diff options
Diffstat (limited to 'src/engine/client/ec_gfx.c')
| -rw-r--r-- | src/engine/client/ec_gfx.c | 1020 |
1 files changed, 0 insertions, 1020 deletions
diff --git a/src/engine/client/ec_gfx.c b/src/engine/client/ec_gfx.c deleted file mode 100644 index 1ea9f407..00000000 --- a/src/engine/client/ec_gfx.c +++ /dev/null @@ -1,1020 +0,0 @@ -/* copyright (c) 2007 magnus auvinen, see licence.txt for more info */ - -#include <base/detect.h> - -#include "SDL.h" - -#ifdef CONF_FAMILY_WINDOWS - #define WIN32_LEAN_AND_MEAN - #include <windows.h> -#endif - -#ifdef CONF_PLATFORM_MACOSX - #include <OpenGL/gl.h> - #include <OpenGL/glu.h> -#else - #include <GL/gl.h> - #include <GL/glu.h> -#endif - -#include <base/system.h> -#include <engine/external/pnglite/pnglite.h> - -#include <engine/e_client_interface.h> -#include <engine/e_engine.h> -#include <engine/e_config.h> -#include <engine/e_keys.h> - -#include <string.h> -#include <stdio.h> -#include <math.h> - -/* compressed textures */ -#define GL_COMPRESSED_RGB_ARB 0x84ED -#define GL_COMPRESSED_RGBA_ARB 0x84EE -#define GL_COMPRESSED_ALPHA_ARB 0x84E9 - -#define TEXTURE_MAX_ANISOTROPY_EXT 0x84FE - -enum -{ - DRAWING_QUADS=1, - DRAWING_LINES=2 -}; - -/* */ -typedef struct { float x, y, z; } VEC3; -typedef struct { float u, v; } TEXCOORD; -typedef struct { float r, g, b, a; } COLOR; - -typedef struct -{ - VEC3 pos; - TEXCOORD tex; - COLOR color; -} VERTEX; - -const int vertex_buffer_size = 32*1024; -static VERTEX *vertices = 0; -static int num_vertices = 0; - -static int no_gfx = 0; - -static COLOR color[4]; -static TEXCOORD texture[4]; - -static int do_screenshot = 0; -static int render_enable = 1; - -static int screen_width = -1; -static int screen_height = -1; -static float rotation = 0; -static int drawing = 0; - -static float screen_x0 = 0; -static float screen_y0 = 0; -static float screen_x1 = 0; -static float screen_y1 = 0; - -static int invalid_texture = 0; - -typedef struct -{ - GLuint tex; - int memsize; - int flags; - int next; -} TEXTURE; - -enum -{ - MAX_TEXTURES = 1024*4 -}; - -static TEXTURE textures[MAX_TEXTURES]; -static int first_free_texture; -static int memory_usage = 0; - -static SDL_Surface *screen_surface; - -static const unsigned char null_texture_data[] = { - 0xff,0x00,0x00,0xff, 0xff,0x00,0x00,0xff, 0x00,0xff,0x00,0xff, 0x00,0xff,0x00,0xff, - 0xff,0x00,0x00,0xff, 0xff,0x00,0x00,0xff, 0x00,0xff,0x00,0xff, 0x00,0xff,0x00,0xff, - 0x00,0x00,0xff,0xff, 0x00,0x00,0xff,0xff, 0xff,0xff,0x00,0xff, 0xff,0xff,0x00,0xff, - 0x00,0x00,0xff,0xff, 0x00,0x00,0xff,0xff, 0xff,0xff,0x00,0xff, 0xff,0xff,0x00,0xff, -}; - -static void flush() -{ - if(num_vertices == 0) - return; - - if(no_gfx) - { - num_vertices = 0; - return; - } - - - //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); - //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - - glVertexPointer(3, GL_FLOAT, - sizeof(VERTEX), - (char*)vertices); - glTexCoordPointer(2, GL_FLOAT, - sizeof(VERTEX), - (char*)vertices + sizeof(float)*3); - glColorPointer(4, GL_FLOAT, - sizeof(VERTEX), - (char*)vertices + sizeof(float)*5); - glEnableClientState(GL_VERTEX_ARRAY); - glEnableClientState(GL_TEXTURE_COORD_ARRAY); - glEnableClientState(GL_COLOR_ARRAY); - - if(render_enable) - { - if(drawing == DRAWING_QUADS) - glDrawArrays(GL_QUADS, 0, num_vertices); - else if(drawing == DRAWING_LINES) - glDrawArrays(GL_LINES, 0, num_vertices); - } - - /* Reset pointer */ - num_vertices = 0; -} - -static void add_vertices(int count) -{ - num_vertices += count; - if((num_vertices + count) >= vertex_buffer_size) - flush(); -} - -static int try_init() -{ - const SDL_VideoInfo *info; - int flags = SDL_OPENGL; - - screen_width = config.gfx_screen_width; - screen_height = config.gfx_screen_height; - - info = SDL_GetVideoInfo(); - - /* set flags */ - flags = SDL_OPENGL; - flags |= SDL_GL_DOUBLEBUFFER; - flags |= SDL_HWPALETTE; - if(config.dbg_resizable) - flags |= SDL_RESIZABLE; - - if(info->hw_available) - flags |= SDL_HWSURFACE; - else - flags |= SDL_SWSURFACE; - - if(info->blit_hw) - flags |= SDL_HWACCEL; - - if(config.gfx_fullscreen) - flags |= SDL_FULLSCREEN; - - /* set gl attributes */ - if(config.gfx_fsaa_samples) - { - SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1); - SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, config.gfx_fsaa_samples); - } - else - { - SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 0); - SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 0); - } - - SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); - SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, config.gfx_vsync); - - /* set caption */ - SDL_WM_SetCaption("Teeworlds", "Teeworlds"); - - /* create window */ - screen_surface = SDL_SetVideoMode(screen_width, screen_height, 0, flags); - if(screen_surface == NULL) - { - dbg_msg("gfx", "unable to set video mode: %s", SDL_GetError()); - return -1; - } - - return 0; -} - -void gfx_font_init(); - -static int gfx_init_window() -{ - if(try_init() == 0) - return 0; - - /* try disabling fsaa */ - while(config.gfx_fsaa_samples) - { - config.gfx_fsaa_samples--; - - if(config.gfx_fsaa_samples) - dbg_msg("gfx", "lowering FSAA to %d and trying again", config.gfx_fsaa_samples); - else - dbg_msg("gfx", "disabling FSAA and trying again"); - - if(try_init() == 0) - return 0; - } - - /* try lowering the resolution */ - if(config.gfx_screen_width != 640 || config.gfx_screen_height != 480) - { - dbg_msg("gfx", "setting resolution to 640x480 and trying again"); - config.gfx_screen_width = 640; - config.gfx_screen_height = 480; - - if(try_init() == 0) - return 0; - } - - dbg_msg("gfx", "out of ideas. failed to init graphics"); - - return -1; -} - -int gfx_init() -{ - int i; - - if(config.dbg_stress) - no_gfx = 1; - - { - int systems = 0; - - if(!no_gfx) - systems |= SDL_INIT_VIDEO; - - if(config.snd_enable) - systems |= SDL_INIT_AUDIO; - - if(config.cl_eventthread) - systems |= SDL_INIT_EVENTTHREAD; - - if(SDL_Init(systems) < 0) - { - dbg_msg("gfx", "unable to init SDL: %s", SDL_GetError()); - return -1; - } - } - - atexit(SDL_Quit); - - if(!no_gfx) - { - #ifdef CONF_FAMILY_WINDOWS - if(!getenv("SDL_VIDEO_WINDOW_POS") && !getenv("SDL_VIDEO_CENTERED")) - putenv("SDL_VIDEO_WINDOW_POS=8,27"); - #endif - - if(gfx_init_window() != 0) - return -1; - } - - /* Init vertices */ - if (vertices) - mem_free(vertices); - vertices = (VERTEX*)mem_alloc(sizeof(VERTEX) * vertex_buffer_size, 1); - num_vertices = 0; - - - /* - dbg_msg("gfx", "OpenGL version %d.%d.%d", context.version_major(), - context.version_minor(), - context.version_rev());*/ - - - /* Set all z to -5.0f */ - for (i = 0; i < vertex_buffer_size; i++) - vertices[i].pos.z = -5.0f; - - /* init textures */ - first_free_texture = 0; - for(i = 0; i < MAX_TEXTURES; i++) - textures[i].next = i+1; - textures[MAX_TEXTURES-1].next = -1; - - if(!no_gfx) - { - SDL_ShowCursor(0); - gfx_mapscreen(0,0,config.gfx_screen_width, config.gfx_screen_height); - - /* set some default settings */ - glEnable(GL_BLEND); - glDisable(GL_CULL_FACE); - glDisable(GL_DEPTH_TEST); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - - glAlphaFunc(GL_GREATER, 0); - glEnable(GL_ALPHA_TEST); - glDepthMask(0); - - - //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - } - - /* init input */ - inp_init(); - - /* create null texture, will get id=0 */ - invalid_texture = gfx_load_texture_raw(4,4,IMG_RGBA,null_texture_data,IMG_RGBA,TEXLOAD_NORESAMPLE); - dbg_msg("", "invalid texture id: %d %d", invalid_texture, textures[invalid_texture].tex); - - - /* font init */ - gfx_font_init(); - /* perform some tests */ - /* pixeltest_dotesting(); */ - - /*if(config.dbg_stress) - gfx_minimize();*/ - - return 0; -} - -float gfx_screenaspect() -{ - return gfx_screenwidth()/(float)gfx_screenheight(); -} - -int gfx_window_active() -{ - return SDL_GetAppState()&SDL_APPINPUTFOCUS; -} - -int gfx_window_open() -{ - return SDL_GetAppState()&SDL_APPACTIVE; -} - -VIDEO_MODE fakemodes[] = { - {320,240,8,8,8}, {400,300,8,8,8}, {640,480,8,8,8}, - {720,400,8,8,8}, {768,576,8,8,8}, {800,600,8,8,8}, - {1024,600,8,8,8}, {1024,768,8,8,8}, {1152,864,8,8,8}, - {1280,768,8,8,8}, {1280,800,8,8,8}, {1280,960,8,8,8}, - {1280,1024,8,8,8}, {1368,768,8,8,8}, {1400,1050,8,8,8}, - {1440,900,8,8,8}, {1440,1050,8,8,8}, {1600,1000,8,8,8}, - {1600,1200,8,8,8}, {1680,1050,8,8,8}, {1792,1344,8,8,8}, - {1800,1440,8,8,8}, {1856,1392,8,8,8}, {1920,1080,8,8,8}, - {1920,1200,8,8,8}, {1920,1440,8,8,8}, {1920,2400,8,8,8}, - {2048,1536,8,8,8}, - - {320,240,5,6,5}, {400,300,5,6,5}, {640,480,5,6,5}, - {720,400,5,6,5}, {768,576,5,6,5}, {800,600,5,6,5}, - {1024,600,5,6,5}, {1024,768,5,6,5}, {1152,864,5,6,5}, - {1280,768,5,6,5}, {1280,800,5,6,5}, {1280,960,5,6,5}, - {1280,1024,5,6,5}, {1368,768,5,6,5}, {1400,1050,5,6,5}, - {1440,900,5,6,5}, {1440,1050,5,6,5}, {1600,1000,5,6,5}, - {1600,1200,5,6,5}, {1680,1050,5,6,5}, {1792,1344,5,6,5}, - {1800,1440,5,6,5}, {1856,1392,5,6,5}, {1920,1080,5,6,5}, - {1920,1200,5,6,5}, {1920,1440,5,6,5}, {1920,2400,5,6,5}, - {2048,1536,5,6,5} -}; - -int gfx_get_video_modes(VIDEO_MODE *list, int maxcount) -{ - int num_modes = sizeof(fakemodes)/sizeof(VIDEO_MODE); - SDL_Rect **modes; - - if(config.gfx_display_all_modes) - { - int count = sizeof(fakemodes)/sizeof(VIDEO_MODE); - mem_copy(list, fakemodes, sizeof(fakemodes)); - if(maxcount < count) - count = maxcount; - return count; - } - - /* TODO: fix this code on osx or windows */ - - modes = SDL_ListModes(NULL, SDL_OPENGL|SDL_GL_DOUBLEBUFFER|SDL_FULLSCREEN); - if(modes == NULL) - { - /* no modes */ - num_modes = 0; - } - else if(modes == (SDL_Rect**)-1) - { - /* all modes */ - } - else - { - int i; - num_modes = 0; - for(i = 0; modes[i]; ++i) - { - if(num_modes == maxcount) - break; - list[num_modes].width = modes[i]->w; - list[num_modes].height = modes[i]->h; - list[num_modes].red = 8; - list[num_modes].green = 8; - list[num_modes].blue = 8; - num_modes++; - } - } - - return num_modes; -} - -int gfx_unload_texture(int index) -{ - if(index == invalid_texture) - return 0; - - if(index < 0) - return 0; - - glDeleteTextures(1, &textures[index].tex); - textures[index].next = first_free_texture; - memory_usage -= textures[index].memsize; - first_free_texture = index; - return 0; -} - -void gfx_blend_none() -{ - if(no_gfx) return; - glDisable(GL_BLEND); -} - -void gfx_blend_normal() -{ - if(no_gfx) return; - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); -} - -void gfx_blend_additive() -{ - if(no_gfx) return; - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE); -} - -int gfx_memory_usage() { return memory_usage; } - -static unsigned char sample(int w, int h, const unsigned char *data, int u, int v, int offset) -{ - return (data[(v*w+u)*4+offset]+ - data[(v*w+u+1)*4+offset]+ - data[((v+1)*w+u)*4+offset]+ - data[((v+1)*w+u+1)*4+offset])/4; -} - -int gfx_load_texture_raw(int w, int h, int format, const void *data, int store_format, int flags) -{ - int mipmap = 1; - unsigned char *texdata = (unsigned char *)data; - unsigned char *tmpdata = 0; - int oglformat = 0; - int store_oglformat = 0; - int tex = 0; - - /* don't waste memory on texture if we are stress testing */ - if(config.dbg_stress || no_gfx) - return invalid_texture; - - /* grab texture */ - tex = first_free_texture; - first_free_texture = textures[tex].next; - textures[tex].next = -1; - - /* resample if needed */ - if(!(flags&TEXLOAD_NORESAMPLE) && config.gfx_texture_quality==0) - { - if(w > 16 && h > 16 && format == IMG_RGBA) - { - unsigned char *tmpdata; - int c = 0; - int x, y; - - tmpdata = (unsigned char *)mem_alloc(w*h*4, 1); - - w/=2; - h/=2; - - for(y = 0; y < h; y++) - for(x = 0; x < w; x++, c++) - { - tmpdata[c*4] = sample(w*2, h*2, texdata, x*2,y*2, 0); - tmpdata[c*4+1] = sample(w*2, h*2, texdata, x*2,y*2, 1); - tmpdata[c*4+2] = sample(w*2, h*2, texdata, x*2,y*2, 2); - tmpdata[c*4+3] = sample(w*2, h*2, texdata, x*2,y*2, 3); - } - texdata = tmpdata; - } - } - - oglformat = GL_RGBA; - if(format == IMG_RGB) - oglformat = GL_RGB; - else if(format == IMG_ALPHA) - oglformat = GL_ALPHA; - - /* upload texture */ - if(config.gfx_texture_compression) - { - store_oglformat = GL_COMPRESSED_RGBA_ARB; - if(store_format == IMG_RGB) - store_oglformat = GL_COMPRESSED_RGB_ARB; - else if(store_format == IMG_ALPHA) - store_oglformat = GL_COMPRESSED_ALPHA_ARB; - } - else - { - store_oglformat = GL_RGBA; - if(store_format == IMG_RGB) - store_oglformat = GL_RGB; - else if(store_format == IMG_ALPHA) - store_oglformat = GL_ALPHA; - } - - glGenTextures(1, &textures[tex].tex); - glBindTexture(GL_TEXTURE_2D, textures[tex].tex); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); - gluBuild2DMipmaps(GL_TEXTURE_2D, store_oglformat, w, h, oglformat, GL_UNSIGNED_BYTE, texdata); - - /* calculate memory usage */ - { - int pixel_size = 4; - if(store_format == IMG_RGB) - pixel_size = 3; - else if(store_format == IMG_ALPHA) - pixel_size = 1; - - textures[tex].memsize = w*h*pixel_size; - if(mipmap) - { - while(w > 2 && h > 2) - { - w>>=1; - h>>=1; - textures[tex].memsize += w*h*pixel_size; - } - } - } - - memory_usage += textures[tex].memsize; - mem_free(tmpdata); - return tex; -} - -/* simple uncompressed RGBA loaders */ -int gfx_load_texture(const char *filename, int store_format, int flags) -{ - int l = strlen(filename); - int id; - IMAGE_INFO img; - - if(l < 3) - return -1; - if(gfx_load_png(&img, filename)) - { - if (store_format == IMG_AUTO) - store_format = img.format; - - id = gfx_load_texture_raw(img.width, img.height, img.format, img.data, store_format, flags); - mem_free(img.data); - return id; - } - - return invalid_texture; -} - -int gfx_load_png(IMAGE_INFO *img, const char *filename) -{ - char completefilename[512]; - unsigned char *buffer; - png_t png; - - /* open file for reading */ - png_init(0,0); - - engine_getpath(completefilename, sizeof(completefilename), filename, IOFLAG_READ); - - if(png_open_file(&png, completefilename) != PNG_NO_ERROR) - { - dbg_msg("game/png", "failed to open file. filename='%s'", completefilename); - return 0; - } - - if(png.depth != 8 || (png.color_type != PNG_TRUECOLOR && png.color_type != PNG_TRUECOLOR_ALPHA)) - { - dbg_msg("game/png", "invalid format. filename='%s'", completefilename); - png_close_file(&png); - return 0; - } - - buffer = (unsigned char *)mem_alloc(png.width * png.height * png.bpp, 1); - png_get_data(&png, buffer); - png_close_file(&png); - - img->width = png.width; - img->height = png.height; - if(png.color_type == PNG_TRUECOLOR) - img->format = IMG_RGB; - else if(png.color_type == PNG_TRUECOLOR_ALPHA) - img->format = IMG_RGBA; - img->data = buffer; - return 1; -} - -void gfx_shutdown() -{ - if (vertices) - mem_free(vertices); - - /* TODO: SDL, is this correct? */ - SDL_Quit(); -} - -void gfx_screenshot() -{ - do_screenshot = 1; -} - - -extern int text_render_codepaths_usage[5]; - -void gfx_swap() -{ - /*dbg_msg("", "%d %d %d %d %d", - text_render_codepaths_usage[0], - text_render_codepaths_usage[1], - text_render_codepaths_usage[2], - text_render_codepaths_usage[3], - text_render_codepaths_usage[4]); - - text_render_codepaths_usage[0] = 0; - text_render_codepaths_usage[1] = 0; - text_render_codepaths_usage[2] = 0; - text_render_codepaths_usage[3] = 0; - text_render_codepaths_usage[4] = 0;*/ - - if(do_screenshot) - { - /* find filename */ - char filename[128]; - static int index = 1; - - for(; index < 1000; index++) - { - IOHANDLE io; - str_format(filename, sizeof(filename), "screenshots/screenshot%04d.png", index); - io = engine_openfile(filename, IOFLAG_READ); - if(io) - io_close(io); - else - break; - } - - gfx_screenshot_direct(filename); - - do_screenshot = 0; - } - - { - static PERFORMACE_INFO pscope = {"glfwSwapBuffers", 0}; - perf_start(&pscope); - SDL_GL_SwapBuffers(); - perf_end(); - } - - if(render_enable && config.gfx_finish) - glFinish(); -} - -void gfx_screenshot_direct(const char *filename) -{ - /* fetch image data */ - int y; - int w = screen_width; - int h = screen_height; - unsigned char *pixel_data = (unsigned char *)mem_alloc(w*(h+1)*4, 1); - unsigned char *temp_row = pixel_data+w*h*4; - glReadPixels(0,0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, pixel_data); - - /* flip the pixel because opengl works from bottom left corner */ - for(y = 0; y < h/2; y++) - { - mem_copy(temp_row, pixel_data+y*w*4, w*4); - mem_copy(pixel_data+y*w*4, pixel_data+(h-y-1)*w*4, w*4); - mem_copy(pixel_data+(h-y-1)*w*4, temp_row,w*4); - } - - /* find filename */ - { - char wholepath[1024]; - png_t png; - - engine_savepath(filename, wholepath, sizeof(wholepath)); - - /* save png */ - dbg_msg("client", "saved screenshot to '%s'", wholepath); - png_open_file_write(&png, wholepath); - png_set_data(&png, w, h, 8, PNG_TRUECOLOR_ALPHA, (unsigned char *)pixel_data); - png_close_file(&png); - } - - /* clean up */ - mem_free(pixel_data); -} - -int gfx_screenwidth() -{ - return screen_width; -} - -int gfx_screenheight() -{ - return screen_height; -} - -void gfx_texture_set(int slot) -{ - dbg_assert(drawing == 0, "called gfx_texture_set within begin"); - if(no_gfx) return; - if(slot == -1) - { - glDisable(GL_TEXTURE_2D); - } - else - { - glEnable(GL_TEXTURE_2D); - glBindTexture(GL_TEXTURE_2D, textures[slot].tex); - } -} - -void gfx_clear(float r, float g, float b) -{ - if(no_gfx) return; - glClearColor(r,g,b,0.0f); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); -} - -void gfx_mapscreen(float tl_x, float tl_y, float br_x, float br_y) -{ - screen_x0 = tl_x; - screen_y0 = tl_y; - screen_x1 = br_x; - screen_y1 = br_y; - if(no_gfx) return; - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(tl_x, br_x, br_y, tl_y, 1.0f, 10.f); -} - -void gfx_getscreen(float *tl_x, float *tl_y, float *br_x, float *br_y) -{ - *tl_x = screen_x0; - *tl_y = screen_y0; - *br_x = screen_x1; - *br_y = screen_y1; -} - -void gfx_quads_begin() -{ - dbg_assert(drawing == 0, "called quads_begin twice"); - drawing = DRAWING_QUADS; - - gfx_quads_setsubset(0,0,1,1); - gfx_quads_setrotation(0); - gfx_setcolor(1,1,1,1); -} - -void gfx_quads_end() -{ - dbg_assert(drawing == DRAWING_QUADS, "called quads_end without begin"); - flush(); - drawing = 0; -} - - -void gfx_quads_setrotation(float angle) -{ - dbg_assert(drawing == DRAWING_QUADS, "called gfx_quads_setrotation without begin"); - rotation = angle; -} - -void gfx_setcolorvertex(int i, float r, float g, float b, float a) -{ - dbg_assert(drawing != 0, "called gfx_quads_setcolorvertex without begin"); - color[i].r = r; - color[i].g = g; - color[i].b = b; - color[i].a = a; -} - -void gfx_setcolor(float r, float g, float b, float a) -{ - dbg_assert(drawing != 0, "called gfx_quads_setcolor without begin"); - gfx_setcolorvertex(0, r, g, b, a); - gfx_setcolorvertex(1, r, g, b, a); - gfx_setcolorvertex(2, r, g, b, a); - gfx_setcolorvertex(3, r, g, b, a); -} - -void gfx_quads_setsubset(float tl_u, float tl_v, float br_u, float br_v) -{ - dbg_assert(drawing == DRAWING_QUADS, "called gfx_quads_setsubset without begin"); - - texture[0].u = tl_u; texture[1].u = br_u; - texture[0].v = tl_v; texture[1].v = tl_v; - - texture[3].u = tl_u; texture[2].u = br_u; - texture[3].v = br_v; texture[2].v = br_v; -} - -void gfx_quads_setsubset_free( - float x0, float y0, float x1, float y1, - float x2, float y2, float x3, float y3) -{ - texture[0].u = x0; texture[0].v = y0; - texture[1].u = x1; texture[1].v = y1; - texture[2].u = x2; texture[2].v = y2; - texture[3].u = x3; texture[3].v = y3; -} - - -static void rotate(VEC3 *center, VEC3 *point) -{ - float x = point->x - center->x; - float y = point->y - center->y; - point->x = x * cosf(rotation) - y * sinf(rotation) + center->x; - point->y = x * sinf(rotation) + y * cosf(rotation) + center->y; -} - -void gfx_quads_draw(float x, float y, float w, float h) -{ - gfx_quads_drawTL(x-w/2, y-h/2,w,h); -} - -void gfx_quads_drawTL(float x, float y, float width, float height) -{ - VEC3 center; - - dbg_assert(drawing == DRAWING_QUADS, "called quads_draw without begin"); - - center.x = x + width/2; - center.y = y + height/2; - center.z = 0; - - vertices[num_vertices].pos.x = x; - vertices[num_vertices].pos.y = y; - vertices[num_vertices].tex = texture[0]; - vertices[num_vertices].color = color[0]; - rotate(¢er, &vertices[num_vertices].pos); - - vertices[num_vertices + 1].pos.x = x+width; - vertices[num_vertices + 1].pos.y = y; - vertices[num_vertices + 1].tex = texture[1]; - vertices[num_vertices + 1].color = color[1]; - rotate(¢er, &vertices[num_vertices + 1].pos); - - vertices[num_vertices + 2].pos.x = x + width; - vertices[num_vertices + 2].pos.y = y+height; - vertices[num_vertices + 2].tex = texture[2]; - vertices[num_vertices + 2].color = color[2]; - rotate(¢er, &vertices[num_vertices + 2].pos); - - vertices[num_vertices + 3].pos.x = x; - vertices[num_vertices + 3].pos.y = y+height; - vertices[num_vertices + 3].tex = texture[3]; - vertices[num_vertices + 3].color = color[3]; - rotate(¢er, &vertices[num_vertices + 3].pos); - - add_vertices(4); -} - -void gfx_quads_draw_freeform( - float x0, float y0, float x1, float y1, - float x2, float y2, float x3, float y3) -{ - dbg_assert(drawing == DRAWING_QUADS, "called quads_draw_freeform without begin"); - - vertices[num_vertices].pos.x = x0; - vertices[num_vertices].pos.y = y0; - vertices[num_vertices].tex = texture[0]; - vertices[num_vertices].color = color[0]; - - vertices[num_vertices + 1].pos.x = x1; - vertices[num_vertices + 1].pos.y = y1; - vertices[num_vertices + 1].tex = texture[1]; - vertices[num_vertices + 1].color = color[1]; - - vertices[num_vertices + 2].pos.x = x3; - vertices[num_vertices + 2].pos.y = y3; - vertices[num_vertices + 2].tex = texture[3]; - vertices[num_vertices + 2].color = color[3]; - - vertices[num_vertices + 3].pos.x = x2; - vertices[num_vertices + 3].pos.y = y2; - vertices[num_vertices + 3].tex = texture[2]; - vertices[num_vertices + 3].color = color[2]; - - add_vertices(4); -} - -void gfx_quads_text(float x, float y, float size, float r, float g, float b, float a, const char *text) -{ - float startx = x; - - gfx_quads_begin(); - gfx_setcolor(r,g,b,a); - - while(*text) - { - char c = *text; - text++; - - if(c == '\n') - { - x = startx; - y += size; - } - else - { - gfx_quads_setsubset( - (c%16)/16.0f, - (c/16)/16.0f, - (c%16)/16.0f+1.0f/16.0f, - (c/16)/16.0f+1.0f/16.0f); - - gfx_quads_drawTL(x,y,size,size); - x += size/2; - } - } - - gfx_quads_end(); -} - -void gfx_lines_begin() -{ - dbg_assert(drawing == 0, "called begin twice"); - drawing = DRAWING_LINES; - gfx_setcolor(1,1,1,1); -} - -void gfx_lines_end() -{ - dbg_assert(drawing == DRAWING_LINES, "called end without begin"); - flush(); - drawing = 0; -} - -void gfx_lines_draw(float x0, float y0, float x1, float y1) -{ - dbg_assert(drawing == DRAWING_LINES, "called draw without begin"); - - vertices[num_vertices].pos.x = x0; - vertices[num_vertices].pos.y = y0; - vertices[num_vertices].tex = texture[0]; - vertices[num_vertices].color = color[0]; - - vertices[num_vertices + 1].pos.x = x1; - vertices[num_vertices + 1].pos.y = y1; - vertices[num_vertices + 1].tex = texture[1]; - vertices[num_vertices + 1].color = color[1]; - - add_vertices(2); -} - -void gfx_clip_enable(int x, int y, int w, int h) -{ - if(no_gfx) return; - glScissor(x, gfx_screenheight()-(y+h), w, h); - glEnable(GL_SCISSOR_TEST); -} - -void gfx_clip_disable() -{ - if(no_gfx) return; - glDisable(GL_SCISSOR_TEST); -} - -void gfx_minimize() -{ - SDL_WM_IconifyWindow(); -} - -void gfx_maximize() -{ - /* TODO: SDL */ -} |