diff options
Diffstat (limited to 'hw/xgl/xglgeometry.c')
| -rw-r--r-- | hw/xgl/xglgeometry.c | 723 |
1 files changed, 0 insertions, 723 deletions
diff --git a/hw/xgl/xglgeometry.c b/hw/xgl/xglgeometry.c deleted file mode 100644 index 7c46e31ca..000000000 --- a/hw/xgl/xglgeometry.c +++ /dev/null @@ -1,723 +0,0 @@ -/* - * Copyright © 2004 David Reveman - * - * Permission to use, copy, modify, distribute, and sell this software - * and its documentation for any purpose is hereby granted without - * fee, provided that the above copyright notice appear in all copies - * and that both that copyright notice and this permission notice - * appear in supporting documentation, and that the name of - * David Reveman not be used in advertising or publicity pertaining to - * distribution of the software without specific, written prior permission. - * David Reveman makes no representations about the suitability of this - * software for any purpose. It is provided "as is" without express or - * implied warranty. - * - * DAVID REVEMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN - * NO EVENT SHALL DAVID REVEMAN BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS - * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, - * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION - * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * Author: David Reveman <davidr@novell.com> - */ - -#include "xgl.h" -#include "fontstruct.h" -#include "dixfontstr.h" - -xglDataTypeInfoRec xglGeometryDataTypes[2] = { - { GLITZ_DATA_TYPE_SHORT, sizeof (glitz_short_t) }, - { GLITZ_DATA_TYPE_FLOAT, sizeof (glitz_float_t) } -}; - -glitz_buffer_hint_t usageTypes[] = { - GLITZ_BUFFER_HINT_STREAM_DRAW, - GLITZ_BUFFER_HINT_STATIC_DRAW, - GLITZ_BUFFER_HINT_DYNAMIC_DRAW -}; - -void -xglGeometryResize (ScreenPtr pScreen, - xglGeometryPtr pGeometry, - int size) -{ - XGL_SCREEN_PRIV (pScreen); - - if (size == pGeometry->size) - return; - - if (pGeometry->broken) - return; - - if (pGeometry->usage == GEOMETRY_USAGE_SYSMEM) - { - pGeometry->data = xrealloc (pGeometry->data, size); - - if (pGeometry->buffer) - glitz_buffer_destroy (pGeometry->buffer); - - pGeometry->buffer = NULL; - - if (pGeometry->data) - { - pGeometry->buffer = glitz_buffer_create_for_data (pGeometry->data); - if (!pGeometry->buffer) - { - pGeometry->broken = TRUE; - return; - } - } - else if (size) - { - pGeometry->broken = TRUE; - return; - } - } - else - { - glitz_buffer_t *newBuffer; - if (size) - { - newBuffer = - glitz_vertex_buffer_create (pScreenPriv->drawable, NULL, size, - usageTypes[pGeometry->usage]); - if (!newBuffer) - { - pGeometry->broken = TRUE; - return; - } - } else - newBuffer = NULL; - - if (pGeometry->buffer && newBuffer) - { - void *oldData, *newData; - - oldData = glitz_buffer_map (pGeometry->buffer, - GLITZ_BUFFER_ACCESS_READ_ONLY); - newData = glitz_buffer_map (newBuffer, - GLITZ_BUFFER_ACCESS_WRITE_ONLY); - - if (oldData && newData) - memcpy (newData, oldData, MIN (size, pGeometry->size)); - - glitz_buffer_unmap (pGeometry->buffer); - glitz_buffer_unmap (newBuffer); - - glitz_buffer_destroy (pGeometry->buffer); - } - pGeometry->buffer = newBuffer; - } - - pGeometry->size = size; - - if (pGeometry->endOffset > size) - pGeometry->endOffset = size; -} - -#define MAP_GEOMETRY(pScreen, pGeometry, offset, units, ptr, _size) \ - if ((pGeometry)->broken) \ - return; \ - (_size) = (units) * xglGeometryDataTypes[(pGeometry)->dataType].size; \ - if (((pGeometry)->size - (offset)) < (_size)) \ - { \ - xglGeometryResize (pScreen, pGeometry, \ - (pGeometry)->endOffset + (_size) + 500); \ - if ((pGeometry)->broken) \ - return; \ - } \ - (ptr) = glitz_buffer_map ((pGeometry)->buffer, \ - GLITZ_BUFFER_ACCESS_WRITE_ONLY); \ - if (!(ptr)) \ - { \ - (pGeometry)->broken = TRUE; \ - return; \ - } \ - (ptr) += (offset) - -#define UNMAP_GEOMETRY(pGeometry, offset, _size) \ - if (glitz_buffer_unmap ((pGeometry)->buffer)) \ - { \ - (pGeometry)->broken = TRUE; \ - return; \ - } \ - if (((offset) + (_size)) > (pGeometry)->endOffset) \ - { \ - (pGeometry)->endOffset = (offset) + (_size); \ - (pGeometry)->count = (pGeometry)->endOffset / \ - (2 * xglGeometryDataTypes[(pGeometry)->dataType].size); \ - } - -/* - * Adds a number of boxes as GL_QUAD primitives - */ -void -xglGeometryAddBox (ScreenPtr pScreen, - xglGeometryPtr pGeometry, - BoxPtr pBox, - int nBox, - int offset) -{ - int size; - char *ptr; - - if (nBox < 1) - return; - - MAP_GEOMETRY (pScreen, pGeometry, offset, nBox * 8, ptr, size); - - switch (pGeometry->dataType) { - case GEOMETRY_DATA_TYPE_SHORT: - { - glitz_short_t *data = (glitz_short_t *) ptr; - - while (nBox--) - { - *data++ = (glitz_short_t) pBox->x1; - *data++ = (glitz_short_t) pBox->y1; - *data++ = (glitz_short_t) pBox->x2; - *data++ = (glitz_short_t) pBox->y1; - *data++ = (glitz_short_t) pBox->x2; - *data++ = (glitz_short_t) pBox->y2; - *data++ = (glitz_short_t) pBox->x1; - *data++ = (glitz_short_t) pBox->y2; - - pBox++; - } - } break; - case GEOMETRY_DATA_TYPE_FLOAT: - { - glitz_float_t *data = (glitz_float_t *) ptr; - - while (nBox--) - { - *data++ = (glitz_float_t) pBox->x1; - *data++ = (glitz_float_t) pBox->y1; - *data++ = (glitz_float_t) pBox->x2; - *data++ = (glitz_float_t) pBox->y1; - *data++ = (glitz_float_t) pBox->x2; - *data++ = (glitz_float_t) pBox->y2; - *data++ = (glitz_float_t) pBox->x1; - *data++ = (glitz_float_t) pBox->y2; - - pBox++; - } - } break; - } - - UNMAP_GEOMETRY (pGeometry, offset, size); -} - -/* - * Adds a number of spans as GL_LINE primitives - */ -void -xglGeometryAddSpan (ScreenPtr pScreen, - xglGeometryPtr pGeometry, - DDXPointPtr ppt, - int *pwidth, - int n, - int offset) -{ - int size; - char *ptr; - - if (n < 1) - return; - - MAP_GEOMETRY (pScreen, pGeometry, offset, n * 4, ptr, size); - - switch (pGeometry->dataType) { - case GEOMETRY_DATA_TYPE_SHORT: - { - glitz_short_t *data = (glitz_short_t *) ptr; - - while (n--) - { - *data++ = (glitz_short_t) ppt->x; - *data++ = (glitz_short_t) ppt->y; - *data++ = (glitz_short_t) (ppt->x + *pwidth); - *data++ = (glitz_short_t) ppt->y; - - ppt++; - pwidth++; - } - } break; - case GEOMETRY_DATA_TYPE_FLOAT: - { - glitz_float_t *data = (glitz_float_t *) ptr; - - while (n--) - { - *data++ = (glitz_float_t) ppt->x; - *data++ = (glitz_float_t) ppt->y; - *data++ = (glitz_float_t) (ppt->x + *pwidth); - *data++ = (glitz_float_t) ppt->y; - - ppt++; - pwidth++; - } - } break; - } - - UNMAP_GEOMETRY (pGeometry, offset, size); -} - -/* - * This macro is needed for end pixels to be rasterized correctly using - * OpenGL as OpenGL line segments are half-opened. - */ -#define ADJUST_END_POINT(start, end, isPoint) \ - (((end) > (start)) ? (end) + 1: \ - ((end) < (start)) ? (end) - 1: \ - (isPoint) ? (end) + 1: \ - (end)) - -/* - * Adds a number of connected lines as GL_LINE_STRIP primitives - */ -void -xglGeometryAddLine (ScreenPtr pScreen, - xglGeometryPtr pGeometry, - int loop, - int mode, - int npt, - DDXPointPtr ppt, - int offset) -{ - DDXPointRec pt; - int size; - char *ptr; - - if (npt < 2) - return; - - MAP_GEOMETRY (pScreen, pGeometry, offset, npt * 2, ptr, size); - - pt.x = 0; - pt.y = 0; - - switch (pGeometry->dataType) { - case GEOMETRY_DATA_TYPE_SHORT: - { - glitz_short_t *data = (glitz_short_t *) ptr; - - while (npt--) - { - if (mode == CoordModePrevious) - { - pt.x += ppt->x; - pt.y += ppt->y; - } - else - { - pt.x = ppt->x; - pt.y = ppt->y; - } - - if (npt || loop) - { - *data++ = (glitz_short_t) pt.x; - *data++ = (glitz_short_t) pt.y; - } - else - { - ppt--; - *data++ = (glitz_short_t) - ADJUST_END_POINT (ppt->x, pt.x, ppt->y == pt.y); - *data++ = (glitz_short_t) ADJUST_END_POINT (ppt->y, pt.y, 0); - } - - ppt++; - } - } break; - case GEOMETRY_DATA_TYPE_FLOAT: - { - glitz_float_t *data = (glitz_float_t *) ptr; - - while (npt--) - { - if (mode == CoordModePrevious) - { - pt.x += ppt->x; - pt.y += ppt->y; - } - else - { - pt.x = ppt->x; - pt.y = ppt->y; - } - - if (npt || loop) - { - *data++ = (glitz_float_t) pt.x; - *data++ = (glitz_float_t) pt.y; - } - else - { - ppt--; - *data++ = (glitz_float_t) - ADJUST_END_POINT (ppt->x, pt.x, ppt->y == pt.y); - *data++ = (glitz_float_t) ADJUST_END_POINT (ppt->y, pt.y, 0); - } - - ppt++; - } - } break; - } - - UNMAP_GEOMETRY (pGeometry, offset, size); -} - -/* - * Adds a number of line segments as GL_LINE primitives - */ -void -xglGeometryAddSegment (ScreenPtr pScreen, - xglGeometryPtr pGeometry, - int nsegInit, - xSegment *pSegInit, - int offset) -{ - int size; - char *ptr; - - if (nsegInit < 1) - return; - - MAP_GEOMETRY (pScreen, pGeometry, offset, nsegInit * 4, ptr, size); - - switch (pGeometry->dataType) { - case GEOMETRY_DATA_TYPE_SHORT: - { - glitz_short_t *data = (glitz_short_t *) ptr; - - while (nsegInit--) - { - *data++ = (glitz_short_t) pSegInit->x1; - *data++ = (glitz_short_t) pSegInit->y1; - *data++ = (glitz_short_t) - ADJUST_END_POINT (pSegInit->x1, pSegInit->x2, - pSegInit->y1 == pSegInit->y2); - *data++ = (glitz_short_t) - ADJUST_END_POINT (pSegInit->y1, pSegInit->y2, 0); - - pSegInit++; - } - } break; - case GEOMETRY_DATA_TYPE_FLOAT: - { - glitz_float_t *data = (glitz_float_t *) ptr; - - while (nsegInit--) - { - *data++ = (glitz_float_t) pSegInit->x1; - *data++ = (glitz_float_t) pSegInit->y1; - *data++ = (glitz_float_t) - ADJUST_END_POINT (pSegInit->x1, pSegInit->x2, - pSegInit->y1 == pSegInit->y2); - *data++ = (glitz_float_t) - ADJUST_END_POINT (pSegInit->y1, pSegInit->y2, 0); - - pSegInit++; - } - } break; - } - - UNMAP_GEOMETRY (pGeometry, offset, size); -} - -void -xglGeometryForGlyph (ScreenPtr pScreen, - xglGeometryPtr pGeometry, - unsigned int nGlyph, - CharInfoPtr *ppciInit, - pointer pglyphBase) -{ - CharInfoPtr *ppci; - CharInfoPtr pci; - unsigned char *glyphbase = (pointer) ~0; - unsigned char *pglyph; - int x = 0; - int gx, gy; - int gWidth, gHeight; - int n, lastX = 0, lastY = 0; - glitz_multi_array_t *array; - glitz_buffer_t *buffer; - - ppci = ppciInit; - n = nGlyph; - - while (n--) - { - pglyph = FONTGLYPHBITS (pglyphBase, *ppci++); - if (pglyph < glyphbase) - glyphbase = pglyph; - } - - buffer = glitz_buffer_create_for_data (glyphbase); - if (!buffer) - { - pGeometry->broken = TRUE; - return; - } - - GEOMETRY_SET_BUFFER (pGeometry, buffer); - - array = glitz_multi_array_create (nGlyph); - if (!array) - { - pGeometry->broken = TRUE; - return; - } - - GEOMETRY_SET_MULTI_ARRAY (pGeometry, array); - - ppci = ppciInit; - while (nGlyph--) - { - pci = *ppci++; - pglyph = FONTGLYPHBITS (pglyphBase, pci); - gWidth = GLYPHWIDTHPIXELS (pci); - gHeight = GLYPHHEIGHTPIXELS (pci); - - if (gWidth && gHeight) - { - gx = x + pci->metrics.leftSideBearing; - gy = -pci->metrics.ascent; - - glitz_multi_array_add (array, - (pglyph - glyphbase) * 8, - gWidth, gHeight, - (gx - lastX) << 16, (gy - lastY) << 16); - lastX = gx; - lastY = gy; - } - x += pci->metrics.characterWidth; - } - - glitz_buffer_destroy (buffer); - glitz_multi_array_destroy (array); -} - -#define FIXED_LINE_X_TO_FLOAT(line, v) \ - (((glitz_float_t) \ - ((line).p1.x + (xFixed_16_16) \ - (((xFixed_32_32) ((v) - (line).p1.y) * \ - ((line).p2.x - (line).p1.x)) / \ - ((line).p2.y - (line).p1.y)))) / 65536) - -#define FIXED_LINE_X_CEIL_TO_FLOAT(line, v) \ - (((glitz_float_t) \ - ((line).p1.x + (xFixed_16_16) \ - (((((line).p2.y - (line).p1.y) - 1) + \ - ((xFixed_32_32) ((v) - (line).p1.y) * \ - ((line).p2.x - (line).p1.x))) / \ - ((line).p2.y - (line).p1.y)))) / 65536) - -/* - * Adds a number of trapezoids as GL_QUAD primitives - */ -void -xglGeometryAddTrapezoid (ScreenPtr pScreen, - xglGeometryPtr pGeometry, - xTrapezoid *pTrap, - int nTrap, - int offset) -{ - int size; - char *ptr; - - if (nTrap < 1) - return; - - MAP_GEOMETRY (pScreen, pGeometry, offset, nTrap * 8, ptr, size); - - switch (pGeometry->dataType) { - case GEOMETRY_DATA_TYPE_SHORT: - /* not supported */ - pGeometry->broken = TRUE; - break; - case GEOMETRY_DATA_TYPE_FLOAT: - { - glitz_float_t *data = (glitz_float_t *) ptr; - glitz_float_t top, bottom; - - while (nTrap--) - { - top = FIXED_TO_FLOAT (pTrap->top); - bottom = FIXED_TO_FLOAT (pTrap->bottom); - - *data++ = FIXED_LINE_X_TO_FLOAT (pTrap->left, pTrap->top); - *data++ = top; - *data++ = FIXED_LINE_X_CEIL_TO_FLOAT (pTrap->right, pTrap->top); - *data++ = top; - *data++ = FIXED_LINE_X_CEIL_TO_FLOAT (pTrap->right, pTrap->bottom); - *data++ = bottom; - *data++ = FIXED_LINE_X_TO_FLOAT (pTrap->left, pTrap->bottom); - *data++ = bottom; - - pTrap++; - } - } break; - } - - UNMAP_GEOMETRY (pGeometry, offset, size); -} - -/* - * Adds a number of traps as GL_QUAD primitives - */ -void -xglGeometryAddTrap (ScreenPtr pScreen, - xglGeometryPtr pGeometry, - xTrap *pTrap, - int nTrap, - int offset) -{ - int size; - char *ptr; - - if (nTrap < 1) - return; - - MAP_GEOMETRY (pScreen, pGeometry, offset, nTrap * 8, ptr, size); - - switch (pGeometry->dataType) { - case GEOMETRY_DATA_TYPE_SHORT: - /* not supported */ - pGeometry->broken = TRUE; - break; - case GEOMETRY_DATA_TYPE_FLOAT: - { - glitz_float_t *data = (glitz_float_t *) ptr; - glitz_float_t top, bottom; - - while (nTrap--) - { - top = FIXED_TO_FLOAT (pTrap->top.y); - bottom = FIXED_TO_FLOAT (pTrap->bot.y); - - *data++ = FIXED_TO_FLOAT (pTrap->top.l); - *data++ = top; - *data++ = FIXED_TO_FLOAT (pTrap->top.r); - *data++ = top; - *data++ = FIXED_TO_FLOAT (pTrap->bot.r); - *data++ = bottom; - *data++ = FIXED_TO_FLOAT (pTrap->bot.l); - *data++ = bottom; - - pTrap++; - } - } break; - } - - UNMAP_GEOMETRY (pGeometry, offset, size); -} - -/* XXX: scratch geometry size never shrinks, it just gets larger when - required. this is not acceptable. */ -xglGeometryPtr -xglGetScratchGeometryWithSize (ScreenPtr pScreen, - int size) -{ - xglGeometryPtr pGeometry; - - XGL_SCREEN_PRIV (pScreen); - - pGeometry = &pScreenPriv->scratchGeometry; - - if (pGeometry->broken || pGeometry->size < size) - { - GEOMETRY_UNINIT (pGeometry); - GEOMETRY_INIT (pScreen, pGeometry, pGeometry->type, - pScreenPriv->geometryUsage, size); - } - else - { - if (pGeometry->array) - { - glitz_multi_array_destroy (pGeometry->array); - pGeometry->array = NULL; - } - pGeometry->endOffset = 0; - pGeometry->xOff = 0; - pGeometry->yOff = 0; - pGeometry->first = 0; - pGeometry->count = 0; - pGeometry->width = 2; - } - - return pGeometry; -} - -xglGeometryPtr -xglGetScratchVertexGeometryWithType (ScreenPtr pScreen, - int type, - int count) -{ - xglGeometryPtr pGeometry; - int stride; - - stride = 2 * xglGeometryDataTypes[type].size; - - pGeometry = xglGetScratchGeometryWithSize (pScreen, count * stride); - - pGeometry->type = GLITZ_GEOMETRY_TYPE_VERTEX; - pGeometry->dataType = type; - - pGeometry->f.vertex.primitive = GLITZ_PRIMITIVE_QUADS; - pGeometry->f.vertex.type = xglGeometryDataTypes[type].type; - pGeometry->f.vertex.bytes_per_vertex = stride; - pGeometry->f.vertex.attributes = 0; - - return pGeometry; -} - -xglGeometryPtr -xglGetScratchVertexGeometry (ScreenPtr pScreen, - int count) -{ - xglGeometryPtr pGeometry; - int type, stride; - - XGL_SCREEN_PRIV (pScreen); - - type = pScreenPriv->geometryDataType; - stride = 2 * xglGeometryDataTypes[type].size; - - pGeometry = xglGetScratchGeometryWithSize (pScreen, count * stride); - - pGeometry->type = GLITZ_GEOMETRY_TYPE_VERTEX; - pGeometry->dataType = type; - - pGeometry->f.vertex.primitive = GLITZ_PRIMITIVE_QUADS; - pGeometry->f.vertex.type = xglGeometryDataTypes[type].type; - pGeometry->f.vertex.bytes_per_vertex = stride; - pGeometry->f.vertex.attributes = 0; - - return pGeometry; -} - -Bool -xglSetGeometry (xglGeometryPtr pGeometry, - glitz_surface_t *surface) -{ - if (pGeometry->broken) - return FALSE; - - glitz_set_geometry (surface, pGeometry->type, &pGeometry->f, - pGeometry->buffer); - - if (pGeometry->array) - glitz_set_multi_array (surface, pGeometry->array, - pGeometry->xOff, pGeometry->yOff); - else - glitz_set_array (surface, - pGeometry->first, pGeometry->width, pGeometry->count, - pGeometry->xOff, pGeometry->yOff); - - return TRUE; -} |