#ifndef GL_BACKEND_H
#define GL_BACKEND_H
+extern r_viewport_t gl_viewport;
+extern matrix4x4_t gl_modelmatrix;
+extern matrix4x4_t gl_viewmatrix;
+extern matrix4x4_t gl_modelviewmatrix;
+extern matrix4x4_t gl_projectionmatrix;
+extern matrix4x4_t gl_modelviewprojectionmatrix;
+extern float gl_modelview16f[16];
+extern float gl_modelviewprojection16f[16];
+extern qboolean gl_modelmatrixchanged;
+
#define POLYGONELEMENTS_MAXPOINTS 258
extern int polygonelement3i[(POLYGONELEMENTS_MAXPOINTS-2)*3];
extern unsigned short polygonelement3s[(POLYGONELEMENTS_MAXPOINTS-2)*3];
extern unsigned short quadelement3s[QUADELEMENTS_MAXQUADS*6];
void R_Viewport_TransformToScreen(const r_viewport_t *v, const vec4_t in, vec4_t out);
-void R_Viewport_InitOrtho(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, double x1, double y1, double x2, double y2, double zNear, double zFar, const double *nearplane);
-void R_Viewport_InitPerspective(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, double frustumx, double frustumy, double zNear, double zFar, const double *nearplane);
-void R_Viewport_InitPerspectiveInfinite(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, double frustumx, double frustumy, double zNear, const double *nearplane);
+void R_Viewport_InitOrtho(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float x1, float y1, float x2, float y2, float zNear, float zFar, const float *nearplane);
+void R_Viewport_InitPerspective(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float frustumx, float frustumy, float zNear, float zFar, const float *nearplane);
+void R_Viewport_InitPerspectiveInfinite(r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float frustumx, float frustumy, float zNear, const float *nearplane);
void R_Viewport_InitCubeSideView(r_viewport_t *v, const matrix4x4_t *cameramatrix, int side, int size, float nearclip, float farclip, const float *nearplane);
void R_Viewport_InitRectSideView(r_viewport_t *v, const matrix4x4_t *cameramatrix, int side, int size, int border, float nearclip, float farclip, const float *nearplane);
void R_SetViewport(const r_viewport_t *v);
extern cvar_t gl_paranoid;
extern cvar_t gl_printcheckerror;
-//input to R_Mesh_TextureState
-typedef struct rmeshstate_s
-{
- // textures
- int tex1d[MAX_TEXTUREUNITS];
- int tex[MAX_TEXTUREUNITS];
- int tex3d[MAX_TEXTUREUNITS];
- int texcubemap[MAX_TEXTUREUNITS];
- int texrectangle[MAX_TEXTUREUNITS];
- // texture combine settings
- int texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
- int texalphascale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
- int texcombinergb[MAX_TEXTUREUNITS]; // works with or without combine for some operations
- int texcombinealpha[MAX_TEXTUREUNITS]; // does nothing without combine
- // matrices
- matrix4x4_t texmatrix[MAX_TEXTUREUNITS];
- // pointers
- const float *pointer_texcoord[MAX_TEXTUREUNITS]; // 2D
- const float *pointer_texcoord3f[MAX_TEXTUREUNITS]; // 3D
- int pointer_texcoord_bufferobject[MAX_TEXTUREUNITS]; // 2D and 3D
- size_t pointer_texcoord_bufferoffset[MAX_TEXTUREUNITS]; // 2D and 3D
-}
-rmeshstate_t;
-
// adds console variables and registers the render module (only call from GL_Init)
void gl_backend_init(void);
void GL_Mesh_ListVBOs(qboolean printeach);
// sets up the requested vertex transform matrix
-void R_Mesh_Matrix(const matrix4x4_t *matrix);
+void R_EntityMatrix(const matrix4x4_t *matrix);
// sets the vertex array pointer
void R_Mesh_VertexPointer(const float *vertex3f, int bufferobject, size_t bufferoffset);
// sets the color array pointer (GL_Color only works when this is NULL)
void R_Mesh_ColorPointer(const float *color4f, int bufferobject, size_t bufferoffset);
// sets the texcoord array pointer for an array unit
void R_Mesh_TexCoordPointer(unsigned int unitnum, unsigned int numcomponents, const float *texcoord, int bufferobject, size_t bufferoffset);
+// returns current texture bound to this identifier
+int R_Mesh_TexBound(unsigned int unitnum, int id);
+// copies a section of the framebuffer to a 2D texture
+void R_Mesh_CopyToTexture(int texnum, int tx, int ty, int sx, int sy, int width, int height);
// sets all textures bound to an image unit (multiple can be non-zero at once, according to OpenGL rules the highest one overrides the others)
-void R_Mesh_TexBindAll(unsigned int unitnum, int tex1d, int tex2d, int tex3d, int texcubemap, int texrectangle);
-// sets these are like TexBindAll with only one of the texture indices non-zero
-// (binds one texture type and unbinds all other types)
+void R_Mesh_TexBindAll(unsigned int unitnum, int tex2d, int tex3d, int texcubemap, int texrectangle);
+// equivalent to R_Mesh_TexBindAll(unitnum,tex2d,0,0,0)
void R_Mesh_TexBind(unsigned int unitnum, int texnum);
-void R_Mesh_TexBind3D(unsigned int unitnum, int texnum);
-void R_Mesh_TexBindCubeMap(unsigned int unitnum, int texnum);
-void R_Mesh_TexBindRectangle(unsigned int unitnum, int texnum);
-// sets the texcoord matrix for a texenv unit
+// sets the texcoord matrix for a texenv unit, can be NULL or blank (will use identity)
void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix);
// sets the combine state for a texenv unit
void R_Mesh_TexCombine(unsigned int unitnum, int combinergb, int combinealpha, int rgbscale, int alphascale);
-// set up the requested texture state
-void R_Mesh_TextureState(const rmeshstate_t *m);
-// set up a blank texture state (faster/easier specialized version of R_Mesh_TextureState)
+// set up a blank texture state (unbinds all textures, texcoord pointers, and resets combine settings)
void R_Mesh_ResetTextureState(void);
// renders a mesh
projects / xonotic / darkplaces.git / blobdiff