huge audit of dprints throughout engine, all notices of successfully

[xonotic/darkplaces.git] / gl_backend.c

diff --git a/gl_backend.c b/gl_backend.c
index 8b4dbdcbaf5bebff8d7dfc962fafc4a81e7966a0..fefdf7f3db32fa883290f9ca0508a9d607e187ac 100644 (file)
--- a/gl_backend.c
+++ b/gl_backend.c
@@ -14,9 +14,9 @@ cvar_t gl_polyblend = {CVAR_SAVE, "gl_polyblend", "1", "tints view while underwa
 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_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 = {0, "gl_vbo", "1", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering"};
+cvar_t gl_vbo = {CVAR_SAVE, "gl_vbo", "1", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering"};

 
 

-cvar_t v_flipped = {0, "v_flipped", "0", "mirror the screen (poor man's left handed mode"};
+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;
 qboolean v_flipped_state = false;
 
 int gl_maxdrawrangeelementsvertices;


@@ -165,7 +165,6 @@ memexpandablearray_t gl_bufferobjectinfoarray;
 
 static void gl_backend_start(void)
 {
 
 static void gl_backend_start(void)
 {

-       Con_Print("OpenGL Backend starting...\n");

        CHECKGLERROR
 
        if (qglDrawRangeElements != NULL)
        CHECKGLERROR
 
        if (qglDrawRangeElements != NULL)


@@ -175,7 +174,7 @@ static void gl_backend_start(void)
                CHECKGLERROR
                qglGetIntegerv(GL_MAX_ELEMENTS_INDICES, &gl_maxdrawrangeelementsindices);
                CHECKGLERROR
                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);
        }
 
        backendunits = bound(1, gl_textureunits, MAX_TEXTUREUNITS);


@@ -188,20 +187,18 @@ static void gl_backend_start(void)
                CHECKGLERROR
                qglGetIntegerv(GL_MAX_TEXTURE_COORDS_ARB, (int *)&backendarrayunits);
                CHECKGLERROR
                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);
        }
                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
        else

-               Con_Printf("singletexture\n");
+               Con_DPrintf("GL_MAX_TEXTUREUNITS = %i\n", backendunits);

 
        GL_Backend_AllocArrays();
 
        Mem_ExpandableArray_NewArray(&gl_bufferobjectinfoarray, r_main_mempool, sizeof(gl_bufferobjectinfo_t), 128);
 
 
        GL_Backend_AllocArrays();
 
        Mem_ExpandableArray_NewArray(&gl_bufferobjectinfoarray, r_main_mempool, sizeof(gl_bufferobjectinfo_t), 128);
 

-       Con_Printf("OpenGL backend started.\n");
+       Con_DPrintf("OpenGL backend started.\n");

 
        CHECKGLERROR
 
 
        CHECKGLERROR
 


@@ -215,7 +212,7 @@ static void gl_backend_shutdown(void)
        backendarrayunits = 0;
        backendactive = false;
 
        backendarrayunits = 0;
        backendactive = false;
 

-       Con_Print("OpenGL Backend shutting down\n");
+       Con_DPrint("OpenGL Backend shutting down\n");

 
        Mem_ExpandableArray_FreeArray(&gl_bufferobjectinfoarray);
 
 
        Mem_ExpandableArray_FreeArray(&gl_bufferobjectinfoarray);
 


@@ -265,27 +262,29 @@ void gl_backend_init(void)
        Cvar_RegisterVariable(&gl_mesh_testarrayelement);
        Cvar_RegisterVariable(&gl_mesh_testmanualfeeding);
 
        Cvar_RegisterVariable(&gl_mesh_testarrayelement);
        Cvar_RegisterVariable(&gl_mesh_testmanualfeeding);
 

-       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\n");
+       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);
 }
 
 
        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;
 void GL_SetupView_Orientation_Identity (void)
 {
        backend_viewmatrix = identitymatrix;

-       v_flipped_state = false;
+       GL_SetMirrorState(false);

        memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));
 }
 
 void GL_SetupView_Orientation_FromEntity(const matrix4x4_t *matrix)
 {
        matrix4x4_t tempmatrix, basematrix;
        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);
 
        Matrix4x4_CreateRotate(&basematrix, -90, 1, 0, 0);
        Matrix4x4_ConcatRotate(&basematrix, 90, 0, 0, 1);
        Matrix4x4_Concat(&backend_viewmatrix, &basematrix, &tempmatrix);
 

-       v_flipped_state = v_flipped.integer;
+       GL_SetMirrorState(v_flipped.integer);

        if(v_flipped_state)
        {
                Matrix4x4_Transpose(&basematrix, &backend_viewmatrix);
        if(v_flipped_state)
        {
                Matrix4x4_Transpose(&basematrix, &backend_viewmatrix);


@@ -297,7 +296,11 @@ void GL_SetupView_Orientation_FromEntity(const matrix4x4_t *matrix)
        //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]);
        //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));
        memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));

+       R_Mesh_Matrix(&tempmatrix);

 }
 
 void GL_SetupView_Mode_Perspective (double frustumx, double frustumy, double zNear, double zFar)
 }
 
 void GL_SetupView_Mode_Perspective (double frustumx, double frustumy, double zNear, double zFar)


@@ -366,6 +369,65 @@ void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double
        CHECKGLERROR
 }
 
        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;
 typedef struct gltextureunit_s
 {
        const void *pointer_texcoord;


@@ -394,6 +456,7 @@ static struct gl_state_s
        int colormask; // stored as bottom 4 bits: r g b a (3 2 1 0 order)
        int depthtest;
        float depthrange[2];
        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;
        int alphatest;
        int scissortest;
        unsigned int unit;


@@ -544,8 +607,10 @@ void GL_Backend_ResetState(void)
        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.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.cullfaceenable = true;

+       gl_state.polygonoffset[0] = 0;
+       gl_state.polygonoffset[1] = 0;

 
        CHECKGLERROR
 
 
        CHECKGLERROR
 


@@ -559,6 +624,7 @@ void GL_Backend_ResetState(void)
        qglDepthFunc(GL_LEQUAL);CHECKGLERROR
        qglEnable(GL_DEPTH_TEST);CHECKGLERROR
        qglDepthMask(gl_state.depthmask);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)
        {
 
        if (gl_support_arb_vertex_buffer_object)
        {


@@ -678,6 +744,29 @@ void GL_DepthRange(float nearfrac, float 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
 void GL_CullFace(int state)
 {
        CHECKGLERROR


@@ -815,9 +904,9 @@ void GL_TransformToScreen(const vec4_t in, vec4_t out)
        Matrix4x4_Transform4 (&backend_viewmatrix, in, temp);
        Matrix4x4_Transform4 (&backend_projectmatrix, temp, out);
        iw = 1.0f / out[3];
        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
 }
 
 // called at beginning of frame


@@ -845,8 +934,15 @@ qboolean GL_Backend_CompileShader(int programobject, GLenum shadertypeenum, cons
        qglCompileShaderARB(shaderobject);CHECKGLERROR
        qglGetObjectParameterivARB(shaderobject, GL_OBJECT_COMPILE_STATUS_ARB, &shadercompiled);CHECKGLERROR
        qglGetInfoLogARB(shaderobject, sizeof(compilelog), NULL, compilelog);CHECKGLERROR
        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
        if (!shadercompiled)
        {
                qglDeleteObjectARB(shaderobject);CHECKGLERROR


@@ -933,7 +1029,7 @@ void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int *
                Con_Printf("R_Mesh_Draw(%d, %d, %d, %8p, %i, %p);\n", firstvertex, numvertices, numtriangles, elements, bufferobject, (void *)bufferoffset);
                return;
        }
                Con_Printf("R_Mesh_Draw(%d, %d, %d, %8p, %i, %p);\n", firstvertex, numvertices, numtriangles, elements, bufferobject, (void *)bufferoffset);
                return;
        }

-       if (!gl_vbo.integer)
+       if (gl_vbo.integer != 1)

                bufferobject = 0;
        CHECKGLERROR
        r_refdef.stats.meshes++;
                bufferobject = 0;
        CHECKGLERROR
        r_refdef.stats.meshes++;