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authorDave Parks <davep@lindenlab.com>2011-09-13 16:11:22 -0500
committerDave Parks <davep@lindenlab.com>2011-09-13 16:11:22 -0500
commitc0ca2c62fd6b9a90542907ce46bf1fe0ab379e13 (patch)
tree69bed5c3a72357e183384917b5495c2990e1ac13 /indra/newview/llcylinder.cpp
parent19371a9abed3198f9f6083c3b2483e65778e944a (diff)
parent38c19f4e55c0f6a104de87dfb57313a6c529b4d6 (diff)
merge
Diffstat (limited to 'indra/newview/llcylinder.cpp')
-rw-r--r--indra/newview/llcylinder.cpp260
1 files changed, 19 insertions, 241 deletions
diff --git a/indra/newview/llcylinder.cpp b/indra/newview/llcylinder.cpp
index 4901e29691..2adc071d7a 100644
--- a/indra/newview/llcylinder.cpp
+++ b/indra/newview/llcylinder.cpp
@@ -37,261 +37,39 @@
#include "llgl.h"
#include "llglheaders.h"
-LLCylinder gCylinder;
LLCone gCone;
-GLUquadricObj* gQuadObj = NULL;
-
-static const GLint SLICES[] = { 30, 20, 12, 6 }; // same as sphere slices
-static const GLint STACKS = 2;
-static const GLfloat RADIUS = 0.5f;
-
-// draws a cylinder or cone
-// returns approximate number of triangles required
-U32 draw_cylinder_side(GLint slices, GLint stacks, GLfloat base_radius, GLfloat top_radius)
-{
- U32 triangles = 0;
- GLfloat height = 1.0f;
-
- if (!gQuadObj)
- {
- gQuadObj = gluNewQuadric();
- if (!gQuadObj) llerror("draw_cylindrical_body couldn't allocated quadric", 0);
- }
-
- gluQuadricDrawStyle(gQuadObj, GLU_FILL);
- gluQuadricNormals(gQuadObj, GLU_SMOOTH);
- gluQuadricOrientation(gQuadObj, GLU_OUTSIDE);
- gluQuadricTexture(gQuadObj, GL_TRUE);
- gluCylinder(gQuadObj, base_radius, top_radius, height, slices, stacks);
- triangles += stacks * (slices * 2);
-
-
- return triangles;
-}
-
-
-// Returns number of triangles required to draw
-// Need to know if top or not to set lighting normals
-const BOOL TOP = TRUE;
-const BOOL BOTTOM = FALSE;
-U32 draw_cylinder_cap(GLint slices, GLfloat base_radius, BOOL is_top)
-{
- U32 triangles = 0;
-
- if (!gQuadObj)
- {
- gQuadObj = gluNewQuadric();
- if (!gQuadObj) llerror("draw_cylinder_base couldn't allocated quadric", 0);
- }
-
- gluQuadricDrawStyle(gQuadObj, GLU_FILL);
- gluQuadricNormals(gQuadObj, GLU_SMOOTH);
- gluQuadricOrientation(gQuadObj, GLU_OUTSIDE);
- gluQuadricTexture(gQuadObj, GL_TRUE);
-
- // no hole in the middle of the disk, and just one ring
- GLdouble inner_radius = 0.0;
- GLint rings = 1;
-
- // normals point in +z for top, -z for base
- if (is_top)
- {
- gluQuadricOrientation(gQuadObj, GLU_OUTSIDE);
- }
- else
- {
- gluQuadricOrientation(gQuadObj, GLU_INSIDE);
- }
- gluDisk(gQuadObj, inner_radius, base_radius, slices, rings);
- triangles += slices;
-
- return triangles;
-}
-
-void LLCylinder::drawSide(S32 detail)
-{
- draw_cylinder_side(SLICES[detail], STACKS, RADIUS, RADIUS);
-}
-
-void LLCylinder::drawTop(S32 detail)
-{
- draw_cylinder_cap(SLICES[detail], RADIUS, TOP);
-}
-
-void LLCylinder::drawBottom(S32 detail)
-{
- draw_cylinder_cap(SLICES[detail], RADIUS, BOTTOM);
-}
-
-void LLCylinder::prerender()
-{
-}
-
-void LLCylinder::cleanupGL()
-{
- if (gQuadObj)
- {
- gluDeleteQuadric(gQuadObj);
- gQuadObj = NULL;
- }
-}
-
-void LLCylinder::render(F32 pixel_area)
-{
- renderface(pixel_area, 0);
- renderface(pixel_area, 1);
- renderface(pixel_area, 2);
-}
-
-
-void LLCylinder::renderface(F32 pixel_area, S32 face)
-{
- if (face < 0 || face > 2)
- {
- llerror("LLCylinder::renderface() invalid face number", face);
- return;
- }
-
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
-
- S32 level_of_detail;
-
- if (pixel_area > 20000.f)
- {
- level_of_detail = 0;
- }
- else if (pixel_area > 1600.f)
- {
- level_of_detail = 1;
- }
- else if (pixel_area > 200.f)
- {
- level_of_detail = 2;
- }
- else
- {
- level_of_detail = 3;
- }
-
- if (level_of_detail < 0 || CYLINDER_LEVELS_OF_DETAIL <= level_of_detail)
- {
- llerror("LLCylinder::renderface() invalid level of detail", level_of_detail);
- return;
- }
-
- LLVertexBuffer::unbind();
-
- switch(face)
- {
- case 0:
- glTranslatef(0.f, 0.f, -0.5f);
- drawSide(level_of_detail);
- break;
- case 1:
- glTranslatef(0.0f, 0.f, 0.5f);
- drawTop(level_of_detail);
- break;
- case 2:
- glTranslatef(0.0f, 0.f, -0.5f);
- drawBottom(level_of_detail);
- break;
- default:
- llerror("LLCylinder::renderface() fell out of switch", 0);
- break;
- }
-
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
-}
-
-
//
// Cones
//
-void LLCone::prerender()
+void LLCone::render(S32 sides)
{
-}
+ gGL.begin(LLRender::TRIANGLE_FAN);
+ gGL.vertex3f(0,0,0);
-void LLCone::cleanupGL()
-{
- if (gQuadObj)
+ for (U32 i = 0; i < sides; i++)
{
- gluDeleteQuadric(gQuadObj);
- gQuadObj = NULL;
+ F32 a = (F32) i/sides * F_PI*2.f;
+ F32 x = cosf(a)*0.5f;
+ F32 y = sinf(a)*0.5f;
+ gGL.vertex3f(x,y,0.f);
}
-}
+ gGL.vertex3f(cosf(0.f)*0.5f, sinf(0.f)*0.5f, 0.f);
-void LLCone::drawSide(S32 detail)
-{
- draw_cylinder_side( SLICES[detail], STACKS, RADIUS, 0.f );
-}
-
-void LLCone::drawBottom(S32 detail)
-{
- draw_cylinder_cap( SLICES[detail], RADIUS, BOTTOM );
-}
-
-void LLCone::render(S32 level_of_detail)
-{
- GLfloat height = 1.0f;
+ gGL.end();
- if (level_of_detail < 0 || CONE_LEVELS_OF_DETAIL <= level_of_detail)
+ gGL.begin(LLRender::TRIANGLE_FAN);
+ gGL.vertex3f(0.f, 0.f, 1.f);
+ for (U32 i = 0; i < sides; i++)
{
- llerror("LLCone::render() invalid level of detail", level_of_detail);
- return;
+ F32 a = (F32) i/sides * F_PI*2.f;
+ F32 x = cosf(a)*0.5f;
+ F32 y = sinf(a)*0.5f;
+ gGL.vertex3f(x,y,0.f);
}
+ gGL.vertex3f(cosf(0.f)*0.5f, sinf(0.f)*0.5f, 0.f);
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
-
- // center object at 0
- glTranslatef(0.f, 0.f, - height / 2.0f);
-
- drawSide(level_of_detail);
- drawBottom(level_of_detail);
-
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
+ gGL.end();
}
-
-void LLCone::renderface(S32 level_of_detail, S32 face)
-{
- if (face < 0 || face > 1)
- {
- llerror("LLCone::renderface() invalid face number", face);
- return;
- }
-
- if (level_of_detail < 0 || CONE_LEVELS_OF_DETAIL <= level_of_detail)
- {
- llerror("LLCone::renderface() invalid level of detail", level_of_detail);
- return;
- }
-
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
-
- LLVertexBuffer::unbind();
-
- switch(face)
- {
- case 0:
- glTranslatef(0.f, 0.f, -0.5f);
- drawSide(level_of_detail);
- break;
- case 1:
- glTranslatef(0.f, 0.f, -0.5f);
- drawBottom(level_of_detail);
- break;
- default:
- llerror("LLCylinder::renderface() fell out of switch", 0);
- break;
- }
-
- glMatrixMode(GL_MODELVIEW);
- glPopMatrix();
-}