cvar_t gl_mesh_drawrangeelements = {0, "gl_mesh_drawrangeelements", "1", "use glDrawRangeElements function if available instead of glDrawElements (for performance comparisons or bug testing)"};
cvar_t gl_mesh_testarrayelement = {0, "gl_mesh_testarrayelement", "0", "use glBegin(GL_TRIANGLES);glArrayElement();glEnd(); primitives instead of glDrawElements (useful to test for driver bugs with glDrawElements)"};
cvar_t gl_mesh_testmanualfeeding = {0, "gl_mesh_testmanualfeeding", "0", "use glBegin(GL_TRIANGLES);glTexCoord2f();glVertex3f();glEnd(); primitives instead of glDrawElements (useful to test for driver bugs with glDrawElements)"};
+cvar_t gl_mesh_prefer_short_elements = {0, "gl_mesh_prefer_short_elements", "1", "use GL_UNSIGNED_SHORT element arrays instead of GL_UNSIGNED_INT"};
cvar_t gl_paranoid = {0, "gl_paranoid", "0", "enables OpenGL error checking and other tests"};
cvar_t gl_printcheckerror = {0, "gl_printcheckerror", "0", "prints all OpenGL error checks, useful to identify location of driver crashes"};
cvar_t gl_dither = {CVAR_SAVE, "gl_dither", "1", "enables OpenGL dithering (16bit looks bad with this off)"};
cvar_t gl_lockarrays = {0, "gl_lockarrays", "0", "enables use of glLockArraysEXT, may cause glitches with some broken drivers, and may be slower than normal"};
cvar_t gl_lockarrays_minimumvertices = {0, "gl_lockarrays_minimumvertices", "1", "minimum number of vertices required for use of glLockArraysEXT, setting this too low may reduce performance"};
+cvar_t gl_vbo = {CVAR_SAVE, "gl_vbo", "3", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering, 0 disables VBO allocation or use, 1 enables VBOs for vertex and triangle data, 2 only for vertex data, 3 for vertex data and triangle data of simple meshes (ones with only one surface)"};
+cvar_t gl_fbo = {CVAR_SAVE, "gl_fbo", "1", "make use of GL_ARB_framebuffer_object extension to enable shadowmaps and other features using pixel formats different from the framebuffer"};
+
+cvar_t v_flipped = {0, "v_flipped", "0", "mirror the screen (poor man's left handed mode)"};
+qboolean v_flipped_state = false;
int gl_maxdrawrangeelementsvertices;
int gl_maxdrawrangeelementsindices;
}
*/
-int polygonelements[(POLYGONELEMENTS_MAXPOINTS-2)*3];
-int quadelements[QUADELEMENTS_MAXQUADS*6];
+unsigned short polygonelements[(POLYGONELEMENTS_MAXPOINTS-2)*3];
+unsigned short quadelements[QUADELEMENTS_MAXQUADS*6];
void GL_Backend_AllocArrays(void)
{
{
}
+void GL_VBOStats_f(void)
+{
+ GL_Mesh_ListVBOs(true);
+}
+
+typedef struct gl_bufferobjectinfo_s
+{
+ int target;
+ int object;
+ size_t size;
+ char name[MAX_QPATH];
+}
+gl_bufferobjectinfo_t;
+
+memexpandablearray_t gl_bufferobjectinfoarray;
+
static void gl_backend_start(void)
{
- Con_Print("OpenGL Backend starting...\n");
CHECKGLERROR
if (qglDrawRangeElements != NULL)
CHECKGLERROR
qglGetIntegerv(GL_MAX_ELEMENTS_INDICES, &gl_maxdrawrangeelementsindices);
CHECKGLERROR
- Con_Printf("glDrawRangeElements detected (max vertices %i, max indices %i)\n", gl_maxdrawrangeelementsvertices, gl_maxdrawrangeelementsindices);
+ Con_DPrintf("GL_MAX_ELEMENTS_VERTICES = %i\nGL_MAX_ELEMENTS_INDICES = %i\n", gl_maxdrawrangeelementsvertices, gl_maxdrawrangeelementsindices);
}
backendunits = bound(1, gl_textureunits, MAX_TEXTUREUNITS);
CHECKGLERROR
qglGetIntegerv(GL_MAX_TEXTURE_COORDS_ARB, (int *)&backendarrayunits);
CHECKGLERROR
- Con_Printf("GLSL shader support detected: texture units = %i texenv, %i image, %i array\n", backendunits, backendimageunits, backendarrayunits);
+ Con_DPrintf("GLSL shader support detected: texture units = %i texenv, %i image, %i array\n", backendunits, backendimageunits, backendarrayunits);
backendimageunits = bound(1, backendimageunits, MAX_TEXTUREUNITS);
backendarrayunits = bound(1, backendarrayunits, MAX_TEXTUREUNITS);
}
- else if (backendunits > 1)
- Con_Printf("multitexture detected: texture units = %i\n", backendunits);
else
- Con_Printf("singletexture\n");
+ Con_DPrintf("GL_MAX_TEXTUREUNITS = %i\n", backendunits);
GL_Backend_AllocArrays();
- Con_Printf("OpenGL backend started.\n");
+ Mem_ExpandableArray_NewArray(&gl_bufferobjectinfoarray, r_main_mempool, sizeof(gl_bufferobjectinfo_t), 128);
+
+ Con_DPrintf("OpenGL backend started.\n");
CHECKGLERROR
backendarrayunits = 0;
backendactive = false;
- Con_Print("OpenGL Backend shutting down\n");
+ Con_DPrint("OpenGL Backend shutting down\n");
+
+ Mem_ExpandableArray_FreeArray(&gl_bufferobjectinfoarray);
GL_Backend_FreeArrays();
}
Cvar_RegisterVariable(&r_render);
Cvar_RegisterVariable(&r_waterwarp);
Cvar_RegisterVariable(&gl_polyblend);
+ Cvar_RegisterVariable(&v_flipped);
Cvar_RegisterVariable(&gl_dither);
Cvar_RegisterVariable(&gl_lockarrays);
Cvar_RegisterVariable(&gl_lockarrays_minimumvertices);
+ Cvar_RegisterVariable(&gl_vbo);
Cvar_RegisterVariable(&gl_paranoid);
Cvar_RegisterVariable(&gl_printcheckerror);
#ifdef NORENDER
Cvar_RegisterVariable(&gl_mesh_drawrangeelements);
Cvar_RegisterVariable(&gl_mesh_testarrayelement);
Cvar_RegisterVariable(&gl_mesh_testmanualfeeding);
+ Cvar_RegisterVariable(&gl_mesh_prefer_short_elements);
+
+ Cmd_AddCommand("gl_vbostats", GL_VBOStats_f, "prints a list of all buffer objects (vertex data and triangle elements) and total video memory used by them");
R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
}
+void GL_SetMirrorState(qboolean state);
+
void GL_SetupView_Orientation_Identity (void)
{
backend_viewmatrix = identitymatrix;
+ GL_SetMirrorState(false);
memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));
}
void GL_SetupView_Orientation_FromEntity(const matrix4x4_t *matrix)
{
matrix4x4_t tempmatrix, basematrix;
- Matrix4x4_Invert_Simple(&tempmatrix, matrix);
+ Matrix4x4_Invert_Full(&tempmatrix, matrix);
Matrix4x4_CreateRotate(&basematrix, -90, 1, 0, 0);
Matrix4x4_ConcatRotate(&basematrix, 90, 0, 0, 1);
Matrix4x4_Concat(&backend_viewmatrix, &basematrix, &tempmatrix);
+
+ GL_SetMirrorState(v_flipped.integer);
+ if(v_flipped_state)
+ {
+ Matrix4x4_Transpose(&basematrix, &backend_viewmatrix);
+ Matrix4x4_ConcatScale3(&basematrix, -1, 1, 1);
+ Matrix4x4_Transpose(&backend_viewmatrix, &basematrix);
+ }
+
//Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[2], 1, 0, 0);
//Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[0], 0, 1, 0);
//Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[1], 0, 0, 1);
//Matrix4x4_ConcatTranslate(&backend_viewmatrix, -origin[0], -origin[1], -origin[2]);
+
+ // force an update of the model matrix by copying it off, resetting it, and then calling the R_Mesh_Matrix function with it
+ tempmatrix = backend_modelmatrix;
memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));
+ R_Mesh_Matrix(&tempmatrix);
+}
+
+static void GL_BuildFrustum(double m[16], double left, double right, double bottom, double top, double nearVal, double farVal)
+{
+ m[0] = 2 * nearVal / (right - left);
+ m[1] = 0;
+ m[2] = 0;
+ m[3] = 0;
+
+ m[4] = 0;
+ m[5] = 2 * nearVal / (top - bottom);
+ m[6] = 0;
+ m[7] = 0;
+
+ m[8] = (right + left) / (right - left);
+ m[9] = (top + bottom) / (top - bottom);
+ m[10] = - (farVal + nearVal) / (farVal - nearVal);
+ m[11] = -1;
+
+ m[12] = 0;
+ m[13] = 0;
+ m[14] = - 2 * farVal * nearVal / (farVal - nearVal);
+ m[15] = 0;
}
void GL_SetupView_Mode_Perspective (double frustumx, double frustumy, double zNear, double zFar)
// set up viewpoint
CHECKGLERROR
qglMatrixMode(GL_PROJECTION);CHECKGLERROR
- qglLoadIdentity();CHECKGLERROR
// set view pyramid
+#if 1
+ // avoid glGetDoublev whenever possible, it may stall the render pipeline
+ // in the tested cases (nvidia) no measurable fps difference, but it sure
+ // makes a difference over a network line with GLX
+ GL_BuildFrustum(m, -frustumx * zNear, frustumx * zNear, -frustumy * zNear, frustumy * zNear, zNear, zFar);
+ qglLoadMatrixd(m);CHECKGLERROR
+#else
+ qglLoadIdentity();CHECKGLERROR
qglFrustum(-frustumx * zNear, frustumx * zNear, -frustumy * zNear, frustumy * zNear, zNear, zFar);CHECKGLERROR
qglGetDoublev(GL_PROJECTION_MATRIX, m);CHECKGLERROR
+#endif
Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m);
qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
GL_SetupView_Orientation_Identity();
Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m);
}
+static void GL_BuildOrtho(double m[16], double left, double right, double bottom, double top, double zNear, double zFar)
+{
+ m[0] = 2/(right - left);
+ m[1] = 0;
+ m[2] = 0;
+ m[3] = 0;
+
+ m[4] = 0;
+ m[5] = 2/(top - bottom);
+ m[6] = 0;
+ m[7] = 0;
+
+ m[8] = 0;
+ m[9] = 0;
+ m[10] = -2/(zFar - zNear);
+ m[11] = 0;
+
+ m[12] = - (right + left)/(right - left);
+ m[13] = - (top + bottom)/(top - bottom);
+ m[14] = - (zFar + zNear)/(zFar - zNear);
+ m[15] = 1;
+}
+
void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar)
{
double m[16];
// set up viewpoint
CHECKGLERROR
qglMatrixMode(GL_PROJECTION);CHECKGLERROR
+#if 1
+ // avoid glGetDoublev whenever possible, it may stall the render pipeline
+ // in the tested cases (nvidia) no measurable fps difference, but it sure
+ // makes a difference over a network line with GLX
+ GL_BuildOrtho(m, x1, x2, y2, y1, zNear, zFar);
+ qglLoadMatrixd(m);CHECKGLERROR
+#else
qglLoadIdentity();CHECKGLERROR
qglOrtho(x1, x2, y2, y1, zNear, zFar);CHECKGLERROR
qglGetDoublev(GL_PROJECTION_MATRIX, m);CHECKGLERROR
+#endif
Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m);
qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
GL_SetupView_Orientation_Identity();
CHECKGLERROR
}
+void GL_SetupView_ApplyCustomNearClipPlane(double normalx, double normaly, double normalz, double dist)
+{
+ double matrix[16];
+ double q[4];
+ double d;
+ float clipPlane[4], v3[3], v4[3];
+ float normal[3];
+
+ // This is Olique Depth Projection from http://www.terathon.com/code/oblique.php
+ // modified to fit in this codebase.
+
+ VectorSet(normal, normalx, normaly, normalz);
+ Matrix4x4_Transform3x3(&backend_viewmatrix, normal, clipPlane);
+ VectorScale(normal, dist, v3);
+ Matrix4x4_Transform(&backend_viewmatrix, v3, v4);
+ // FIXME: LordHavoc: I think this can be done more efficiently somehow but I can't remember the technique
+ clipPlane[3] = -DotProduct(v4, clipPlane);
+
+#if 0
+{
+ // testing code for comparing results
+ float clipPlane2[4];
+ VectorCopy4(clipPlane, clipPlane2);
+ R_Mesh_Matrix(&identitymatrix);
+ VectorSet(q, normal[0], normal[1], normal[2], -dist);
+ qglClipPlane(GL_CLIP_PLANE0, q);
+ qglGetClipPlane(GL_CLIP_PLANE0, q);
+ VectorCopy4(q, clipPlane);
+}
+#endif
+
+ // Calculate the clip-space corner point opposite the clipping plane
+ // as (sgn(clipPlane.x), sgn(clipPlane.y), 1, 1) and
+ // transform it into camera space by multiplying it
+ // by the inverse of the projection matrix
+ Matrix4x4_ToArrayDoubleGL(&backend_projectmatrix, matrix);
+
+ q[0] = ((clipPlane[0] < 0.0f ? -1.0f : clipPlane[0] > 0.0f ? 1.0f : 0.0f) + matrix[8]) / matrix[0];
+ q[1] = ((clipPlane[1] < 0.0f ? -1.0f : clipPlane[1] > 0.0f ? 1.0f : 0.0f) + matrix[9]) / matrix[5];
+ q[2] = -1.0f;
+ q[3] = (1.0f + matrix[10]) / matrix[14];
+
+ // Calculate the scaled plane vector
+ d = 2.0f / DotProduct4(clipPlane, q);
+
+ // Replace the third row of the projection matrix
+ matrix[2] = clipPlane[0] * d;
+ matrix[6] = clipPlane[1] * d;
+ matrix[10] = clipPlane[2] * d + 1.0f;
+ matrix[14] = clipPlane[3] * d;
+
+ // Load it back into OpenGL
+ qglMatrixMode(GL_PROJECTION);CHECKGLERROR
+ qglLoadMatrixd(matrix);CHECKGLERROR
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ CHECKGLERROR
+ Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, matrix);
+}
+
typedef struct gltextureunit_s
{
const void *pointer_texcoord;
GLboolean depthmask;
int colormask; // stored as bottom 4 bits: r g b a (3 2 1 0 order)
int depthtest;
+ float depthrange[2];
+ float polygonoffset[2];
int alphatest;
int scissortest;
unsigned int unit;
gl_state.color4f[0] = gl_state.color4f[1] = gl_state.color4f[2] = gl_state.color4f[3] = 1;
gl_state.lockrange_first = 0;
gl_state.lockrange_count = 0;
- gl_state.cullface = GL_FRONT; // quake is backwards, this culls back faces
+ gl_state.cullface = v_flipped_state ? GL_BACK : GL_FRONT; // quake is backwards, this culls back faces
gl_state.cullfaceenable = true;
+ gl_state.polygonoffset[0] = 0;
+ gl_state.polygonoffset[1] = 0;
CHECKGLERROR
qglDepthFunc(GL_LEQUAL);CHECKGLERROR
qglEnable(GL_DEPTH_TEST);CHECKGLERROR
qglDepthMask(gl_state.depthmask);CHECKGLERROR
+ qglPolygonOffset(gl_state.polygonoffset[0], gl_state.polygonoffset[1]);
if (gl_support_arb_vertex_buffer_object)
{
qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
}
+ if (gl_support_ext_framebuffer_object)
+ {
+ qglBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+ qglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+ }
+
qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), NULL);CHECKGLERROR
qglEnableClientState(GL_VERTEX_ARRAY);CHECKGLERROR
}
}
+void GL_DepthRange(float nearfrac, float farfrac)
+{
+ if (gl_state.depthrange[0] != nearfrac || gl_state.depthrange[1] != farfrac)
+ {
+ gl_state.depthrange[0] = nearfrac;
+ gl_state.depthrange[1] = farfrac;
+ qglDepthRange(nearfrac, farfrac);
+ }
+}
+
+void GL_PolygonOffset(float planeoffset, float depthoffset)
+{
+ if (gl_state.polygonoffset[0] != planeoffset || gl_state.polygonoffset[1] != depthoffset)
+ {
+ gl_state.polygonoffset[0] = planeoffset;
+ gl_state.polygonoffset[1] = depthoffset;
+ qglPolygonOffset(planeoffset, depthoffset);
+ }
+}
+
+void GL_SetMirrorState(qboolean state)
+{
+ if(!state != !v_flipped_state)
+ {
+ // change cull face mode!
+ if(gl_state.cullface == GL_BACK)
+ qglCullFace((gl_state.cullface = GL_FRONT));
+ else if(gl_state.cullface == GL_FRONT)
+ qglCullFace((gl_state.cullface = GL_BACK));
+ }
+ v_flipped_state = state;
+}
+
void GL_CullFace(int state)
{
CHECKGLERROR
+
+ if(v_flipped_state)
+ {
+ if(state == GL_FRONT)
+ state = GL_BACK;
+ else if(state == GL_BACK)
+ state = GL_FRONT;
+ }
+
if (state != GL_NONE)
{
if (!gl_state.cullfaceenable)
Matrix4x4_Transform4 (&backend_viewmatrix, in, temp);
Matrix4x4_Transform4 (&backend_projectmatrix, temp, out);
iw = 1.0f / out[3];
- out[0] = r_view.x + (out[0] * iw + 1.0f) * r_view.width * 0.5f;
- out[1] = r_view.y + r_view.height - (out[1] * iw + 1.0f) * r_view.height * 0.5f;
- out[2] = r_view.z + (out[2] * iw + 1.0f) * r_view.depth * 0.5f;
+ out[0] = r_refdef.view.x + (out[0] * iw + 1.0f) * r_refdef.view.width * 0.5f;
+ out[1] = r_refdef.view.y + r_refdef.view.height - (out[1] * iw + 1.0f) * r_refdef.view.height * 0.5f;
+ out[2] = r_refdef.view.z + (out[2] * iw + 1.0f) * r_refdef.view.depth * 0.5f;
}
// called at beginning of frame
qglCompileShaderARB(shaderobject);CHECKGLERROR
qglGetObjectParameterivARB(shaderobject, GL_OBJECT_COMPILE_STATUS_ARB, &shadercompiled);CHECKGLERROR
qglGetInfoLogARB(shaderobject, sizeof(compilelog), NULL, compilelog);CHECKGLERROR
- if (compilelog[0])
- Con_DPrintf("%s shader compile log:\n%s\n", shadertype, compilelog);
+ if (compilelog[0] && developer.integer > 0)
+ {
+ int i, j, pretextlines = 0;
+ for (i = 0;i < numstrings - 1;i++)
+ for (j = 0;strings[i][j];j++)
+ if (strings[i][j] == '\n')
+ pretextlines++;
+ Con_DPrintf("%s shader compile log:\n%s\n(line offset for any above warnings/errors: %i)\n", shadertype, compilelog, pretextlines);
+ }
if (!shadercompiled)
{
qglDeleteObjectARB(shaderobject);CHECKGLERROR
// renders triangles using vertices from the active arrays
int paranoidblah = 0;
-void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int *elements, int bufferobject, size_t bufferoffset)
+void R_Mesh_Draw(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int bufferobject3i, int bufferobject3s)
{
unsigned int numelements = numtriangles * 3;
if (numvertices < 3 || numtriangles < 1)
{
- Con_Printf("R_Mesh_Draw(%d, %d, %d, %8p);\n", firstvertex, numvertices, numtriangles, elements);
+ if (numvertices < 0 || numtriangles < 0 || developer.integer >= 100)
+ Con_Printf("R_Mesh_Draw(%d, %d, %d, %d, %8p, %8p, %i, %i);\n", firstvertex, numvertices, firsttriangle, numtriangles, (void *)element3i, (void *)element3s, bufferobject3i, bufferobject3s);
return;
}
+ if (!gl_mesh_prefer_short_elements.integer)
+ {
+ if (element3i)
+ element3s = NULL;
+ if (bufferobject3i)
+ bufferobject3s = 0;
+ }
+ if (element3i)
+ element3i += firsttriangle * 3;
+ if (element3s)
+ element3s += firsttriangle * 3;
+ switch (gl_vbo.integer)
+ {
+ default:
+ case 0:
+ case 2:
+ bufferobject3i = bufferobject3s = 0;
+ break;
+ case 1:
+ break;
+ case 3:
+ if (firsttriangle)
+ bufferobject3i = bufferobject3s = 0;
+ break;
+ }
CHECKGLERROR
r_refdef.stats.meshes++;
r_refdef.stats.meshes_elements += numelements;
paranoidblah += *p;
}
}
- for (i = 0;i < (unsigned int) numtriangles * 3;i++)
+ if (element3i)
{
- if (elements[i] < firstvertex || elements[i] >= firstvertex + numvertices)
+ for (i = 0;i < (unsigned int) numtriangles * 3;i++)
{
- Con_Printf("R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in elements list\n", elements[i], firstvertex, firstvertex + numvertices);
- return;
+ if (element3i[i] < firstvertex || element3i[i] >= firstvertex + numvertices)
+ {
+ Con_Printf("R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in element3i array\n", element3i[i], firstvertex, firstvertex + numvertices);
+ return;
+ }
+ }
+ }
+ if (element3s)
+ {
+ for (i = 0;i < (unsigned int) numtriangles * 3;i++)
+ {
+ if (element3s[i] < firstvertex || element3s[i] >= firstvertex + numvertices)
+ {
+ Con_Printf("R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in element3s array\n", element3s[i], firstvertex, firstvertex + numvertices);
+ return;
+ }
}
}
CHECKGLERROR
CHECKGLERROR
if (gl_mesh_testmanualfeeding.integer)
{
- unsigned int i, j;
+ unsigned int i, j, element;
const GLfloat *p;
qglBegin(GL_TRIANGLES);
for (i = 0;i < (unsigned int) numtriangles * 3;i++)
{
+ element = element3i ? element3i[i] : element3s[i];
for (j = 0;j < backendarrayunits;j++)
{
if (gl_state.units[j].pointer_texcoord && gl_state.units[j].arrayenabled)
{
if (gl_state.units[j].arraycomponents == 4)
{
- p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 4;
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 4;
qglMultiTexCoord4f(GL_TEXTURE0_ARB + j, p[0], p[1], p[2], p[3]);
}
else if (gl_state.units[j].arraycomponents == 3)
{
- p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 3;
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 3;
qglMultiTexCoord3f(GL_TEXTURE0_ARB + j, p[0], p[1], p[2]);
}
else if (gl_state.units[j].arraycomponents == 2)
{
- p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 2;
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 2;
qglMultiTexCoord2f(GL_TEXTURE0_ARB + j, p[0], p[1]);
}
else
{
- p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 1;
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 1;
qglMultiTexCoord1f(GL_TEXTURE0_ARB + j, p[0]);
}
}
{
if (gl_state.units[j].arraycomponents == 4)
{
- p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 4;
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 4;
qglTexCoord4f(p[0], p[1], p[2], p[3]);
}
else if (gl_state.units[j].arraycomponents == 3)
{
- p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 3;
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 3;
qglTexCoord3f(p[0], p[1], p[2]);
}
else if (gl_state.units[j].arraycomponents == 2)
{
- p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 2;
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 2;
qglTexCoord2f(p[0], p[1]);
}
else
{
- p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 1;
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 1;
qglTexCoord1f(p[0]);
}
}
}
if (gl_state.pointer_color && gl_state.pointer_color_enabled)
{
- p = ((const GLfloat *)(gl_state.pointer_color)) + elements[i] * 4;
+ p = ((const GLfloat *)(gl_state.pointer_color)) + element * 4;
qglColor4f(p[0], p[1], p[2], p[3]);
}
- p = ((const GLfloat *)(gl_state.pointer_vertex)) + elements[i] * 3;
+ p = ((const GLfloat *)(gl_state.pointer_vertex)) + element * 3;
qglVertex3f(p[0], p[1], p[2]);
}
qglEnd();
{
int i;
qglBegin(GL_TRIANGLES);
- for (i = 0;i < numtriangles * 3;i++)
+ if (element3i)
{
- qglArrayElement(elements[i]);
+ for (i = 0;i < numtriangles * 3;i++)
+ qglArrayElement(element3i[i]);
+ }
+ else if (element3s)
+ {
+ for (i = 0;i < numtriangles * 3;i++)
+ qglArrayElement(element3s[i]);
}
qglEnd();
CHECKGLERROR
}
- else if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ else if (bufferobject3s)
{
- GL_BindEBO(bufferobject);
- qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices, numelements, GL_UNSIGNED_INT, bufferobject ? (void *)bufferoffset : elements);
- CHECKGLERROR
+ GL_BindEBO(bufferobject3s);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices - 1, numelements, GL_UNSIGNED_SHORT, (void *)(firsttriangle * sizeof(unsigned short[3])));
+ CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_SHORT, (void *)(firsttriangle * sizeof(unsigned short[3])));
+ CHECKGLERROR
+ }
}
- else
+ else if (bufferobject3i)
{
- GL_BindEBO(bufferobject);
- qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, bufferobject ? (void *)bufferoffset : elements);
- CHECKGLERROR
+ GL_BindEBO(bufferobject3i);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices - 1, numelements, GL_UNSIGNED_INT, (void *)(firsttriangle * sizeof(unsigned int[3])));
+ CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, (void *)(firsttriangle * sizeof(unsigned int[3])));
+ CHECKGLERROR
+ }
+ }
+ else if (element3s)
+ {
+ GL_BindEBO(0);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices - 1, numelements, GL_UNSIGNED_SHORT, element3s);
+ CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_SHORT, element3s);
+ CHECKGLERROR
+ }
+ }
+ else if (element3i)
+ {
+ GL_BindEBO(0);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices - 1, numelements, GL_UNSIGNED_INT, element3i);
+ CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, element3i);
+ CHECKGLERROR
+ }
}
}
}
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);CHECKGLERROR
}
-int R_Mesh_CreateStaticEBO(void *data, size_t size)
+int R_Mesh_CreateStaticBufferObject(unsigned int target, void *data, size_t size, const char *name)
{
+ gl_bufferobjectinfo_t *info;
GLuint bufferobject;
+
+ if (!gl_vbo.integer)
+ return 0;
+
qglGenBuffersARB(1, &bufferobject);
- GL_BindEBO(bufferobject);
- qglBufferDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, size, data, GL_STATIC_DRAW_ARB);
+ switch(target)
+ {
+ case GL_ELEMENT_ARRAY_BUFFER_ARB: GL_BindEBO(bufferobject);break;
+ case GL_ARRAY_BUFFER_ARB: GL_BindVBO(bufferobject);break;
+ default: Sys_Error("R_Mesh_CreateStaticBufferObject: unknown target type %i\n", target);return 0;
+ }
+ qglBufferDataARB(target, size, data, GL_STATIC_DRAW_ARB);
+
+ info = (gl_bufferobjectinfo_t *) Mem_ExpandableArray_AllocRecord(&gl_bufferobjectinfoarray);
+ memset(info, 0, sizeof(*info));
+ info->target = target;
+ info->object = bufferobject;
+ info->size = size;
+ strlcpy(info->name, name, sizeof(info->name));
+
return (int)bufferobject;
}
-void R_Mesh_DestroyEBO(int bufferobject)
+void R_Mesh_DestroyBufferObject(int bufferobject)
{
+ int i, endindex;
+ gl_bufferobjectinfo_t *info;
+
qglDeleteBuffersARB(1, (GLuint *)&bufferobject);
-}
-int R_Mesh_CreateStaticVBO(void *data, size_t size)
-{
- GLuint bufferobject;
- qglGenBuffersARB(1, &bufferobject);
- GL_BindVBO(bufferobject);
- qglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, data, GL_STATIC_DRAW_ARB);
- return (int)bufferobject;
+ endindex = Mem_ExpandableArray_IndexRange(&gl_bufferobjectinfoarray);
+ for (i = 0;i < endindex;i++)
+ {
+ info = (gl_bufferobjectinfo_t *) Mem_ExpandableArray_RecordAtIndex(&gl_bufferobjectinfoarray, i);
+ if (!info)
+ continue;
+ if (info->object == bufferobject)
+ {
+ Mem_ExpandableArray_FreeRecord(&gl_bufferobjectinfoarray, (void *)info);
+ break;
+ }
+ }
}
-void R_Mesh_DestroyVBO(int bufferobject)
+void GL_Mesh_ListVBOs(qboolean printeach)
{
- qglDeleteBuffersARB(1, (GLuint *)&bufferobject);
+ int i, endindex;
+ size_t ebocount = 0, ebomemory = 0;
+ size_t vbocount = 0, vbomemory = 0;
+ gl_bufferobjectinfo_t *info;
+ endindex = Mem_ExpandableArray_IndexRange(&gl_bufferobjectinfoarray);
+ for (i = 0;i < endindex;i++)
+ {
+ info = (gl_bufferobjectinfo_t *) Mem_ExpandableArray_RecordAtIndex(&gl_bufferobjectinfoarray, i);
+ if (!info)
+ continue;
+ switch(info->target)
+ {
+ case GL_ELEMENT_ARRAY_BUFFER_ARB: ebocount++;ebomemory += info->size;if (printeach) Con_Printf("EBO #%i %s = %i bytes\n", info->object, info->name, (int)info->size);break;
+ case GL_ARRAY_BUFFER_ARB: vbocount++;vbomemory += info->size;if (printeach) Con_Printf("VBO #%i %s = %i bytes\n", info->object, info->name, (int)info->size);break;
+ default: Con_Printf("gl_vbostats: unknown target type %i\n", info->target);break;
+ }
+ }
+ Con_Printf("vertex buffers: %i element buffers totalling %i bytes (%.3f MB), %i vertex buffers totalling %i bytes (%.3f MB), combined %i bytes (%.3fMB)\n", (int)ebocount, (int)ebomemory, ebomemory / 1048576.0, (int)vbocount, (int)vbomemory, vbomemory / 1048576.0, (int)(ebomemory + vbomemory), (ebomemory + vbomemory) / 1048576.0);
}
void R_Mesh_Matrix(const matrix4x4_t *matrix)
void R_Mesh_VertexPointer(const float *vertex3f, int bufferobject, size_t bufferoffset)
{
+ if (!gl_vbo.integer)
+ bufferobject = 0;
if (gl_state.pointer_vertex != vertex3f || gl_state.pointer_vertex_buffer != bufferobject || gl_state.pointer_vertex_offset != bufferoffset)
{
gl_state.pointer_vertex = vertex3f;
void R_Mesh_ColorPointer(const float *color4f, int bufferobject, size_t bufferoffset)
{
- if (color4f || bufferobject)
+ // note: this can not rely on bufferobject to decide whether a color array
+ // is supplied, because surfmesh_t shares one vbo for all arrays, which
+ // means that a valid vbo may be supplied even if there is no color array.
+ if (color4f)
{
+ if (!gl_vbo.integer)
+ bufferobject = 0;
// caller wants color array enabled
if (!gl_state.pointer_color_enabled)
{
gltextureunit_t *unit = gl_state.units + unitnum;
// update array settings
CHECKGLERROR
- if (texcoord || bufferobject)
+ // note: there is no need to check bufferobject here because all cases
+ // that involve a valid bufferobject also supply a texcoord array
+ if (texcoord)
{
+ if (!gl_vbo.integer)
+ bufferobject = 0;
// texture array unit is enabled, enable the array
if (!unit->arrayenabled)
{
}
}
+static const double gl_identitymatrix[16] = {1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1};
+
void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix)
{
gltextureunit_t *unit = gl_state.units + unitnum;
unit->matrix = *matrix;
CHECKGLERROR
Matrix4x4_ToArrayDoubleGL(&unit->matrix, glmatrix);
- qglMatrixMode(GL_TEXTURE);CHECKGLERROR
GL_ActiveTexture(unitnum);
+ qglMatrixMode(GL_TEXTURE);CHECKGLERROR
qglLoadMatrixd(glmatrix);CHECKGLERROR
qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
}
if (unit->texmatrixenabled)
{
unit->texmatrixenabled = false;
+ unit->matrix = identitymatrix;
CHECKGLERROR
- qglMatrixMode(GL_TEXTURE);CHECKGLERROR
GL_ActiveTexture(unitnum);
+ qglMatrixMode(GL_TEXTURE);CHECKGLERROR
qglLoadIdentity();CHECKGLERROR
qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
}
for (i = 0;i < backendarrayunits;i++)
{
if (m->pointer_texcoord3f[i])
- R_Mesh_TexCoordPointer(i, 3, m->pointer_texcoord3f[i], 0, 0);
+ R_Mesh_TexCoordPointer(i, 3, m->pointer_texcoord3f[i], m->pointer_texcoord_bufferobject[i], m->pointer_texcoord_bufferoffset[i]);
else
- R_Mesh_TexCoordPointer(i, 2, m->pointer_texcoord[i], 0, 0);
+ R_Mesh_TexCoordPointer(i, 2, m->pointer_texcoord[i], m->pointer_texcoord_bufferobject[i], m->pointer_texcoord_bufferoffset[i]);
}
for (i = 0;i < backendunits;i++)
{
if (unit->texmatrixenabled)
{
unit->texmatrixenabled = false;
+ unit->matrix = identitymatrix;
CHECKGLERROR
- qglMatrixMode(GL_TEXTURE);CHECKGLERROR
GL_ActiveTexture(unitnum);
+ qglMatrixMode(GL_TEXTURE);CHECKGLERROR
qglLoadIdentity();CHECKGLERROR
qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
}
}
}
}
-
-void R_Mesh_Draw_ShowTris(int firstvertex, int numvertices, int numtriangles, const int *elements)
-{
- CHECKGLERROR
- qglBegin(GL_LINES);
- for (;numtriangles;numtriangles--, elements += 3)
- {
- qglArrayElement(elements[0]);qglArrayElement(elements[1]);
- qglArrayElement(elements[1]);qglArrayElement(elements[2]);
- qglArrayElement(elements[2]);qglArrayElement(elements[0]);
- }
- qglEnd();
- CHECKGLERROR
-}
projects / xonotic / darkplaces.git / blobdiff