screen, &fence->pipe_fence, NULL);
+    }
+    return XA_ERR_NONE;
+}
+
+XA_EXPORT void
+xa_fence_destroy(struct xa_fence *fence)
+{
+    if (!fence)
+	return;
+
+    if (fence->pipe_fence) {
+	struct pipe_screen *screen = fence->xa->screen;
+
+	screen->fence_reference(screen, &fence->pipe_fence, NULL);
+    }
+
+    free(fence);
+}
+
+void
+xa_ctx_sampler_views_destroy(struct xa_context *ctx)
+{
+    int i;
+
+    for (i = 0; i < ctx->num_bound_samplers; ++i)
+	pipe_sampler_view_reference(&ctx->bound_sampler_views[i], NULL);
+    ctx->num_bound_samplers = 0;
+}