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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 1.17 by root, Sun Nov 29 14:45:12 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 int apple_nvidia_bug_workaround;
165
166static void
167apple_nvidia_bug (int enable)
168{
169 apple_nvidia_bug_workaround = enable;
170}
171
172static void
173tex_update (int name, int x, int y, int w, int stride, int h, void *bm)
174{
175 glBindTexture (GL_TEXTURE_2D, name);
176
177 if (!apple_nvidia_bug_workaround)
178 {
179 glPixelStorei (GL_UNPACK_ROW_LENGTH, stride);
180 glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
181 glTexSubImage2D (GL_TEXTURE_2D, 0, x, y, w, h, GL_ALPHA, GL_UNSIGNED_BYTE, bm);
182 glPixelStorei (GL_UNPACK_ROW_LENGTH, 0);
183 glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
184 }
185 else
186 {
187 /* starting with 10.5.5 (or 10.5.6), pple's nvidia driver corrupts textures */
188 /* when glTexSubImage is used, so do it the horribly slow way, */
189 /* reading/patching/uploading the full texture one each change */
190 int r;
191
192 glGetTexImage (GL_TEXTURE_2D, 0, GL_ALPHA, GL_UNSIGNED_BYTE, tc_temptile);
193
194 for (r = 0; r < h; ++r)
195 memcpy (tc_temptile + (y + r) * TC_WIDTH + x, (char *)bm + r * stride, w);
196
197 glTexImage2D (GL_TEXTURE_2D, 0, GL_ALPHA, TC_WIDTH, TC_HEIGHT, 0, GL_ALPHA, GL_UNSIGNED_BYTE, tc_temptile);
198 }
199}
200
160static void 201static void
161draw_glyph (PangoRenderer *renderer_, PangoFont *font, PangoGlyph glyph, double x, double y) 202draw_glyph (PangoRenderer *renderer_, PangoFont *font, PangoGlyph glyph, double x, double y)
162{ 203{
163 PangoOpenGLRenderer *renderer = PANGO_OPENGL_RENDERER (renderer_); 204 PangoOpenGLRenderer *renderer = PANGO_OPENGL_RENDERER (renderer_);
164 glyph_info *g; 205 glyph_info *g;
165 float x1, y1, x2, y2;
166 206
167 if (glyph & PANGO_GLYPH_UNKNOWN_FLAG) 207 if (glyph & PANGO_GLYPH_UNKNOWN_FLAG)
168 { 208 {
169 glyph = pango_opengl_get_unknown_glyph (font); 209 glyph = pango_opengl_get_unknown_glyph (font);
170 210
… …
172 glyph = PANGO_GLYPH_UNKNOWN_FLAG; 212 glyph = PANGO_GLYPH_UNKNOWN_FLAG;
173 } 213 }
174 214
175 g = _pango_opengl_font_get_cache_glyph_data (font, glyph); 215 g = _pango_opengl_font_get_cache_glyph_data (font, glyph);
176 216
177 if (!g) 217 if (!g || g->generation != tc_generation)
178 { 218 {
179 Glyph bm; 219 Glyph bm;
180 font_render_glyph (&bm, font, glyph); 220 font_render_glyph (&bm, font, glyph);
181 221
222 if (!g)
223 {
182 g = g_slice_new (glyph_info); 224 g = g_slice_new (glyph_info);
183 225
184 tc_get (&g->tex, bm.width, bm.height); 226 _pango_opengl_font_set_glyph_cache_destroy (font, (GDestroyNotify)free_glyph_info);
227 _pango_opengl_font_set_cache_glyph_data (font, glyph, g);
228 }
229
230 g->generation = tc_generation;
185 231
186 g->left = bm.left; 232 g->left = bm.left;
187 g->top = bm.top; 233 g->top = bm.top;
188 234
189 if (renderer->curtex) 235 tc_get (&g->tex, bm.width, bm.height);
190 {
191 glEnd ();
192 renderer->curtex = 0;
193 }
194 236
195 glBindTexture (GL_TEXTURE_2D, g->tex.name); 237 if (bm.width && bm.height)
196 glPixelStorei (GL_UNPACK_ROW_LENGTH, bm.stride); 238 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 } 239 }
205 240
206 x += g->left; 241 x += g->left;
207 y -= g->top; 242 y -= g->top;
208 243
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) 244 if (g->tex.name != renderer->key.texname)
215 { 245 {
216 if (renderer->curtex)
217 glEnd ();
218
219 glBindTexture (GL_TEXTURE_2D, g->tex.name);
220 renderer->curtex = g->tex.name; 246 renderer->key.texname = g->tex.name;
221 glBegin (GL_QUADS); 247 renderer->arr = rc_array (renderer->rc, &renderer->key);
222 } 248 }
223 249
224 glTexCoord2f (x1, y1); glVertex2i (x , y ); 250 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} 251}
229 252
230static void 253static void
231draw_trapezoid (PangoRenderer *renderer_, 254draw_trapezoid (PangoRenderer *renderer_,
232 PangoRenderPart part, 255 PangoRenderPart part,
… …
236 double y2, 259 double y2,
237 double x12, 260 double x12,
238 double x22) 261 double x22)
239{ 262{
240 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; 263 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_;
264 rc_key_t key = renderer->key;
265 rc_array_t *arr;
241 266
242 if (renderer->curtex) 267 key.mode = GL_QUADS;
243 { 268 key.format = GL_V2F;
244 glEnd (); 269 key.texname = 0;
245 renderer->curtex = 0;
246 }
247 270
248 glDisable (GL_TEXTURE_2D); 271 arr = rc_array (renderer->rc, &key);
249 272
250 glBegin (GL_QUADS); 273 rc_v2f (arr, x11, y1);
251 glVertex2d (x11, y1); 274 rc_v2f (arr, x21, y1);
252 glVertex2d (x12, y1); 275 rc_v2f (arr, x22, y2);
253 glVertex2d (x22, y2); 276 rc_v2f (arr, x12, y2);
254 glVertex2d (x21, y2);
255 glEnd ();
256
257 glEnable (GL_TEXTURE_2D);
258} 277}
259 278
260void 279void
261pango_opengl_render_layout_subpixel (PangoLayout *layout, 280pango_opengl_render_layout_subpixel (PangoLayout *layout,
281 rc_t *rc,
262 int x, int y, 282 int x, int y,
263 float r, float g, float b, float a) 283 float r, float g, float b, float a,
284 int flags)
264{ 285{
265 PangoContext *context; 286 PangoContext *context;
266 PangoFontMap *fontmap; 287 PangoFontMap *fontmap;
267 PangoRenderer *renderer; 288 PangoRenderer *renderer;
289 PangoOpenGLRenderer *gl;
268 290
269 context = pango_layout_get_context (layout); 291 context = pango_layout_get_context (layout);
270 fontmap = pango_context_get_font_map (context); 292 fontmap = pango_context_get_font_map (context);
271 renderer = _pango_opengl_font_map_get_renderer (PANGO_OPENGL_FONT_MAP (fontmap)); 293 renderer = _pango_opengl_font_map_get_renderer (PANGO_OPENGL_FONT_MAP (fontmap));
272
273 PANGO_OPENGL_RENDERER (renderer)->r = r; 294 gl = PANGO_OPENGL_RENDERER (renderer);
274 PANGO_OPENGL_RENDERER (renderer)->g = g; 295
275 PANGO_OPENGL_RENDERER (renderer)->b = b; 296 gl->rc = rc;
276 PANGO_OPENGL_RENDERER (renderer)->a = a; 297 gl->r = r;
298 gl->g = g;
299 gl->b = b;
300 gl->a = a;
301 gl->flags = flags;
277 302
278 pango_renderer_draw_layout (renderer, layout, x, y); 303 pango_renderer_draw_layout (renderer, layout, x, y);
279} 304}
280 305
281void 306void
282pango_opengl_render_layout (PangoLayout *layout, 307pango_opengl_render_layout (PangoLayout *layout,
308 rc_t *rc,
283 int x, int y, 309 int x, int y,
284 float r, float g, float b, float a) 310 float r, float g, float b, float a,
311 int flags)
285{ 312{
286 pango_opengl_render_layout_subpixel (layout, x * PANGO_SCALE, y * PANGO_SCALE, r, g, b, a); 313 pango_opengl_render_layout_subpixel (
314 layout, rc, x * PANGO_SCALE, y * PANGO_SCALE, r, g, b, a, flags
315 );
287} 316}
288 317
289static void 318static void
290pango_opengl_renderer_init (PangoOpenGLRenderer *renderer) 319pango_opengl_renderer_init (PangoOpenGLRenderer *renderer)
291{ 320{
321 memset (&renderer->key, 0, sizeof (rc_key_t));
322
292 renderer->r = 1.; 323 renderer->r = 1.;
293 renderer->g = 1.; 324 renderer->g = 1.;
294 renderer->b = 1.; 325 renderer->b = 1.;
295 renderer->a = 1.; 326 renderer->a = 1.;
296} 327}
297 328
298static void 329static void
299prepare_run (PangoRenderer *renderer, PangoLayoutRun *run) 330prepare_run (PangoRenderer *renderer, PangoLayoutRun *run)
300{ 331{
301 PangoOpenGLRenderer *glrenderer = (PangoOpenGLRenderer *)renderer; 332 PangoOpenGLRenderer *gl = (PangoOpenGLRenderer *)renderer;
302 PangoColor *fg = 0; 333 PangoColor *fg = 0;
303 GSList *l; 334 GSList *l;
335 unsigned char r, g, b, a;
304 336
305 renderer->underline = PANGO_UNDERLINE_NONE; 337 renderer->underline = PANGO_UNDERLINE_NONE;
306 renderer->strikethrough = FALSE; 338 renderer->strikethrough = FALSE;
339
340 gl->key.mode = GL_QUADS;
341 gl->key.format = 0; // glyphs
342 gl->key.texname = 0;
307 343
308 for (l = run->item->analysis.extra_attrs; l; l = l->next) 344 for (l = run->item->analysis.extra_attrs; l; l = l->next)
309 { 345 {
310 PangoAttribute *attr = l->data; 346 PangoAttribute *attr = l->data;
311 347
… …
327 break; 363 break;
328 } 364 }
329 } 365 }
330 366
331 if (fg) 367 if (fg)
332 glColor4f (fg->red / 65535., fg->green / 65535., fg->blue / 65535., glrenderer->a); 368 {
369 r = fg->red * (255.f / 65535.f);
370 g = fg->green * (255.f / 65535.f);
371 b = fg->blue * (255.f / 65535.f);
372 }
333 else 373 else
334 glColor4f (glrenderer->r, glrenderer->g, glrenderer->b, glrenderer->a); 374 {
375 r = gl->r * 255.f;
376 g = gl->g * 255.f;
377 b = gl->b * 255.f;
378 }
379
380 a = gl->a * 255.f;
381
382 if (gl->flags & FLAG_INVERSE)
383 {
384 r ^= 0xffU;
385 g ^= 0xffU;
386 b ^= 0xffU;
387 }
388
389 gl->key.r = r;
390 gl->key.g = g;
391 gl->key.b = b;
392 gl->key.a = a;
335} 393}
336 394
337static void 395static void
338draw_begin (PangoRenderer *renderer_) 396draw_begin (PangoRenderer *renderer_)
339{ 397{
340 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; 398 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} 399}
352 400
353static void 401static void
354draw_end (PangoRenderer *renderer_) 402draw_end (PangoRenderer *renderer_)
355{ 403{
356 PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; 404 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} 405}
365 406
366static void 407static void
367pango_opengl_renderer_class_init (PangoOpenGLRendererClass *klass) 408pango_opengl_renderer_class_init (PangoOpenGLRendererClass *klass)
368{ 409{

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