X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fmatrix.c;h=ebc3cbd59c32236846b42c9d4689d4159433c2f5;hb=4147bb24d49a10498e00039fc1dc9aa5f1316777;hp=7e2d91e631c4a0919a1624ebe87b643e49440951;hpb=6dc85575000127630489b407c50a4b3ea87c9acb;p=mesa.git diff --git a/src/mesa/main/matrix.c b/src/mesa/main/matrix.c index 7e2d91e631c..ebc3cbd59c3 100644 --- a/src/mesa/main/matrix.c +++ b/src/mesa/main/matrix.c @@ -1,18 +1,9 @@ -/** - * \file matrix.c - * Matrix operations. - * - * \note - * -# 4x4 transformation matrices are stored in memory in column major order. - * -# Points/vertices are to be thought of as column vectors. - * -# Transformation of a point p by a matrix M is: p' = M * p - */ - /* * Mesa 3-D graphics library - * Version: 5.1 + * Version: 7.5 * - * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -33,9 +24,19 @@ */ +/** + * \file matrix.c + * Matrix operations. + * + * \note + * -# 4x4 transformation matrices are stored in memory in column major order. + * -# Points/vertices are to be thought of as column vectors. + * -# Transformation of a point p by a matrix M is: p' = M * p + */ + + #include "glheader.h" #include "imports.h" -#include "buffers.h" #include "context.h" #include "enums.h" #include "macros.h" @@ -60,7 +61,7 @@ * the top matrix of the current matrix stack and sets * __GLcontextRec::NewState. */ -void +void GLAPIENTRY _mesa_Frustum( GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble nearval, GLdouble farval ) @@ -102,7 +103,7 @@ _mesa_Frustum( GLdouble left, GLdouble right, * the top matrix of the current matrix stack and sets * __GLcontextRec::NewState. */ -void +void GLAPIENTRY _mesa_Ortho( GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble nearval, GLdouble farval ) @@ -111,7 +112,7 @@ _mesa_Ortho( GLdouble left, GLdouble right, ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glFrustum(%f, %f, %f, %f, %f, %f)\n", + _mesa_debug(ctx, "glOrtho(%f, %f, %f, %f, %f, %f)\n", left, right, bottom, top, nearval, farval); if (left == right || @@ -141,7 +142,7 @@ _mesa_Ortho( GLdouble left, GLdouble right, * __GLcontextRec::CurrentStack and gl_transform_attrib::MatrixMode with the * specified matrix stack. */ -void +void GLAPIENTRY _mesa_MatrixMode( GLenum mode ) { GET_CURRENT_CONTEXT(ctx); @@ -159,6 +160,21 @@ _mesa_MatrixMode( GLenum mode ) ctx->CurrentStack = &ctx->ProjectionMatrixStack; break; case GL_TEXTURE: + /* This error check is disabled because if we're called from + * glPopAttrib() when the active texture unit is >= MaxTextureCoordUnits + * we'll generate an unexpected error. + * From the GL_ARB_vertex_shader spec it sounds like we should instead + * do error checking in other places when we actually try to access + * texture matrices beyond MaxTextureCoordUnits. + */ +#if 0 + if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glMatrixMode(invalid tex unit %d)", + ctx->Texture.CurrentUnit); + return; + } +#endif + ASSERT(ctx->Texture.CurrentUnit < Elements(ctx->TextureMatrixStack)); ctx->CurrentStack = &ctx->TextureMatrixStack[ctx->Texture.CurrentUnit]; break; case GL_COLOR: @@ -190,7 +206,7 @@ _mesa_MatrixMode( GLenum mode ) case GL_MATRIX7_ARB: if (ctx->Extensions.ARB_vertex_program || ctx->Extensions.ARB_fragment_program) { - const GLint m = mode - GL_MATRIX0_ARB; + const GLuint m = mode - GL_MATRIX0_ARB; if (m > ctx->Const.MaxProgramMatrices) { _mesa_error(ctx, GL_INVALID_ENUM, "glMatrixMode(GL_MATRIX%d_ARB)", m); @@ -221,11 +237,11 @@ _mesa_MatrixMode( GLenum mode ) * matrix in the stack. Marks __GLcontextRec::NewState with the stack dirty * flag. */ -void +void GLAPIENTRY _mesa_PushMatrix( void ) { GET_CURRENT_CONTEXT(ctx); - struct matrix_stack *stack = ctx->CurrentStack; + struct gl_matrix_stack *stack = ctx->CurrentStack; ASSERT_OUTSIDE_BEGIN_END(ctx); if (MESA_VERBOSE&VERBOSE_API) @@ -233,7 +249,15 @@ _mesa_PushMatrix( void ) _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode)); if (stack->Depth + 1 >= stack->MaxDepth) { - _mesa_error( ctx, GL_STACK_OVERFLOW, "glPushMatrix" ); + if (ctx->Transform.MatrixMode == GL_TEXTURE) { + _mesa_error(ctx, GL_STACK_OVERFLOW, + "glPushMatrix(mode=GL_TEXTURE, unit=%d)", + ctx->Texture.CurrentUnit); + } + else { + _mesa_error(ctx, GL_STACK_OVERFLOW, "glPushMatrix(mode=%s)", + _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode)); + } return; } _math_matrix_copy( &stack->Stack[stack->Depth + 1], @@ -253,11 +277,11 @@ _mesa_PushMatrix( void ) * moves the stack head down. Marks __GLcontextRec::NewState with the dirty * stack flag. */ -void +void GLAPIENTRY _mesa_PopMatrix( void ) { GET_CURRENT_CONTEXT(ctx); - struct matrix_stack *stack = ctx->CurrentStack; + struct gl_matrix_stack *stack = ctx->CurrentStack; ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); if (MESA_VERBOSE&VERBOSE_API) @@ -265,7 +289,15 @@ _mesa_PopMatrix( void ) _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode)); if (stack->Depth == 0) { - _mesa_error( ctx, GL_STACK_UNDERFLOW, "glPopMatrix" ); + if (ctx->Transform.MatrixMode == GL_TEXTURE) { + _mesa_error(ctx, GL_STACK_UNDERFLOW, + "glPopMatrix(mode=GL_TEXTURE, unit=%d)", + ctx->Texture.CurrentUnit); + } + else { + _mesa_error(ctx, GL_STACK_UNDERFLOW, "glPopMatrix(mode=%s)", + _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode)); + } return; } stack->Depth--; @@ -283,7 +315,7 @@ _mesa_PopMatrix( void ) * matrix in the current stack. Marks __GLcontextRec::NewState with the stack * dirty flag. */ -void +void GLAPIENTRY _mesa_LoadIdentity( void ) { GET_CURRENT_CONTEXT(ctx); @@ -308,7 +340,7 @@ _mesa_LoadIdentity( void ) * in the current stack and the given matrix. Marks __GLcontextRec::NewState * with the dirty stack flag. */ -void +void GLAPIENTRY _mesa_LoadMatrixf( const GLfloat *m ) { GET_CURRENT_CONTEXT(ctx); @@ -338,7 +370,7 @@ _mesa_LoadMatrixf( const GLfloat *m ) * matrix in the current stack and the given matrix. Marks * __GLcontextRec::NewState with the dirty stack flag. */ -void +void GLAPIENTRY _mesa_MultMatrixf( const GLfloat *m ) { GET_CURRENT_CONTEXT(ctx); @@ -370,7 +402,7 @@ _mesa_MultMatrixf( const GLfloat *m ) * matrix in the current stack and the given parameters. Marks * __GLcontextRec::NewState with the dirty stack flag. */ -void +void GLAPIENTRY _mesa_Rotatef( GLfloat angle, GLfloat x, GLfloat y, GLfloat z ) { GET_CURRENT_CONTEXT(ctx); @@ -395,7 +427,7 @@ _mesa_Rotatef( GLfloat angle, GLfloat x, GLfloat y, GLfloat z ) * matrix in the current stack and the given parameters. Marks * __GLcontextRec::NewState with the dirty stack flag. */ -void +void GLAPIENTRY _mesa_Scalef( GLfloat x, GLfloat y, GLfloat z ) { GET_CURRENT_CONTEXT(ctx); @@ -406,7 +438,7 @@ _mesa_Scalef( GLfloat x, GLfloat y, GLfloat z ) /** - * Multiply the current matrix with a general scaling matrix. + * Multiply the current matrix with a translation matrix. * * \param x translation vector x coordinate. * \param y translation vector y coordinate. @@ -418,7 +450,7 @@ _mesa_Scalef( GLfloat x, GLfloat y, GLfloat z ) * matrix in the current stack and the given parameters. Marks * __GLcontextRec::NewState with the dirty stack flag. */ -void +void GLAPIENTRY _mesa_Translatef( GLfloat x, GLfloat y, GLfloat z ) { GET_CURRENT_CONTEXT(ctx); @@ -429,7 +461,7 @@ _mesa_Translatef( GLfloat x, GLfloat y, GLfloat z ) #if _HAVE_FULL_GL -void +void GLAPIENTRY _mesa_LoadMatrixd( const GLdouble *m ) { GLint i; @@ -440,7 +472,7 @@ _mesa_LoadMatrixd( const GLdouble *m ) _mesa_LoadMatrixf(f); } -void +void GLAPIENTRY _mesa_MultMatrixd( const GLdouble *m ) { GLint i; @@ -452,21 +484,21 @@ _mesa_MultMatrixd( const GLdouble *m ) } -void +void GLAPIENTRY _mesa_Rotated( GLdouble angle, GLdouble x, GLdouble y, GLdouble z ) { _mesa_Rotatef((GLfloat) angle, (GLfloat) x, (GLfloat) y, (GLfloat) z); } -void +void GLAPIENTRY _mesa_Scaled( GLdouble x, GLdouble y, GLdouble z ) { _mesa_Scalef((GLfloat) x, (GLfloat) y, (GLfloat) z); } -void +void GLAPIENTRY _mesa_Translated( GLdouble x, GLdouble y, GLdouble z ) { _mesa_Translatef((GLfloat) x, (GLfloat) y, (GLfloat) z); @@ -475,7 +507,7 @@ _mesa_Translated( GLdouble x, GLdouble y, GLdouble z ) #if _HAVE_FULL_GL -void +void GLAPIENTRY _mesa_LoadTransposeMatrixfARB( const GLfloat *m ) { GLfloat tm[16]; @@ -485,7 +517,7 @@ _mesa_LoadTransposeMatrixfARB( const GLfloat *m ) } -void +void GLAPIENTRY _mesa_LoadTransposeMatrixdARB( const GLdouble *m ) { GLfloat tm[16]; @@ -495,7 +527,7 @@ _mesa_LoadTransposeMatrixdARB( const GLdouble *m ) } -void +void GLAPIENTRY _mesa_MultTransposeMatrixfARB( const GLfloat *m ) { GLfloat tm[16]; @@ -505,7 +537,7 @@ _mesa_MultTransposeMatrixfARB( const GLfloat *m ) } -void +void GLAPIENTRY _mesa_MultTransposeMatrixdARB( const GLdouble *m ) { GLfloat tm[16]; @@ -515,151 +547,6 @@ _mesa_MultTransposeMatrixdARB( const GLdouble *m ) } #endif -/** - * Set the viewport. - * - * \param x, y coordinates of the lower-left corner of the viewport rectangle. - * \param width width of the viewport rectangle. - * \param height height of the viewport rectangle. - * - * \sa Called via glViewport() or display list execution. - * - * Flushes the vertices and calls _mesa_set_viewport() with the given - * parameters. - */ -void -_mesa_Viewport( GLint x, GLint y, GLsizei width, GLsizei height ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _mesa_set_viewport(ctx, x, y, width, height); -} - -/** - * Set new viewport parameters and update derived state (the _WindowMap - * matrix). Usually called from _mesa_Viewport(). - * - * \note We also call _mesa_ResizeBuffersMESA() because this is a good - * time to check if the window has been resized. Many device drivers - * can't get direct notification from the window system of size changes - * so this is an ad-hoc solution to that problem. - * - * \param ctx GL context. - * \param x, y coordinates of the lower left corner of the viewport rectangle. - * \param width width of the viewport rectangle. - * \param height height of the viewport rectangle. - * - * Verifies the parameters, clamps them to the implementation dependent range - * and updates __GLcontextRec::Viewport. Computes the scale and bias values for - * the drivers and notifies the driver via the dd_function_table::Viewport - * callback. - */ -void -_mesa_set_viewport( GLcontext *ctx, GLint x, GLint y, - GLsizei width, GLsizei height ) -{ - const GLfloat n = ctx->Viewport.Near; - const GLfloat f = ctx->Viewport.Far; - - if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glViewport %d %d %d %d\n", x, y, width, height); - - if (width < 0 || height < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, - "glViewport(%d, %d, %d, %d)", x, y, width, height ); - return; - } - - /* clamp width, and height to implementation dependent range */ - width = CLAMP( width, 1, MAX_WIDTH ); - height = CLAMP( height, 1, MAX_HEIGHT ); - - /* Save viewport */ - ctx->Viewport.X = x; - ctx->Viewport.Width = width; - ctx->Viewport.Y = y; - ctx->Viewport.Height = height; - - /* Check if window/buffer has been resized and if so, reallocate the - * ancillary buffers. - */ -/* _mesa_ResizeBuffersMESA(); */ - - if (ctx->Driver.Viewport) { - (*ctx->Driver.Viewport)( ctx, x, y, width, height ); - } - - if (ctx->_RotateMode) { - GLint tmp, tmps; - tmp = x; x = y; y = tmp; - tmps = width; width = height; height = tmps; - } - - /* compute scale and bias values :: This is really driver-specific - * and should be maintained elsewhere if at all. NOTE: RasterPos - * uses this. - */ - ctx->Viewport._WindowMap.m[MAT_SX] = (GLfloat) width / 2.0F; - ctx->Viewport._WindowMap.m[MAT_TX] = ctx->Viewport._WindowMap.m[MAT_SX] + x; - ctx->Viewport._WindowMap.m[MAT_SY] = (GLfloat) height / 2.0F; - ctx->Viewport._WindowMap.m[MAT_TY] = ctx->Viewport._WindowMap.m[MAT_SY] + y; - ctx->Viewport._WindowMap.m[MAT_SZ] = ctx->DepthMaxF * ((f - n) / 2.0F); - ctx->Viewport._WindowMap.m[MAT_TZ] = ctx->DepthMaxF * ((f - n) / 2.0F + n); - ctx->Viewport._WindowMap.flags = MAT_FLAG_GENERAL_SCALE|MAT_FLAG_TRANSLATION; - ctx->Viewport._WindowMap.type = MATRIX_3D_NO_ROT; - ctx->NewState |= _NEW_VIEWPORT; - - /* Check if window/buffer has been resized and if so, reallocate the - * ancillary buffers. This is an ad-hoc solution to detecting window - * size changes. 99% of all GL apps call glViewport when a window is - * resized so this is a good time to check for new window dims and - * reallocate color buffers and ancilliary buffers. - */ - _mesa_ResizeBuffersMESA(); - - if (ctx->Driver.Viewport) { - (*ctx->Driver.Viewport)( ctx, x, y, width, height ); - } -} - - -#if _HAVE_FULL_GL -void -_mesa_DepthRange( GLclampd nearval, GLclampd farval ) -{ - /* - * nearval - specifies mapping of the near clipping plane to window - * coordinates, default is 0 - * farval - specifies mapping of the far clipping plane to window - * coordinates, default is 1 - * - * After clipping and div by w, z coords are in -1.0 to 1.0, - * corresponding to near and far clipping planes. glDepthRange - * specifies a linear mapping of the normalized z coords in - * this range to window z coords. - */ - GLfloat n, f; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (MESA_VERBOSE&VERBOSE_API) - _mesa_debug(ctx, "glDepthRange %f %f\n", nearval, farval); - - n = (GLfloat) CLAMP( nearval, 0.0, 1.0 ); - f = (GLfloat) CLAMP( farval, 0.0, 1.0 ); - - ctx->Viewport.Near = n; - ctx->Viewport.Far = f; - ctx->Viewport._WindowMap.m[MAT_SZ] = ctx->DepthMaxF * ((f - n) / 2.0F); - ctx->Viewport._WindowMap.m[MAT_TZ] = ctx->DepthMaxF * ((f - n) / 2.0F + n); - ctx->NewState |= _NEW_VIEWPORT; - - if (ctx->Driver.DepthRange) { - (*ctx->Driver.DepthRange)( ctx, nearval, farval ); - } -} -#endif - /**********************************************************************/ @@ -736,8 +623,16 @@ calculate_model_project_matrix( GLcontext *ctx ) */ void _mesa_update_modelview_project( GLcontext *ctx, GLuint new_state ) { - if (new_state & _NEW_MODELVIEW) + if (new_state & _NEW_MODELVIEW) { _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); + + /* Bring cull position uptodate. + */ + TRANSFORM_POINT3( ctx->Transform.CullObjPos, + ctx->ModelviewMatrixStack.Top->inv, + ctx->Transform.CullEyePos ); + } + if (new_state & _NEW_PROJECTION) update_projection( ctx ); @@ -768,7 +663,7 @@ void _mesa_update_modelview_project( GLcontext *ctx, GLuint new_state ) * initialize it. */ static void -init_matrix_stack( struct matrix_stack *stack, +init_matrix_stack( struct gl_matrix_stack *stack, GLuint maxDepth, GLuint dirtyFlag ) { GLuint i; @@ -794,7 +689,7 @@ init_matrix_stack( struct matrix_stack *stack, * frees the array. */ static void -free_matrix_stack( struct matrix_stack *stack ) +free_matrix_stack( struct gl_matrix_stack *stack ) { GLuint i; for (i = 0; i < stack->MaxDepth; i++) { @@ -889,49 +784,10 @@ void _mesa_init_transform( GLcontext *ctx ) ASSIGN_4V( ctx->Transform.EyeUserPlane[i], 0.0, 0.0, 0.0, 0.0 ); } ctx->Transform.ClipPlanesEnabled = 0; -} - -/** - * Initialize the context viewport attribute group. - * - * \param ctx GL context. - * - * \todo Move this to a new file with other 'viewport' routines. - */ -void _mesa_init_viewport( GLcontext *ctx ) -{ - /* Viewport group */ - ctx->Viewport.X = 0; - ctx->Viewport.Y = 0; - ctx->Viewport.Width = 0; - ctx->Viewport.Height = 0; - ctx->Viewport.Near = 0.0; - ctx->Viewport.Far = 1.0; - _math_matrix_ctr(&ctx->Viewport._WindowMap); - -#define Sz 10 -#define Tz 14 - ctx->Viewport._WindowMap.m[Sz] = 0.5F * ctx->DepthMaxF; - ctx->Viewport._WindowMap.m[Tz] = 0.5F * ctx->DepthMaxF; -#undef Sz -#undef Tz - - ctx->Viewport._WindowMap.flags = MAT_FLAG_GENERAL_SCALE|MAT_FLAG_TRANSLATION; - ctx->Viewport._WindowMap.type = MATRIX_3D_NO_ROT; + ASSIGN_4V( ctx->Transform.CullObjPos, 0.0, 0.0, 1.0, 0.0 ); + ASSIGN_4V( ctx->Transform.CullEyePos, 0.0, 0.0, 1.0, 0.0 ); } -/** - * Free the context viewport attribute group data. - * - * \param ctx GL context. - * - * \todo Move this to a new file with other 'viewport' routines. - */ -void _mesa_free_viewport_data( GLcontext *ctx ) -{ - _math_matrix_dtr(&ctx->Viewport._WindowMap); -} - /*@}*/