| … | |
… | |
| 159 | { |
159 | { |
| 160 | tc_put (&g->tex); |
160 | tc_put (&g->tex); |
| 161 | g_slice_free (glyph_info, g); |
161 | g_slice_free (glyph_info, g); |
| 162 | } |
162 | } |
| 163 | |
163 | |
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164 | static char *apple_nvidia_bug_buf; |
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165 | |
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166 | static void |
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167 | apple_nvidia_bug (int enable) |
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168 | { |
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169 | g_slice_free1 (TC_WIDTH * TC_HEIGHT, apple_nvidia_bug_buf); |
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170 | apple_nvidia_bug_buf = enable ? g_slice_alloc (TC_WIDTH * TC_HEIGHT) : 0; |
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171 | } |
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172 | |
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173 | static void |
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174 | tex_update (int name, int x, int y, int w, int stride, int h, void *bm) |
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175 | { |
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176 | glBindTexture (GL_TEXTURE_2D, name); |
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177 | |
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178 | if (!apple_nvidia_bug_buf) |
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179 | { |
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180 | glPixelStorei (GL_UNPACK_ROW_LENGTH, stride); |
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181 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); |
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182 | glTexSubImage2D (GL_TEXTURE_2D, 0, x, y, w, h, GL_ALPHA, GL_UNSIGNED_BYTE, bm); |
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183 | glPixelStorei (GL_UNPACK_ROW_LENGTH, 0); |
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184 | glPixelStorei (GL_UNPACK_ALIGNMENT, 4); |
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185 | } |
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186 | else |
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187 | { |
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188 | /* starting with 10.5.5 (or 10.5.6), pple's nvidia driver corrupts textures */ |
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189 | /* when glTexSubImage is used, so do it the horribly slow way, */ |
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190 | /* reading/patching/uploading the full texture one each change */ |
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191 | int r; |
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192 | |
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193 | glGetTexImage (GL_TEXTURE_2D, 0, GL_ALPHA, GL_UNSIGNED_BYTE, apple_nvidia_bug_buf); |
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194 | |
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195 | for (r = 0; r < h; ++r) |
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196 | memcpy ((char *)apple_nvidia_bug_buf + (y + r) * TC_WIDTH + x, (char *)bm + r * stride, w); |
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197 | |
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198 | glTexImage2D (GL_TEXTURE_2D, 0, GL_ALPHA, TC_WIDTH, TC_HEIGHT, 0, GL_ALPHA, GL_UNSIGNED_BYTE, apple_nvidia_bug_buf); |
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199 | } |
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200 | } |
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201 | |
| 164 | static void |
202 | static void |
| 165 | draw_glyph (PangoRenderer *renderer_, PangoFont *font, PangoGlyph glyph, double x, double y) |
203 | draw_glyph (PangoRenderer *renderer_, PangoFont *font, PangoGlyph glyph, double x, double y) |
| 166 | { |
204 | { |
| 167 | PangoOpenGLRenderer *renderer = PANGO_OPENGL_RENDERER (renderer_); |
205 | PangoOpenGLRenderer *renderer = PANGO_OPENGL_RENDERER (renderer_); |
| 168 | glyph_info *g; |
206 | glyph_info *g; |
| … | |
… | |
| 196 | g->top = bm.top; |
234 | g->top = bm.top; |
| 197 | |
235 | |
| 198 | tc_get (&g->tex, bm.width, bm.height); |
236 | tc_get (&g->tex, bm.width, bm.height); |
| 199 | |
237 | |
| 200 | if (bm.width && bm.height) |
238 | if (bm.width && bm.height) |
| 201 | { |
239 | tex_update (g->tex.name, g->tex.x, g->tex.y, bm.width, bm.stride, bm.height, bm.bitmap); |
| 202 | glBindTexture (GL_TEXTURE_2D, g->tex.name); |
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| 203 | glPixelStorei (GL_UNPACK_ROW_LENGTH, bm.stride); |
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| 204 | glPixelStorei (GL_UNPACK_ALIGNMENT, 1); |
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| 205 | glTexSubImage2D (GL_TEXTURE_2D, 0, g->tex.x, g->tex.y, bm.width, bm.height, GL_ALPHA, GL_UNSIGNED_BYTE, bm.bitmap); |
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| 206 | glPixelStorei (GL_UNPACK_ROW_LENGTH, 0); |
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| 207 | glPixelStorei (GL_UNPACK_ALIGNMENT, 4); |
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| 208 | } |
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| 209 | } |
240 | } |
| 210 | |
241 | |
| 211 | x += g->left; |
242 | x += g->left; |
| 212 | y -= g->top; |
243 | y -= g->top; |
| 213 | |
244 | |
