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DreamcastVideo2: rearrange transform_vertex

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This commit is contained in:
Zack Buhman 2024-12-28 10:15:08 -06:00
parent 014a0f5f7f
commit dc787f172b
1 changed files with 7 additions and 9 deletions
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16
example/DreamcastVideo2.java
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@ -76,11 +76,7 @@ class DreamcastVideo2 {
vtx[2].y = -0.5f;
}
public static void transform_vertex(Vec2 v, boolean end_of_strip) {
DreamcastVideo2.vt0.parameter_control_word = TAParameter.para_control__para_type__vertex_parameter;
if (end_of_strip)
DreamcastVideo2.vt0.parameter_control_word |= TAParameter.para_control__end_of_strip;
public static void transform_vertex(Vec2 v) {
float x0 = v.x * Math.cos(theta) - v.y * Math.sin(theta);
float y0 = v.x * Math.sin(theta) + v.y * Math.cos(theta);
float x = x0 * 240 + 320;
@ -88,7 +84,6 @@ class DreamcastVideo2 {
DreamcastVideo2.vt0.x = x;
DreamcastVideo2.vt0.y = y;
Memory.putSQ1(DreamcastVideo2.vt0, MemoryMap.ta_fifo_polygon_converter);
}
public static void transfer_scene() {
@ -97,7 +92,11 @@ class DreamcastVideo2 {
// vertex parameters
for (int i = 0; i < 3; i++) {
transform_vertex(vtx[i], (i == 2));
DreamcastVideo2.vt0.parameter_control_word = TAParameter.para_control__para_type__vertex_parameter;
if (i == 2)
DreamcastVideo2.vt0.parameter_control_word |= TAParameter.para_control__end_of_strip;
transform_vertex(vtx[i]);
Memory.putSQ1(DreamcastVideo2.vt0, MemoryMap.ta_fifo_polygon_converter);
}
// end of list
@ -106,6 +105,7 @@ class DreamcastVideo2 {
public static void main() {
Core.init();
Core.fb_init(framebuffer_width, framebuffer_height);
int ta_alloc =
TABits.ta_alloc_ctrl__opb_mode__increasing_addresses
@ -127,8 +127,6 @@ class DreamcastVideo2 {
int opb_size_total = opb_size[0].total();
int num_render_passes = opb_size.length;
Core.fb_init(framebuffer_width, framebuffer_height);
RegionArray.region_array(framebuffer_width / 32,
framebuffer_height / 32,
opb_size,