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Diffstat (limited to 'src/glx/glcontextmodes.c')
| -rw-r--r-- | src/glx/glcontextmodes.c | 518 |
1 files changed, 0 insertions, 518 deletions
diff --git a/src/glx/glcontextmodes.c b/src/glx/glcontextmodes.c deleted file mode 100644 index cdc16f8330..0000000000 --- a/src/glx/glcontextmodes.c +++ /dev/null @@ -1,518 +0,0 @@ -/* - * (C) Copyright IBM Corporation 2003 - * 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"), - * to deal in the Software without restriction, including without limitation - * on the rights to use, copy, modify, merge, publish, distribute, sub - * license, and/or sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * 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 NON-INFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS 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 glcontextmodes.c - * Utility routines for working with \c __GLcontextModes structures. At - * some point most or all of these functions will be moved to the Mesa - * code base. - * - * \author Ian Romanick <idr@us.ibm.com> - */ - -#include <GL/glx.h> -#include "GL/glxint.h" -#include <stdlib.h> -#include <string.h> - -#include "glcontextmodes.h" - -#define NUM_VISUAL_TYPES 6 - -/** - * Convert an X visual type to a GLX visual type. - * - * \param visualType X visual type (i.e., \c TrueColor, \c StaticGray, etc.) - * to be converted. - * \return If \c visualType is a valid X visual type, a GLX visual type will - * be returned. Otherwise \c GLX_NONE will be returned. - */ -GLint -_gl_convert_from_x_visual_type(int visualType) -{ - static const int glx_visual_types[NUM_VISUAL_TYPES] = { - GLX_STATIC_GRAY, GLX_GRAY_SCALE, - GLX_STATIC_COLOR, GLX_PSEUDO_COLOR, - GLX_TRUE_COLOR, GLX_DIRECT_COLOR - }; - - return ((unsigned) visualType < NUM_VISUAL_TYPES) - ? glx_visual_types[visualType] : GLX_NONE; -} - - -/** - * Convert a GLX visual type to an X visual type. - * - * \param visualType GLX visual type (i.e., \c GLX_TRUE_COLOR, - * \c GLX_STATIC_GRAY, etc.) to be converted. - * \return If \c visualType is a valid GLX visual type, an X visual type will - * be returned. Otherwise -1 will be returned. - */ -GLint -_gl_convert_to_x_visual_type(int visualType) -{ - static const int x_visual_types[NUM_VISUAL_TYPES] = { - TrueColor, DirectColor, - PseudoColor, StaticColor, - GrayScale, StaticGray - }; - - return ((unsigned) (visualType - GLX_TRUE_COLOR) < NUM_VISUAL_TYPES) - ? x_visual_types[visualType - GLX_TRUE_COLOR] : -1; -} - - -/** - * Copy a GLX visual config structure to a GL context mode structure. All - * of the fields in \c config are copied to \c mode. Additional fields in - * \c mode that can be derrived from the fields of \c config (i.e., - * \c haveDepthBuffer) are also filled in. The remaining fields in \c mode - * that cannot be derived are set to default values. - * - * \param mode Destination GL context mode. - * \param config Source GLX visual config. - * - * \note - * The \c fbconfigID and \c visualID fields of the \c __GLcontextModes - * structure will be set to the \c vid of the \c __GLXvisualConfig structure. - */ -void -_gl_copy_visual_to_context_mode(__GLcontextModes * mode, - const __GLXvisualConfig * config) -{ - __GLcontextModes *const next = mode->next; - - (void) memset(mode, 0, sizeof(__GLcontextModes)); - mode->next = next; - - mode->visualID = config->vid; - mode->visualType = _gl_convert_from_x_visual_type(config->class); - mode->xRenderable = GL_TRUE; - mode->fbconfigID = config->vid; - mode->drawableType = GLX_WINDOW_BIT | GLX_PIXMAP_BIT; - - mode->rgbMode = (config->rgba != 0); - mode->renderType = (mode->rgbMode) ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT; - - mode->colorIndexMode = !(mode->rgbMode); - mode->doubleBufferMode = (config->doubleBuffer != 0); - mode->stereoMode = (config->stereo != 0); - - mode->haveAccumBuffer = ((config->accumRedSize + - config->accumGreenSize + - config->accumBlueSize + - config->accumAlphaSize) > 0); - mode->haveDepthBuffer = (config->depthSize > 0); - mode->haveStencilBuffer = (config->stencilSize > 0); - - mode->redBits = config->redSize; - mode->greenBits = config->greenSize; - mode->blueBits = config->blueSize; - mode->alphaBits = config->alphaSize; - mode->redMask = config->redMask; - mode->greenMask = config->greenMask; - mode->blueMask = config->blueMask; - mode->alphaMask = config->alphaMask; - mode->rgbBits = mode->rgbMode ? config->bufferSize : 0; - mode->indexBits = mode->colorIndexMode ? config->bufferSize : 0; - - mode->accumRedBits = config->accumRedSize; - mode->accumGreenBits = config->accumGreenSize; - mode->accumBlueBits = config->accumBlueSize; - mode->accumAlphaBits = config->accumAlphaSize; - mode->depthBits = config->depthSize; - mode->stencilBits = config->stencilSize; - - mode->numAuxBuffers = config->auxBuffers; - mode->level = config->level; - - mode->visualRating = config->visualRating; - mode->transparentPixel = config->transparentPixel; - mode->transparentRed = config->transparentRed; - mode->transparentGreen = config->transparentGreen; - mode->transparentBlue = config->transparentBlue; - mode->transparentAlpha = config->transparentAlpha; - mode->transparentIndex = config->transparentIndex; - mode->samples = config->multiSampleSize; - mode->sampleBuffers = config->nMultiSampleBuffers; - /* mode->visualSelectGroup = config->visualSelectGroup; ? */ - - mode->swapMethod = GLX_SWAP_UNDEFINED_OML; - - mode->bindToTextureRgb = (mode->rgbMode) ? GL_TRUE : GL_FALSE; - mode->bindToTextureRgba = (mode->rgbMode && mode->alphaBits) ? - GL_TRUE : GL_FALSE; - mode->bindToMipmapTexture = mode->rgbMode ? GL_TRUE : GL_FALSE; - mode->bindToTextureTargets = mode->rgbMode ? - GLX_TEXTURE_1D_BIT_EXT | GLX_TEXTURE_2D_BIT_EXT | - GLX_TEXTURE_RECTANGLE_BIT_EXT : 0; - mode->yInverted = GL_FALSE; -} - - -/** - * Get data from a GL context mode. - * - * \param mode GL context mode whose data is to be returned. - * \param attribute Attribute of \c mode that is to be returned. - * \param value_return Location to store the data member of \c mode. - * \return If \c attribute is a valid attribute of \c mode, zero is - * returned. Otherwise \c GLX_BAD_ATTRIBUTE is returned. - */ -int -_gl_get_context_mode_data(const __GLcontextModes * mode, int attribute, - int *value_return) -{ - switch (attribute) { - case GLX_USE_GL: - *value_return = GL_TRUE; - return 0; - case GLX_BUFFER_SIZE: - *value_return = mode->rgbBits; - return 0; - case GLX_RGBA: - *value_return = mode->rgbMode; - return 0; - case GLX_RED_SIZE: - *value_return = mode->redBits; - return 0; - case GLX_GREEN_SIZE: - *value_return = mode->greenBits; - return 0; - case GLX_BLUE_SIZE: - *value_return = mode->blueBits; - return 0; - case GLX_ALPHA_SIZE: - *value_return = mode->alphaBits; - return 0; - case GLX_DOUBLEBUFFER: - *value_return = mode->doubleBufferMode; - return 0; - case GLX_STEREO: - *value_return = mode->stereoMode; - return 0; - case GLX_AUX_BUFFERS: - *value_return = mode->numAuxBuffers; - return 0; - case GLX_DEPTH_SIZE: - *value_return = mode->depthBits; - return 0; - case GLX_STENCIL_SIZE: - *value_return = mode->stencilBits; - return 0; - case GLX_ACCUM_RED_SIZE: - *value_return = mode->accumRedBits; - return 0; - case GLX_ACCUM_GREEN_SIZE: - *value_return = mode->accumGreenBits; - return 0; - case GLX_ACCUM_BLUE_SIZE: - *value_return = mode->accumBlueBits; - return 0; - case GLX_ACCUM_ALPHA_SIZE: - *value_return = mode->accumAlphaBits; - return 0; - case GLX_LEVEL: - *value_return = mode->level; - return 0; -#ifndef GLX_USE_APPLEGL /* This isn't supported by CGL. */ - case GLX_TRANSPARENT_TYPE_EXT: - *value_return = mode->transparentPixel; - return 0; -#endif - case GLX_TRANSPARENT_RED_VALUE: - *value_return = mode->transparentRed; - return 0; - case GLX_TRANSPARENT_GREEN_VALUE: - *value_return = mode->transparentGreen; - return 0; - case GLX_TRANSPARENT_BLUE_VALUE: - *value_return = mode->transparentBlue; - return 0; - case GLX_TRANSPARENT_ALPHA_VALUE: - *value_return = mode->transparentAlpha; - return 0; - case GLX_TRANSPARENT_INDEX_VALUE: - *value_return = mode->transparentIndex; - return 0; - case GLX_X_VISUAL_TYPE: - *value_return = mode->visualType; - return 0; - case GLX_CONFIG_CAVEAT: - *value_return = mode->visualRating; - return 0; - case GLX_VISUAL_ID: - *value_return = mode->visualID; - return 0; - case GLX_DRAWABLE_TYPE: - *value_return = mode->drawableType; - return 0; - case GLX_RENDER_TYPE: - *value_return = mode->renderType; - return 0; - case GLX_X_RENDERABLE: - *value_return = mode->xRenderable; - return 0; - case GLX_FBCONFIG_ID: - *value_return = mode->fbconfigID; - return 0; - case GLX_MAX_PBUFFER_WIDTH: - *value_return = mode->maxPbufferWidth; - return 0; - case GLX_MAX_PBUFFER_HEIGHT: - *value_return = mode->maxPbufferHeight; - return 0; - case GLX_MAX_PBUFFER_PIXELS: - *value_return = mode->maxPbufferPixels; - return 0; -#ifndef GLX_USE_APPLEGL /* These aren't supported by CGL. */ - case GLX_OPTIMAL_PBUFFER_WIDTH_SGIX: - *value_return = mode->optimalPbufferWidth; - return 0; - case GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX: - *value_return = mode->optimalPbufferHeight; - return 0; - case GLX_SWAP_METHOD_OML: - *value_return = mode->swapMethod; - return 0; -#endif - case GLX_SAMPLE_BUFFERS_SGIS: - *value_return = mode->sampleBuffers; - return 0; - case GLX_SAMPLES_SGIS: - *value_return = mode->samples; - return 0; - case GLX_BIND_TO_TEXTURE_RGB_EXT: - *value_return = mode->bindToTextureRgb; - return 0; - case GLX_BIND_TO_TEXTURE_RGBA_EXT: - *value_return = mode->bindToTextureRgba; - return 0; - case GLX_BIND_TO_MIPMAP_TEXTURE_EXT: - *value_return = mode->bindToMipmapTexture == GL_TRUE ? GL_TRUE : - GL_FALSE; - return 0; - case GLX_BIND_TO_TEXTURE_TARGETS_EXT: - *value_return = mode->bindToTextureTargets; - return 0; - case GLX_Y_INVERTED_EXT: - *value_return = mode->yInverted; - return 0; - - /* Applications are NOT allowed to query GLX_VISUAL_SELECT_GROUP_SGIX. - * It is ONLY for communication between the GLX client and the GLX - * server. - */ - case GLX_VISUAL_SELECT_GROUP_SGIX: - default: - return GLX_BAD_ATTRIBUTE; - } -} - - -/** - * Allocate a linked list of \c __GLcontextModes structures. The fields of - * each structure will be initialized to "reasonable" default values. In - * most cases this is the default value defined by table 3.4 of the GLX - * 1.3 specification. This means that most values are either initialized to - * zero or \c GLX_DONT_CARE (which is -1). As support for additional - * extensions is added, the new values will be initialized to appropriate - * values from the extension specification. - * - * \param count Number of structures to allocate. - * \param minimum_size Minimum size of a structure to allocate. This allows - * for differences in the version of the - * \c __GLcontextModes stucture used in libGL and in a - * DRI-based driver. - * \returns A pointer to the first element in a linked list of \c count - * stuctures on success, or \c NULL on failure. - * - * \warning Use of \c minimum_size does \b not guarantee binary compatibility. - * The fundamental assumption is that if the \c minimum_size - * specified by the driver and the size of the \c __GLcontextModes - * structure in libGL is the same, then the meaning of each byte in - * the structure is the same in both places. \b Be \b careful! - * Basically this means that fields have to be added in libGL and - * then propagated to drivers. Drivers should \b never arbitrarilly - * extend the \c __GLcontextModes data-structure. - */ -__GLcontextModes * -_gl_context_modes_create(unsigned count, size_t minimum_size) -{ - const size_t size = (minimum_size > sizeof(__GLcontextModes)) - ? minimum_size : sizeof(__GLcontextModes); - __GLcontextModes *base = NULL; - __GLcontextModes **next; - unsigned i; - - next = &base; - for (i = 0; i < count; i++) { - *next = (__GLcontextModes *) malloc(size); - if (*next == NULL) { - _gl_context_modes_destroy(base); - base = NULL; - break; - } - - (void) memset(*next, 0, size); - (*next)->visualID = GLX_DONT_CARE; - (*next)->visualType = GLX_DONT_CARE; - (*next)->visualRating = GLX_NONE; - (*next)->transparentPixel = GLX_NONE; - (*next)->transparentRed = GLX_DONT_CARE; - (*next)->transparentGreen = GLX_DONT_CARE; - (*next)->transparentBlue = GLX_DONT_CARE; - (*next)->transparentAlpha = GLX_DONT_CARE; - (*next)->transparentIndex = GLX_DONT_CARE; - (*next)->xRenderable = GLX_DONT_CARE; - (*next)->fbconfigID = GLX_DONT_CARE; - (*next)->swapMethod = GLX_SWAP_UNDEFINED_OML; - (*next)->bindToTextureRgb = GLX_DONT_CARE; - (*next)->bindToTextureRgba = GLX_DONT_CARE; - (*next)->bindToMipmapTexture = GLX_DONT_CARE; - (*next)->bindToTextureTargets = GLX_DONT_CARE; - (*next)->yInverted = GLX_DONT_CARE; - - next = &((*next)->next); - } - - return base; -} - - -/** - * Destroy a linked list of \c __GLcontextModes structures created by - * \c _gl_context_modes_create. - * - * \param modes Linked list of structures to be destroyed. All structres - * in the list will be freed. - */ -void -_gl_context_modes_destroy(__GLcontextModes * modes) -{ - while (modes != NULL) { - __GLcontextModes *const next = modes->next; - - free(modes); - modes = next; - } -} - - -/** - * Find a context mode matching a Visual ID. - * - * \param modes List list of context-mode structures to be searched. - * \param vid Visual ID to be found. - * \returns A pointer to a context-mode in \c modes if \c vid was found in - * the list, or \c NULL if it was not. - */ - -__GLcontextModes * -_gl_context_modes_find_visual(__GLcontextModes * modes, int vid) -{ - __GLcontextModes *m; - - for (m = modes; m != NULL; m = m->next) - if (m->visualID == vid) - return m; - - return NULL; -} - -__GLcontextModes * -_gl_context_modes_find_fbconfig(__GLcontextModes * modes, int fbid) -{ - __GLcontextModes *m; - - for (m = modes; m != NULL; m = m->next) - if (m->fbconfigID == fbid) - return m; - - return NULL; -} - -/** - * Determine if two context-modes are the same. This is intended to be used - * by libGL implementations to compare to sets of driver generated FBconfigs. - * - * \param a Context-mode to be compared. - * \param b Context-mode to be compared. - * \returns \c GL_TRUE if the two context-modes are the same. \c GL_FALSE is - * returned otherwise. - */ -GLboolean -_gl_context_modes_are_same(const __GLcontextModes * a, - const __GLcontextModes * b) -{ - return ((a->rgbMode == b->rgbMode) && - (a->floatMode == b->floatMode) && - (a->colorIndexMode == b->colorIndexMode) && - (a->doubleBufferMode == b->doubleBufferMode) && - (a->stereoMode == b->stereoMode) && - (a->redBits == b->redBits) && - (a->greenBits == b->greenBits) && - (a->blueBits == b->blueBits) && (a->alphaBits == b->alphaBits) && -#if 0 /* For some reason these don't get set on the client-side in libGL. */ - (a->redMask == b->redMask) && - (a->greenMask == b->greenMask) && - (a->blueMask == b->blueMask) && (a->alphaMask == b->alphaMask) && -#endif - (a->rgbBits == b->rgbBits) && - (a->indexBits == b->indexBits) && - (a->accumRedBits == b->accumRedBits) && - (a->accumGreenBits == b->accumGreenBits) && - (a->accumBlueBits == b->accumBlueBits) && - (a->accumAlphaBits == b->accumAlphaBits) && - (a->depthBits == b->depthBits) && - (a->stencilBits == b->stencilBits) && - (a->numAuxBuffers == b->numAuxBuffers) && - (a->level == b->level) && - (a->pixmapMode == b->pixmapMode) && - (a->visualRating == b->visualRating) && - (a->transparentPixel == b->transparentPixel) && - ((a->transparentPixel != GLX_TRANSPARENT_RGB) || - ((a->transparentRed == b->transparentRed) && - (a->transparentGreen == b->transparentGreen) && - (a->transparentBlue == b->transparentBlue) && - (a->transparentAlpha == b->transparentAlpha))) && - ((a->transparentPixel != GLX_TRANSPARENT_INDEX) || - (a->transparentIndex == b->transparentIndex)) && - (a->sampleBuffers == b->sampleBuffers) && - (a->samples == b->samples) && - ((a->drawableType & b->drawableType) != 0) && - (a->renderType == b->renderType) && - (a->maxPbufferWidth == b->maxPbufferWidth) && - (a->maxPbufferHeight == b->maxPbufferHeight) && - (a->maxPbufferPixels == b->maxPbufferPixels) && - (a->optimalPbufferWidth == b->optimalPbufferWidth) && - (a->optimalPbufferHeight == b->optimalPbufferHeight) && - (a->swapMethod == b->swapMethod) && - (a->bindToTextureRgb == b->bindToTextureRgb) && - (a->bindToTextureRgba == b->bindToTextureRgba) && - (a->bindToMipmapTexture == b->bindToMipmapTexture) && - (a->bindToTextureTargets == b->bindToTextureTargets) && - (a->yInverted == b->yInverted)); -} |