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* Make gradients beautiful againRomain Guy2012-09-261-0/+5
| | | | | | | | | | | | | | | | | | | Bug #7239634 This change passes two matrices to the vertex shader instead of one. We used to compute the final MVP matrix on the CPU to minimize the number of operations in the vertex shaders. Shader compilers are however smart enough to perform this optimization for us. Since we need the MV matrix to properly compute gradients dithering, this change splits the MVP matrix into two. This has the advantage of removing one matrix multiplication per drawing operation on the CPU. The SGX 540 shader compiler produces the same number of instructions in both cases. There is no penalty hit with having two matrices instead of one. We also send so few vertices per frame that it does not matter very much. Change-Id: I17d47ac4772615418e0e1885b97493d31435a936
* Polygonal rendering of simple fill shapesChris Craik2012-09-201-4/+4
| | | | | | bug:4419017 Change-Id: If0428e1732139786cba15f54b285d880e4a56b89
* Fix modulation and gamma correction issuesRomain Guy2012-09-141-2/+1
| | | | | | | | | | | | | | | | | | | | | | | Modulation is normally enabled in a shader when drawing with an alpha mask (A8 texture.) Modulation is used to do one of two things: - Colorize the primitive (to draw text in red for instance) - Apply extra translucency (50% translucent circle filled with a bitmap) The current implementation has four issues: 1. Unnecessary work is performed by assigning the modulation color to vec4 fragColor early in the shader 2. The modulation color's alpha is applied twice when the primitive is drawn with an SkShader 3. The decision to modulate is wrong and triggers when any of the RGB channels is < 1.0. Only the alpha channel needs to be taken into account to make the decision 4. Gamma correction is not applied properly This change addresses all four issues above. Change-Id: I73fcc74efc4b094bf2d1b835f10ffaa2ea4b9eb9
* Varying-based AA rect drawingChris Craik2012-09-051-0/+5
| | | | | | | | | | | | Instead of calculating opacity from relative position in the shader, use a shader varying to do this computation for us. bug:5045101 Also adds a test to HwAccelerationTest to show incorrect antialiasing in scaled drawAARect / boundarySize calculation. Change-Id: Icdc41acb01dc10ce354834f8389a5aed2f439162
* Improve gradientsRomain Guy2012-07-311-2/+7
| | | | | | Avoid using textures for common gradients (two stops from 0.0 to 1.0) Change-Id: Iff55d21b126c8cfc4cfb701669f2339c8f6b131a
* Add shader-based text gamma correctionRomain Guy2012-07-161-1/+10
| | | | | | | | To enable it, the system property ro.hwui.text_gamma_shader must be set to true. For testing, DEBUG_FONT_RENDERER_FORCE_SHADER_GAMMA can be set to 1 in libhwui/Debug.h. Change-Id: If345c6b71b67ecf1ef2e8847b71f30f3ef251a27
* Remove obsolete optimizationRomain Guy2012-07-121-2/+2
| | | | Change-Id: I2d43c009c62a7f4a4a2e0a6303bdfa692c4b8c8c
* Rename (IF_)LOGD(_IF) to (IF_)ALOGD(_IF) DO NOT MERGESteve Block2012-01-031-1/+1
| | | | | | | See https://android-git.corp.google.com/g/156016 Bug: 5449033 Change-Id: I4c4e33bb9df3e39e11cd985e193e6fbab4635298
* Reduce the number of active texture changesRomain Guy2011-12-131-0/+2
| | | | Change-Id: I94046bdfe20740c26c8183822e3002d692fde7c4
* Optimize state changesRomain Guy2011-12-121-2/+255
| | | | Change-Id: Iae59bc8dfd6427d0967472462cc1994987092827
* Keep shaders to render properlyRomain Guy2011-12-121-1/+13
| | | | | | | I don't know who's to blame, SGX or Tegra2 but one of those two GPUs is not following the OpenGL ES 2.0 spec. Change-Id: I2624e0efbc9c57d571c55c8b440a5e43f08a54f2
* Free up resources by deleting shaders early onRomain Guy2011-12-091-7/+6
| | | | Change-Id: I29a39775732c0a48d3e6823f7afa3e741cae8541
* Fix various hw-accelerated line/point bugsChet Haase2011-04-271-1/+1
| | | | | | | | | | | All accelerated lines are now rendered as quads. Hairlines used to be rendered as GL_LINES, but these lines don't render the same as our non-accelerated lines, so we're using quads for everything. Also, fixed a bug in the way that we were offsetting quads (and not offseting points) to ensure that our lines/points actuall start on the same pixels as Skia's. Change-Id: I51b923cc08a9858444c430ba07bc8aa0c83cbe6a
* Correctly release the OpenGL Canvas on EGL error.Romain Guy2010-12-071-0/+8
| | | | Change-Id: Ib31fd8445f7ce5f7aa7e0205de0e7db80d024fc2
* Optimize FBO drawing with regions.Romain Guy2010-11-021-3/+3
| | | | | | | | | This optimization is currently disabled until Launcher is modified to take advantage of it. The optimization can be enabled by turning on RENDER_LAYERS_AS_REGIONS in the OpenGLRenderer.h file. Change-Id: I2fdf59d0f4dc690a3d7f712173ab8db3848b27b1
* Optimize GLSL shaders.Romain Guy2010-10-111-4/+4
| | | | Change-Id: I9a5e01bced63d8da0c61330a543a2b805388a59d
* Moved all the rendering code to the new shader generator.Romain Guy2010-07-291-142/+23
| | | | | | | | | | | The generator supports features that are not yet implement in the renderer: color matrix, lighting, porterduff color blending and composite shaders. This change also adds support for repeated/mirrored non-power of 2 bitmap shaders. Change-Id: I903a11a070c0eb9cc8850a60ef305751e5b47234
* Generate shaders to cover all possible cases.Romain Guy2010-07-271-13/+15
| | | | | | | | | | With this change, all the vertex and fragment shaders used by the GL renderer are now generated based on a program description supplied by the caller. This allows the renderer to generate a large number of shaders without having to write all the possible combinations by hand. The generated shaders are stored in a program cache. Change-Id: If54d286e77ae021c724d42090da476df12a18ebb
* Add text rendering.Romain Guy2010-07-211-0/+6
| | | | Change-Id: Ibe5a9fa844d531b31b55e43de403a98d49f659b9
* Add support for linear gradients.Romain Guy2010-07-191-0/+11
| | | | Change-Id: Id15329da065045b3f06fdaed615f33cd57608496
* Add program for linear gradient.Romain Guy2010-07-161-0/+39
| | | | | | | | This change adds a new DrawLinearGradientProgram class to enable the drawing of linear gradients. Two new vertex and fragment shaders are introduced, based on DrawTextureProgram's shaders. Change-Id: I885afc076bb6cef8cd3962ae21a086fa6a03bf96
* Correctly support pre-multiplied alpha, optimizations, more stuff.Romain Guy2010-07-121-3/+25
| | | | | | | | | | | | | | Add support for the following drawing functions: - drawBitmap(int[]...) - drawPaint() Optimizes shader state changes by enabling/disabling attribute arrays only when needed. Adds quick rejects when drawing trivial shapes to avoid unnecessary OpenGL operations. Change-Id: Ic2c6c2ed1523d08a63a8c95601a1ec40b6c7fbc9
* Optimize shader binding changes.Romain Guy2010-07-121-1/+17
| | | | | | | This change also cleans up the internal API a little bit by using mat4 everywhere instead of float[16] (for the ortho matrix for instance.) Change-Id: I35924c7dc17bad17f30307118d5ed437c2ed37e0
* Remove math from the vertex shader.Romain Guy2010-07-091-12/+13
| | | | Change-Id: I02847a60a8734bf8b3d29ec12e76297795095e38
* Reduced the complexity of layers composition.Romain Guy2010-06-271-0/+156
This change also refactors the code base a bit by moving classes out of OpenGLRenderer into separate headers/implementations. This makes the code more manageable. This change also adds documentation for implementation methods. The undocumented methods are simply Skia's Canvas methods. Change-Id: I54c68b443580a0129251dddc1a7ac95813d5289e
generated by cgit v1.1 at 2025-11-27 21:37:22 +0000