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Restore previously bound FBO in renderer functions

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This commit is contained in:
Simon Robertshaw 2012-06-25 21:53:31 +01:00
parent 1f9cce0007
commit 7f33db1f0c
1 changed files with 17 additions and 7 deletions
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24
src/Renderer.cpp
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@ -34,17 +34,20 @@ extern "C"
void Renderer::clearScreen(float alpha)
{
#ifdef OGLR
GLint prevFbo;
if(alpha > 0.999f)
{
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prevFbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, partsFbo);
glClear(GL_COLOR_BUFFER_BIT);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, prevFbo);
}
else
{
glBlendEquation(GL_FUNC_REVERSE_SUBTRACT);
glColor4f(1.0f, 1.0f, 1.0f, alpha);
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prevFbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, partsFbo);
glBegin(GL_QUADS);
glVertex2f(0, 0);
@ -52,7 +55,7 @@ void Renderer::clearScreen(float alpha)
glVertex2f(XRES, YRES);
glVertex2f(0, YRES);
glEnd();
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, prevFbo);
glBlendEquation(GL_FUNC_ADD);
}
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
@ -486,6 +489,8 @@ void Renderer::DrawSigns()
int i, j, x, y, w, h, dx, dy,mx,my,b=1,bq;
std::vector<sign> signs = sim->signs;
#ifdef OGLR
GLint prevFbo;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prevFbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, partsFbo);
glTranslated(0, MENUSIZE, 0);
#endif
@ -563,7 +568,7 @@ void Renderer::DrawSigns()
}
#ifdef OGLR
glTranslated(0, -MENUSIZE, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, prevFbo);
#endif
}
@ -746,10 +751,11 @@ void Renderer::render_parts()
int cflatV = 0, cflatC = 0, cflat = 0;
int caddV = 0, caddC = 0, cadd = 0;
int clineV = 0, clineC = 0, cline = 0;
GLint origBlendSrc, origBlendDst;
GLint origBlendSrc, origBlendDst, prevFbo;
glGetIntegerv(GL_BLEND_SRC, &origBlendSrc);
glGetIntegerv(GL_BLEND_DST, &origBlendDst);
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prevFbo);
//Render to the particle FBO
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, partsFbo);
glTranslated(0, MENUSIZE, 0);
@ -1659,7 +1665,7 @@ void Renderer::render_parts()
//Reset FBO
glTranslated(0, -MENUSIZE, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, prevFbo);
glBlendFunc(origBlendSrc, origBlendDst);
#endif
@ -1676,6 +1682,8 @@ void Renderer::draw_other() // EMP effect
if (emp_decor>0)
{
#ifdef OGLR
GLint prevFbo;
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prevFbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, partsFbo);
glTranslated(0, MENUSIZE, 0);
float femp_decor = ((float)emp_decor)/255.0f;
@ -1693,7 +1701,7 @@ void Renderer::draw_other() // EMP effect
glVertex2f(0, YRES+MENUSIZE);
glEnd();
glTranslated(0, -MENUSIZE, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, prevFbo);
#else
int r=emp_decor*2.5, g=100+emp_decor*1.5, b=255;
int a=(1.0*emp_decor/110)*255;
@ -1810,6 +1818,7 @@ void Renderer::draw_air()
#else
int sdl_scale = 1;
GLuint airProg;
GLint prevFbo;
if(display_mode & DISPLAY_AIRC)
{
airProg = airProg_Cracker;
@ -1828,6 +1837,7 @@ void Renderer::draw_air()
}
glEnable( GL_TEXTURE_2D );
glGetIntegerv(GL_FRAMEBUFFER_BINDING, &prevFbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, partsFbo);
glTranslated(0, MENUSIZE, 0);
@ -1862,7 +1872,7 @@ void Renderer::draw_air()
glUseProgram(0);
glBindTexture(GL_TEXTURE_2D, 0);
glTranslated(0, -MENUSIZE, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, prevFbo);
glDisable( GL_TEXTURE_2D );
#endif
}