From a772bbb16ec91a8714a498e8089f96f45730153c Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Tue, 27 May 2008 16:57:49 -0600 Subject: Move some config-related utility functions into new eglconfigutil.c file. --- src/egl/main/eglconfigutil.c | 260 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 260 insertions(+) create mode 100644 src/egl/main/eglconfigutil.c (limited to 'src/egl/main/eglconfigutil.c') diff --git a/src/egl/main/eglconfigutil.c b/src/egl/main/eglconfigutil.c new file mode 100644 index 0000000000..b6585619a5 --- /dev/null +++ b/src/egl/main/eglconfigutil.c @@ -0,0 +1,260 @@ +/** + * Extra utility functions related to EGL configs. + */ + + +#include +#include +#include +#include "eglconfigutil.h" +#include "egllog.h" + + +/** + * 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; +} + + + +/** + * Creates a set of \c _EGLConfigs 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 configs the array of configs generated + * \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. + */ +EGLBoolean +_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) +{ +#if 0 + 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; +#else + return GL_FALSE; +#endif +} + -- cgit v1.2.3 From 0d947674305a349662b3ab57733c54f9f4c1a8b3 Mon Sep 17 00:00:00 2001 From: José Fonseca Date: Tue, 24 Jun 2008 13:55:38 +0900 Subject: egl: Use standard integer types. --- src/egl/main/eglconfigutil.c | 18 +++++++++--------- src/egl/main/eglconfigutil.h | 2 +- 2 files changed, 10 insertions(+), 10 deletions(-) (limited to 'src/egl/main/eglconfigutil.c') diff --git a/src/egl/main/eglconfigutil.c b/src/egl/main/eglconfigutil.c index b6585619a5..db2ff1bfe8 100644 --- a/src/egl/main/eglconfigutil.c +++ b/src/egl/main/eglconfigutil.c @@ -118,13 +118,13 @@ _eglConfigToContextModesRec(const _EGLConfig *config, __GLcontextModes *mode) EGLBoolean _eglFillInConfigs(_EGLConfig * configs, GLenum fb_format, GLenum fb_type, - const u_int8_t * depth_bits, const u_int8_t * stencil_bits, + const uint8_t * depth_bits, const uint8_t * stencil_bits, unsigned num_depth_stencil_bits, const GLenum * db_modes, unsigned num_db_modes, int visType) { #if 0 - static const u_int8_t bits_table[3][4] = { + static const uint8_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 */ @@ -135,7 +135,7 @@ _eglFillInConfigs(_EGLConfig * configs, * 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] = { + static const uint32_t masks_table_rgb[8][4] = { {0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00000000, 0x00000000, 0x00000000, 0x00000000}, @@ -146,7 +146,7 @@ _eglFillInConfigs(_EGLConfig * configs, {0x000000FF, 0x0000FF00, 0x00FF0000, 0x00000000} /* 8_8_8_8_REV */ }; - static const u_int32_t masks_table_rgba[8][4] = { + static const uint32_t masks_table_rgba[8][4] = { {0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00000000, 0x00000000, 0x00000000, 0x00000000}, @@ -157,7 +157,7 @@ _eglFillInConfigs(_EGLConfig * configs, {0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000}, /* 8_8_8_8_REV */ }; - static const u_int32_t masks_table_bgr[8][4] = { + static const uint32_t masks_table_bgr[8][4] = { {0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00000000, 0x00000000, 0x00000000, 0x00000000}, @@ -168,7 +168,7 @@ _eglFillInConfigs(_EGLConfig * configs, {0x00FF0000, 0x0000FF00, 0x000000FF, 0x00000000}, /* 8_8_8_8_REV */ }; - static const u_int32_t masks_table_bgra[8][4] = { + static const uint32_t masks_table_bgra[8][4] = { {0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00000000, 0x00000000, 0x00000000, 0x00000000}, @@ -179,12 +179,12 @@ _eglFillInConfigs(_EGLConfig * configs, {0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000}, /* 8_8_8_8_REV */ }; - static const u_int8_t bytes_per_pixel[8] = { + static const uint8_t bytes_per_pixel[8] = { 0, 0, 0, 2, 2, 4, 0, 4 }; - const u_int8_t * bits; - const u_int32_t * masks; + const uint8_t * bits; + const uint32_t * masks; const int index = fb_type & 0x07; _EGLConfig *config; unsigned i; diff --git a/src/egl/main/eglconfigutil.h b/src/egl/main/eglconfigutil.h index 5db906db65..dff407231f 100644 --- a/src/egl/main/eglconfigutil.h +++ b/src/egl/main/eglconfigutil.h @@ -13,7 +13,7 @@ _eglConfigToContextModesRec(const _EGLConfig *config, __GLcontextModes *mode); extern EGLBoolean _eglFillInConfigs( _EGLConfig *configs, EGLenum fb_format, EGLenum fb_type, - const u_int8_t * depth_bits, const u_int8_t * stencil_bits, + const uint8_t * depth_bits, const uint8_t * stencil_bits, unsigned num_depth_stencil_bits, const EGLenum * db_modes, unsigned num_db_modes, int visType ); -- cgit v1.2.3