| Summary: | [openvg] VG_DRAW_IMAGE_MULTIPLY does not work for alpha 1.0 | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Andreas Betz <andreas.betz> |
| Component: | Other | Assignee: | mesa-dev |
| Status: | RESOLVED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | CC: | jfonseca, zackr |
| Version: | git | ||
| Hardware: | x86 (IA32) | ||
| OS: | Windows (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
Was this with llvmpipe? Does softpipe behave differently? this was with both pipes ... but i seems that it is fixed by now - sorry for not closing the ticket |
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If i draw an image with the image mode VG_DRAW_IMAGE_MULTIPLY the alpha value behaves strange. If alpha value is 1.0f the image is invisible. If i set the alpha value to e.g. 0.9999f then it is drawn correctly and can be color transformed with VG_COLOR_TRANSFORM. E.g. the following code: VGPaint colorPaint = vgCreatePaint(); vgSeti(VG_IMAGE_MODE, VG_DRAW_IMAGE_MULTIPLY); VGfloat color[4] = {1.0f, 1.0f ,1.0f, 0.9999f}; vgSetParameterfv(colorPaint, VG_PAINT_COLOR, 4, color); vgSetPaint(colorPaint, VG_FILL_PATH); #ifdef OPENVG_VERSION_1_1 vgSeti(VG_COLOR_TRANSFORM, VG_TRUE); #endif vgDrawImage(m_image);