Adds most of the toolsHEADmaster

1 files changed, 210 insertions, 0 deletions

diff --git a/v_windows/v/vlib/x/ttf/render_sokol_cpu.v b/v_windows/v/vlib/x/ttf/render_sokol_cpu.v
new file mode 100644
index 0000000..f0e60eb
--- /dev/null
+++ b/v_windows/v/vlib/x/ttf/render_sokol_cpu.v
@@ -0,0 +1,210 @@
+module ttf
+
+/**********************************************************************
+*
+* BMP render module utility functions
+*
+* Copyright (c) 2021 Dario Deledda. All rights reserved.
+* Use of this source code is governed by an MIT license
+* that can be found in the LICENSE file.
+*
+* Note:
+*
+* TODO:
+**********************************************************************/
+import math
+import gg
+import sokol.sgl
+
+pub struct TTF_render_Sokol {
+pub mut:
+	bmp &BitMap // Base bitmap render
+	// rendering fields
+	sg_img       C.sg_image // sokol image
+	scale_reduct f32 = 2.0 // scale of the cpu texture for filtering
+	device_dpi   int = 72 // device DPI
+}
+
+/******************************************************************************
+*
+* Render functions
+*
+******************************************************************************/
+pub fn (mut tf_skl TTF_render_Sokol) format_texture() {
+	tf_skl.bmp.format_texture()
+}
+
+pub fn (mut tf_skl TTF_render_Sokol) create_text(in_txt string, in_font_size f32) {
+	scale_reduct := tf_skl.scale_reduct
+	device_dpi := tf_skl.device_dpi
+	font_size := in_font_size //* scale_reduct
+
+	// Formula: (font_size * device dpi) / (72dpi * em_unit)
+	// scale := ((1.0  * devide_dpi )/ f32(72 * tf_skl.bmp.tf.units_per_em))* font_size
+	scale := f32(font_size * device_dpi) / f32(72 * tf_skl.bmp.tf.units_per_em)
+	// dprintln("Scale: $scale")
+
+	tf_skl.bmp.scale = scale * scale_reduct
+	w, h := tf_skl.bmp.get_bbox(in_txt)
+	tf_skl.bmp.width = int(w)
+	tf_skl.bmp.height = int((h + 8))
+	sz := tf_skl.bmp.width * tf_skl.bmp.height * tf_skl.bmp.bp
+
+	// RAM buffer
+	if sz > tf_skl.bmp.buf_size {
+		if sz > 0 {
+			unsafe { free(tf_skl.bmp.buf) }
+		}
+		dprintln('create_text Alloc: $sz bytes')
+		tf_skl.bmp.buf = unsafe { malloc_noscan(sz) }
+		tf_skl.bmp.buf_size = sz
+	}
+
+	tf_skl.bmp.init_filler()
+
+	// draw the text
+	mut y_base := int((tf_skl.bmp.tf.y_max - tf_skl.bmp.tf.y_min) * tf_skl.bmp.scale)
+	tf_skl.bmp.set_pos(0, y_base)
+	tf_skl.bmp.clear()
+	tf_skl.bmp.draw_text(in_txt)
+	tf_skl.format_texture()
+}
+
+pub fn (mut tf_skl TTF_render_Sokol) create_text_block(in_txt string, in_w int, in_h int, in_font_size f32) {
+	scale_reduct := tf_skl.scale_reduct
+	device_dpi := tf_skl.device_dpi
+	font_size := in_font_size //* scale_reduct
+	// Formula: (font_size * device dpi) / (72dpi * em_unit)
+	// scale := ((1.0  * devide_dpi )/ f32(72 * tf_skl.bmp.tf.units_per_em))* font_size
+	scale := f32(font_size * device_dpi) / f32(72 * tf_skl.bmp.tf.units_per_em)
+	// dprintln("Scale: $scale")
+
+	tf_skl.bmp.scale = scale * scale_reduct
+	w := in_w
+	h := in_h
+	tf_skl.bmp.width = int(w * scale_reduct + 0.5)
+	tf_skl.bmp.height = int((h + 2) * scale_reduct + 0.5)
+	sz := tf_skl.bmp.width * tf_skl.bmp.height * tf_skl.bmp.bp
+
+	// if true { return }
+
+	// RAM buffer
+	if sz > tf_skl.bmp.buf_size {
+		if sz > 0 {
+			unsafe { free(tf_skl.bmp.buf) }
+		}
+		dprintln('Alloc: $sz bytes')
+		tf_skl.bmp.buf = unsafe { malloc_noscan(sz) }
+		tf_skl.bmp.buf_size = sz
+	}
+
+	tf_skl.bmp.init_filler()
+
+	// draw the text
+	mut y_base := int((tf_skl.bmp.tf.y_max - tf_skl.bmp.tf.y_min) * tf_skl.bmp.scale)
+	tf_skl.bmp.set_pos(0, y_base)
+	tf_skl.bmp.clear()
+
+	tf_skl.bmp.draw_text_block(in_txt, x: 0, y: 0, w: w, h: h)
+	tf_skl.format_texture()
+}
+
+/******************************************************************************
+*
+* Sokol Render functions
+*
+******************************************************************************/
+pub fn (mut tf_skl TTF_render_Sokol) create_texture() {
+	w := tf_skl.bmp.width
+	h := tf_skl.bmp.height
+	sz := tf_skl.bmp.width * tf_skl.bmp.height * tf_skl.bmp.bp
+	mut img_desc := C.sg_image_desc{
+		width: w
+		height: h
+		num_mipmaps: 0
+		min_filter: .linear
+		mag_filter: .linear
+		// usage: .dynamic
+		wrap_u: .clamp_to_edge
+		wrap_v: .clamp_to_edge
+		label: &char(0)
+		d3d11_texture: 0
+	}
+	// comment for dynamic
+	img_desc.data.subimage[0][0] = C.sg_range{
+		ptr: tf_skl.bmp.buf
+		size: size_t(sz)
+	}
+
+	simg := C.sg_make_image(&img_desc)
+	// free(tf_skl.bmp.buf)  // DONT FREE IF Dynamic
+	tf_skl.sg_img = simg
+}
+
+pub fn (tf_skl TTF_render_Sokol) destroy_texture() {
+	C.sg_destroy_image(tf_skl.sg_img)
+}
+
+// Use only if usage: .dynamic
+pub fn (mut tf_skl TTF_render_Sokol) update_text_texture() {
+	sz := tf_skl.bmp.width * tf_skl.bmp.height * tf_skl.bmp.bp
+	mut tmp_sbc := C.sg_image_data{}
+	tmp_sbc.subimage[0][0] = C.sg_range{
+		ptr: tf_skl.bmp.buf
+		size: size_t(sz)
+	}
+	C.sg_update_image(tf_skl.sg_img, &tmp_sbc)
+}
+
+pub fn (tf_skl TTF_render_Sokol) draw_text_bmp(ctx &gg.Context, x f32, y f32) {
+	// width  := tf_skl.bmp.width  >> 1
+	// height := tf_skl.bmp.height >> 1
+	sgl.push_matrix()
+
+	width := tf_skl.bmp.width / (tf_skl.scale_reduct)
+	height := tf_skl.bmp.height / (tf_skl.scale_reduct)
+
+	u0 := f32(0.0)
+	v0 := f32(0.0)
+	u1 := f32(1.0)
+	v1 := f32(1.0)
+	x0 := f32(0)
+	y0 := f32(0)
+	x1 := f32(width) * ctx.scale
+	y1 := f32(height) * ctx.scale
+
+	ca := f32(math.cos(tf_skl.bmp.angle))
+	sa := f32(math.sin(tf_skl.bmp.angle))
+	m := [
+		f32(ca),
+		-sa,
+		0,
+		0,
+		sa,
+		ca,
+		0,
+		0,
+		0,
+		0,
+		1,
+		0,
+		x * ctx.scale,
+		y * ctx.scale,
+		0,
+		1,
+	]
+	sgl.mult_matrix(m)
+	//
+	sgl.load_pipeline(ctx.timage_pip)
+	sgl.enable_texture()
+	sgl.texture(tf_skl.sg_img)
+	sgl.begin_quads()
+	sgl.c4b(255, 255, 255, 255)
+	sgl.v2f_t2f(x0, y0, u0, v0)
+	sgl.v2f_t2f(x1, y0, u1, v0)
+	sgl.v2f_t2f(x1, y1, u1, v1)
+	sgl.v2f_t2f(x0, y1, u0, v1)
+	sgl.end()
+	sgl.disable_texture()
+	sgl.pop_matrix()
+}