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swiftshader
Commit 52e18431 by Nicolas Capens
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Use a common implementation of the matrix stack for fixed-function OpenGL.

Change-Id: Ie51cddb3465f72375f20c704293d0850c95a735b Reviewed-on: https://swiftshader-review.googlesource.com/2600Reviewed-by: 's avatarNicolas Capens <capn@google.com> Tested-by: 's avatarNicolas Capens <capn@google.com>
parent 7462601f
Showing with 20 additions and 262 deletions
src/OpenGL/libGL/Context.h
......@@ -21,7 +21,7 @@
#include "Image.hpp"
#include "Renderer/Sampler.hpp"
#include "Renderer/Vertex.hpp"
#include "MatrixStack.hpp"
#include "common/MatrixStack.hpp"
#define _GDI32_
#include <windows.h>
......
src/OpenGL/libGL/libGL.vcxproj
......@@ -318,6 +318,7 @@ copy "$(OutDir)opengl32.dll" "$(ProjectDir)..\..\..\lib\$(Configuration)_$(Platf
</PostBuildEvent>
</ItemDefinitionGroup>
<ItemGroup>
<ClCompile Include="..\common\MatrixStack.cpp" />
<ClCompile Include="..\common\NameSpace.cpp" />
<ClCompile Include="..\common\Object.cpp" />
<ClCompile Include="Buffer.cpp" />
......@@ -331,7 +332,6 @@ copy "$(OutDir)opengl32.dll" "$(ProjectDir)..\..\..\lib\$(Configuration)_$(Platf
<ClCompile Include="IndexDataManager.cpp" />
<ClCompile Include="libGL.cpp" />
<ClCompile Include="main.cpp" />
<ClCompile Include="MatrixStack.cpp" />
<ClCompile Include="Program.cpp" />
<ClCompile Include="Query.cpp" />
<ClCompile Include="Renderbuffer.cpp" />
......@@ -344,6 +344,7 @@ copy "$(OutDir)opengl32.dll" "$(ProjectDir)..\..\..\lib\$(Configuration)_$(Platf
</ItemGroup>
<ItemGroup>
<ClInclude Include="..\common\debug.h" />
<ClInclude Include="..\common\MatrixStack.hpp" />
<ClInclude Include="..\common\NameSpace.hpp" />
<ClInclude Include="..\common\Object.hpp" />
<ClInclude Include="..\include\GL\glcorearb.h" />
......@@ -360,7 +361,6 @@ copy "$(OutDir)opengl32.dll" "$(ProjectDir)..\..\..\lib\$(Configuration)_$(Platf
<ClInclude Include="IndexDataManager.h" />
<ClInclude Include="main.h" />
<ClInclude Include="mathutil.h" />
<ClInclude Include="MatrixStack.hpp" />
<ClInclude Include="Program.h" />
<ClInclude Include="Query.h" />
<ClInclude Include="Renderbuffer.h" />
......
src/OpenGL/libGL/libGL.vcxproj.filters
......@@ -65,9 +65,6 @@
<ClCompile Include="Query.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="MatrixStack.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\common\NameSpace.cpp">
<Filter>Source Files</Filter>
</ClCompile>
......@@ -80,6 +77,9 @@
<ClCompile Include="..\common\Object.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\common\MatrixStack.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="Buffer.h">
......@@ -139,9 +139,6 @@
<ClInclude Include="..\common\debug.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="MatrixStack.hpp">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="Display.h">
<Filter>Header Files</Filter>
</ClInclude>
......@@ -166,6 +163,9 @@
<ClInclude Include="..\common\Object.hpp">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="..\common\MatrixStack.hpp">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="libGL.rc" />
......
src/OpenGL/libGLES_CM/Context.h
......@@ -21,7 +21,7 @@
#include "common/Object.hpp"
#include "Image.hpp"
#include "Renderer/Sampler.hpp"
#include "MatrixStack.hpp"
#include "common/MatrixStack.hpp"
#define GL_API
#include <GLES/gl.h>
......
src/OpenGL/libGLES_CM/MatrixStack.cpp deleted 100644 → 0
#include "MatrixStack.hpp"
#include "Common/Math.hpp"
namespace sw
{
MatrixStack::MatrixStack(int size)
{
stack = new Matrix[size];
stack[0] = 1;
top = 0;
this->size = size;
}
MatrixStack::~MatrixStack()
{
delete[] stack;
stack = 0;
}
void MatrixStack::identity()
{
stack[top] = 1;
}
void MatrixStack::load(const float *M)
{
stack[top] = Matrix(M[0], M[4], M[8], M[12],
M[1], M[5], M[9], M[13],
M[2], M[6], M[10], M[14],
M[3], M[7], M[11], M[15]);
}
void MatrixStack::load(const double *M)
{
stack[top] = Matrix((float)M[0], (float)M[4], (float)M[8], (float)M[12],
(float)M[1], (float)M[5], (float)M[9], (float)M[13],
(float)M[2], (float)M[6], (float)M[10], (float)M[14],
(float)M[3], (float)M[7], (float)M[11], (float)M[15]);
}
void MatrixStack::translate(float x, float y, float z)
{
stack[top] *= Matrix::translate(x, y, z);
}
void MatrixStack::translate(double x, double y, double z)
{
translate((float)x, (float)y, (float)z);
}
void MatrixStack::rotate(float angle, float x, float y, float z)
{
float n = 1.0f / sqrt(x*x + y*y + z*z);
x *= n;
y *= n;
z *= n;
float theta = angle * 0.0174532925f; // In radians
float c = cos(theta);
float _c = 1 - c;
float s = sin(theta);
// Rodrigues' rotation formula
sw::Matrix rotate(c+x*x*_c, x*y*_c-z*s, x*z*_c+y*s,
x*y*_c+z*s, c+y*y*_c, y*z*_c-x*s,
x*z*_c-y*s, y*z*_c+x*s, c+z*z*_c);
stack[top] *= rotate;
}
void MatrixStack::rotate(double angle, double x, double y, double z)
{
rotate((float)angle, (float)x, (float)y, (float)z);
}
void MatrixStack::scale(float x, float y, float z)
{
stack[top] *= Matrix::scale(x, y, z);
}
void MatrixStack::scale(double x, double y, double z)
{
scale((float)x, (float)y, (float)z);
}
void MatrixStack::multiply(const float *M)
{
stack[top] *= Matrix(M[0], M[4], M[8], M[12],
M[1], M[5], M[9], M[13],
M[2], M[6], M[10], M[14],
M[3], M[7], M[11], M[15]);
}
void MatrixStack::multiply(const double *M)
{
stack[top] *= Matrix((float)M[0], (float)M[4], (float)M[8], (float)M[12],
(float)M[1], (float)M[5], (float)M[9], (float)M[13],
(float)M[2], (float)M[6], (float)M[10], (float)M[14],
(float)M[3], (float)M[7], (float)M[11], (float)M[15]);
}
void MatrixStack::frustum(float left, float right, float bottom, float top, float zNear, float zFar)
{
float l = (float)left;
float r = (float)right;
float b = (float)bottom;
float t = (float)top;
float n = (float)zNear;
float f = (float)zFar;
float A = (r + l) / (r - l);
float B = (t + b) / (t - b);
float C = -(f + n) / (f - n);
float D = -2 * f * n / (f - n);
Matrix frustum(2 * n / (r - l), 0, A, 0,
0, 2 * n / (t - b), B, 0,
0, 0, C, D,
0, 0, -1, 0);
stack[this->top] *= frustum;
}
void MatrixStack::ortho(double left, double right, double bottom, double top, double zNear, double zFar)
{
float l = (float)left;
float r = (float)right;
float b = (float)bottom;
float t = (float)top;
float n = (float)zNear;
float f = (float)zFar;
float tx = -(r + l) / (r - l);
float ty = -(t + b) / (t - b);
float tz = -(f + n) / (f - n);
Matrix ortho(2 / (r - l), 0, 0, tx,
0, 2 / (t - b), 0, ty,
0, 0, -2 / (f - n), tz,
0, 0, 0, 1);
stack[this->top] *= ortho;
}
bool MatrixStack::push()
{
if(top >= size - 1) return false;
stack[top + 1] = stack[top];
top++;
return true;
}
bool MatrixStack::pop()
{
if(top <= 0) return false;
top--;
return true;
}
const Matrix &MatrixStack::current()
{
return stack[top];
}
bool MatrixStack::isIdentity() const
{
const Matrix &m = stack[top];
if(m.m[0][0] != 1.0f) return false;
if(m.m[0][1] != 0.0f) return false;
if(m.m[0][2] != 0.0f) return false;
if(m.m[0][3] != 0.0f) return false;
if(m.m[1][0] != 0.0f) return false;
if(m.m[1][1] != 1.0f) return false;
if(m.m[1][2] != 0.0f) return false;
if(m.m[1][3] != 0.0f) return false;
if(m.m[2][0] != 0.0f) return false;
if(m.m[2][1] != 0.0f) return false;
if(m.m[2][2] != 1.0f) return false;
if(m.m[2][3] != 0.0f) return false;
if(m.m[3][0] != 0.0f) return false;
if(m.m[3][1] != 0.0f) return false;
if(m.m[3][2] != 0.0f) return false;
if(m.m[3][3] != 1.0f) return false;
return true;
}
}
src/OpenGL/libGLES_CM/MatrixStack.hpp deleted 100644 → 0
#ifndef OpenGL32_MatrixStack_hpp
#define OpenGL32_MatrixStack_hpp
#include "Renderer/Matrix.hpp"
namespace sw
{
class MatrixStack
{
public:
MatrixStack(int size = 2);
~MatrixStack();
void identity();
void load(const float *M);
void load(const double *M);
void translate(float x, float y, float z);
void translate(double x, double y, double z);
void rotate(float angle, float x, float y, float z);
void rotate(double angle, double x, double y, double z);
void scale(float x, float y, float z);
void scale(double x, double y, double z);
void multiply(const float *M);
void multiply(const double *M);
void frustum(float left, float right, float bottom, float top, float zNear, float zFar);
void ortho(double left, double right, double bottom, double top, double zNear, double zFar);
bool push(); // False on overflow
bool pop(); // False on underflow
const Matrix &current();
bool isIdentity() const;
private:
int top;
int size;
Matrix *stack;
};
}
#endif // OpenGL32_MatrixStack_hpp
src/OpenGL/libGLES_CM/libGLES_CM.cbp
......@@ -272,8 +272,8 @@
<Unit filename="Image.hpp" />
<Unit filename="IndexDataManager.cpp" />
<Unit filename="IndexDataManager.h" />
<Unit filename="MatrixStack.cpp" />
<Unit filename="MatrixStack.hpp" />
<Unit filename="../common/MatrixStack.cpp" />
<Unit filename="../common/MatrixStack.hpp" />
<Unit filename="Renderbuffer.cpp" />
<Unit filename="Renderbuffer.h" />
<Unit filename="ResourceManager.cpp" />
......
src/OpenGL/libGLES_CM/libGLES_CM.vcxproj
......@@ -318,6 +318,7 @@ copy "$(OutDir)libGLES_CM.dll" "$(ProjectDir)..\..\..\lib\$(Configuration)_$(Pla
</PostBuildEvent>
</ItemDefinitionGroup>
<ItemGroup>
<ClCompile Include="..\common\MatrixStack.cpp" />
<ClCompile Include="..\common\NameSpace.cpp" />
<ClCompile Include="..\common\Object.cpp" />
<ClCompile Include="Buffer.cpp" />
......@@ -329,7 +330,6 @@ copy "$(OutDir)libGLES_CM.dll" "$(ProjectDir)..\..\..\lib\$(Configuration)_$(Pla
<ClCompile Include="IndexDataManager.cpp" />
<ClCompile Include="libGLES_CM.cpp" />
<ClCompile Include="main.cpp" />
<ClCompile Include="MatrixStack.cpp" />
<ClCompile Include="Renderbuffer.cpp" />
<ClCompile Include="ResourceManager.cpp" />
<ClCompile Include="Texture.cpp" />
......@@ -338,6 +338,7 @@ copy "$(OutDir)libGLES_CM.dll" "$(ProjectDir)..\..\..\lib\$(Configuration)_$(Pla
</ItemGroup>
<ItemGroup>
<ClInclude Include="..\common\debug.h" />
<ClInclude Include="..\common\MatrixStack.hpp" />
<ClInclude Include="..\common\NameSpace.hpp" />
<ClInclude Include="..\common\Object.hpp" />
<ClInclude Include="..\include\GLES\egl.h" />
......@@ -352,7 +353,6 @@ copy "$(OutDir)libGLES_CM.dll" "$(ProjectDir)..\..\..\lib\$(Configuration)_$(Pla
<ClInclude Include="IndexDataManager.h" />
<ClInclude Include="main.h" />
<ClInclude Include="mathutil.h" />
<ClInclude Include="MatrixStack.hpp" />
<ClInclude Include="Renderbuffer.h" />
<ClInclude Include="resource.h" />
<ClInclude Include="ResourceManager.h" />
......
src/OpenGL/libGLES_CM/libGLES_CM.vcxproj.filters
......@@ -53,15 +53,15 @@
<ClCompile Include="libGLES_CM.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="MatrixStack.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\common\Object.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\common\NameSpace.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\common\MatrixStack.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="Buffer.h">
......@@ -121,15 +121,15 @@
<ClInclude Include="..\include\GLES\glplatform.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="MatrixStack.hpp">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="..\common\Object.hpp">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="..\common\NameSpace.hpp">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="..\common\MatrixStack.hpp">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="libGLES_CM.rc" />
......
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