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wip: attempting to do gp_display_frame and gp_screen_init in asm

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Edward R. Gonzalez
2025-08-07 10:54:05 -04:00
parent 046800b9d8
commit ebc6895c61
5 changed files with 82 additions and 40 deletions
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code/graphics_hello_psyq/hello_gpu.c
+47 -2
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@@ -4,17 +4,62 @@
#include "duffle/gp.h"
#include "hello_gpu.h"
#include "libgpu.h"
#include "libetc.h"
DoubleBuffer screen_buffer;
S16 active_screen_buffer;
void gp_screen_init_c11(void)
{
ResetGraph(0);
// First buffer area
SetDefDispEnv((DISPENV*)& screen_buffer.display[0], 0, 0, ScreenRes_X, ScreenRes_Y);
SetDefDrawEnv((DRAWENV*)& screen_buffer.draw [0], 0, ScreenRes_Y, ScreenRes_X, ScreenRes_Y);
// Second buffer rea
SetDefDispEnv((DISPENV*)& screen_buffer.display[1], 0, ScreenRes_Y, ScreenRes_X, ScreenRes_Y);
SetDefDrawEnv((DRAWENV*)& screen_buffer.draw [1], 0, 0, ScreenRes_X, ScreenRes_Y);
// Set the back/drawing buffer
screen_buffer.draw[0].enable_auto_clear = true;
screen_buffer.draw[1].enable_auto_clear = true;
// Set the background clear color
screen_buffer.draw[0].initial_bg_color = (RGB8){ .r = 63, .g = 0, .b = 127 };
screen_buffer.draw[1].initial_bg_color = (RGB8){ .r = 127, .g = 63, .b = 0 };
// Set the current initial buffer
active_screen_buffer = 0;
PutDispEnv((DISPENV*)& screen_buffer.display[active_screen_buffer]);
PutDrawEnv((DRAWENV*)& screen_buffer.draw [active_screen_buffer]);
// Initialize and setup the GTE geometry offsets
InitGeom();
SetGeomOffset(ScreenRes_CenterX, ScreenRes_CenterY);
SetGeomScreen(ScreenRes_CenterX);
// Enable display
SetDispMask(1);
}
void gp_display_frame_c11(void) {
DrawSync(0);
VSync(0);
PutDispEnv((DISPENV*)& screen_buffer.display[active_screen_buffer]);
PutDrawEnv((DRAWENV*)& screen_buffer.draw [active_screen_buffer]);
{
// TODO: Sort objects in ordering table
}
active_screen_buffer = !active_screen_buffer; // Swap current buffer
}
void render_c11(void) {
}
int main(void)
{
gp_screen_init();
// gp_screen_init();
gp_screen_init_c11();
while (1)
{
render_c11();
gp_display_frame_c11();
};
return 0;