/*
* Mesa 3-D graphics library
- * Version: 7.5
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
#include "matrix.h"
#include "mtypes.h"
#include "math/m_matrix.h"
+#include "util/bitscan.h"
/**
if (ctx->Transform.MatrixMode == mode && mode != GL_TEXTURE)
return;
- FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
switch (mode) {
case GL_MODELVIEW:
return;
}
#endif
- ASSERT(ctx->Texture.CurrentUnit < Elements(ctx->TextureMatrixStack));
+ assert(ctx->Texture.CurrentUnit < ARRAY_SIZE(ctx->TextureMatrixStack));
ctx->CurrentStack = &ctx->TextureMatrixStack[ctx->Texture.CurrentUnit];
break;
case GL_MATRIX0_ARB:
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) {
if (ctx->Transform.MatrixMode == GL_TEXTURE) {
}
else {
_mesa_error(ctx, GL_STACK_OVERFLOW, "glPushMatrix(mode=%s)",
- _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode));
+ _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++;
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) {
if (ctx->Transform.MatrixMode == GL_TEXTURE) {
}
else {
_mesa_error(ctx, GL_STACK_UNDERFLOW, "glPopMatrix(mode=%s)",
- _mesa_lookup_enum_by_nr(ctx->Transform.MatrixMode));
+ _mesa_enum_to_string(ctx->Transform.MatrixMode));
}
return;
}
m[2], m[6], m[10], m[14],
m[3], m[7], m[11], m[15]);
- FLUSH_VERTICES(ctx, 0);
- _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;
+ }
}
static void
update_projection( struct gl_context *ctx )
{
+ GLbitfield mask;
+
_math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
/* 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 );
}
}
*/
void _mesa_update_modelview_project( struct gl_context *ctx, GLuint new_state )
{
- if (new_state & _NEW_MODELVIEW) {
+ if (new_state & _NEW_MODELVIEW)
_math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
-
- /* Bring cull position up to date.
- */
- TRANSFORM_POINT3( ctx->Transform.CullObjPos,
- ctx->ModelviewMatrixStack.Top->inv,
- ctx->Transform.CullEyePos );
- }
-
if (new_state & _NEW_PROJECTION)
update_projection( ctx );
stack->Depth = 0;
stack->MaxDepth = maxDepth;
stack->DirtyFlag = dirtyFlag;
- /* The stack */
- stack->Stack = 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]);
}
stack->Top = 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);
stack->Stack = stack->Top = NULL;
+ stack->StackSize = 0;
}
/*@}*/
*/
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);
- for (i = 0; i < Elements(ctx->TextureMatrixStack); 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 < Elements(ctx->ProgramMatrixStack); 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;
*/
void _mesa_free_matrix_data( struct gl_context *ctx )
{
- GLint i;
+ GLuint i;
free_matrix_stack(&ctx->ModelviewMatrixStack);
free_matrix_stack(&ctx->ProjectionMatrixStack);
- for (i = 0; i < Elements(ctx->TextureMatrixStack); i++)
+ for (i = 0; i < ARRAY_SIZE(ctx->TextureMatrixStack); i++)
free_matrix_stack(&ctx->TextureMatrixStack[i]);
- for (i = 0; i < Elements(ctx->ProgramMatrixStack); 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 );
ASSIGN_4V( ctx->Transform.EyeUserPlane[i], 0.0, 0.0, 0.0, 0.0 );
}
ctx->Transform.ClipPlanesEnabled = 0;
-
- 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 );
}
projects / mesa.git / blobdiff