diff options
| author | Samuel Rødal <sroedal@trolltech.com> | 2009-06-05 11:47:32 +0200 |
|---|---|---|
| committer | Samuel Rødal <sroedal@trolltech.com> | 2009-06-09 12:48:11 +0200 |
| commit | d6f171c9baa61858aea0db36fd8b1bd3219ffd0b (patch) | |
| tree | bc2aa254f61623f0d7478ca12f1b1f8b714c8de8 /src/opengl/gl2paintengineex/qglengineshadersource_p.h | |
| parent | 2de2018a33ea45b32963378bb4f7ef24cd181485 (diff) | |
Improved clipping in GL2 paint engine.
Use the stencil method to draw clip paths and regions to the Z-buffer
instead of using glClear / glScissor. Using different depth values for
the various clip parts also makes restore() very cheap when only
IntersectClip is used.
As an additional bonus this patch gives antialiased clip in the GL 2
paint engine.
Task-number: 254658
Reviewed-by: Trond
Diffstat (limited to 'src/opengl/gl2paintengineex/qglengineshadersource_p.h')
| -rw-r--r-- | src/opengl/gl2paintengineex/qglengineshadersource_p.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/opengl/gl2paintengineex/qglengineshadersource_p.h b/src/opengl/gl2paintengineex/qglengineshadersource_p.h index 920d0bcc1a..70cc67efc4 100644 --- a/src/opengl/gl2paintengineex/qglengineshadersource_p.h +++ b/src/opengl/gl2paintengineex/qglengineshadersource_p.h @@ -84,16 +84,20 @@ static const char* const qglslMainWithTexCoordsVertexShader = "\ static const char* const qglslPositionOnlyVertexShader = "\ attribute highp vec4 vertexCoordsArray;\ uniform highp mat4 pmvMatrix;\ + uniform highp float depth;\ void setPosition(void)\ {\ gl_Position = pmvMatrix * vertexCoordsArray;\ + gl_Position.z = depth;\ }"; static const char* const qglslUntransformedPositionVertexShader = "\ attribute highp vec4 vertexCoordsArray;\ + uniform highp float depth;\ void setPosition(void)\ {\ gl_Position = vertexCoordsArray;\ + gl_Position.z = depth;\ }"; // Pattern Brush - This assumes the texture size is 8x8 and thus, the inverted size is 0.125 @@ -104,9 +108,11 @@ static const char* const qglslPositionWithPatternBrushVertexShader = "\ uniform mediump vec2 invertedTextureSize; \ uniform mediump mat3 brushTransform; \ varying mediump vec2 patternTexCoords; \ + uniform highp float depth;\ void setPosition(void) { \ gl_Position = pmvMatrix * vertexCoordsArray;\ gl_Position.xy = gl_Position.xy / gl_Position.w; \ + gl_Position.z = depth;\ mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \ mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \ mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \ @@ -136,9 +142,11 @@ static const char* const qglslPositionWithLinearGradientBrushVertexShader = "\ uniform highp vec3 linearData; \ uniform highp mat3 brushTransform; \ varying mediump float index ; \ + uniform highp float depth;\ void setPosition() { \ gl_Position = pmvMatrix * vertexCoordsArray;\ gl_Position.xy = gl_Position.xy / gl_Position.w; \ + gl_Position.z = depth;\ mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \ mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \ mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \ @@ -166,10 +174,12 @@ static const char* const qglslPositionWithConicalGradientBrushVertexShader = "\ uniform mediump vec2 halfViewportSize; \ uniform highp mat3 brushTransform; \ varying highp vec2 A; \ + uniform highp float depth;\ void setPosition(void)\ {\ gl_Position = pmvMatrix * vertexCoordsArray;\ gl_Position.xy = gl_Position.xy / gl_Position.w; \ + gl_Position.z = depth; \ mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \ mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \ mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \ @@ -205,10 +215,12 @@ static const char* const qglslPositionWithRadialGradientBrushVertexShader = "\ uniform highp vec2 fmp; \ varying highp float b; \ varying highp vec2 A; \ + uniform highp float depth;\ void setPosition(void) \ {\ gl_Position = pmvMatrix * vertexCoordsArray;\ gl_Position.xy = gl_Position.xy / gl_Position.w; \ + gl_Position.z = depth; \ mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \ mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \ mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \ @@ -242,9 +254,11 @@ static const char* const qglslPositionWithTextureBrushVertexShader = "\ uniform mediump vec2 invertedTextureSize; \ uniform mediump mat3 brushTransform; \ varying mediump vec2 brushTextureCoords; \ + uniform highp float depth;\ void setPosition(void) { \ gl_Position = pmvMatrix * vertexCoordsArray;\ gl_Position.xy = gl_Position.xy / gl_Position.w; \ + gl_Position.z = depth; \ mediump vec2 viewportCoords = (gl_Position.xy + 1.0) * halfViewportSize; \ mediump vec3 hTexCoords = brushTransform * vec3(viewportCoords, 1); \ mediump float invertedHTexCoordsZ = 1.0 / hTexCoords.z; \ |