diff options
Diffstat (limited to 'Build/source/utils/asymptote/tr.cc')
-rw-r--r-- | Build/source/utils/asymptote/tr.cc | 528 |
1 files changed, 264 insertions, 264 deletions
diff --git a/Build/source/utils/asymptote/tr.cc b/Build/source/utils/asymptote/tr.cc index eee9a76c483..1882675cdfa 100644 --- a/Build/source/utils/asymptote/tr.cc +++ b/Build/source/utils/asymptote/tr.cc @@ -70,35 +70,35 @@ using gl::frustum; using gl::ortho; struct _TRctx { - /* Final image parameters */ - GLint ImageWidth, ImageHeight; - GLenum ImageFormat, ImageType; - GLvoid *ImageBuffer; - - /* Tile parameters */ - GLint TileWidth, TileHeight; - GLint TileWidthNB, TileHeightNB; - GLint TileBorder; - GLenum TileFormat, TileType; - GLvoid *TileBuffer; - - /* Projection parameters */ - GLboolean Perspective; - GLdouble Left; - GLdouble Right; - GLdouble Bottom; - GLdouble Top; - GLdouble Near; - GLdouble Far; - - /* Misc */ - TRenum RowOrder; - GLint Rows, Columns; - GLint CurrentTile; - GLint CurrentTileWidth, CurrentTileHeight; - GLint CurrentRow, CurrentColumn; - - GLint ViewportSave[4]; + /* Final image parameters */ + GLint ImageWidth, ImageHeight; + GLenum ImageFormat, ImageType; + GLvoid *ImageBuffer; + + /* Tile parameters */ + GLint TileWidth, TileHeight; + GLint TileWidthNB, TileHeightNB; + GLint TileBorder; + GLenum TileFormat, TileType; + GLvoid *TileBuffer; + + /* Projection parameters */ + GLboolean Perspective; + GLdouble Left; + GLdouble Right; + GLdouble Bottom; + GLdouble Top; + GLdouble Near; + GLdouble Far; + + /* Misc */ + TRenum RowOrder; + GLint Rows, Columns; + GLint CurrentTile; + GLint CurrentTileWidth, CurrentTileHeight; + GLint CurrentRow, CurrentColumn; + + GLint ViewportSave[4]; }; @@ -108,145 +108,145 @@ struct _TRctx { */ static void Setup(TRcontext *tr) { - if (!tr) - return; + if (!tr) + return; - tr->Columns = (tr->ImageWidth + tr->TileWidthNB - 1) / tr->TileWidthNB; - tr->Rows = (tr->ImageHeight + tr->TileHeightNB - 1) / tr->TileHeightNB; - tr->CurrentTile = 0; + tr->Columns = (tr->ImageWidth + tr->TileWidthNB - 1) / tr->TileWidthNB; + tr->Rows = (tr->ImageHeight + tr->TileHeightNB - 1) / tr->TileHeightNB; + tr->CurrentTile = 0; - assert(tr->Columns >= 0); - assert(tr->Rows >= 0); + assert(tr->Columns >= 0); + assert(tr->Rows >= 0); } TRcontext *trNew(void) { - TRcontext *tr = (TRcontext *) calloc(1, sizeof(TRcontext)); - if (tr) { - tr->TileWidth = DEFAULT_TILE_WIDTH; - tr->TileHeight = DEFAULT_TILE_HEIGHT; - tr->TileBorder = DEFAULT_TILE_BORDER; - tr->RowOrder = TR_BOTTOM_TO_TOP; - tr->CurrentTile = -1; - } - return (TRcontext *) tr; + TRcontext *tr = (TRcontext *) calloc(1, sizeof(TRcontext)); + if (tr) { + tr->TileWidth = DEFAULT_TILE_WIDTH; + tr->TileHeight = DEFAULT_TILE_HEIGHT; + tr->TileBorder = DEFAULT_TILE_BORDER; + tr->RowOrder = TR_BOTTOM_TO_TOP; + tr->CurrentTile = -1; + } + return (TRcontext *) tr; } void trDelete(TRcontext *tr) { - if (tr) - free(tr); + if (tr) + free(tr); } void trTileSize(TRcontext *tr, GLint width, GLint height, GLint border) { - if (!tr) - return; - - assert(border >= 0); - assert(width >= 1); - assert(height >= 1); - assert(width >= 2*border); - assert(height >= 2*border); - - tr->TileBorder = border; - tr->TileWidth = width; - tr->TileHeight = height; - tr->TileWidthNB = width - 2 * border; - tr->TileHeightNB = height - 2 * border; - Setup(tr); + if (!tr) + return; + + assert(border >= 0); + assert(width >= 1); + assert(height >= 1); + assert(width >= 2*border); + assert(height >= 2*border); + + tr->TileBorder = border; + tr->TileWidth = width; + tr->TileHeight = height; + tr->TileWidthNB = width - 2 * border; + tr->TileHeightNB = height - 2 * border; + Setup(tr); } void trTileBuffer(TRcontext *tr, GLenum format, GLenum type, GLvoid *image) { - if (!tr) - return; + if (!tr) + return; - tr->TileFormat = format; - tr->TileType = type; - tr->TileBuffer = image; + tr->TileFormat = format; + tr->TileType = type; + tr->TileBuffer = image; } void trImageSize(TRcontext *tr, GLint width, GLint height) { - if (!tr) - return; + if (!tr) + return; - tr->ImageWidth = width; - tr->ImageHeight = height; - Setup(tr); + tr->ImageWidth = width; + tr->ImageHeight = height; + Setup(tr); } void trImageBuffer(TRcontext *tr, GLenum format, GLenum type, GLvoid *image) { - if (!tr) - return; + if (!tr) + return; - tr->ImageFormat = format; - tr->ImageType = type; - tr->ImageBuffer = image; + tr->ImageFormat = format; + tr->ImageType = type; + tr->ImageBuffer = image; } GLint trGet(TRcontext *tr, TRenum param) { - if (!tr) + if (!tr) + return 0; + + switch (param) { + case TR_TILE_WIDTH: + return tr->TileWidth; + case TR_TILE_HEIGHT: + return tr->TileHeight; + case TR_TILE_BORDER: + return tr->TileBorder; + case TR_IMAGE_WIDTH: + return tr->ImageWidth; + case TR_IMAGE_HEIGHT: + return tr->ImageHeight; + case TR_ROWS: + return tr->Rows; + case TR_COLUMNS: + return tr->Columns; + case TR_CURRENT_ROW: + if (tr->CurrentTile<0) + return -1; + else + return tr->CurrentRow; + case TR_CURRENT_COLUMN: + if (tr->CurrentTile<0) + return -1; + else + return tr->CurrentColumn; + case TR_CURRENT_TILE_WIDTH: + return tr->CurrentTileWidth; + case TR_CURRENT_TILE_HEIGHT: + return tr->CurrentTileHeight; + case TR_ROW_ORDER: + return (GLint) tr->RowOrder; + default: return 0; - - switch (param) { - case TR_TILE_WIDTH: - return tr->TileWidth; - case TR_TILE_HEIGHT: - return tr->TileHeight; - case TR_TILE_BORDER: - return tr->TileBorder; - case TR_IMAGE_WIDTH: - return tr->ImageWidth; - case TR_IMAGE_HEIGHT: - return tr->ImageHeight; - case TR_ROWS: - return tr->Rows; - case TR_COLUMNS: - return tr->Columns; - case TR_CURRENT_ROW: - if (tr->CurrentTile<0) - return -1; - else - return tr->CurrentRow; - case TR_CURRENT_COLUMN: - if (tr->CurrentTile<0) - return -1; - else - return tr->CurrentColumn; - case TR_CURRENT_TILE_WIDTH: - return tr->CurrentTileWidth; - case TR_CURRENT_TILE_HEIGHT: - return tr->CurrentTileHeight; - case TR_ROW_ORDER: - return (GLint) tr->RowOrder; - default: - return 0; - } + } } void trRowOrder(TRcontext *tr, TRenum order) { - if (!tr) - return; + if (!tr) + return; - if (order==TR_TOP_TO_BOTTOM || order==TR_BOTTOM_TO_TOP) - tr->RowOrder = order; + if (order==TR_TOP_TO_BOTTOM || order==TR_BOTTOM_TO_TOP) + tr->RowOrder = order; } @@ -255,16 +255,16 @@ void trOrtho(TRcontext *tr, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar) { - if (!tr) - return; - - tr->Perspective = GL_FALSE; - tr->Left = left; - tr->Right = right; - tr->Bottom = bottom; - tr->Top = top; - tr->Near = zNear; - tr->Far = zFar; + if (!tr) + return; + + tr->Perspective = GL_FALSE; + tr->Left = left; + tr->Right = right; + tr->Bottom = bottom; + tr->Top = top; + tr->Near = zNear; + tr->Far = zFar; } @@ -273,16 +273,16 @@ void trFrustum(TRcontext *tr, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar) { - if (!tr) - return; - - tr->Perspective = GL_TRUE; - tr->Left = left; - tr->Right = right; - tr->Bottom = bottom; - tr->Top = top; - tr->Near = zNear; - tr->Far = zFar; + if (!tr) + return; + + tr->Perspective = GL_TRUE; + tr->Left = left; + tr->Right = right; + tr->Bottom = bottom; + tr->Top = top; + tr->Near = zNear; + tr->Far = zFar; } @@ -290,144 +290,144 @@ void trPerspective(TRcontext *tr, GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar ) { - GLdouble xmin, xmax, ymin, ymax; - static const double halfradians=acos(-1.0)/360.0; - ymax = zNear * tan(fovy * halfradians); - ymin = -ymax; - xmin = ymin * aspect; - xmax = ymax * aspect; - trFrustum(tr, xmin, xmax, ymin, ymax, zNear, zFar); + GLdouble xmin, xmax, ymin, ymax; + static const double halfradians=acos(-1.0)/360.0; + ymax = zNear * tan(fovy * halfradians); + ymin = -ymax; + xmin = ymin * aspect; + xmax = ymax * aspect; + trFrustum(tr, xmin, xmax, ymin, ymax, zNear, zFar); } void trBeginTile(TRcontext *tr) { - GLint tileWidth, tileHeight, border; - GLdouble left, right, bottom, top; - - if (!tr) - return; - - if (tr->CurrentTile <= 0) { - Setup(tr); - /* Save user's viewport, will be restored after last tile rendered */ - glGetIntegerv(GL_VIEWPORT, tr->ViewportSave); - } - - /* which tile (by row and column) we're about to render */ - if (tr->RowOrder==TR_BOTTOM_TO_TOP) { - tr->CurrentRow = tr->CurrentTile / tr->Columns; - tr->CurrentColumn = tr->CurrentTile % tr->Columns; - } - else if (tr->RowOrder==TR_TOP_TO_BOTTOM) { - tr->CurrentRow = tr->Rows - (tr->CurrentTile / tr->Columns) - 1; - tr->CurrentColumn = tr->CurrentTile % tr->Columns; - } - else { - /* This should never happen */ - abort(); - } - assert(tr->CurrentRow < tr->Rows); - assert(tr->CurrentColumn < tr->Columns); - - border = tr->TileBorder; - - /* Compute actual size of this tile with border */ - if (tr->CurrentRow < tr->Rows-1) - tileHeight = tr->TileHeight; - else - tileHeight = tr->ImageHeight - (tr->Rows-1) * (tr->TileHeightNB) + 2 * border; - - if (tr->CurrentColumn < tr->Columns-1) - tileWidth = tr->TileWidth; - else - tileWidth = tr->ImageWidth - (tr->Columns-1) * (tr->TileWidthNB) + 2 * border; - - /* Save tile size, with border */ - tr->CurrentTileWidth = tileWidth; - tr->CurrentTileHeight = tileHeight; - - glViewport(0, 0, tileWidth, tileHeight); /* tile size including border */ - - /* compute projection parameters */ - left = tr->Left + (tr->Right - tr->Left) - * (tr->CurrentColumn * tr->TileWidthNB - border) / tr->ImageWidth; - right = left + (tr->Right - tr->Left) * tileWidth / tr->ImageWidth; - bottom = tr->Bottom + (tr->Top - tr->Bottom) - * (tr->CurrentRow * tr->TileHeightNB - border) / tr->ImageHeight; - top = bottom + (tr->Top - tr->Bottom) * tileHeight / tr->ImageHeight; - - if (tr->Perspective) - frustum(left, right, bottom, top, tr->Near, tr->Far); - else - ortho(left, right, bottom, top, tr->Near, tr->Far); + GLint tileWidth, tileHeight, border; + GLdouble left, right, bottom, top; + + if (!tr) + return; + + if (tr->CurrentTile <= 0) { + Setup(tr); + /* Save user's viewport, will be restored after last tile rendered */ + glGetIntegerv(GL_VIEWPORT, tr->ViewportSave); + } + + /* which tile (by row and column) we're about to render */ + if (tr->RowOrder==TR_BOTTOM_TO_TOP) { + tr->CurrentRow = tr->CurrentTile / tr->Columns; + tr->CurrentColumn = tr->CurrentTile % tr->Columns; + } + else if (tr->RowOrder==TR_TOP_TO_BOTTOM) { + tr->CurrentRow = tr->Rows - (tr->CurrentTile / tr->Columns) - 1; + tr->CurrentColumn = tr->CurrentTile % tr->Columns; + } + else { + /* This should never happen */ + abort(); + } + assert(tr->CurrentRow < tr->Rows); + assert(tr->CurrentColumn < tr->Columns); + + border = tr->TileBorder; + + /* Compute actual size of this tile with border */ + if (tr->CurrentRow < tr->Rows-1) + tileHeight = tr->TileHeight; + else + tileHeight = tr->ImageHeight - (tr->Rows-1) * (tr->TileHeightNB) + 2 * border; + + if (tr->CurrentColumn < tr->Columns-1) + tileWidth = tr->TileWidth; + else + tileWidth = tr->ImageWidth - (tr->Columns-1) * (tr->TileWidthNB) + 2 * border; + + /* Save tile size, with border */ + tr->CurrentTileWidth = tileWidth; + tr->CurrentTileHeight = tileHeight; + + glViewport(0, 0, tileWidth, tileHeight); /* tile size including border */ + + /* compute projection parameters */ + left = tr->Left + (tr->Right - tr->Left) + * (tr->CurrentColumn * tr->TileWidthNB - border) / tr->ImageWidth; + right = left + (tr->Right - tr->Left) * tileWidth / tr->ImageWidth; + bottom = tr->Bottom + (tr->Top - tr->Bottom) + * (tr->CurrentRow * tr->TileHeightNB - border) / tr->ImageHeight; + top = bottom + (tr->Top - tr->Bottom) * tileHeight / tr->ImageHeight; + + if (tr->Perspective) + frustum(left, right, bottom, top, tr->Near, tr->Far); + else + ortho(left, right, bottom, top, tr->Near, tr->Far); } int trEndTile(TRcontext *tr) { - GLint prevRowLength, prevSkipRows, prevSkipPixels; - - if (!tr) - return 0; - - assert(tr->CurrentTile>=0); - - /* be sure OpenGL rendering is finished */ - glFlush(); - - /* save current glPixelStore values */ - glGetIntegerv(GL_PACK_ROW_LENGTH, &prevRowLength); - glGetIntegerv(GL_PACK_SKIP_ROWS, &prevSkipRows); - glGetIntegerv(GL_PACK_SKIP_PIXELS, &prevSkipPixels); - /*glGetIntegerv(GL_PACK_ALIGNMENT, &prevAlignment);*/ - - if (tr->TileBuffer) { - GLint srcX = tr->TileBorder; - GLint srcY = tr->TileBorder; - GLint srcWidth = tr->TileWidthNB; - GLint srcHeight = tr->TileHeightNB; - glReadPixels(srcX, srcY, srcWidth, srcHeight, - tr->TileFormat, tr->TileType, tr->TileBuffer); - } - - if (tr->ImageBuffer) { - GLint srcX = tr->TileBorder; - GLint srcY = tr->TileBorder; - GLint srcWidth = tr->CurrentTileWidth - 2 * tr->TileBorder; - GLint srcHeight = tr->CurrentTileHeight - 2 * tr->TileBorder; - GLint destX = tr->TileWidthNB * tr->CurrentColumn; - GLint destY = tr->TileHeightNB * tr->CurrentRow; - - /* setup pixel store for glReadPixels */ - glPixelStorei(GL_PACK_ROW_LENGTH, tr->ImageWidth); - glPixelStorei(GL_PACK_SKIP_ROWS, destY); - glPixelStorei(GL_PACK_SKIP_PIXELS, destX); - /*glPixelStorei(GL_PACK_ALIGNMENT, 1);*/ - - /* read the tile into the final image */ - glReadPixels(srcX, srcY, srcWidth, srcHeight, - tr->ImageFormat, tr->ImageType, tr->ImageBuffer); - } - - /* restore previous glPixelStore values */ - glPixelStorei(GL_PACK_ROW_LENGTH, prevRowLength); - glPixelStorei(GL_PACK_SKIP_ROWS, prevSkipRows); - glPixelStorei(GL_PACK_SKIP_PIXELS, prevSkipPixels); - /*glPixelStorei(GL_PACK_ALIGNMENT, prevAlignment);*/ - - /* increment tile counter, return 1 if more tiles left to render */ - tr->CurrentTile++; - if (tr->CurrentTile >= tr->Rows * tr->Columns) { - /* restore user's viewport */ - glViewport(tr->ViewportSave[0], tr->ViewportSave[1], - tr->ViewportSave[2], tr->ViewportSave[3]); - tr->CurrentTile = -1; /* all done */ - return 0; - } - else - return 1; + GLint prevRowLength, prevSkipRows, prevSkipPixels; + + if (!tr) + return 0; + + assert(tr->CurrentTile>=0); + + /* be sure OpenGL rendering is finished */ + glFlush(); + + /* save current glPixelStore values */ + glGetIntegerv(GL_PACK_ROW_LENGTH, &prevRowLength); + glGetIntegerv(GL_PACK_SKIP_ROWS, &prevSkipRows); + glGetIntegerv(GL_PACK_SKIP_PIXELS, &prevSkipPixels); + /*glGetIntegerv(GL_PACK_ALIGNMENT, &prevAlignment);*/ + + if (tr->TileBuffer) { + GLint srcX = tr->TileBorder; + GLint srcY = tr->TileBorder; + GLint srcWidth = tr->TileWidthNB; + GLint srcHeight = tr->TileHeightNB; + glReadPixels(srcX, srcY, srcWidth, srcHeight, + tr->TileFormat, tr->TileType, tr->TileBuffer); + } + + if (tr->ImageBuffer) { + GLint srcX = tr->TileBorder; + GLint srcY = tr->TileBorder; + GLint srcWidth = tr->CurrentTileWidth - 2 * tr->TileBorder; + GLint srcHeight = tr->CurrentTileHeight - 2 * tr->TileBorder; + GLint destX = tr->TileWidthNB * tr->CurrentColumn; + GLint destY = tr->TileHeightNB * tr->CurrentRow; + + /* setup pixel store for glReadPixels */ + glPixelStorei(GL_PACK_ROW_LENGTH, tr->ImageWidth); + glPixelStorei(GL_PACK_SKIP_ROWS, destY); + glPixelStorei(GL_PACK_SKIP_PIXELS, destX); + /*glPixelStorei(GL_PACK_ALIGNMENT, 1);*/ + + /* read the tile into the final image */ + glReadPixels(srcX, srcY, srcWidth, srcHeight, + tr->ImageFormat, tr->ImageType, tr->ImageBuffer); + } + + /* restore previous glPixelStore values */ + glPixelStorei(GL_PACK_ROW_LENGTH, prevRowLength); + glPixelStorei(GL_PACK_SKIP_ROWS, prevSkipRows); + glPixelStorei(GL_PACK_SKIP_PIXELS, prevSkipPixels); + /*glPixelStorei(GL_PACK_ALIGNMENT, prevAlignment);*/ + + /* increment tile counter, return 1 if more tiles left to render */ + tr->CurrentTile++; + if (tr->CurrentTile >= tr->Rows * tr->Columns) { + /* restore user's viewport */ + glViewport(tr->ViewportSave[0], tr->ViewportSave[1], + tr->ViewportSave[2], tr->ViewportSave[3]); + tr->CurrentTile = -1; /* all done */ + return 0; + } + else + return 1; } #endif |