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- 4 more places where immediate mode drawing has been substituted with a buffer-based alternative.

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This commit is contained in:
Christoph Oelckers 2014-05-20 22:20:15 +02:00
parent 6e6be8ed5b
commit 23fbd69963
2 changed files with 101 additions and 28 deletions
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57
src/gl/scene/gl_drawinfo.cpp
View file

@ -47,6 +47,7 @@
#include "gl/system/gl_cvars.h"
#include "gl/data/gl_data.h"
#include "gl/data/gl_vertexbuffer.h"
#include "gl/scene/gl_drawinfo.h"
#include "gl/scene/gl_portal.h"
#include "gl/dynlights/gl_lightbuffer.h"
@ -990,12 +991,30 @@ void FDrawInfo::SetupFloodStencil(wallseg * ws)
glDepthMask(true);
gl_RenderState.Apply();
if (!gl_usevbo)
{
glBegin(GL_TRIANGLE_FAN);
glVertex3f(ws->x1, ws->z1, ws->y1);
glVertex3f(ws->x1, ws->z2, ws->y1);
glVertex3f(ws->x2, ws->z2, ws->y2);
glVertex3f(ws->x2, ws->z1, ws->y2);
glEnd();
}
else
{
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(ws->x1, ws->z1, ws->y1, 0, 0);
ptr++;
ptr->Set(ws->x1, ws->z2, ws->y1, 0, 0);
ptr++;
ptr->Set(ws->x2, ws->z2, ws->y2, 0, 0);
ptr++;
ptr->Set(ws->x2, ws->z1, ws->y2, 0, 0);
ptr++;
unsigned int offset;
unsigned int count = GLRenderer->mVBO->GetCount(ptr, &offset);
glDrawArrays(GL_TRIANGLE_FAN, offset, count);
}
glStencilFunc(GL_EQUAL,recursion+1,~0); // draw sky into stencil
glStencilOp(GL_KEEP,GL_KEEP,GL_KEEP); // this stage doesn't modify the stencil
@ -1016,12 +1035,30 @@ void FDrawInfo::ClearFloodStencil(wallseg * ws)
gl_RenderState.ResetColor();
gl_RenderState.Apply();
if (!gl_usevbo)
{
glBegin(GL_TRIANGLE_FAN);
glVertex3f(ws->x1, ws->z1, ws->y1);
glVertex3f(ws->x1, ws->z2, ws->y1);
glVertex3f(ws->x2, ws->z2, ws->y2);
glVertex3f(ws->x2, ws->z1, ws->y2);
glEnd();
}
else
{
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(ws->x1, ws->z1, ws->y1, 0, 0);
ptr++;
ptr->Set(ws->x1, ws->z2, ws->y1, 0, 0);
ptr++;
ptr->Set(ws->x2, ws->z2, ws->y2, 0, 0);
ptr++;
ptr->Set(ws->x2, ws->z1, ws->y2, 0, 0);
ptr++;
unsigned int offset;
unsigned int count = GLRenderer->mVBO->GetCount(ptr, &offset);
glDrawArrays(GL_TRIANGLE_FAN, offset, count);
}
// restore old stencil op.
glStencilOp(GL_KEEP,GL_KEEP,GL_KEEP);
@ -1078,7 +1115,6 @@ void FDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, boo
bool pushed = gl_SetPlaneTextureRotation(&plane, gltexture);
glBegin(GL_TRIANGLE_FAN);
float prj_fac1 = (planez-fviewz)/(ws->z1-fviewz);
float prj_fac2 = (planez-fviewz)/(ws->z2-fviewz);
@ -1094,6 +1130,9 @@ void FDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, boo
float px4 = fviewx + prj_fac1 * (ws->x2-fviewx);
float py4 = fviewy + prj_fac1 * (ws->y2-fviewy);
if (!gl_usevbo)
{
glBegin(GL_TRIANGLE_FAN);
glTexCoord2f(px1 / 64, -py1 / 64);
glVertex3f(px1, planez, py1);
@ -1107,6 +1146,22 @@ void FDrawInfo::DrawFloodedPlane(wallseg * ws, float planez, sector_t * sec, boo
glVertex3f(px4, planez, py4);
glEnd();
}
else
{
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(px1, planez, py1, px1 / 64, -py1 / 64);
ptr++;
ptr->Set(px2, planez, py2, px2 / 64, -py2 / 64);
ptr++;
ptr->Set(px3, planez, py3, px3 / 64, -py3 / 64);
ptr++;
ptr->Set(px4, planez, py4, px4 / 64, -py4 / 64);
ptr++;
unsigned int offset;
unsigned int count = GLRenderer->mVBO->GetCount(ptr, &offset);
glDrawArrays(GL_TRIANGLE_FAN, offset, count);
}
if (pushed)
{

18
src/gl/scene/gl_scene.cpp
View file

@ -617,12 +617,30 @@ static void FillScreen()
gl_RenderState.EnableAlphaTest(false);
gl_RenderState.EnableTexture(false);
gl_RenderState.Apply();
if (!gl_usevbo)
{
glBegin(GL_TRIANGLE_STRIP);
glVertex2f(0.0f, 0.0f);
glVertex2f(0.0f, (float)SCREENHEIGHT);
glVertex2f((float)SCREENWIDTH, 0.0f);
glVertex2f((float)SCREENWIDTH, (float)SCREENHEIGHT);
glEnd();
}
else
{
FFlatVertex *ptr = GLRenderer->mVBO->GetBuffer();
ptr->Set(0, 0, 0, 0, 0);
ptr++;
ptr->Set(0, (float)SCREENHEIGHT, 0, 0, 0);
ptr++;
ptr->Set((float)SCREENWIDTH, 0, 0, 0, 0);
ptr++;
ptr->Set((float)SCREENWIDTH, (float)SCREENHEIGHT, 0, 0, 0);
ptr++;
unsigned int offset;
unsigned int count = GLRenderer->mVBO->GetCount(ptr, &offset);
glDrawArrays(GL_TRIANGLE_FAN, offset, count);
}
}
//==========================================================================