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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 (renderer->arr, 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 (renderer->arr, x2, y1, x + g->tex.w, y , 0); |
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225 | rc_t2f_v3f (renderer->arr, x2, y2, x + g->tex.w, y + g->tex.h, 0); |
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226 | rc_t2f_v3f (renderer->arr, 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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252 | rc_v2f (arr, 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; |
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266 | context = pango_layout_get_context (layout); |
258 | context = pango_layout_get_context (layout); |
267 | fontmap = pango_context_get_font_map (context); |
259 | fontmap = pango_context_get_font_map (context); |
268 | 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)); |
269 | gl = PANGO_OPENGL_RENDERER (renderer); |
261 | gl = PANGO_OPENGL_RENDERER (renderer); |
270 | |
262 | |
271 | gl->rc = rc_alloc (); |
263 | gl->rc = rc; |
272 | gl->r = r; |
264 | gl->r = r; |
273 | gl->g = g; |
265 | gl->g = g; |
274 | gl->b = b; |
266 | gl->b = b; |
275 | gl->a = a; |
267 | gl->a = a; |
276 | gl->flags = flags; |
268 | gl->flags = flags; |
277 | |
269 | |
278 | glEnable (GL_TEXTURE_2D); |
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279 | glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); |
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280 | glEnable (GL_BLEND); |
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281 | gl_BlendFuncSeparate (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, |
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282 | GL_ONE , GL_ONE_MINUS_SRC_ALPHA); |
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283 | glEnable (GL_ALPHA_TEST); |
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284 | glAlphaFunc (GL_GREATER, 0.01f); |
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285 | |
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286 | pango_renderer_draw_layout (renderer, layout, x, y); |
270 | pango_renderer_draw_layout (renderer, layout, x, y); |
287 | |
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288 | rc_draw (gl->rc); |
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289 | |
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290 | glDisable (GL_ALPHA_TEST); |
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291 | glDisable (GL_BLEND); |
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292 | glDisable (GL_TEXTURE_2D); |
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293 | |
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294 | rc_free (gl->rc); |
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295 | } |
271 | } |
296 | |
272 | |
297 | void |
273 | void |
298 | pango_opengl_render_layout (PangoLayout *layout, |
274 | pango_opengl_render_layout (PangoLayout *layout, |
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275 | rc_t *rc, |
299 | int x, int y, |
276 | int x, int y, |
300 | float r, float g, float b, float a, |
277 | float r, float g, float b, float a, |
301 | int flags) |
278 | int flags) |
302 | { |
279 | { |
303 | 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 | ); |
304 | } |
283 | } |
305 | |
284 | |
306 | static void |
285 | static void |
307 | pango_opengl_renderer_init (PangoOpenGLRenderer *renderer) |
286 | pango_opengl_renderer_init (PangoOpenGLRenderer *renderer) |
308 | { |
287 | { |
… | |
… | |
324 | |
303 | |
325 | renderer->underline = PANGO_UNDERLINE_NONE; |
304 | renderer->underline = PANGO_UNDERLINE_NONE; |
326 | renderer->strikethrough = FALSE; |
305 | renderer->strikethrough = FALSE; |
327 | |
306 | |
328 | gl->key.mode = GL_QUADS; |
307 | gl->key.mode = GL_QUADS; |
329 | gl->key.format = GL_T2F_V3F; |
308 | gl->key.format = 0; // glyphs |
330 | gl->key.texname = 0; |
309 | gl->key.texname = 0; |
331 | |
310 | |
332 | for (l = run->item->analysis.extra_attrs; l; l = l->next) |
311 | for (l = run->item->analysis.extra_attrs; l; l = l->next) |
333 | { |
312 | { |
334 | PangoAttribute *attr = l->data; |
313 | PangoAttribute *attr = l->data; |