X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fmatrix.c;h=83f081e88e5d37c59c9962e037a2994d7af77121;hb=48e4fa7dd8c4b777989c4a731d6ac54cfe6c24eb;hp=76ca28451f74f1649cb9923b1afb62fe1eb1fb61;hpb=c40d1dd62dd9bcbb97128e37a75d991a8d3b2d8c;p=mesa.git diff --git a/src/mesa/main/matrix.c b/src/mesa/main/matrix.c index 76ca28451f7..83f081e88e5 100644 --- a/src/mesa/main/matrix.c +++ b/src/mesa/main/matrix.c @@ -1,18 +1,8 @@ -/** - * \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 * - * 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"), @@ -27,22 +17,33 @@ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + + +/** + * \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" #include "matrix.h" #include "mtypes.h" #include "math/m_matrix.h" -#include "math/m_xform.h" +#include "util/bitscan.h" /** @@ -59,7 +60,7 @@ * * Flushes vertices and validates parameters. Calls _math_matrix_frustum() with * the top matrix of the current matrix stack and sets - * __GLcontextRec::NewState. + * __struct gl_contextRec::NewState. */ void GLAPIENTRY _mesa_Frustum( GLdouble left, GLdouble right, @@ -67,7 +68,8 @@ _mesa_Frustum( GLdouble left, GLdouble right, GLdouble nearval, GLdouble farval ) { GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + FLUSH_VERTICES(ctx, 0); if (nearval <= 0.0 || farval <= 0.0 || @@ -101,7 +103,7 @@ _mesa_Frustum( GLdouble left, GLdouble right, * * Flushes vertices and validates parameters. Calls _math_matrix_ortho() with * the top matrix of the current matrix stack and sets - * __GLcontextRec::NewState. + * __struct gl_contextRec::NewState. */ void GLAPIENTRY _mesa_Ortho( GLdouble left, GLdouble right, @@ -109,10 +111,11 @@ _mesa_Ortho( GLdouble left, GLdouble right, GLdouble nearval, GLdouble farval ) { GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + FLUSH_VERTICES(ctx, 0); 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 || @@ -139,18 +142,16 @@ _mesa_Ortho( GLdouble left, GLdouble right, * \sa glMatrixMode(). * * Flushes the vertices, validates the parameter and updates - * __GLcontextRec::CurrentStack and gl_transform_attrib::MatrixMode with the - * specified matrix stack. + * __struct gl_contextRec::CurrentStack and gl_transform_attrib::MatrixMode + * with the specified matrix stack. */ void GLAPIENTRY _mesa_MatrixMode( GLenum mode ) { GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); if (ctx->Transform.MatrixMode == mode && mode != GL_TEXTURE) return; - FLUSH_VERTICES(ctx, _NEW_TRANSFORM); switch (mode) { case GL_MODELVIEW: @@ -160,26 +161,23 @@ _mesa_MatrixMode( GLenum mode ) ctx->CurrentStack = &ctx->ProjectionMatrixStack; break; case GL_TEXTURE: - ctx->CurrentStack = &ctx->TextureMatrixStack[ctx->Texture.CurrentUnit]; - break; - case GL_COLOR: - ctx->CurrentStack = &ctx->ColorMatrixStack; - break; - case GL_MATRIX0_NV: - case GL_MATRIX1_NV: - case GL_MATRIX2_NV: - case GL_MATRIX3_NV: - case GL_MATRIX4_NV: - case GL_MATRIX5_NV: - case GL_MATRIX6_NV: - case GL_MATRIX7_NV: - if (ctx->Extensions.NV_vertex_program) { - ctx->CurrentStack = &ctx->ProgramMatrixStack[mode - GL_MATRIX0_NV]; - } - else { - _mesa_error( ctx, GL_INVALID_ENUM, "glMatrixMode(mode)" ); + /* 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 < ARRAY_SIZE(ctx->TextureMatrixStack)); + ctx->CurrentStack = &ctx->TextureMatrixStack[ctx->Texture.CurrentUnit]; break; case GL_MATRIX0_ARB: case GL_MATRIX1_ARB: @@ -189,8 +187,9 @@ _mesa_MatrixMode( GLenum mode ) case GL_MATRIX5_ARB: case GL_MATRIX6_ARB: case GL_MATRIX7_ARB: - if (ctx->Extensions.ARB_vertex_program || - ctx->Extensions.ARB_fragment_program) { + if (ctx->API == API_OPENGL_COMPAT + && (ctx->Extensions.ARB_vertex_program || + ctx->Extensions.ARB_fragment_program)) { const GLuint m = mode - GL_MATRIX0_ARB; if (m > ctx->Const.MaxProgramMatrices) { _mesa_error(ctx, GL_INVALID_ENUM, @@ -219,24 +218,49 @@ _mesa_MatrixMode( GLenum mode ) * \sa glPushMatrix(). * * Verifies the current matrix stack is not full, and duplicates the top-most - * matrix in the stack. Marks __GLcontextRec::NewState with the stack dirty - * flag. + * matrix in the stack. + * Marks __struct gl_contextRec::NewState with the stack dirty flag. */ void GLAPIENTRY _mesa_PushMatrix( void ) { GET_CURRENT_CONTEXT(ctx); - struct matrix_stack *stack = ctx->CurrentStack; - ASSERT_OUTSIDE_BEGIN_END(ctx); + struct gl_matrix_stack *stack = ctx->CurrentStack; if (MESA_VERBOSE&VERBOSE_API) _mesa_debug(ctx, "glPushMatrix %s\n", - _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode)); + _mesa_enum_to_string(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_enum_to_string(ctx->Transform.MatrixMode)); + } return; } + if (stack->Depth + 1 >= stack->StackSize) { + unsigned new_stack_size = stack->StackSize * 2; + unsigned i; + GLmatrix *new_stack = realloc(stack->Stack, + sizeof(*new_stack) * new_stack_size); + + if (!new_stack) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glPushMatrix()"); + return; + } + + for (i = stack->StackSize; i < new_stack_size; i++) + _math_matrix_ctr(&new_stack[i]); + + stack->Stack = new_stack; + stack->StackSize = new_stack_size; + } + _math_matrix_copy( &stack->Stack[stack->Depth + 1], &stack->Stack[stack->Depth] ); stack->Depth++; @@ -251,22 +275,31 @@ _mesa_PushMatrix( void ) * \sa glPopMatrix(). * * Flushes the vertices, verifies the current matrix stack is not empty, and - * moves the stack head down. Marks __GLcontextRec::NewState with the dirty - * stack flag. + * moves the stack head down. + * Marks __struct gl_contextRec::NewState with the dirty stack flag. */ void GLAPIENTRY _mesa_PopMatrix( void ) { GET_CURRENT_CONTEXT(ctx); - struct matrix_stack *stack = ctx->CurrentStack; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + struct gl_matrix_stack *stack = ctx->CurrentStack; + + FLUSH_VERTICES(ctx, 0); if (MESA_VERBOSE&VERBOSE_API) _mesa_debug(ctx, "glPopMatrix %s\n", - _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode)); + _mesa_enum_to_string(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_enum_to_string(ctx->Transform.MatrixMode)); + } return; } stack->Depth--; @@ -280,18 +313,19 @@ _mesa_PopMatrix( void ) * * \sa glLoadIdentity(). * - * Flushes the vertices and calls _math_matrix_set_identity() with the top-most - * matrix in the current stack. Marks __GLcontextRec::NewState with the stack - * dirty flag. + * Flushes the vertices and calls _math_matrix_set_identity() with the + * top-most matrix in the current stack. + * Marks __struct gl_contextRec::NewState with the stack dirty flag. */ void GLAPIENTRY _mesa_LoadIdentity( void ) { GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + FLUSH_VERTICES(ctx, 0); if (MESA_VERBOSE & VERBOSE_API) - _mesa_debug(ctx, "glLoadIdentity()"); + _mesa_debug(ctx, "glLoadIdentity()\n"); _math_matrix_set_identity( ctx->CurrentStack->Top ); ctx->NewState |= ctx->CurrentStack->DirtyFlag; @@ -305,9 +339,9 @@ _mesa_LoadIdentity( void ) * * \sa glLoadMatrixf(). * - * Flushes the vertices and calls _math_matrix_loadf() with the top-most matrix - * in the current stack and the given matrix. Marks __GLcontextRec::NewState - * with the dirty stack flag. + * Flushes the vertices and calls _math_matrix_loadf() with the top-most + * matrix in the current stack and the given matrix. + * Marks __struct gl_contextRec::NewState with the dirty stack flag. */ void GLAPIENTRY _mesa_LoadMatrixf( const GLfloat *m ) @@ -322,9 +356,11 @@ _mesa_LoadMatrixf( const GLfloat *m ) m[2], m[6], m[10], m[14], m[3], m[7], m[11], m[15]); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _math_matrix_loadf( ctx->CurrentStack->Top, m ); - ctx->NewState |= ctx->CurrentStack->DirtyFlag; + if (memcmp(m, ctx->CurrentStack->Top->m, 16 * sizeof(GLfloat)) != 0) { + FLUSH_VERTICES(ctx, 0); + _math_matrix_loadf( ctx->CurrentStack->Top, m ); + ctx->NewState |= ctx->CurrentStack->DirtyFlag; + } } @@ -337,7 +373,7 @@ _mesa_LoadMatrixf( const GLfloat *m ) * * Flushes the vertices and calls _math_matrix_mul_floats() with the top-most * matrix in the current stack and the given matrix. Marks - * __GLcontextRec::NewState with the dirty stack flag. + * __struct gl_contextRec::NewState with the dirty stack flag. */ void GLAPIENTRY _mesa_MultMatrixf( const GLfloat *m ) @@ -351,7 +387,8 @@ _mesa_MultMatrixf( const GLfloat *m ) m[1], m[5], m[9], m[13], m[2], m[6], m[10], m[14], m[3], m[7], m[11], m[15]); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + FLUSH_VERTICES(ctx, 0); _math_matrix_mul_floats( ctx->CurrentStack->Top, m ); ctx->NewState |= ctx->CurrentStack->DirtyFlag; } @@ -369,13 +406,14 @@ _mesa_MultMatrixf( const GLfloat *m ) * * Flushes the vertices and calls _math_matrix_rotate() with the top-most * matrix in the current stack and the given parameters. Marks - * __GLcontextRec::NewState with the dirty stack flag. + * __struct gl_contextRec::NewState with the dirty stack flag. */ void GLAPIENTRY _mesa_Rotatef( GLfloat angle, GLfloat x, GLfloat y, GLfloat z ) { GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + FLUSH_VERTICES(ctx, 0); if (angle != 0.0F) { _math_matrix_rotate( ctx->CurrentStack->Top, angle, x, y, z); ctx->NewState |= ctx->CurrentStack->DirtyFlag; @@ -394,20 +432,21 @@ _mesa_Rotatef( GLfloat angle, GLfloat x, GLfloat y, GLfloat z ) * * Flushes the vertices and calls _math_matrix_scale() with the top-most * matrix in the current stack and the given parameters. Marks - * __GLcontextRec::NewState with the dirty stack flag. + * __struct gl_contextRec::NewState with the dirty stack flag. */ void GLAPIENTRY _mesa_Scalef( GLfloat x, GLfloat y, GLfloat z ) { GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + FLUSH_VERTICES(ctx, 0); _math_matrix_scale( ctx->CurrentStack->Top, x, y, z); ctx->NewState |= ctx->CurrentStack->DirtyFlag; } /** - * 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. @@ -417,19 +456,19 @@ _mesa_Scalef( GLfloat x, GLfloat y, GLfloat z ) * * Flushes the vertices and calls _math_matrix_translate() with the top-most * matrix in the current stack and the given parameters. Marks - * __GLcontextRec::NewState with the dirty stack flag. + * __struct gl_contextRec::NewState with the dirty stack flag. */ void GLAPIENTRY _mesa_Translatef( GLfloat x, GLfloat y, GLfloat z ) { GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + FLUSH_VERTICES(ctx, 0); _math_matrix_translate( ctx->CurrentStack->Top, x, y, z); ctx->NewState |= ctx->CurrentStack->DirtyFlag; } -#if _HAVE_FULL_GL void GLAPIENTRY _mesa_LoadMatrixd( const GLdouble *m ) { @@ -472,12 +511,10 @@ _mesa_Translated( GLdouble x, GLdouble y, GLdouble z ) { _mesa_Translatef((GLfloat) x, (GLfloat) y, (GLfloat) z); } -#endif -#if _HAVE_FULL_GL void GLAPIENTRY -_mesa_LoadTransposeMatrixfARB( const GLfloat *m ) +_mesa_LoadTransposeMatrixf( const GLfloat *m ) { GLfloat tm[16]; if (!m) return; @@ -487,7 +524,7 @@ _mesa_LoadTransposeMatrixfARB( const GLfloat *m ) void GLAPIENTRY -_mesa_LoadTransposeMatrixdARB( const GLdouble *m ) +_mesa_LoadTransposeMatrixd( const GLdouble *m ) { GLfloat tm[16]; if (!m) return; @@ -497,7 +534,7 @@ _mesa_LoadTransposeMatrixdARB( const GLdouble *m ) void GLAPIENTRY -_mesa_MultTransposeMatrixfARB( const GLfloat *m ) +_mesa_MultTransposeMatrixf( const GLfloat *m ) { GLfloat tm[16]; if (!m) return; @@ -507,159 +544,13 @@ _mesa_MultTransposeMatrixfARB( const GLfloat *m ) void GLAPIENTRY -_mesa_MultTransposeMatrixdARB( const GLdouble *m ) +_mesa_MultTransposeMatrixd( const GLdouble *m ) { GLfloat tm[16]; if (!m) return; _math_transposefd(tm, m); _mesa_MultMatrixf(tm); } -#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 GLAPIENTRY -_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 GLAPIENTRY -_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 @@ -676,31 +567,29 @@ _mesa_DepthRange( GLclampd nearval, GLclampd farval ) * Calls _math_matrix_analyse() with the top-matrix of the projection matrix * stack, and recomputes user clip positions if necessary. * - * \note This routine references __GLcontextRec::Tranform attribute values to - * compute userclip positions in clip space, but is only called on + * \note This routine references __struct gl_contextRec::Tranform attribute + * values to compute userclip positions in clip space, but is only called on * _NEW_PROJECTION. The _mesa_ClipPlane() function keeps these values up to - * date across changes to the __GLcontextRec::Transform attributes. + * date across changes to the __struct gl_contextRec::Transform attributes. */ static void -update_projection( GLcontext *ctx ) +update_projection( struct gl_context *ctx ) { + GLbitfield mask; + _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); -#if FEATURE_userclip /* Recompute clip plane positions in clipspace. This is also done * in _mesa_ClipPlane(). */ - if (ctx->Transform.ClipPlanesEnabled) { - GLuint p; - for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { - if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { - _mesa_transform_vector( ctx->Transform._ClipUserPlane[p], - ctx->Transform.EyeUserPlane[p], - ctx->ProjectionMatrixStack.Top->inv ); - } - } + mask = ctx->Transform.ClipPlanesEnabled; + while (mask) { + const int p = u_bit_scan(&mask); + + _mesa_transform_vector( ctx->Transform._ClipUserPlane[p], + ctx->Transform.EyeUserPlane[p], + ctx->ProjectionMatrixStack.Top->inv ); } -#endif } @@ -710,11 +599,11 @@ update_projection( GLcontext *ctx ) * \param ctx GL context. * * Multiplies the top matrices of the projection and model view stacks into - * __GLcontextRec::_ModelProjectMatrix via _math_matrix_mul_matrix() and - * analyzes the resulting matrix via _math_matrix_analyse(). + * __struct gl_contextRec::_ModelProjectMatrix via _math_matrix_mul_matrix() + * and analyzes the resulting matrix via _math_matrix_analyse(). */ static void -calculate_model_project_matrix( GLcontext *ctx ) +calculate_model_project_matrix( struct gl_context *ctx ) { _math_matrix_mul_matrix( &ctx->_ModelProjectMatrix, ctx->ProjectionMatrixStack.Top, @@ -735,7 +624,7 @@ calculate_model_project_matrix( GLcontext *ctx ) * calculate_model_project_matrix() to recalculate the modelview-projection * matrix. */ -void _mesa_update_modelview_project( GLcontext *ctx, GLuint new_state ) +void _mesa_update_modelview_project( struct gl_context *ctx, GLuint new_state ) { if (new_state & _NEW_MODELVIEW) _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); @@ -743,7 +632,7 @@ void _mesa_update_modelview_project( GLcontext *ctx, GLuint new_state ) if (new_state & _NEW_PROJECTION) update_projection( ctx ); - /* Keep ModelviewProject uptodate always to allow tnl + /* Keep ModelviewProject up to date always to allow tnl * implementations that go model->clip even when eye is required. */ calculate_model_project_matrix(ctx); @@ -765,11 +654,10 @@ void _mesa_update_modelview_project( GLcontext *ctx, GLuint new_state ) * \param dirtyFlag dirty flag. * * Allocates an array of \p maxDepth elements for the matrix stack and calls - * _math_matrix_ctr() and _math_matrix_alloc_inv() for each element to - * initialize it. + * _math_matrix_ctr() for each element to 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; @@ -777,11 +665,11 @@ init_matrix_stack( struct matrix_stack *stack, stack->Depth = 0; stack->MaxDepth = maxDepth; stack->DirtyFlag = dirtyFlag; - /* The stack */ - stack->Stack = (GLmatrix *) CALLOC(maxDepth * sizeof(GLmatrix)); - for (i = 0; i < maxDepth; i++) { + /* The stack will be dynamically resized at glPushMatrix() time */ + stack->Stack = calloc(1, sizeof(GLmatrix)); + stack->StackSize = 1; + for (i = 0; i < stack->StackSize; i++) { _math_matrix_ctr(&stack->Stack[i]); - _math_matrix_alloc_inv(&stack->Stack[i]); } stack->Top = stack->Stack; } @@ -795,14 +683,15 @@ 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++) { + for (i = 0; i < stack->StackSize; i++) { _math_matrix_dtr(&stack->Stack[i]); } - FREE(stack->Stack); + free(stack->Stack); stack->Stack = stack->Top = NULL; + stack->StackSize = 0; } /*@}*/ @@ -821,22 +710,20 @@ free_matrix_stack( struct matrix_stack *stack ) * Initializes each of the matrix stacks and the combined modelview-projection * matrix. */ -void _mesa_init_matrix( GLcontext * ctx ) +void _mesa_init_matrix( struct gl_context * ctx ) { - GLint i; + GLuint i; /* Initialize matrix stacks */ init_matrix_stack(&ctx->ModelviewMatrixStack, MAX_MODELVIEW_STACK_DEPTH, _NEW_MODELVIEW); init_matrix_stack(&ctx->ProjectionMatrixStack, MAX_PROJECTION_STACK_DEPTH, _NEW_PROJECTION); - init_matrix_stack(&ctx->ColorMatrixStack, MAX_COLOR_STACK_DEPTH, - _NEW_COLOR_MATRIX); - for (i = 0; i < MAX_TEXTURE_UNITS; i++) + for (i = 0; i < ARRAY_SIZE(ctx->TextureMatrixStack); i++) init_matrix_stack(&ctx->TextureMatrixStack[i], MAX_TEXTURE_STACK_DEPTH, _NEW_TEXTURE_MATRIX); - for (i = 0; i < MAX_PROGRAM_MATRICES; i++) - init_matrix_stack(&ctx->ProgramMatrixStack[i], + for (i = 0; i < ARRAY_SIZE(ctx->ProgramMatrixStack); i++) + init_matrix_stack(&ctx->ProgramMatrixStack[i], MAX_PROGRAM_MATRIX_STACK_DEPTH, _NEW_TRACK_MATRIX); ctx->CurrentStack = &ctx->ModelviewMatrixStack; @@ -853,16 +740,15 @@ void _mesa_init_matrix( GLcontext * ctx ) * Frees each of the matrix stacks and the combined modelview-projection * matrix. */ -void _mesa_free_matrix_data( GLcontext *ctx ) +void _mesa_free_matrix_data( struct gl_context *ctx ) { - GLint i; + GLuint i; free_matrix_stack(&ctx->ModelviewMatrixStack); free_matrix_stack(&ctx->ProjectionMatrixStack); - free_matrix_stack(&ctx->ColorMatrixStack); - for (i = 0; i < MAX_TEXTURE_UNITS; i++) + for (i = 0; i < ARRAY_SIZE(ctx->TextureMatrixStack); i++) free_matrix_stack(&ctx->TextureMatrixStack[i]); - for (i = 0; i < MAX_PROGRAM_MATRICES; i++) + for (i = 0; i < ARRAY_SIZE(ctx->ProgramMatrixStack); i++) free_matrix_stack(&ctx->ProgramMatrixStack[i]); /* combined Modelview*Projection matrix */ _math_matrix_dtr( &ctx->_ModelProjectMatrix ); @@ -877,62 +763,20 @@ void _mesa_free_matrix_data( GLcontext *ctx ) * * \todo Move this to a new file with other 'transform' routines. */ -void _mesa_init_transform( GLcontext *ctx ) +void _mesa_init_transform( struct gl_context *ctx ) { - GLint i; + GLuint i; /* Transformation group */ ctx->Transform.MatrixMode = GL_MODELVIEW; ctx->Transform.Normalize = GL_FALSE; ctx->Transform.RescaleNormals = GL_FALSE; ctx->Transform.RasterPositionUnclipped = GL_FALSE; - for (i=0;iConst.MaxClipPlanes;i++) { 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; -} - - -/** - * 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); -} - /*@}*/