diff options
Diffstat (limited to 'src/egl/main/eglconfig.c')
| -rw-r--r-- | src/egl/main/eglconfig.c | 265 |
1 files changed, 14 insertions, 251 deletions
diff --git a/src/egl/main/eglconfig.c b/src/egl/main/eglconfig.c index c180e30d7fa..c6369e7adfa 100644 --- a/src/egl/main/eglconfig.c +++ b/src/egl/main/eglconfig.c @@ -17,48 +17,6 @@ #define MIN2(A, B) (((A) < (B)) ? (A) : (B)) -/** - * Convert an _EGLConfig to a __GLcontextModes object. - * NOTE: This routine may be incomplete - we're only making sure that - * the fields needed by Mesa (for _mesa_create_context/framebuffer) are - * set correctly. - */ -void -_eglConfigToContextModesRec(const _EGLConfig *config, __GLcontextModes *mode) -{ - memset(mode, 0, sizeof(*mode)); - - mode->rgbMode = GL_TRUE; /* no color index */ - mode->colorIndexMode = GL_FALSE; - mode->doubleBufferMode = GL_TRUE; /* always DB for now */ - mode->stereoMode = GL_FALSE; - - mode->redBits = GET_CONFIG_ATTRIB(config, EGL_RED_SIZE); - mode->greenBits = GET_CONFIG_ATTRIB(config, EGL_GREEN_SIZE); - mode->blueBits = GET_CONFIG_ATTRIB(config, EGL_BLUE_SIZE); - mode->alphaBits = GET_CONFIG_ATTRIB(config, EGL_ALPHA_SIZE); - mode->rgbBits = GET_CONFIG_ATTRIB(config, EGL_BUFFER_SIZE); - - /* no rgba masks - fix? */ - - mode->depthBits = GET_CONFIG_ATTRIB(config, EGL_DEPTH_SIZE); - mode->haveDepthBuffer = mode->depthBits > 0; - - mode->stencilBits = GET_CONFIG_ATTRIB(config, EGL_STENCIL_SIZE); - mode->haveStencilBuffer = mode->stencilBits > 0; - - /* no accum */ - - mode->level = GET_CONFIG_ATTRIB(config, EGL_LEVEL); - mode->samples = GET_CONFIG_ATTRIB(config, EGL_SAMPLES); - mode->sampleBuffers = GET_CONFIG_ATTRIB(config, EGL_SAMPLE_BUFFERS); - - /* surface type - not really needed */ - mode->visualType = GLX_TRUE_COLOR; - mode->renderType = GLX_RGBA_BIT; -} - - void _eglSetConfigAttrib(_EGLConfig *config, EGLint attr, EGLint val) { @@ -76,7 +34,7 @@ void _eglInitConfig(_EGLConfig *config, EGLint id) { memset(config, 0, sizeof(*config)); - config->Handle = id; + config->Handle = (EGLConfig) id; _eglSetConfigAttrib(config, EGL_CONFIG_ID, id); _eglSetConfigAttrib(config, EGL_BIND_TO_TEXTURE_RGB, EGL_DONT_CARE); _eglSetConfigAttrib(config, EGL_BIND_TO_TEXTURE_RGBA, EGL_DONT_CARE); @@ -100,7 +58,19 @@ _eglInitConfig(_EGLConfig *config, EGLint id) /** + * Return the public handle for an internal _EGLConfig. + * This is the inverse of _eglLookupConfig(). + */ +EGLConfig +_eglGetConfigHandle(_EGLConfig *config) +{ + return config ? config->Handle : 0; +} + + +/** * Given an EGLConfig handle, return the corresponding _EGLConfig object. + * This is the inverse of _eglGetConfigHandle(). */ _EGLConfig * _eglLookupConfig(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config) @@ -132,7 +102,7 @@ _eglAddConfig(_EGLDisplay *display, const _EGLConfig *config) if (newConfigs) { display->Configs = newConfigs; display->Configs[n] = *config; /* copy struct */ - display->Configs[n].Handle = n; + display->Configs[n].Handle = (EGLConfig) n; display->NumConfigs++; return display->Configs + n; } @@ -429,210 +399,3 @@ _eglGetConfigs(_EGLDriver *drv, EGLDisplay dpy, EGLConfig *configs, return EGL_TRUE; } - - -/** - * Creates a set of \c __GLcontextModes that a driver will expose. - * - * A set of \c __GLcontextModes will be created based on the supplied - * parameters. The number of modes processed will be 2 * - * \c num_depth_stencil_bits * \c num_db_modes. - * - * For the most part, data is just copied from \c depth_bits, \c stencil_bits, - * \c db_modes, and \c visType into each \c __GLcontextModes element. - * However, the meanings of \c fb_format and \c fb_type require further - * explanation. The \c fb_format specifies which color components are in - * each pixel and what the default order is. For example, \c GL_RGB specifies - * that red, green, blue are available and red is in the "most significant" - * position and blue is in the "least significant". The \c fb_type specifies - * the bit sizes of each component and the actual ordering. For example, if - * \c GL_UNSIGNED_SHORT_5_6_5_REV is specified with \c GL_RGB, bits [15:11] - * are the blue value, bits [10:5] are the green value, and bits [4:0] are - * the red value. - * - * One sublte issue is the combination of \c GL_RGB or \c GL_BGR and either - * of the \c GL_UNSIGNED_INT_8_8_8_8 modes. The resulting mask values in the - * \c __GLcontextModes structure is \b identical to the \c GL_RGBA or - * \c GL_BGRA case, except the \c alphaMask is zero. This means that, as - * far as this routine is concerned, \c GL_RGB with \c GL_UNSIGNED_INT_8_8_8_8 - * still uses 32-bits. - * - * If in doubt, look at the tables used in the function. - * - * \param ptr_to_modes Pointer to a pointer to a linked list of - * \c __GLcontextModes. Upon completion, a pointer to - * the next element to be process will be stored here. - * If the function fails and returns \c GL_FALSE, this - * value will be unmodified, but some elements in the - * linked list may be modified. - * \param fb_format Format of the framebuffer. Currently only \c GL_RGB, - * \c GL_RGBA, \c GL_BGR, and \c GL_BGRA are supported. - * \param fb_type Type of the pixels in the framebuffer. Currently only - * \c GL_UNSIGNED_SHORT_5_6_5, - * \c GL_UNSIGNED_SHORT_5_6_5_REV, - * \c GL_UNSIGNED_INT_8_8_8_8, and - * \c GL_UNSIGNED_INT_8_8_8_8_REV are supported. - * \param depth_bits Array of depth buffer sizes to be exposed. - * \param stencil_bits Array of stencil buffer sizes to be exposed. - * \param num_depth_stencil_bits Number of entries in both \c depth_bits and - * \c stencil_bits. - * \param db_modes Array of buffer swap modes. If an element has a - * value of \c GLX_NONE, then it represents a - * single-buffered mode. Other valid values are - * \c GLX_SWAP_EXCHANGE_OML, \c GLX_SWAP_COPY_OML, and - * \c GLX_SWAP_UNDEFINED_OML. See the - * GLX_OML_swap_method extension spec for more details. - * \param num_db_modes Number of entries in \c db_modes. - * \param visType GLX visual type. Usually either \c GLX_TRUE_COLOR or - * \c GLX_DIRECT_COLOR. - * - * \returns - * \c GL_TRUE on success or \c GL_FALSE on failure. Currently the only - * cause of failure is a bad parameter (i.e., unsupported \c fb_format or - * \c fb_type). - * - * \todo - * There is currently no way to support packed RGB modes (i.e., modes with - * exactly 3 bytes per pixel) or floating-point modes. This could probably - * be done by creating some new, private enums with clever names likes - * \c GL_UNSIGNED_3BYTE_8_8_8, \c GL_4FLOAT_32_32_32_32, - * \c GL_4HALF_16_16_16_16, etc. We can cross that bridge when we come to it. - */ -GLboolean -_eglFillInConfigs(_EGLConfig * configs, - GLenum fb_format, GLenum fb_type, - const u_int8_t * depth_bits, const u_int8_t * stencil_bits, - unsigned num_depth_stencil_bits, - const GLenum * db_modes, unsigned num_db_modes, - int visType) -{ - static const u_int8_t bits_table[3][4] = { - /* R G B A */ - { 5, 6, 5, 0 }, /* Any GL_UNSIGNED_SHORT_5_6_5 */ - { 8, 8, 8, 0 }, /* Any RGB with any GL_UNSIGNED_INT_8_8_8_8 */ - { 8, 8, 8, 8 } /* Any RGBA with any GL_UNSIGNED_INT_8_8_8_8 */ - }; - - /* The following arrays are all indexed by the fb_type masked with 0x07. - * Given the four supported fb_type values, this results in valid array - * indices of 3, 4, 5, and 7. - */ - static const u_int32_t masks_table_rgb[8][4] = { - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x0000F800, 0x000007E0, 0x0000001F, 0x00000000}, /* 5_6_5 */ - {0x0000001F, 0x000007E0, 0x0000F800, 0x00000000}, /* 5_6_5_REV */ - {0xFF000000, 0x00FF0000, 0x0000FF00, 0x00000000}, /* 8_8_8_8 */ - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x000000FF, 0x0000FF00, 0x00FF0000, 0x00000000} /* 8_8_8_8_REV */ - }; - - static const u_int32_t masks_table_rgba[8][4] = { - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x0000F800, 0x000007E0, 0x0000001F, 0x00000000}, /* 5_6_5 */ - {0x0000001F, 0x000007E0, 0x0000F800, 0x00000000}, /* 5_6_5_REV */ - {0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF}, /* 8_8_8_8 */ - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000}, /* 8_8_8_8_REV */ - }; - - static const u_int32_t masks_table_bgr[8][4] = { - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x0000001F, 0x000007E0, 0x0000F800, 0x00000000}, /* 5_6_5 */ - {0x0000F800, 0x000007E0, 0x0000001F, 0x00000000}, /* 5_6_5_REV */ - {0x0000FF00, 0x00FF0000, 0xFF000000, 0x00000000}, /* 8_8_8_8 */ - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000}, /* 8_8_8_8_REV */ - }; - - static const u_int32_t masks_table_bgra[8][4] = { - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x0000001F, 0x000007E0, 0x0000F800, 0x00000000}, /* 5_6_5 */ - {0x0000F800, 0x000007E0, 0x0000001F, 0x00000000}, /* 5_6_5_REV */ - {0x0000FF00, 0x00FF0000, 0xFF000000, 0x000000FF}, /* 8_8_8_8 */ - {0x00000000, 0x00000000, 0x00000000, 0x00000000}, - {0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000}, /* 8_8_8_8_REV */ - }; - - static const u_int8_t bytes_per_pixel[8] = { - 0, 0, 0, 2, 2, 4, 0, 4 - }; - - const u_int8_t * bits; - const u_int32_t * masks; - const int index = fb_type & 0x07; - _EGLConfig *config; - unsigned i; - unsigned j; - unsigned k; - - if ( bytes_per_pixel[index] == 0 ) { - _eglLog(_EGL_INFO, - "[%s:%u] Framebuffer type 0x%04x has 0 bytes per pixel.", - __FUNCTION__, __LINE__, fb_type); - return GL_FALSE; - } - - /* Valid types are GL_UNSIGNED_SHORT_5_6_5 and GL_UNSIGNED_INT_8_8_8_8 and - * the _REV versions. - * - * Valid formats are GL_RGBA, GL_RGB, and GL_BGRA. - */ - switch ( fb_format ) { - case GL_RGB: - bits = (bytes_per_pixel[index] == 2) ? bits_table[0] : bits_table[1]; - masks = masks_table_rgb[index]; - break; - - case GL_RGBA: - bits = (bytes_per_pixel[index] == 2) ? bits_table[0] : bits_table[2]; - masks = masks_table_rgba[index]; - break; - - case GL_BGR: - bits = (bytes_per_pixel[index] == 2) ? bits_table[0] : bits_table[1]; - masks = masks_table_bgr[index]; - break; - - case GL_BGRA: - bits = (bytes_per_pixel[index] == 2) ? bits_table[0] : bits_table[2]; - masks = masks_table_bgra[index]; - break; - - default: - _eglLog(_EGL_WARNING, - "[%s:%u] Framebuffer format 0x%04x is not GL_RGB, GL_RGBA, GL_BGR, or GL_BGRA.", - __FUNCTION__, __LINE__, fb_format); - return GL_FALSE; - } - - config = configs; - for (k = 0; k < num_depth_stencil_bits; k++) { - for (i = 0; i < num_db_modes; i++) { - for (j = 0; j < 2; j++) { - _eglSetConfigAttrib(config, EGL_RED_SIZE, bits[0]); - _eglSetConfigAttrib(config, EGL_GREEN_SIZE, bits[1]); - _eglSetConfigAttrib(config, EGL_BLUE_SIZE, bits[2]); - _eglSetConfigAttrib(config, EGL_ALPHA_SIZE, bits[3]); - _eglSetConfigAttrib(config, EGL_BUFFER_SIZE, - bits[0] + bits[1] + bits[2] + bits[3]); - - _eglSetConfigAttrib(config, EGL_STENCIL_SIZE, stencil_bits[k]); - _eglSetConfigAttrib(config, EGL_DEPTH_SIZE, depth_bits[i]); - - _eglSetConfigAttrib(config, EGL_SURFACE_TYPE, EGL_SCREEN_BIT_MESA | - EGL_PBUFFER_BIT | EGL_PIXMAP_BIT | EGL_WINDOW_BIT); - - config++; - } - } - } - return GL_TRUE; -} |