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Comparing deliantra/Deliantra-Client/pango-render.c (file contents):
Revision 1.2 by root, Tue Jul 4 23:44:23 2006 UTC vs.
Revision 1.16 by root, Thu Nov 26 07:19:11 2009 UTC

… …
35 35
36struct _PangoOpenGLRenderer 36struct _PangoOpenGLRenderer
37{ 37{
38 PangoRenderer parent_instance; 38 PangoRenderer parent_instance;
39 float r, g, b, a; // modulate 39 float r, g, b, a; // modulate
40 GLuint curtex; // current texture 40 int flags;
41 rc_t *rc; // rendercache
42 rc_key_t key; // current render key
43 rc_array_t *arr;
41}; 44};
42 45
43G_DEFINE_TYPE (PangoOpenGLRenderer, pango_opengl_renderer, PANGO_TYPE_RENDERER) 46G_DEFINE_TYPE (PangoOpenGLRenderer, pango_opengl_renderer, PANGO_TYPE_RENDERER)
44 47
45typedef struct 48typedef struct
… …
146} 149}
147 150
148typedef struct glyph_info { 151typedef struct glyph_info {
149 tc_area tex; 152 tc_area tex;
150 int left, top; 153 int left, top;
154 int generation;
151} glyph_info; 155} glyph_info;
152 156
153static void 157static void
154free_glyph_info (glyph_info *g) 158free_glyph_info (glyph_info *g)
155{ 159{
156 tc_put (&g->tex); 160 tc_put (&g->tex);
157 g_slice_free (glyph_info, g); 161 g_slice_free (glyph_info, g);
158} 162}
159 163
164static char *apple_nvidia_bug_buf;
165
166static void
167apple_nvidia_bug (int enable)
168{
169 g_slice_free1 (TC_WIDTH * TC_HEIGHT, apple_nvidia_bug_buf);
170 apple_nvidia_bug_buf = enable ? g_slice_alloc (TC_WIDTH * TC_HEIGHT) : 0;
171}
172
173static void
174tex_update (int name, int x, int y, int w, int stride, int h, void *bm)
175{
176 glBindTexture (GL_TEXTURE_2D, name);
177
178 if (!apple_nvidia_bug_buf)
179 {
180 glPixelStorei (GL_UNPACK_ROW_LENGTH, stride);
181 glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
182 glTexSubImage2D (GL_TEXTURE_2D, 0, x, y, w, h, GL_ALPHA, GL_UNSIGNED_BYTE, bm);
183 glPixelStorei (GL_UNPACK_ROW_LENGTH, 0);
184 glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
185 }
186 else
187 {
188 /* starting with 10.5.5 (or 10.5.6), pple's nvidia driver corrupts textures */
189 /* when glTexSubImage is used, so do it the horribly slow way, */
190 /* reading/patching/uploading the full texture one each change */
191 int r;
192
193 glGetTexImage (GL_TEXTURE_2D, 0, GL_ALPHA, GL_UNSIGNED_BYTE, apple_nvidia_bug_buf);
194
195 for (r = 0; r < h; ++r)
196 memcpy ((char *)apple_nvidia_bug_buf + (y + r) * TC_WIDTH + x, (char *)bm + r * stride, w);
197
198 glTexImage2D (GL_TEXTURE_2D, 0, GL_ALPHA, TC_WIDTH, TC_HEIGHT, 0, GL_ALPHA, GL_UNSIGNED_BYTE, apple_nvidia_bug_buf);
199 }
200}
201
160static void 202static void
161draw_glyph (PangoRenderer *renderer_, PangoFont *font, PangoGlyph glyph, double x, double y) 203draw_glyph (PangoRenderer *renderer_, PangoFont *font, PangoGlyph glyph, double x, double y)
162{ 204{
163 PangoOpenGLRenderer *renderer = PANGO_OPENGL_RENDERER (renderer_); 205 PangoOpenGLRenderer *renderer = PANGO_OPENGL_RENDERER (renderer_);
164 glyph_info *g; 206 glyph_info *g;
165 float x1, y1, x2, y2;
166 207
167 if (glyph & PANGO_GLYPH_UNKNOWN_FLAG) 208 if (glyph & PANGO_GLYPH_UNKNOWN_FLAG)
168 { 209 {
169 glyph = pango_opengl_get_unknown_glyph (font); 210 glyph = pango_opengl_get_unknown_glyph (font);
170 211
… …
172 glyph = PANGO_GLYPH_UNKNOWN_FLAG; 213 glyph = PANGO_GLYPH_UNKNOWN_FLAG;
173 } 214 }
174 215
175 g = _pango_opengl_font_get_cache_glyph_data (font, glyph); 216 g = _pango_opengl_font_get_cache_glyph_data (font, glyph);
176 217
177 if (!g) 218 if (!g || g->generation != tc_generation)
178 { 219 {
179 Glyph bm; 220 Glyph bm;
180 font_render_glyph (&bm, font, glyph); 221 font_render_glyph (&bm, font, glyph);
181 222
223 if (!g)
224 {
182 g = g_slice_new (glyph_info); 225 g = g_slice_new (glyph_info);
183 226
184 tc_get (&g->tex, bm.width, bm.height); 227 _pango_opengl_font_set_glyph_cache_destroy (font, (GDestroyNotify)free_glyph_info);
228 _pango_opengl_font_set_cache_glyph_data (font, glyph, g);
229 }
230
231 g->generation = tc_generation;
185 232
186 g->left = bm.left; 233 g->left = bm.left;
187 g->top = bm.top; 234 g->top = bm.top;
188 235
189 if (renderer->curtex) 236 tc_get (&g->tex, bm.width, bm.height);
190 {
191 glEnd ();
192 renderer->curtex = 0;
193 }
194 237
195 glBindTexture (GL_TEXTURE_2D, g->tex.name); 238 if (bm.width && bm.height)
196 glPixelStorei (GL_UNPACK_ROW_LENGTH, bm.stride); 239 tex_update (g->tex.name, g->tex.x, g->tex.y, bm.width, bm.stride, bm.height, bm.bitmap);
197 glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
198 glTexSubImage2D (GL_TEXTURE_2D, 0, g->tex.x, g->tex.y, bm.width, bm.height, GL_ALPHA, GL_UNSIGNED_BYTE, bm.bitmap);
199 glPixelStorei (GL_UNPACK_ROW_LENGTH, 0);
200 glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
201
202 _pango_opengl_font_set_glyph_cache_destroy (font, (GDestroyNotify)free_glyph_info);
203 _pango_opengl_font_set_cache_glyph_data (font, glyph, g);
204 } 240 }
205 241
206 x += g->left; 242 x += g->left;
207 y -= g->top; 243 y -= g->top;
208 244
209 x1 = g->tex.x * (1. / TC_WIDTH );
210 y1 = g->tex.y * (1. / TC_HEIGHT);
211 x2 = g->tex.w * (1. / TC_WIDTH ) + x1;
212 y2 = g->tex.h * (1. / TC_HEIGHT) + y1;
213
214 if (g->tex.name != renderer->curtex) 245 if (g->tex.name != renderer->key.texname)
215 { 246 {
216 if (renderer->curtex)
217 glEnd ();
218
219 glBindTexture (GL_TEXTURE_2D, g->tex.name);
220 renderer->curtex = g->tex.name; 247 renderer->key.texname = g->tex.name;
221 glBegin (GL_QUADS); 248 renderer->arr = rc_array (renderer->rc, &renderer->key);
222 } 249 }
223 250
224 glTexCoord2f (x1, y1); glVertex2i (x , y ); 251 rc_glyph (renderer->arr, g->tex.x, g->tex.y, g->tex.w, g->tex.h, x, y);
225 glTexCoord2f (x2, y1); glVertex2i (x + g->tex.w, y );
226 glTexCoord2f (x2, y2); glVertex2i (x + g->tex.w, y + g->tex.h);
227 glTexCoord2f (x1, y2); glVertex2i (x , y + g->tex.h);
228} 252}
229 253
230static void 254static void
231draw_trapezoid (PangoRenderer *renderer_, 255draw_trapezoid (PangoRenderer *renderer_,
232 PangoRenderPart part, 256 PangoRenderPart part,
… …
236 double y2, 260 double y2,
237 double x12, 261 double x12,
238 double x22) 262 double x22)
239{ 263{
240 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; 264 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_;
265 rc_key_t key = renderer->key;
266 rc_array_t *arr;
241 267
242 if (renderer->curtex) 268 key.mode = GL_QUADS;
243 { 269 key.format = GL_V2F;
244 glEnd (); 270 key.texname = 0;
245 renderer->curtex = 0;
246 }
247 271
248 glDisable (GL_TEXTURE_2D); 272 arr = rc_array (renderer->rc, &key);
249 273
250 glBegin (GL_QUADS); 274 rc_v2f (arr, x11, y1);
251 glVertex2d (x11, y1); 275 rc_v2f (arr, x21, y1);
252 glVertex2d (x12, y1); 276 rc_v2f (arr, x22, y2);
253 glVertex2d (x22, y2); 277 rc_v2f (arr, x12, y2);
254 glVertex2d (x21, y2);
255 glEnd ();
256
257 glEnable (GL_TEXTURE_2D);
258} 278}
259 279
260void 280void
261pango_opengl_render_layout_subpixel (PangoLayout *layout, 281pango_opengl_render_layout_subpixel (PangoLayout *layout,
282 rc_t *rc,
262 int x, int y, 283 int x, int y,
263 float r, float g, float b, float a) 284 float r, float g, float b, float a,
285 int flags)
264{ 286{
265 PangoContext *context; 287 PangoContext *context;
266 PangoFontMap *fontmap; 288 PangoFontMap *fontmap;
267 PangoRenderer *renderer; 289 PangoRenderer *renderer;
290 PangoOpenGLRenderer *gl;
268 291
269 context = pango_layout_get_context (layout); 292 context = pango_layout_get_context (layout);
270 fontmap = pango_context_get_font_map (context); 293 fontmap = pango_context_get_font_map (context);
271 renderer = _pango_opengl_font_map_get_renderer (PANGO_OPENGL_FONT_MAP (fontmap)); 294 renderer = _pango_opengl_font_map_get_renderer (PANGO_OPENGL_FONT_MAP (fontmap));
272
273 PANGO_OPENGL_RENDERER (renderer)->r = r; 295 gl = PANGO_OPENGL_RENDERER (renderer);
274 PANGO_OPENGL_RENDERER (renderer)->g = g; 296
275 PANGO_OPENGL_RENDERER (renderer)->b = b; 297 gl->rc = rc;
276 PANGO_OPENGL_RENDERER (renderer)->a = a; 298 gl->r = r;
299 gl->g = g;
300 gl->b = b;
301 gl->a = a;
302 gl->flags = flags;
277 303
278 pango_renderer_draw_layout (renderer, layout, x, y); 304 pango_renderer_draw_layout (renderer, layout, x, y);
279} 305}
280 306
281void 307void
282pango_opengl_render_layout (PangoLayout *layout, 308pango_opengl_render_layout (PangoLayout *layout,
309 rc_t *rc,
283 int x, int y, 310 int x, int y,
284 float r, float g, float b, float a) 311 float r, float g, float b, float a,
312 int flags)
285{ 313{
286 pango_opengl_render_layout_subpixel (layout, x * PANGO_SCALE, y * PANGO_SCALE, r, g, b, a); 314 pango_opengl_render_layout_subpixel (
315 layout, rc, x * PANGO_SCALE, y * PANGO_SCALE, r, g, b, a, flags
316 );
287} 317}
288 318
289static void 319static void
290pango_opengl_renderer_init (PangoOpenGLRenderer *renderer) 320pango_opengl_renderer_init (PangoOpenGLRenderer *renderer)
291{ 321{
322 memset (&renderer->key, 0, sizeof (rc_key_t));
323
292 renderer->r = 1.; 324 renderer->r = 1.;
293 renderer->g = 1.; 325 renderer->g = 1.;
294 renderer->b = 1.; 326 renderer->b = 1.;
295 renderer->a = 1.; 327 renderer->a = 1.;
296} 328}
297 329
298static void 330static void
299prepare_run (PangoRenderer *renderer, PangoLayoutRun *run) 331prepare_run (PangoRenderer *renderer, PangoLayoutRun *run)
300{ 332{
301 PangoOpenGLRenderer *glrenderer = (PangoOpenGLRenderer *)renderer; 333 PangoOpenGLRenderer *gl = (PangoOpenGLRenderer *)renderer;
302 PangoColor *fg = 0; 334 PangoColor *fg = 0;
303 GSList *l; 335 GSList *l;
336 unsigned char r, g, b, a;
304 337
305 renderer->underline = PANGO_UNDERLINE_NONE; 338 renderer->underline = PANGO_UNDERLINE_NONE;
306 renderer->strikethrough = FALSE; 339 renderer->strikethrough = FALSE;
340
341 gl->key.mode = GL_QUADS;
342 gl->key.format = 0; // glyphs
343 gl->key.texname = 0;
307 344
308 for (l = run->item->analysis.extra_attrs; l; l = l->next) 345 for (l = run->item->analysis.extra_attrs; l; l = l->next)
309 { 346 {
310 PangoAttribute *attr = l->data; 347 PangoAttribute *attr = l->data;
311 348
… …
327 break; 364 break;
328 } 365 }
329 } 366 }
330 367
331 if (fg) 368 if (fg)
332 glColor4f (fg->red / 65535., fg->green / 65535., fg->blue / 65535., glrenderer->a); 369 {
370 r = fg->red * (255.f / 65535.f);
371 g = fg->green * (255.f / 65535.f);
372 b = fg->blue * (255.f / 65535.f);
373 }
333 else 374 else
334 glColor4f (glrenderer->r, glrenderer->g, glrenderer->b, glrenderer->a); 375 {
376 r = gl->r * 255.f;
377 g = gl->g * 255.f;
378 b = gl->b * 255.f;
379 }
380
381 a = gl->a * 255.f;
382
383 if (gl->flags & FLAG_INVERSE)
384 {
385 r ^= 0xffU;
386 g ^= 0xffU;
387 b ^= 0xffU;
388 }
389
390 gl->key.r = r;
391 gl->key.g = g;
392 gl->key.b = b;
393 gl->key.a = a;
335} 394}
336 395
337static void 396static void
338draw_begin (PangoRenderer *renderer_) 397draw_begin (PangoRenderer *renderer_)
339{ 398{
340 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; 399 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_;
341
342 renderer->curtex = 0;
343
344 glEnable (GL_TEXTURE_2D);
345 glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
346 glEnable (GL_BLEND);
347 gl_BlendFuncSeparate (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA,
348 GL_ONE , GL_ONE_MINUS_SRC_ALPHA);
349 glEnable (GL_ALPHA_TEST);
350 glAlphaFunc (GL_GREATER, 0.01f);
351} 400}
352 401
353static void 402static void
354draw_end (PangoRenderer *renderer_) 403draw_end (PangoRenderer *renderer_)
355{ 404{
356 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; 405 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_;
357
358 if (renderer->curtex)
359 glEnd ();
360
361 glDisable (GL_ALPHA_TEST);
362 glDisable (GL_BLEND);
363 glDisable (GL_TEXTURE_2D);
364} 406}
365 407
366static void 408static void
367pango_opengl_renderer_class_init (PangoOpenGLRendererClass *klass) 409pango_opengl_renderer_class_init (PangoOpenGLRendererClass *klass)
368{ 410{

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