gallium/targets: Break haiku state_tracker out to own directory

Ack'ed by Emil Velikov <[email protected]>

1 files changed, 169 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/hgl/hgl.c b/src/gallium/state_trackers/hgl/hgl.c
new file mode 100644
index 00000000000..1d6fa73f23f
--- /dev/null
+++ b/src/gallium/state_trackers/hgl/hgl.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright 2012-2013, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *      Artur Wyszynski, [email protected]
+ *      Alexander von Gluck IV, [email protected]
+ */
+
+
+#include "main/context.h"
+#include "main/framebuffer.h"
+#include "main/renderbuffer.h"
+#include "pipe/p_format.h"
+#include "util/u_atomic.h"
+#include "util/u_memory.h"
+
+#include "hgl_context.h"
+
+
+#ifdef DEBUG
+#   define TRACE(x...) printf("hgl:state_tracker: " x)
+#   define CALLED() TRACE("CALLED: %s\n", __PRETTY_FUNCTION__)
+#else
+#   define TRACE(x...)
+#   define CALLED()
+#endif
+#define ERROR(x...) printf("hgl:state_tracker: " x)
+
+
+static boolean
+hgl_st_framebuffer_flush_front(struct st_context_iface *stctx,
+	struct st_framebuffer_iface* stfb, enum st_attachment_type statt)
+{
+	CALLED();
+
+	struct hgl_context* context = (struct hgl_context*)stfb->st_manager_private;
+
+	if (!context) {
+		ERROR("%s: Couldn't obtain valid hgl_context!\n", __func__);
+		return FALSE;
+	}
+
+	#if 0
+	struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
+	pipe_mutex_lock(stwfb->fb->mutex);
+
+	struct pipe_resource* resource = textures[statt];
+	if (resource)
+		stw_framebuffer_present_locked(...);
+	#endif
+
+	return TRUE;
+}
+
+
+/**
+ * Called by the st manager to validate the framebuffer (allocate
+ * its resources).
+ */
+static boolean
+hgl_st_framebuffer_validate(struct st_context_iface *stctx,
+	struct st_framebuffer_iface *stfbi, const enum st_attachment_type *statts,
+	unsigned count, struct pipe_resource **out)
+{
+	CALLED();
+
+	if (!stfbi) {
+		ERROR("%s: Invalid st framebuffer interface!\n", __func__);
+		return FALSE;
+	}
+
+	struct hgl_context* context = (struct hgl_context*)stfbi->st_manager_private;
+
+	if (!context) {
+		ERROR("%s: Couldn't obtain valid hgl_context!\n", __func__);
+		return FALSE;
+	}
+
+	int32 width = 0;
+	int32 height = 0;
+	get_bitmap_size(context->bitmap, &width, &height);
+
+	struct pipe_resource templat;
+	memset(&templat, 0, sizeof(templat));
+	templat.target = PIPE_TEXTURE_RECT;
+	templat.width0 = width;
+	templat.height0 = height;
+	templat.depth0 = 1;
+	templat.array_size = 1;
+	templat.usage = PIPE_USAGE_DEFAULT;
+
+	if (context->stVisual && context->manager && context->manager->screen) {
+		TRACE("%s: Updating resources\n", __func__);
+		for (unsigned i = 0; i < count; i++) {
+			enum pipe_format format = PIPE_FORMAT_NONE;
+			unsigned bind = 0;
+	
+			switch(statts[i]) {
+				case ST_ATTACHMENT_FRONT_LEFT:
+				case ST_ATTACHMENT_BACK_LEFT:
+					format = context->stVisual->color_format;
+					bind = PIPE_BIND_DISPLAY_TARGET
+						| PIPE_BIND_RENDER_TARGET;
+					break;
+				case ST_ATTACHMENT_DEPTH_STENCIL:
+					format = context->stVisual->depth_stencil_format;
+					bind = PIPE_BIND_DEPTH_STENCIL;
+					break;
+				case ST_ATTACHMENT_ACCUM:
+					format = context->stVisual->accum_format;
+					bind = PIPE_BIND_RENDER_TARGET;
+					break;
+				default:
+					format = PIPE_FORMAT_NONE;
+					break;
+			}
+
+			if (format != PIPE_FORMAT_NONE) {
+				templat.format = format;
+				templat.bind = bind;
+
+				struct pipe_screen* screen = context->manager->screen;
+				context->textures[i] = screen->resource_create(screen, &templat);
+				out[i] = context->textures[i];
+			}
+		}
+	}
+
+	return TRUE;
+}
+
+
+/**
+ * Create new framebuffer
+ */
+struct hgl_buffer *
+hgl_create_st_framebuffer(struct hgl_context* context)
+{
+	CALLED();
+
+	struct hgl_buffer *buffer = CALLOC_STRUCT(hgl_buffer);
+
+	assert(context);
+	assert(context->stVisual);
+
+	if (buffer) {
+		// Copy context visual into framebuffer
+		memcpy(&buffer->visual, context->stVisual, sizeof(struct st_visual));
+
+		// calloc our st_framebuffer interface
+		buffer->stfbi = CALLOC_STRUCT(st_framebuffer_iface);
+		if (!buffer->stfbi) {
+			ERROR("%s: Couldn't calloc framebuffer!\n", __func__);
+			return NULL;
+		}
+
+		struct st_framebuffer_iface* stfbi = buffer->stfbi;
+		p_atomic_set(&stfbi->stamp, 1);
+		stfbi->flush_front = hgl_st_framebuffer_flush_front;
+		stfbi->validate = hgl_st_framebuffer_validate;
+		stfbi->st_manager_private = (void*)context;
+		stfbi->visual = &buffer->visual;
+
+		// TODO: Do we need linked list?
+	}
+
+   return buffer;
+}