1 files changed, 58 insertions, 14 deletions

diff --git a/kms++/src/omap/omapframebuffer.cpp b/kms++/src/omap/omapframebuffer.cpp
index e1e2234..9997933 100644
--- a/kms++/src/omap/omapframebuffer.cpp
+++ b/kms++/src/omap/omapframebuffer.cpp
@@ -17,20 +17,24 @@ extern "C" {
 #include <omap_drmif.h>
 }
 
+#define __round_mask(x, y) ((__typeof__(x))((y)-1))
+#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
+#define PAGE_SIZE 4096
+
 using namespace std;
 
 namespace kms
 {
 
-OmapFramebuffer::OmapFramebuffer(OmapCard& card, uint32_t width, uint32_t height, const string& fourcc)
-	: OmapFramebuffer(card, width, height, FourCCToPixelFormat(fourcc))
+OmapFramebuffer::OmapFramebuffer(OmapCard& card, uint32_t width, uint32_t height, const string& fourcc, bool tiled)
+	: OmapFramebuffer(card, width, height, FourCCToPixelFormat(fourcc), tiled)
 {
 }
 
-OmapFramebuffer::OmapFramebuffer(OmapCard& card, uint32_t width, uint32_t height, PixelFormat format)
-	: MappedFramebuffer(card, width, height), m_omap_card(card), m_format(format)
+OmapFramebuffer::OmapFramebuffer(OmapCard& card, uint32_t width, uint32_t height, PixelFormat format, bool tiled)
+	:MappedFramebuffer(card, width, height), m_omap_card(card), m_format(format)
 {
-	Create();
+	Create(tiled);
 }
 
 OmapFramebuffer::~OmapFramebuffer()
@@ -38,7 +42,7 @@ OmapFramebuffer::~OmapFramebuffer()
 	Destroy();
 }
 
-void OmapFramebuffer::Create()
+void OmapFramebuffer::Create(bool tiled)
 {
 	const PixelFormatInfo& format_info = get_pixel_format_info(m_format);
 
@@ -50,13 +54,52 @@ void OmapFramebuffer::Create()
 
 		uint32_t flags = OMAP_BO_SCANOUT | OMAP_BO_WC;
 
-		uint32_t size = width() * height() * pi.bitspp / 8;
-
-		struct omap_bo* bo =  omap_bo_new(m_omap_card.dev(), size, flags);
-		if (!bo)
-			throw invalid_argument(string("omap_bo_new failed: ") + strerror(errno));
-
-		uint32_t stride = width() * pi.bitspp / 8;
+		struct omap_bo* bo;
+
+		uint32_t stride;
+
+		if (!tiled) {
+			stride = width() * pi.bitspp / 8;
+
+			uint32_t size = stride * height() / pi.ysub;
+
+			bo = omap_bo_new(m_omap_card.dev(), size, flags);
+			if (!bo)
+				throw invalid_argument(string("omap_bo_new failed: ") + strerror(errno));
+		} else {
+			unsigned bitspertiler;
+
+			switch (m_format) {
+			case PixelFormat::NV12:
+				bitspertiler = i == 0 ? 8 : 16; break;
+			case PixelFormat::YUYV:
+			case PixelFormat::UYVY:
+				bitspertiler = 32; break;
+			case PixelFormat::ARGB8888:
+			case PixelFormat::XRGB8888:
+				bitspertiler = 32; break;
+			case PixelFormat::RGB565:
+				bitspertiler = 16; break;
+			default:
+				throw invalid_argument("unimplemented format");
+			}
+
+			switch (bitspertiler) {
+			case 8: flags |= OMAP_BO_TILED_8; break;
+			case 16: flags |= OMAP_BO_TILED_16; break;
+			case 32: flags |= OMAP_BO_TILED_32; break;
+			default:
+				throw invalid_argument("bad bitspertiler");
+			}
+
+			uint32_t width_tiler = width() * pi.bitspp / bitspertiler;
+
+			bo = omap_bo_new_tiled(m_omap_card.dev(), width_tiler, height(), flags);
+			if (!bo)
+				throw invalid_argument(string("omap_bo_new_tiled failed: ") + strerror(errno));
+
+			stride = round_up(width() * pi.bitspp / 8, PAGE_SIZE);
+		}
 
 		plane.omap_bo = bo;
 		plane.handle = omap_bo_handle(bo);
@@ -67,7 +110,7 @@ void OmapFramebuffer::Create()
 		plane.prime_fd = -1;
 	}
 
-	/* create framebuffer object for the dumb-buffer */
+	/* create framebuffer object */
 	uint32_t bo_handles[4] = { m_planes[0].handle, m_planes[1].handle };
 	uint32_t pitches[4] = { m_planes[0].stride, m_planes[1].stride };
 	uint32_t offsets[4] = { m_planes[0].offset, m_planes[1].offset };
@@ -82,6 +125,7 @@ void OmapFramebuffer::Create()
 
 void OmapFramebuffer::Destroy()
 {
+	/* delete framebuffer */
 	drmModeRmFB(card().fd(), id());
 
 	for (uint i = 0; i < m_num_planes; ++i) {