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Added RenderStates

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Former-commit-id: c742cf2fc1cac807b9e2bcbd88c2b3d77327c106
This commit is contained in:
Lynix
2013-06-17 23:58:45 +02:00
parent 84cb7cb731
commit 7a45ff4884
8 changed files with 284 additions and 192 deletions
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122
src/Nazara/Renderer/OpenGL.cpp
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@@ -4,6 +4,7 @@
#include <Nazara/Renderer/OpenGL.hpp>
#include <Nazara/Core/Error.hpp>
#include <Nazara/Math/Basic.hpp>
#include <Nazara/Renderer/Context.hpp>
#include <cstring>
#include <set>
@@ -62,6 +63,7 @@ namespace
GLuint s_buffersBinding[nzBufferType_Max+1];
GLuint s_currentProgram;
GLuint s_texturesBinding[32]; // 32 est pour l'instant la plus haute limite (GL_TEXTURE31)
NzRenderStates s_states; // Toujours synchronisé avec OpenGL
const char* s_rendererName = nullptr;
const char* s_vendorName = nullptr;
bool s_initialized = false;
@@ -114,6 +116,126 @@ namespace
}
}
void NzOpenGL::ApplyStates(const NzRenderStates& states)
{
if (states.dstBlend != states.dstBlend || s_states.srcBlend != states.srcBlend)
{
glBlendFunc(BlendFunc[states.srcBlend], BlendFunc[states.dstBlend]);
s_states.dstBlend = states.dstBlend;
}
if (s_states.depthFunc != states.depthFunc)
{
glDepthFunc(RendererComparison[states.depthFunc]);
s_states.depthFunc = states.depthFunc;
}
if (s_states.faceCulling != states.faceCulling)
{
glCullFace(FaceCulling[states.faceCulling]);
s_states.faceCulling = states.faceCulling;
}
if (s_states.faceFilling != states.faceFilling)
{
glPolygonMode(GL_FRONT_AND_BACK, FaceFilling[states.faceFilling]);
s_states.faceFilling = states.faceFilling;
}
if (s_states.stencilCompare != states.stencilCompare || s_states.stencilMask != states.stencilMask || s_states.stencilReference != states.stencilReference)
{
glStencilFunc(RendererComparison[states.stencilCompare], states.stencilReference, states.stencilMask);
s_states.stencilCompare = states.stencilCompare;
s_states.stencilMask = states.stencilMask;
s_states.stencilReference = states.stencilReference;
}
if (s_states.stencilFail != states.stencilFail || s_states.stencilPass != states.stencilPass || s_states.stencilZFail != states.stencilZFail)
{
glStencilOp(StencilOperation[states.stencilFail], StencilOperation[states.stencilZFail], StencilOperation[states.stencilPass]);
s_states.stencilFail = states.stencilFail;
s_states.stencilPass = states.stencilPass;
s_states.stencilZFail = states.stencilZFail;
}
if (NzNumberEquals(s_states.lineWidth, states.lineWidth, 0.001f))
{
glLineWidth(states.lineWidth);
s_states.lineWidth = states.lineWidth;
}
if (NzNumberEquals(s_states.pointSize, states.pointSize, 0.001f))
{
glPointSize(states.pointSize);
s_states.pointSize = states.pointSize;
}
// Paramètres de rendu
if (s_states.parameters[nzRendererParameter_Blend] != states.parameters[nzRendererParameter_Blend])
{
if (states.parameters[nzRendererParameter_Blend])
glEnable(GL_BLEND);
else
glDisable(GL_BLEND);
s_states.parameters[nzRendererParameter_Blend] = states.parameters[nzRendererParameter_Blend];
}
if (s_states.parameters[nzRendererParameter_ColorWrite] != states.parameters[nzRendererParameter_ColorWrite])
{
GLboolean param = (states.parameters[nzRendererParameter_ColorWrite]) ? GL_TRUE : GL_FALSE;
glColorMask(param, param, param, param);
s_states.parameters[nzRendererParameter_ColorWrite] = states.parameters[nzRendererParameter_ColorWrite];
}
if (s_states.parameters[nzRendererParameter_DepthBuffer] != states.parameters[nzRendererParameter_DepthBuffer])
{
if (states.parameters[nzRendererParameter_DepthBuffer])
glEnable(GL_DEPTH_TEST);
else
glDisable(GL_DEPTH_TEST);
s_states.parameters[nzRendererParameter_DepthBuffer] = states.parameters[nzRendererParameter_DepthBuffer];
}
if (s_states.parameters[nzRendererParameter_DepthWrite] != states.parameters[nzRendererParameter_DepthWrite])
{
glDepthMask((states.parameters[nzRendererParameter_DepthWrite]) ? GL_TRUE : GL_FALSE);
s_states.parameters[nzRendererParameter_DepthWrite] = states.parameters[nzRendererParameter_DepthWrite];
}
if (s_states.parameters[nzRendererParameter_FaceCulling] != states.parameters[nzRendererParameter_FaceCulling])
{
if (states.parameters[nzRendererParameter_FaceCulling])
glEnable(GL_CULL_FACE);
else
glDisable(GL_CULL_FACE);
s_states.parameters[nzRendererParameter_FaceCulling] = states.parameters[nzRendererParameter_FaceCulling];
}
if (s_states.parameters[nzRendererParameter_ScissorTest] != states.parameters[nzRendererParameter_ScissorTest])
{
if (states.parameters[nzRendererParameter_ScissorTest])
glEnable(GL_SCISSOR_TEST);
else
glDisable(GL_SCISSOR_TEST);
s_states.parameters[nzRendererParameter_ScissorTest] = states.parameters[nzRendererParameter_ScissorTest];
}
if (s_states.parameters[nzRendererParameter_StencilTest] != states.parameters[nzRendererParameter_StencilTest])
{
if (states.parameters[nzRendererParameter_StencilTest])
glEnable(GL_STENCIL_TEST);
else
glDisable(GL_STENCIL_TEST);
s_states.parameters[nzRendererParameter_StencilTest] = states.parameters[nzRendererParameter_StencilTest];
}
}
void NzOpenGL::BindBuffer(nzBufferType type, GLuint id)
{
if (s_buffersBinding[type] != id)