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adjust default view transform

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This commit is contained in:
Zack Buhman 2025-07-16 22:40:02 -05:00
parent 25817f7780
commit 43cf90f55a
4 changed files with 46 additions and 16 deletions
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1
src/demo/demo.cpp
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@ -61,7 +61,6 @@ void main()
input::init(); input::init();
graphics::init(); graphics::init();
texture::init(); texture::init();
printf("texture init\n");
interrupt_init(); interrupt_init();
system.IML6NRM = istnrm::end_of_render_tsp system.IML6NRM = istnrm::end_of_render_tsp

32
src/demo/font.cpp
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@ -90,11 +90,11 @@ namespace font {
return offset; return offset;
} }
void face::draw_float(ta_parameter_writer& writer, int face::draw_float(ta_parameter_writer& writer,
const vec3& p, const vec3& p,
float num, float num,
uint32_t base_color, uint32_t base_color,
int length) const int length) const
{ {
char s[20]; char s[20];
int offset = format_float(s, num); int offset = format_float(s, num);
@ -104,6 +104,28 @@ namespace font {
x += hori_advance * (length - offset); x += hori_advance * (length - offset);
} }
draw_string(writer, {x, p.y, p.z}, s, base_color); draw_string(writer, {x, p.y, p.z}, s, base_color);
return length >= offset ? length : offset;
}
void face::draw_mat4(ta_parameter_writer& writer,
const vec3& p,
const mat4x4& mat,
uint32_t base_color,
int value_length) const
{
int len;
vec3 pos = p;
for (int row = 0; row < 4; row++) {
len = draw_float(writer, pos, mat[row][0], base_color, value_length);
pos.x += hori_advance * len;
len = draw_float(writer, pos, mat[row][1], base_color, value_length);
pos.x += hori_advance * len;
len = draw_float(writer, pos, mat[row][2], base_color, value_length);
pos.x += hori_advance * len;
len = draw_float(writer, pos, mat[row][3], base_color, value_length);
pos.x = p.x;
pos.y += height;
}
} }
const face ter_u12n = { const face ter_u12n = {

16
src/demo/font.hpp
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@ -37,11 +37,17 @@ namespace font {
} }
} }
void draw_float(ta_parameter_writer& writer, int draw_float(ta_parameter_writer& writer,
const vec3& p, const vec3& p,
float num, float num,
uint32_t base_color, uint32_t base_color,
int length = 0) const; int length = 0) const;
void draw_mat4(ta_parameter_writer& writer,
const vec3& p,
const mat4x4& mat,
uint32_t base_color,
int value_length) const;
}; };
extern const face ter_u12n; extern const face ter_u12n;

13
src/demo/graphics.cpp
View File

@ -95,14 +95,12 @@ namespace graphics {
void draw() void draw()
{ {
font::ter_u12n.global(writer); font::ter_u12n.global(writer);
font::ter_u12n.draw_glyph(writer, vec3(10, 10, 10), 'a', 0xffffffff); //font::ter_u12n.draw_mat4(writer, vec3(10, 22, 10), view_trans, 0xffffffff, 12);
font::ter_u12n.draw_float(writer, vec3(10, 22, 10), 1.234, 0xffffffff, 7);
font::ter_u12n.draw_float(writer, vec3(10, 34, 10), -50.234, 0xffffffff, 7);
writer.append<ta_global_parameter::end_of_list>() = writer.append<ta_global_parameter::end_of_list>() =
ta_global_parameter::end_of_list(para_control::para_type::end_of_list); ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
draw_axis(writer, view_trans); draw_axis(writer, view_trans * scale(0.5f));
b.draw(writer, view_trans * scale(0.05f)); b.draw(writer, view_trans * scale(0.05f));
@ -133,6 +131,8 @@ namespace graphics {
0xc5f7c5f7); 0xc5f7c5f7);
framebuffer::spg_set_mode_640x480_vga(); framebuffer::spg_set_mode_640x480_vga();
//framebuffer::spg_set_mode_720x480_vga();
//framebuffer::init(720, 480,
framebuffer::init(640, 480, framebuffer::init(640, 480,
texture_memory_alloc.framebuffer[0].start); texture_memory_alloc.framebuffer[0].start);
core_param_init(texture_memory_alloc.region_array.start, core_param_init(texture_memory_alloc.region_array.start,
@ -160,7 +160,10 @@ namespace graphics {
view_trans view_trans
= scale(vec3(s, s, 1)) = scale(vec3(s, s, 1))
* translate(vec3(0, 0, 10)) * translate(vec3(0, 0, 10))
* rotate_x(pi / 4)
* rotate_y(pi / 4)
* scale(vec3(-1, -1, 1)); * scale(vec3(-1, -1, 1));
view_trans = view_trans * translate(vec3(0, 0, -0.9));
} }
void view_transform() void view_transform()
@ -186,7 +189,7 @@ namespace graphics {
} }
last_a[port_ix] = a; last_a[port_ix] = a;
view_trans = view_trans * rotate_x(dx) * rotate_y(dy); //view_trans = view_trans * rotate_x(dx) * rotate_y(dy);
} }
} }
} }