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-rw-r--r--canvas/source/opengl/ogl_spritedevicehelper.cxx262
1 files changed, 17 insertions, 245 deletions
diff --git a/canvas/source/opengl/ogl_spritedevicehelper.cxx b/canvas/source/opengl/ogl_spritedevicehelper.cxx
index 781beaf1f050..c7d3beaa136b 100644
--- a/canvas/source/opengl/ogl_spritedevicehelper.cxx
+++ b/canvas/source/opengl/ogl_spritedevicehelper.cxx
@@ -53,197 +53,6 @@ static int lcl_XErrorHandler( unx::Display*, unx::XErrorEvent* )
return 0;
}
-/** Dummy vertex processing. Simply uses default pipeline for vertex
- transformation, and forwards texture coodinates to fragment shader
- */
-static const char dummyVertexShader[] =
-{
- "varying vec2 v_textureCoords2d; "
- "void main(void) "
- "{ "
- " gl_Position = ftransform(); "
- " v_textureCoords2d = gl_MultiTexCoord0.st; "
- "} "
-};
-
-/** Two-color linear gradient
- */
-static const char linearTwoColorGradientFragmentShader[] =
-{
- "#version 120 \n"
- "uniform vec4 v_startColor4d; "
- "uniform vec4 v_endColor4d; "
- "uniform mat3x2 m_transform; "
- "varying vec2 v_textureCoords2d; "
- "void main(void) "
- "{ "
- " gl_FragColor = mix(v_startColor4d, "
- " v_endColor4d, "
- " clamp( "
- " (m_transform * vec3(v_textureCoords2d,1)).s, "
- " 0.0, 1.0)); "
- "} "
-};
-
-/** N-color linear gradient
- */
-static const char linearMultiColorGradientFragmentShader[] =
-{
- "#version 120 \n"
- "uniform int i_nColors; "
- "uniform sampler1D t_colorArray4d; "
- "uniform sampler1D t_stopArray1d; "
- "uniform mat3x2 m_transform; "
- "varying vec2 v_textureCoords2d; "
- " "
- "int findBucket(float t) "
- "{ "
- " int nMinBucket=0; "
- " while( nMinBucket < i_nColors && "
- " texture1D(t_stopArray1d, nMinBucket).s < t ) "
- " ++nMinBucket; "
- " return max(nMinBucket-1,0); "
- "} "
- " "
- "void main(void) "
- "{ "
- " const float fAlpha = "
- " clamp( (m_transform * vec3(v_textureCoords2d,1)).s, "
- " 0.0, 1.0 ); "
- " "
- " const int nMinBucket=findBucket( fAlpha ); "
- " "
- " const float fLerp = "
- " (fAlpha-texture1D(t_stopArray1d, nMinBucket).s) / "
- " (texture1D(t_stopArray1d, nMinBucket+1).s - "
- " texture1D(t_stopArray1d, nMinBucket).s); "
- " "
- " gl_FragColor = mix(texture1D(t_colorArray4d, nMinBucket), "
- " texture1D(t_colorArray4d, nMinBucket+1), "
- " fLerp); "
- "} "
-};
-
-/** Two-color radial gradient
- */
-static const char radialTwoColorGradientFragmentShader[] =
-{
- "#version 120 \n"
- "uniform vec4 v_startColor4d; "
- "uniform vec4 v_endColor4d; "
- "uniform mat3x2 m_transform; "
- "varying vec2 v_textureCoords2d; "
- "const vec2 v_center2d = vec2(0,0); "
- "void main(void) "
- "{ "
- " gl_FragColor = mix(v_startColor4d, "
- " v_endColor4d, "
- " 1.0 - distance( "
- " vec2( "
- " m_transform * vec3(v_textureCoords2d,1)), "
- " v_center2d)); "
- "} "
-};
-
-/** Multi-color radial gradient
- */
-static const char radialMultiColorGradientFragmentShader[] =
-{
- "#version 120 \n"
- "uniform int i_nColors; "
- "uniform sampler1D t_colorArray4d; "
- "uniform sampler1D t_stopArray1d; "
- "uniform mat3x2 m_transform; "
- "varying vec2 v_textureCoords2d; "
- "const vec2 v_center2d = vec2(0,0); "
- " "
- "int findBucket(float t) "
- "{ "
- " int nMinBucket=0; "
- " while( nMinBucket < i_nColors && "
- " texture1D(t_stopArray1d, nMinBucket).s < t ) "
- " ++nMinBucket; "
- " return max(nMinBucket-1,0); "
- "} "
- " "
- "void main(void) "
- "{ "
- " const float fAlpha = "
- " clamp( 1.0 - distance( "
- " vec2( m_transform * vec3(v_textureCoords2d,1)), "
- " v_center2d), "
- " 0.0, 1.0 ); "
- " "
- " const int nMinBucket=findBucket( fAlpha ); "
- " "
- " const float fLerp = "
- " (fAlpha-texture1D(t_stopArray1d, nMinBucket).s) / "
- " (texture1D(t_stopArray1d, nMinBucket+1).s - "
- " texture1D(t_stopArray1d, nMinBucket).s); "
- " "
- " gl_FragColor = mix(texture1D(t_colorArray4d, nMinBucket), "
- " texture1D(t_colorArray4d, nMinBucket+1), "
- " fLerp); "
- "} "
-};
-
-/** Two-color rectangular gradient
- */
-static const char rectangularTwoColorGradientFragmentShader[] =
-{
- "#version 120 \n"
- "uniform vec4 v_startColor4d; "
- "uniform vec4 v_endColor4d; "
- "uniform mat3x2 m_transform; "
- "varying vec2 v_textureCoords2d; "
- "void main(void) "
- "{ "
- " const vec2 v = abs( vec2(m_transform * vec3(v_textureCoords2d,1)) ); "
- " const float t = max(v.x, v.y); "
- " gl_FragColor = mix(v_startColor4d, "
- " v_endColor4d, "
- " 1.0-t); "
- "} "
-};
-
-/** Multi-color rectangular gradient
- */
-static const char rectangularMultiColorGradientFragmentShader[] =
-{
- "#version 120 \n"
- "uniform int i_nColors; "
- "uniform sampler1D t_colorArray4d; "
- "uniform sampler1D t_stopArray1d; "
- "uniform mat3x2 m_transform; "
- "varying vec2 v_textureCoords2d; "
- " "
- "int findBucket(float t) "
- "{ "
- " int nMinBucket=0; "
- " while( nMinBucket < i_nColors && "
- " texture1D(t_stopArray1d, nMinBucket).s < t ) "
- " ++nMinBucket; "
- " return max(nMinBucket-1,0); "
- "} "
- " "
- "void main(void) "
- "{ "
- " const vec2 v = abs( vec2(m_transform * vec3(v_textureCoords2d,1)) ); "
- " const float fAlpha = 1 - max(v.x, v.y); "
- " "
- " const int nMinBucket=findBucket( fAlpha ); "
- " "
- " const float fLerp = "
- " (fAlpha-texture1D(t_stopArray1d, nMinBucket).s) / "
- " (texture1D(t_stopArray1d, nMinBucket+1).s - "
- " texture1D(t_stopArray1d, nMinBucket).s); "
- " "
- " gl_FragColor = mix(texture1D(t_colorArray4d, nMinBucket), "
- " texture1D(t_colorArray4d, nMinBucket+1), "
- " fLerp); "
- "} "
-};
-
static void initContext()
{
// need the backside for mirror effects
@@ -529,13 +338,6 @@ namespace oglcanvas
mpGLPBufContext(NULL),
mpFBConfig(NULL),
mpTextureCache(new TextureCache()),
- mnDummyVertexProgram(0),
- mnLinearTwoColorGradientFragmentProgram(0),
- mnLinearMultiColorGradientFragmentProgram(0),
- mnRadialTwoColorGradientFragmentProgram(0),
- mnRadialMultiColorGradientFragmentProgram(0),
- mnRectangularTwoColorGradientFragmentProgram(0),
- mnRectangularMultiColorGradientFragmentProgram(0),
mnLinearTwoColorGradientProgram(0),
mnLinearMultiColorGradientProgram(0),
mnRadialTwoColorGradientProgram(0),
@@ -648,46 +450,23 @@ namespace oglcanvas
// init window context
initContext();
- // compile & link shaders - code courtesy rodo
- compileShader(mnDummyVertexProgram,
- GL_VERTEX_SHADER,
- dummyVertexShader);
- compileShader(mnLinearTwoColorGradientFragmentProgram,
- GL_FRAGMENT_SHADER,
- linearTwoColorGradientFragmentShader);
- compileShader(mnLinearMultiColorGradientFragmentProgram,
- GL_FRAGMENT_SHADER,
- linearMultiColorGradientFragmentShader);
- compileShader(mnRadialTwoColorGradientFragmentProgram,
- GL_FRAGMENT_SHADER,
- radialTwoColorGradientFragmentShader);
- compileShader(mnRadialMultiColorGradientFragmentProgram,
- GL_FRAGMENT_SHADER,
- radialMultiColorGradientFragmentShader);
- compileShader(mnRectangularTwoColorGradientFragmentProgram,
- GL_FRAGMENT_SHADER,
- rectangularTwoColorGradientFragmentShader);
- compileShader(mnRectangularMultiColorGradientFragmentProgram,
- GL_FRAGMENT_SHADER,
- rectangularMultiColorGradientFragmentShader);
- linkShaders(mnLinearTwoColorGradientProgram,
- mnDummyVertexProgram,
- mnLinearTwoColorGradientFragmentProgram);
- linkShaders(mnLinearMultiColorGradientProgram,
- mnDummyVertexProgram,
- mnLinearMultiColorGradientFragmentProgram);
- linkShaders(mnRadialTwoColorGradientProgram,
- mnDummyVertexProgram,
- mnRadialTwoColorGradientFragmentProgram);
- linkShaders(mnRadialMultiColorGradientProgram,
- mnDummyVertexProgram,
- mnRadialMultiColorGradientFragmentProgram);
- linkShaders(mnRectangularTwoColorGradientProgram,
- mnDummyVertexProgram,
- mnRectangularTwoColorGradientFragmentProgram);
- linkShaders(mnRectangularMultiColorGradientProgram,
- mnDummyVertexProgram,
- mnRectangularMultiColorGradientFragmentProgram);
+ mnLinearMultiColorGradientProgram =
+ OpenGLHelper::LoadShaders("dummyVertexShader.glsl", "linearMultiColorGradientFragmentShader.glsl");
+
+ mnLinearTwoColorGradientProgram =
+ OpenGLHelper::LoadShaders("dummyVertexShader.glsl", "linearTwoColorGradientFragmentShader.glsl");
+
+ mnRadialMultiColorGradientProgram =
+ OpenGLHelper::LoadShaders("dummyVertexShader.glsl", "radialMultiColorGradientFragmentShader.glsl");
+
+ mnRadialTwoColorGradientProgram =
+ OpenGLHelper::LoadShaders("dummyVertexShader.glsl", "radialTwoColorGradientFragmentShader.glsl");
+
+ mnRectangularMultiColorGradientProgram =
+ OpenGLHelper::LoadShaders("dummyVertexShader.glsl", "rectangularMultiColorGradientFragmentShader.glsl");
+
+ mnRectangularTwoColorGradientProgram =
+ OpenGLHelper::LoadShaders("dummyVertexShader.glsl", "rectangularTwoColorGradientFragmentShader.glsl");
glXMakeCurrent(pDisplay, None, NULL);
}
@@ -716,13 +495,6 @@ namespace oglcanvas
glDeleteProgram( mnRadialMultiColorGradientProgram );
glDeleteProgram( mnLinearTwoColorGradientProgram );
glDeleteProgram( mnLinearMultiColorGradientProgram );
- glDeleteShader( mnRectangularTwoColorGradientFragmentProgram );
- glDeleteShader( mnRectangularMultiColorGradientFragmentProgram );
- glDeleteShader( mnRadialTwoColorGradientFragmentProgram );
- glDeleteShader( mnRadialMultiColorGradientFragmentProgram );
- glDeleteShader( mnLinearTwoColorGradientFragmentProgram );
- glDeleteShader( mnLinearMultiColorGradientFragmentProgram );
- glDeleteShader( mnDummyVertexProgram );
glXDestroyContext(reinterpret_cast<unx::Display*>(mpDisplay),
reinterpret_cast<unx::GLXContext>(mpGLContext));
generated by cgit (git 2.34.1) at 2024-06-21 17:59:48 +0000