[PATCH 08/11] pp/main queue: Add pp_run.c

[Lauri Kasanen]

Signed-off-by: Lauri Kasanen <cand at gmx.com>
---
 src/gallium/auxiliary/postprocess/pp_run.c |  153 ++++++++++++++++++++++++++++
 1 files changed, 153 insertions(+), 0 deletions(-)
 create mode 100644 src/gallium/auxiliary/postprocess/pp_run.c

diff --git a/src/gallium/auxiliary/postprocess/pp_run.c b/src/gallium/auxiliary/postprocess/pp_run.c
new file mode 100644
index 0000000..9a5ba03
--- /dev/null
+++ b/src/gallium/auxiliary/postprocess/pp_run.c
@@ -0,0 +1,153 @@
+/**************************************************************************
+ *
+ * Copyright 2011 Lauri Kasanen
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+#include "postprocess.h"
+
+#include "postprocess/pp_filters.h"
+#include "util/u_blit.h"
+#include "util/u_inlines.h"
+#include "util/u_sampler.h"
+
+void pp_run(struct pp_queue_t *ppq, struct pipe_resource *in,
+		struct pipe_resource *out, struct pipe_resource *indepth) {
+
+	if (in->width0 != ppq->p->framebuffer.width ||
+			in->height0 != ppq->p->framebuffer.height) {
+		pp_debug("Resizing the temp pp buffers\n");
+		pp_free_fbos(ppq);
+		pp_init_fbos(ppq, in->width0, in->height0, indepth);
+	}
+
+	if (in == out && ppq->n_filters == 1) {
+		// Make a copy of in to tmp[0] in this case.
+		unsigned int w = ppq->p->framebuffer.width;
+		unsigned int h = ppq->p->framebuffer.height;
+
+		util_blit_pixels(ppq->p->blitctx, in, 0, 0, 0,
+					w, h, 0, ppq->tmps[0],
+					0, 0, w, h, 0,
+					PIPE_TEX_MIPFILTER_NEAREST);
+
+		in = ppq->tmp[0];
+	}
+
+	switch (ppq->n_filters) {
+		case 1: // No temp buf
+			ppq->pp_queue[0](ppq, in, out, 0);
+		break;
+		case 2: // One temp buf
+
+			ppq->pp_queue[0](ppq, in, ppq->tmp[0], 0);
+			ppq->pp_queue[1](ppq, ppq->tmp[0], out, 1);
+
+		break;
+		default: // Two temp bufs
+			ppq->pp_queue[0](ppq, in, ppq->tmp[0], 0);
+			unsigned int i;
+
+			for (i = 1; i < (ppq->n_filters - 1); i++) {
+				if (i % 2 == 0) ppq->pp_queue[i](ppq,
+							ppq->tmp[1],
+							ppq->tmp[0], i);
+
+				else ppq->pp_queue[i](ppq, ppq->tmp[0],
+							ppq->tmp[1], i);
+			}
+
+			if (i % 2 == 0) ppq->pp_queue[i](ppq, ppq->tmp[1],
+								out, i);
+
+			else ppq->pp_queue[i](ppq, ppq->tmp[0], out, i);
+
+		break;
+	}
+}
+
+
+// Utility functions for the filters. You're not forced to use these if
+// your filter is more complicated.
+
+
+void pp_filter_setup_in(struct program *p, struct pipe_resource *in) {
+	struct pipe_sampler_view v_tmp;
+	u_sampler_view_default_template(&v_tmp, in, in->format);
+	p->view = p->pipe->create_sampler_view(p->pipe, in, &v_tmp);
+}
+
+void pp_filter_setup_out(struct program *p, struct pipe_resource *out) {
+	p->surf.format = out->format;
+	p->surf.usage = PIPE_BIND_RENDER_TARGET;
+
+	p->framebuffer.cbufs[0] = p->pipe->create_surface(p->pipe, out,
+								&p->surf);
+}
+
+void pp_filter_end_pass(struct program *p) {
+	pipe_surface_reference(&p->framebuffer.cbufs[0], NULL);
+	pipe_sampler_view_reference(&p->view, NULL);
+}
+
+// We need not care about geometry shaders. All we have is screen quads.
+void *pp_tgsi_to_state(struct pipe_context *pipe, const char *text, bool isvs,
+				const char *name) {
+	struct pipe_shader_state state;
+	struct tgsi_token tokens[PP_MAX_TOKENS];
+
+	if (tgsi_text_translate(text, tokens, Elements(tokens)) == FALSE) {
+		pp_debug("Failed to translate %s\n", name);
+		return NULL;
+	}
+
+	state.tokens = tokens;
+
+	if (isvs) return pipe->create_vs_state(pipe, &state);
+	else return pipe->create_fs_state(pipe, &state);
+}
+
+void pp_filter_misc_state(struct program *p) {
+	cso_set_blend(p->cso, &p->blend);
+	cso_set_depth_stencil_alpha(p->cso, &p->depthstencil);
+	cso_set_rasterizer(p->cso, &p->rasterizer);
+	cso_set_viewport(p->cso, &p->viewport);
+
+	cso_set_vertex_elements(p->cso, 2, p->velem);
+}
+
+void pp_filter_draw(struct program *p) {
+	util_draw_vertex_buffer(p->pipe, p->cso, p->vbuf, 0,
+				PIPE_PRIM_QUADS, 4, 2);
+	p->pipe->flush(p->pipe, NULL);
+}
+
+void pp_filter_set_fb(struct program *p) {
+	cso_set_framebuffer(p->cso, &p->framebuffer);
+}
+
+void pp_filter_set_clear_fb(struct program *p) {
+	cso_set_framebuffer(p->cso, &p->framebuffer);
+	p->pipe->clear(p->pipe, PIPE_CLEAR_COLOR, p->clear_color, 0, 0);
+}
-- 
1.7.2.1