kms++util: split to subdirs

1 files changed, 154 insertions, 0 deletions

diff --git a/kms++util/src/drawing.cpp b/kms++util/src/drawing.cpp
new file mode 100644
index 0000000..a5377be
--- /dev/null
+++ b/kms++util/src/drawing.cpp
@@ -0,0 +1,154 @@
+
+#include <kms++/kms++.h>
+#include <kms++util/kms++util.h>
+
+using namespace std;
+
+namespace kms
+{
+void draw_rgb_pixel(IMappedFramebuffer& buf, unsigned x, unsigned y, RGB color)
+{
+	switch (buf.format()) {
+	case PixelFormat::XRGB8888:
+	case PixelFormat::ARGB8888:
+	{
+		uint32_t *p = (uint32_t*)(buf.map(0) + buf.stride(0) * y + x * 4);
+		*p = color.argb8888();
+		break;
+	}
+	case PixelFormat::XBGR8888:
+	case PixelFormat::ABGR8888:
+	{
+		uint32_t *p = (uint32_t*)(buf.map(0) + buf.stride(0) * y + x * 4);
+		*p = color.abgr8888();
+		break;
+	}
+	case PixelFormat::RGB565:
+	{
+		uint16_t *p = (uint16_t*)(buf.map(0) + buf.stride(0) * y + x * 2);
+		*p = color.rgb565();
+		break;
+	}
+	default:
+		throw std::invalid_argument("invalid pixelformat");
+	}
+}
+
+void draw_yuv422_macropixel(IMappedFramebuffer& buf, unsigned x, unsigned y, YUV yuv1, YUV yuv2)
+{
+	ASSERT((x & 1) == 0);
+
+	uint8_t *p = (uint8_t*)(buf.map(0) + buf.stride(0) * y + x * 2);
+
+	uint8_t y0 = yuv1.y;
+	uint8_t y1 = yuv2.y;
+	uint8_t u = (yuv1.u + yuv2.u) / 2;
+	uint8_t v = (yuv1.v + yuv2.v) / 2;
+
+	switch (buf.format()) {
+	case PixelFormat::UYVY:
+		p[0] = u;
+		p[1] = y0;
+		p[2] = v;
+		p[3] = y1;
+		break;
+
+	case PixelFormat::YUYV:
+		p[0] = y0;
+		p[1] = u;
+		p[2] = y1;
+		p[3] = v;
+		break;
+
+	case PixelFormat::YVYU:
+		p[0] = y0;
+		p[1] = v;
+		p[2] = y1;
+		p[3] = u;
+		break;
+
+	case PixelFormat::VYUY:
+		p[0] = v;
+		p[1] = y0;
+		p[2] = u;
+		p[3] = y1;
+		break;
+
+	default:
+		throw std::invalid_argument("invalid pixelformat");
+	}
+}
+
+void draw_yuv420_macropixel(IMappedFramebuffer& buf, unsigned x, unsigned y,
+				   YUV yuv1, YUV yuv2, YUV yuv3, YUV yuv4)
+{
+	ASSERT((x & 1) == 0);
+	ASSERT((y & 1) == 0);
+
+	uint8_t *py1 = (uint8_t*)(buf.map(0) + buf.stride(0) * (y + 0) + x);
+	uint8_t *py2 = (uint8_t*)(buf.map(0) + buf.stride(0) * (y + 1) + x);
+
+	uint8_t *puv = (uint8_t*)(buf.map(1) + buf.stride(1) * (y / 2) + x);
+
+	uint8_t y0 = yuv1.y;
+	uint8_t y1 = yuv2.y;
+	uint8_t y2 = yuv3.y;
+	uint8_t y3 = yuv4.y;
+	uint8_t u = (yuv1.u + yuv2.u + yuv3.u + yuv4.u) / 4;
+	uint8_t v = (yuv1.v + yuv2.v + yuv3.v + yuv4.v) / 4;
+
+	switch (buf.format()) {
+	case PixelFormat::NV12:
+		py1[0] = y0;
+		py1[1] = y1;
+		py2[0] = y2;
+		py2[1] = y3;
+		puv[0] = u;
+		puv[1] = v;
+		break;
+
+	case PixelFormat::NV21:
+		py1[0] = y0;
+		py1[1] = y1;
+		py2[0] = y2;
+		py2[1] = y3;
+		puv[0] = v;
+		puv[1] = u;
+		break;
+
+	default:
+		throw std::invalid_argument("invalid pixelformat");
+	}
+}
+
+void draw_rect(IMappedFramebuffer &fb, uint32_t x, uint32_t y, uint32_t w, uint32_t h, RGB color)
+{
+	for (unsigned i = x; i < x + w; ++i) {
+		for (unsigned j = y; j < y + h; ++j) {
+			draw_rgb_pixel(fb, i, j, color);
+		}
+	}
+}
+
+static void draw_char(IMappedFramebuffer& buf, uint32_t xpos, uint32_t ypos, char c, RGB color)
+{
+#include "font_8x8.h"
+
+	for (uint32_t y = 0; y < 8; y++) {
+		uint8_t bits = fontdata_8x8[8 * c + y];
+
+		for (uint32_t x = 0; x < 8; x++) {
+			bool bit = (bits >> (7 - x)) & 1;
+
+			draw_rgb_pixel(buf, xpos + x, ypos + y, bit ? color : RGB());
+		}
+	}
+}
+
+void draw_text(IMappedFramebuffer& buf, uint32_t x, uint32_t y, const string& str, RGB color)
+{
+	for(unsigned i = 0; i < str.size(); i++)
+		draw_char(buf, (x + 8 * i), y, str[i], color);
+}
+
+}