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35 | |
35 | |
36 | struct _PangoOpenGLRenderer |
36 | struct _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 |
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40 | int flags; |
40 | GLuint curtex; // current texture |
41 | GLuint curtex; // current texture |
41 | }; |
42 | }; |
42 | |
43 | |
43 | G_DEFINE_TYPE (PangoOpenGLRenderer, pango_opengl_renderer, PANGO_TYPE_RENDERER) |
44 | G_DEFINE_TYPE (PangoOpenGLRenderer, pango_opengl_renderer, PANGO_TYPE_RENDERER) |
44 | |
45 | |
… | |
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188 | |
189 | |
189 | _pango_opengl_font_set_glyph_cache_destroy (font, (GDestroyNotify)free_glyph_info); |
190 | _pango_opengl_font_set_glyph_cache_destroy (font, (GDestroyNotify)free_glyph_info); |
190 | _pango_opengl_font_set_cache_glyph_data (font, glyph, g); |
191 | _pango_opengl_font_set_cache_glyph_data (font, glyph, g); |
191 | } |
192 | } |
192 | |
193 | |
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194 | if (renderer->curtex) |
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195 | glEnd (); |
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196 | |
193 | tc_get (&g->tex, bm.width, bm.height); |
197 | tc_get (&g->tex, bm.width, bm.height); |
194 | |
198 | |
195 | g->left = bm.left; |
199 | g->left = bm.left; |
196 | g->top = bm.top; |
200 | g->top = bm.top; |
197 | |
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198 | if (renderer->curtex) |
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199 | { |
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200 | glEnd (); |
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201 | renderer->curtex = 0; |
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202 | } |
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203 | |
201 | |
204 | glBindTexture (GL_TEXTURE_2D, g->tex.name); |
202 | glBindTexture (GL_TEXTURE_2D, g->tex.name); |
205 | glPixelStorei (GL_UNPACK_ROW_LENGTH, bm.stride); |
203 | glPixelStorei (GL_UNPACK_ROW_LENGTH, bm.stride); |
206 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); |
204 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); |
207 | glTexSubImage2D (GL_TEXTURE_2D, 0, g->tex.x, g->tex.y, bm.width, bm.height, GL_ALPHA, GL_UNSIGNED_BYTE, bm.bitmap); |
205 | glTexSubImage2D (GL_TEXTURE_2D, 0, g->tex.x, g->tex.y, bm.width, bm.height, GL_ALPHA, GL_UNSIGNED_BYTE, bm.bitmap); |
208 | glPixelStorei (GL_UNPACK_ROW_LENGTH, 0); |
206 | glPixelStorei (GL_UNPACK_ROW_LENGTH, 0); |
209 | glPixelStorei (GL_UNPACK_ALIGNMENT, 4); |
207 | glPixelStorei (GL_UNPACK_ALIGNMENT, 4); |
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208 | |
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209 | renderer->curtex = g->tex.name; |
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210 | glBegin (GL_QUADS); |
210 | } |
211 | } |
211 | |
212 | |
212 | x += g->left; |
213 | x += g->left; |
213 | y -= g->top; |
214 | y -= g->top; |
214 | |
215 | |
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222 | if (renderer->curtex) |
223 | if (renderer->curtex) |
223 | glEnd (); |
224 | glEnd (); |
224 | |
225 | |
225 | glBindTexture (GL_TEXTURE_2D, g->tex.name); |
226 | glBindTexture (GL_TEXTURE_2D, g->tex.name); |
226 | renderer->curtex = g->tex.name; |
227 | renderer->curtex = g->tex.name; |
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228 | |
227 | glBegin (GL_QUADS); |
229 | glBegin (GL_QUADS); |
228 | } |
230 | } |
229 | |
231 | |
230 | glTexCoord2f (x1, y1); glVertex2i (x , y ); |
232 | glTexCoord2f (x1, y1); glVertex2i (x , y ); |
231 | glTexCoord2f (x2, y1); glVertex2i (x + g->tex.w, y ); |
233 | glTexCoord2f (x2, y1); glVertex2i (x + g->tex.w, y ); |
… | |
… | |
253 | |
255 | |
254 | glDisable (GL_TEXTURE_2D); |
256 | glDisable (GL_TEXTURE_2D); |
255 | |
257 | |
256 | glBegin (GL_QUADS); |
258 | glBegin (GL_QUADS); |
257 | glVertex2d (x11, y1); |
259 | glVertex2d (x11, y1); |
258 | glVertex2d (x12, y1); |
260 | glVertex2d (x21, y1); |
259 | glVertex2d (x22, y2); |
261 | glVertex2d (x22, y2); |
260 | glVertex2d (x21, y2); |
262 | glVertex2d (x12, y2); |
261 | glEnd (); |
263 | glEnd (); |
262 | |
264 | |
263 | glEnable (GL_TEXTURE_2D); |
265 | glEnable (GL_TEXTURE_2D); |
264 | } |
266 | } |
265 | |
267 | |
266 | void |
268 | void |
267 | pango_opengl_render_layout_subpixel (PangoLayout *layout, |
269 | pango_opengl_render_layout_subpixel (PangoLayout *layout, |
268 | int x, int y, |
270 | int x, int y, |
269 | float r, float g, float b, float a) |
271 | float r, float g, float b, float a, |
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272 | int flags) |
270 | { |
273 | { |
271 | PangoContext *context; |
274 | PangoContext *context; |
272 | PangoFontMap *fontmap; |
275 | PangoFontMap *fontmap; |
273 | PangoRenderer *renderer; |
276 | PangoRenderer *renderer; |
274 | |
277 | |
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278 | |
281 | |
279 | PANGO_OPENGL_RENDERER (renderer)->r = r; |
282 | PANGO_OPENGL_RENDERER (renderer)->r = r; |
280 | PANGO_OPENGL_RENDERER (renderer)->g = g; |
283 | PANGO_OPENGL_RENDERER (renderer)->g = g; |
281 | PANGO_OPENGL_RENDERER (renderer)->b = b; |
284 | PANGO_OPENGL_RENDERER (renderer)->b = b; |
282 | PANGO_OPENGL_RENDERER (renderer)->a = a; |
285 | PANGO_OPENGL_RENDERER (renderer)->a = a; |
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286 | PANGO_OPENGL_RENDERER (renderer)->flags = flags; |
283 | |
287 | |
284 | pango_renderer_draw_layout (renderer, layout, x, y); |
288 | pango_renderer_draw_layout (renderer, layout, x, y); |
285 | } |
289 | } |
286 | |
290 | |
287 | void |
291 | void |
288 | pango_opengl_render_layout (PangoLayout *layout, |
292 | pango_opengl_render_layout (PangoLayout *layout, |
289 | int x, int y, |
293 | int x, int y, |
290 | float r, float g, float b, float a) |
294 | float r, float g, float b, float a, |
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295 | int flags) |
291 | { |
296 | { |
292 | pango_opengl_render_layout_subpixel (layout, x * PANGO_SCALE, y * PANGO_SCALE, r, g, b, a); |
297 | pango_opengl_render_layout_subpixel (layout, x * PANGO_SCALE, y * PANGO_SCALE, r, g, b, a, flags); |
293 | } |
298 | } |
294 | |
299 | |
295 | static void |
300 | static void |
296 | pango_opengl_renderer_init (PangoOpenGLRenderer *renderer) |
301 | pango_opengl_renderer_init (PangoOpenGLRenderer *renderer) |
297 | { |
302 | { |
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305 | prepare_run (PangoRenderer *renderer, PangoLayoutRun *run) |
310 | prepare_run (PangoRenderer *renderer, PangoLayoutRun *run) |
306 | { |
311 | { |
307 | PangoOpenGLRenderer *glrenderer = (PangoOpenGLRenderer *)renderer; |
312 | PangoOpenGLRenderer *glrenderer = (PangoOpenGLRenderer *)renderer; |
308 | PangoColor *fg = 0; |
313 | PangoColor *fg = 0; |
309 | GSList *l; |
314 | GSList *l; |
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315 | unsigned char r, g, b, a; |
310 | |
316 | |
311 | renderer->underline = PANGO_UNDERLINE_NONE; |
317 | renderer->underline = PANGO_UNDERLINE_NONE; |
312 | renderer->strikethrough = FALSE; |
318 | renderer->strikethrough = FALSE; |
313 | |
319 | |
314 | for (l = run->item->analysis.extra_attrs; l; l = l->next) |
320 | for (l = run->item->analysis.extra_attrs; l; l = l->next) |
… | |
… | |
333 | break; |
339 | break; |
334 | } |
340 | } |
335 | } |
341 | } |
336 | |
342 | |
337 | if (fg) |
343 | if (fg) |
338 | glColor4f (fg->red / 65535., fg->green / 65535., fg->blue / 65535., glrenderer->a); |
344 | { |
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345 | r = fg->red * (255.f / 65535.f); |
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346 | g = fg->green * (255.f / 65535.f); |
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347 | b = fg->blue * (255.f / 65535.f); |
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348 | } |
339 | else |
349 | else |
340 | glColor4f (glrenderer->r, glrenderer->g, glrenderer->b, glrenderer->a); |
350 | { |
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351 | r = glrenderer->r * 255.f; |
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352 | g = glrenderer->g * 255.f; |
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353 | b = glrenderer->b * 255.f; |
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354 | } |
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355 | |
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356 | a = glrenderer->a * 255.f; |
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357 | |
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358 | if (glrenderer->flags & FLAG_INVERSE) |
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359 | { |
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360 | r ^= 0xffU; |
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361 | g ^= 0xffU; |
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362 | b ^= 0xffU; |
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363 | } |
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364 | |
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365 | glColor4ub (r, g, b, a); |
341 | } |
366 | } |
342 | |
367 | |
343 | static void |
368 | static void |
344 | draw_begin (PangoRenderer *renderer_) |
369 | draw_begin (PangoRenderer *renderer_) |
345 | { |
370 | { |