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https://opencores.org/ocsvn/orsoc_graphics_accelerator/orsoc_graphics_accelerator/trunk
Subversion Repositories orsoc_graphics_accelerator
[/] [orsoc_graphics_accelerator/] [trunk/] [sw/] [examples/] [bare/] [demo.c] - Rev 7
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#include "orgfx_plus.h" #include "orgfx_3d.h" #include "orgfx.h" #include "orgfx_bitmap_font.h" #include <math.h> #include "cube.obj.h" #include "humanoid_tri.obj.h" #include "Bahamut_cc.png.h" #include "franklin_font.h" // State defines enum { STATE_ORSOC_SPLASH = 0, STATE_GEOMETRY, STATE_FILLMODES, STATE_COLORKEY, STATE_3D, LAST_STATE }; // Color defines #define C_RED 0xf800 #define C_WHITE 0xffff #define C_BLACK 0x0000 #define C_BLUE 0x003f #define C_GREEN 0x07c0 int main(void) { // Initialize screen, with double buffering int screen = orgfxplus_init(640, 480, 16, 1, 1); orgfx_enable_cliprect(1); // Initialize bahamut_sprite int bahamut_sprite = init_Bahamut_cc_sprite(); // Initialize franklin_font orgfx_bitmap_font franklin_font = init_franklin_font(2, 16); // Initialize mesh orgfx_mesh mesh = init_humanoid_tri_mesh(); int state = STATE_ORSOC_SPLASH; // int state = STATE_3D; int stateTimer = 0; const int stateTimerMax = 20; int i; orgfxplus_fill(0,0,640*FIXEDW,480*FIXEDW,C_WHITE); orgfxplus_flip(); float rad = 0; while(1) { // Clear screen orgfxplus_fill(0,0,640*FIXEDW,480*FIXEDW,C_WHITE); for(i = 0; i < 1500000; ++i); orgfxplus_colorkey(0xf81f, 1); // State specific logic switch(state) { case STATE_ORSOC_SPLASH: { // Add a logo orgfx_put_bitmap_text(&franklin_font, 50*FIXEDW, 300*FIXEDW, L"ORSOC Graphics Accelerator Demo"); for(i = 0; i < 500000; ++i); orgfx_put_bitmap_text(&franklin_font, 50*FIXEDW, 340*FIXEDW, L"Per Lenander & Anton Fosselius, 2012"); break; } case STATE_GEOMETRY: { orgfxplus_fill(50*FIXEDW, 50*FIXEDW, 150*FIXEDW, 150*FIXEDW, C_RED); orgfxplus_line(-350*FIXEDW,50*FIXEDW, 450*FIXEDW,100*FIXEDW, C_RED); orgfxplus_line(400*FIXEDW,50*FIXEDW, 450*FIXEDW,150*FIXEDW, C_GREEN); orgfxplus_line(450*FIXEDW,100*FIXEDW, 350*FIXEDW,150*FIXEDW, C_BLUE); orgfxplus_triangle(100*FIXEDW,-250*FIXEDW, 200*FIXEDW,250*FIXEDW, 150*FIXEDW,350*FIXEDW, C_RED); orgfxplus_colorkey(0xf81f, 0); orgfxplus_draw_surface(300*FIXEDW, 200*FIXEDW, bahamut_sprite); break; } case STATE_FILLMODES: { orgfx_point3 offset = {200, 200, 0}; orgfx_point3 rotation = {0,0,rad}; orgfx_enable_transform(1); orgfx_matrix m = orgfx3d_identity(); m = orgfx3d_rotateX(m, rotation.x); m = orgfx3d_rotateY(m, rotation.y); m = orgfx3d_rotateZ(m, rotation.z); m = orgfx3d_translate(m, offset); orgfx3d_set_matrix(m); orgfx_set_colors(C_RED, C_GREEN, C_BLUE); // Flat color (Red) orgfx_triangle(-50*FIXEDW, -50*FIXEDW, 50*FIXEDW, -50*FIXEDW, 0*FIXEDW, 50*FIXEDW, 0); offset.x = 50; m = orgfx3d_identity(); m = orgfx3d_rotateX(m, rotation.x); m = orgfx3d_rotateY(m, rotation.y); m = orgfx3d_rotateZ(m, rotation.z); m = orgfx3d_translate(m, offset); orgfx3d_set_matrix(m); // Interpolated color RGB orgfxplus_alpha(0x00ffffff, 1); orgfx_triangle(-50*FIXEDW, -50*FIXEDW, 50*FIXEDW, -50*FIXEDW, 0*FIXEDW, 50*FIXEDW, 1); orgfxplus_alpha(GFX_OPAQUE, 0); offset.x = 300; offset.y = 300; m = orgfx3d_identity(); m = orgfx3d_rotateX(m, rotation.x); m = orgfx3d_rotateY(m, rotation.y); m = orgfx3d_rotateZ(m, rotation.z); m = orgfx3d_translate(m, offset); orgfx3d_set_matrix(m); orgfx_enable_tex0(1); orgfxplus_bind_tex0(bahamut_sprite); // Textured triangle orgfx_uv(0,0,186,0,0,248); orgfx_triangle(-98*FIXEDW, -124*FIXEDW, 98*FIXEDW, -124*FIXEDW, -98*FIXEDW, 124*FIXEDW, 1); orgfx_uv(186,0,186,248,0,248); orgfx_triangle(98*FIXEDW, -124*FIXEDW, 98*FIXEDW, 124*FIXEDW, -98*FIXEDW, 124*FIXEDW, 1); orgfx_enable_tex0(0); orgfx_enable_transform(0); break; } case STATE_COLORKEY: { orgfxplus_colorkey(0xf81f, 0); orgfxplus_draw_surface(-50*FIXEDW, -50*FIXEDW, bahamut_sprite); orgfxplus_colorkey(0xf81f, 1); orgfxplus_draw_surface(250*FIXEDW, 50*FIXEDW, bahamut_sprite); orgfxplus_alpha(0xffffff00 | (unsigned int)((1+sin(2*rad))/2.0*0xff), 1); orgfxplus_draw_surface(150*FIXEDW, 250*FIXEDW, bahamut_sprite); orgfxplus_alpha(GFX_OPAQUE, 0); break; } case STATE_3D: { orgfx_point3 offset = {200, 500, 0}; orgfx_point3 scale = {25.0, 25.0, 25.0}; orgfx_point3 rot = {-1.5,0,rad}; mesh.scale = scale; mesh.translation = offset; mesh.rotation = rot; orgfx3d_draw_mesh(&mesh, 0, 0); orgfx_clear_zbuffer(); for(i = 0; i < 1500000; ++i); orgfx_enable_zbuffer(1); mesh.translation.x += 300; mesh.rotation.z = -rad; orgfx3d_draw_mesh(&mesh, 1, 0); orgfx_enable_zbuffer(0); break; } } // Increment state stateTimer++; if(stateTimer >= stateTimerMax) { stateTimer = 0; state++; if(state >= LAST_STATE) state = STATE_ORSOC_SPLASH; } rad += 0.05; if(rad >= M_PI*2) rad -= M_PI*2; for(i = 0; i < 500000; ++i); // Swap buffers orgfxplus_flip(); } }
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