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164 | static void |
164 | static void |
165 | draw_glyph (PangoRenderer *renderer_, PangoFont *font, PangoGlyph glyph, double x, double y) |
165 | draw_glyph (PangoRenderer *renderer_, PangoFont *font, PangoGlyph glyph, double x, double y) |
166 | { |
166 | { |
167 | PangoOpenGLRenderer *renderer = PANGO_OPENGL_RENDERER (renderer_); |
167 | PangoOpenGLRenderer *renderer = PANGO_OPENGL_RENDERER (renderer_); |
168 | glyph_info *g; |
168 | glyph_info *g; |
169 | float x1, y1, x2, y2; |
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170 | |
169 | |
171 | if (glyph & PANGO_GLYPH_UNKNOWN_FLAG) |
170 | if (glyph & PANGO_GLYPH_UNKNOWN_FLAG) |
172 | { |
171 | { |
173 | glyph = pango_opengl_get_unknown_glyph (font); |
172 | glyph = pango_opengl_get_unknown_glyph (font); |
174 | |
173 | |
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… | |
207 | } |
206 | } |
208 | |
207 | |
209 | x += g->left; |
208 | x += g->left; |
210 | y -= g->top; |
209 | y -= g->top; |
211 | |
210 | |
212 | x1 = g->tex.x * (1. / TC_WIDTH ); |
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213 | y1 = g->tex.y * (1. / TC_HEIGHT); |
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214 | x2 = g->tex.w * (1. / TC_WIDTH ) + x1; |
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215 | y2 = g->tex.h * (1. / TC_HEIGHT) + y1; |
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216 | |
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217 | if (g->tex.name != renderer->key.texname) |
211 | if (g->tex.name != renderer->key.texname) |
218 | { |
212 | { |
219 | renderer->key.texname = g->tex.name; |
213 | renderer->key.texname = g->tex.name; |
220 | renderer->arr = rc_array (renderer->rc, &renderer->key); |
214 | renderer->arr = rc_array (renderer->rc, &renderer->key); |
221 | } |
215 | } |
222 | |
216 | |
223 | rc_t2f_v3f (x1, y1, x , y , 0); |
217 | rc_glyph (renderer->arr, g->tex.x, g->tex.y, g->tex.w, g->tex.h, x, y); |
224 | rc_t2f_v3f (x2, y1, x + g->tex.w, y , 0); |
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225 | rc_t2f_v3f (x2, y2, x + g->tex.w, y + g->tex.h, 0); |
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226 | rc_t2f_v3f (x1, y2, x , y + g->tex.h, 0); |
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227 | } |
218 | } |
228 | |
219 | |
229 | static void |
220 | static void |
230 | draw_trapezoid (PangoRenderer *renderer_, |
221 | draw_trapezoid (PangoRenderer *renderer_, |
231 | PangoRenderPart part, |
222 | PangoRenderPart part, |
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244 | key.format = GL_V2F; |
235 | key.format = GL_V2F; |
245 | key.texname = 0; |
236 | key.texname = 0; |
246 | |
237 | |
247 | arr = rc_array (renderer->rc, &key); |
238 | arr = rc_array (renderer->rc, &key); |
248 | |
239 | |
249 | rc_v2f (x11, y1); |
240 | rc_v2f (arr, x11, y1); |
250 | rc_v2f (x21, y1); |
241 | rc_v2f (arr, x21, y1); |
251 | rc_v2f (x22, y2); |
242 | rc_v2f (arr, x22, y2); |
252 | rc_v2f (x12, y2); |
243 | rc_v2f (arr, x12, y2); |
253 | } |
244 | } |
254 | |
245 | |
255 | void |
246 | void |
256 | pango_opengl_render_layout_subpixel (PangoLayout *layout, |
247 | pango_opengl_render_layout_subpixel (PangoLayout *layout, |
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248 | rc_t *rc, |
257 | int x, int y, |
249 | int x, int y, |
258 | float r, float g, float b, float a, |
250 | float r, float g, float b, float a, |
259 | int flags) |
251 | int flags) |
260 | { |
252 | { |
261 | PangoContext *context; |
253 | PangoContext *context; |
262 | PangoFontMap *fontmap; |
254 | PangoFontMap *fontmap; |
263 | PangoRenderer *renderer; |
255 | PangoRenderer *renderer; |
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256 | PangoOpenGLRenderer *gl; |
264 | |
257 | |
265 | context = pango_layout_get_context (layout); |
258 | context = pango_layout_get_context (layout); |
266 | fontmap = pango_context_get_font_map (context); |
259 | fontmap = pango_context_get_font_map (context); |
267 | renderer = _pango_opengl_font_map_get_renderer (PANGO_OPENGL_FONT_MAP (fontmap)); |
260 | renderer = _pango_opengl_font_map_get_renderer (PANGO_OPENGL_FONT_MAP (fontmap)); |
268 | |
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269 | PANGO_OPENGL_RENDERER (renderer)->r = r; |
261 | gl = PANGO_OPENGL_RENDERER (renderer); |
270 | PANGO_OPENGL_RENDERER (renderer)->g = g; |
262 | |
271 | PANGO_OPENGL_RENDERER (renderer)->b = b; |
263 | gl->rc = rc; |
272 | PANGO_OPENGL_RENDERER (renderer)->a = a; |
264 | gl->r = r; |
273 | PANGO_OPENGL_RENDERER (renderer)->flags = flags; |
265 | gl->g = g; |
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266 | gl->b = b; |
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267 | gl->a = a; |
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268 | gl->flags = flags; |
274 | |
269 | |
275 | pango_renderer_draw_layout (renderer, layout, x, y); |
270 | pango_renderer_draw_layout (renderer, layout, x, y); |
276 | } |
271 | } |
277 | |
272 | |
278 | void |
273 | void |
279 | pango_opengl_render_layout (PangoLayout *layout, |
274 | pango_opengl_render_layout (PangoLayout *layout, |
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275 | rc_t *rc, |
280 | int x, int y, |
276 | int x, int y, |
281 | float r, float g, float b, float a, |
277 | float r, float g, float b, float a, |
282 | int flags) |
278 | int flags) |
283 | { |
279 | { |
284 | pango_opengl_render_layout_subpixel (layout, x * PANGO_SCALE, y * PANGO_SCALE, r, g, b, a, flags); |
280 | pango_opengl_render_layout_subpixel ( |
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281 | layout, rc, x * PANGO_SCALE, y * PANGO_SCALE, r, g, b, a, flags |
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282 | ); |
285 | } |
283 | } |
286 | |
284 | |
287 | static void |
285 | static void |
288 | pango_opengl_renderer_init (PangoOpenGLRenderer *renderer) |
286 | pango_opengl_renderer_init (PangoOpenGLRenderer *renderer) |
289 | { |
287 | { |
… | |
… | |
296 | } |
294 | } |
297 | |
295 | |
298 | static void |
296 | static void |
299 | prepare_run (PangoRenderer *renderer, PangoLayoutRun *run) |
297 | prepare_run (PangoRenderer *renderer, PangoLayoutRun *run) |
300 | { |
298 | { |
301 | PangoOpenGLRenderer *glrenderer = (PangoOpenGLRenderer *)renderer; |
299 | PangoOpenGLRenderer *gl = (PangoOpenGLRenderer *)renderer; |
302 | PangoColor *fg = 0; |
300 | PangoColor *fg = 0; |
303 | GSList *l; |
301 | GSList *l; |
304 | unsigned char r, g, b, a; |
302 | unsigned char r, g, b, a; |
305 | |
303 | |
306 | renderer->underline = PANGO_UNDERLINE_NONE; |
304 | renderer->underline = PANGO_UNDERLINE_NONE; |
307 | renderer->strikethrough = FALSE; |
305 | renderer->strikethrough = FALSE; |
308 | |
306 | |
309 | renderer->key.mode = GL_QUADS; |
307 | gl->key.mode = GL_QUADS; |
310 | renderer->key.format = GL_T2F_V2F; |
308 | gl->key.format = 0; // glyphs |
311 | renderer->key.texname = 0; |
309 | gl->key.texname = 0; |
312 | |
310 | |
313 | for (l = run->item->analysis.extra_attrs; l; l = l->next) |
311 | for (l = run->item->analysis.extra_attrs; l; l = l->next) |
314 | { |
312 | { |
315 | PangoAttribute *attr = l->data; |
313 | PangoAttribute *attr = l->data; |
316 | |
314 | |
… | |
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339 | g = fg->green * (255.f / 65535.f); |
337 | g = fg->green * (255.f / 65535.f); |
340 | b = fg->blue * (255.f / 65535.f); |
338 | b = fg->blue * (255.f / 65535.f); |
341 | } |
339 | } |
342 | else |
340 | else |
343 | { |
341 | { |
344 | r = glrenderer->r * 255.f; |
342 | r = gl->r * 255.f; |
345 | g = glrenderer->g * 255.f; |
343 | g = gl->g * 255.f; |
346 | b = glrenderer->b * 255.f; |
344 | b = gl->b * 255.f; |
347 | } |
345 | } |
348 | |
346 | |
349 | a = glrenderer->a * 255.f; |
347 | a = gl->a * 255.f; |
350 | |
348 | |
351 | if (glrenderer->flags & FLAG_INVERSE) |
349 | if (gl->flags & FLAG_INVERSE) |
352 | { |
350 | { |
353 | r ^= 0xffU; |
351 | r ^= 0xffU; |
354 | g ^= 0xffU; |
352 | g ^= 0xffU; |
355 | b ^= 0xffU; |
353 | b ^= 0xffU; |
356 | } |
354 | } |
357 | |
355 | |
358 | renderer->key.r = r; |
356 | gl->key.r = r; |
359 | renderer->key.g = g; |
357 | gl->key.g = g; |
360 | renderer->key.b = b; |
358 | gl->key.b = b; |
361 | renderer->key.a = a; |
359 | gl->key.a = a; |
362 | } |
360 | } |
363 | |
361 | |
364 | static void |
362 | static void |
365 | draw_begin (PangoRenderer *renderer_) |
363 | draw_begin (PangoRenderer *renderer_) |
366 | { |
364 | { |
367 | PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; |
365 | PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; |
368 | |
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369 | glEnable (GL_TEXTURE_2D); |
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370 | glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); |
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371 | glEnable (GL_BLEND); |
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372 | gl_BlendFuncSeparate (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, |
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373 | GL_ONE , GL_ONE_MINUS_SRC_ALPHA); |
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374 | glEnable (GL_ALPHA_TEST); |
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375 | glAlphaFunc (GL_GREATER, 0.01f); |
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376 | } |
366 | } |
377 | |
367 | |
378 | static void |
368 | static void |
379 | draw_end (PangoRenderer *renderer_) |
369 | draw_end (PangoRenderer *renderer_) |
380 | { |
370 | { |
381 | PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; |
371 | PangoOpenGLRenderer *renderer = (PangoOpenGLRenderer *)renderer_; |
382 | |
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383 | rc_draw (renderer->rc); |
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384 | |
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385 | glDisable (GL_ALPHA_TEST); |
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386 | glDisable (GL_BLEND); |
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387 | glDisable (GL_TEXTURE_2D); |
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388 | } |
372 | } |
389 | |
373 | |
390 | static void |
374 | static void |
391 | pango_opengl_renderer_class_init (PangoOpenGLRendererClass *klass) |
375 | pango_opengl_renderer_class_init (PangoOpenGLRendererClass *klass) |
392 | { |
376 | { |