From d5543213f2b8d9db823c12a2adf4cd6138e94e4d Mon Sep 17 00:00:00 2001 From: Fredrik Höglund <fredrik@kde.org> Date: Wed, 3 Apr 2013 21:47:44 +0200 Subject: mesa: Split out the format code from update_array() Split out the code for updating the array format into a new function called update_array_format(). This function will be called by both update_array() and the new glVertexAttrib*Format() entry points in ARB_vertex_attrib_binding. Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> --- src/mesa/main/varray.c | 150 ++++++++++++++++++++++++++++++------------------- 1 file changed, 93 insertions(+), 57 deletions(-) (limited to 'src') diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c index 24cd324cb99..bb26b0929c9 100644 --- a/src/mesa/main/varray.c +++ b/src/mesa/main/varray.c @@ -103,52 +103,33 @@ type_to_bit(const struct gl_context *ctx, GLenum type) /** - * Do error checking and update state for glVertex/Color/TexCoord/...Pointer - * functions. + * Does error checking and updates the format in an attrib array. * - * \param func name of calling function used for error reporting - * \param attrib the attribute array index to update - * \param legalTypes bitmask of *_BIT above indicating legal datatypes - * \param sizeMin min allowable size value - * \param sizeMax max allowable size value (may also be BGRA_OR_4) - * \param size components per element (1, 2, 3 or 4) - * \param type datatype of each component (GL_FLOAT, GL_INT, etc) - * \param stride stride between elements, in elements - * \param normalized are integer types converted to floats in [-1, 1]? - * \param integer integer-valued values (will not be normalized to [-1,1]) - * \param ptr the address (or offset inside VBO) of the array data + * Called by update_array(). + * + * \param func Name of calling function used for error reporting + * \param attrib The index of the attribute array + * \param legalTypes Bitmask of *_BIT above indicating legal datatypes + * \param sizeMin Min allowable size value + * \param sizeMax Max allowable size value (may also be BGRA_OR_4) + * \param size Components per element (1, 2, 3 or 4) + * \param type Datatype of each component (GL_FLOAT, GL_INT, etc) + * \param normalized Whether integer types are converted to floats in [-1, 1] + * \param integer Integer-valued values (will not be normalized to [-1, 1]) */ -static void -update_array(struct gl_context *ctx, - const char *func, - GLuint attrib, GLbitfield legalTypesMask, - GLint sizeMin, GLint sizeMax, - GLint size, GLenum type, GLsizei stride, - GLboolean normalized, GLboolean integer, - const GLvoid *ptr) +static bool +update_array_format(struct gl_context *ctx, + const char *func, + GLuint attrib, GLbitfield legalTypesMask, + GLint sizeMin, GLint sizeMax, + GLint size, GLenum type, + GLboolean normalized, GLboolean integer) { struct gl_client_array *array; GLbitfield typeBit; - GLsizei elementSize; + GLuint elementSize; GLenum format = GL_RGBA; - /* Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says: - * - * "Client vertex arrays - all vertex array attribute pointers must - * refer to buffer objects (section 2.9.2). The default vertex array - * object (the name zero) is also deprecated. Calling - * VertexAttribPointer when no buffer object or no vertex array object - * is bound will generate an INVALID_OPERATION error..." - * - * The check for VBOs is handled below. - */ - if (ctx->API == API_OPENGL_CORE - && (ctx->Array.ArrayObj == ctx->Array.DefaultArrayObj)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(no array object bound)", - func); - return; - } - if (_mesa_is_gles(ctx)) { legalTypesMask &= ~(FIXED_GL_BIT | DOUBLE_BIT); @@ -186,7 +167,7 @@ update_array(struct gl_context *ctx, if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) { _mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)", func, _mesa_lookup_enum_by_nr(type)); - return; + return false; } /* Do size parameter checking. @@ -206,26 +187,26 @@ update_array(struct gl_context *ctx, * ... * • size is BGRA and normalized is FALSE;" */ - GLboolean bgra_error = GL_FALSE; + bool bgra_error = false; if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev) { if (type != GL_UNSIGNED_INT_2_10_10_10_REV && type != GL_INT_2_10_10_10_REV && type != GL_UNSIGNED_BYTE) - bgra_error = GL_TRUE; + bgra_error = true; } else if (type != GL_UNSIGNED_BYTE) - bgra_error = GL_TRUE; + bgra_error = true; if (bgra_error) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s(size=GL_BGRA and type=%s)", func, _mesa_lookup_enum_by_nr(type)); - return; + return false; } if (!normalized) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s(size=GL_BGRA and normalized=GL_FALSE)", func); - return; + return false; } format = GL_BGRA; @@ -233,18 +214,82 @@ update_array(struct gl_context *ctx, } else if (size < sizeMin || size > sizeMax || size > 4) { _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size); - return; + return false; } if (ctx->Extensions.ARB_vertex_type_2_10_10_10_rev && (type == GL_UNSIGNED_INT_2_10_10_10_REV || type == GL_INT_2_10_10_10_REV) && size != 4) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s(size=%d)", func, size); - return; + return false; } ASSERT(size <= 4); + elementSize = _mesa_bytes_per_vertex_attrib(size, type); + assert(elementSize != -1); + + array = &ctx->Array.ArrayObj->VertexAttrib[attrib]; + array->Size = size; + array->Type = type; + array->Format = format; + array->Normalized = normalized; + array->Integer = integer; + array->_ElementSize = elementSize; + + return true; +} + + +/** + * Do error checking and update state for glVertex/Color/TexCoord/...Pointer + * functions. + * + * \param func name of calling function used for error reporting + * \param attrib the attribute array index to update + * \param legalTypes bitmask of *_BIT above indicating legal datatypes + * \param sizeMin min allowable size value + * \param sizeMax max allowable size value (may also be BGRA_OR_4) + * \param size components per element (1, 2, 3 or 4) + * \param type datatype of each component (GL_FLOAT, GL_INT, etc) + * \param stride stride between elements, in elements + * \param normalized are integer types converted to floats in [-1, 1]? + * \param integer integer-valued values (will not be normalized to [-1,1]) + * \param ptr the address (or offset inside VBO) of the array data + */ +static void +update_array(struct gl_context *ctx, + const char *func, + GLuint attrib, GLbitfield legalTypesMask, + GLint sizeMin, GLint sizeMax, + GLint size, GLenum type, GLsizei stride, + GLboolean normalized, GLboolean integer, + const GLvoid *ptr) +{ + struct gl_client_array *array; + + /* Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says: + * + * "Client vertex arrays - all vertex array attribute pointers must + * refer to buffer objects (section 2.9.2). The default vertex array + * object (the name zero) is also deprecated. Calling + * VertexAttribPointer when no buffer object or no vertex array object + * is bound will generate an INVALID_OPERATION error..." + * + * The check for VBOs is handled below. + */ + if (ctx->API == API_OPENGL_CORE + && (ctx->Array.ArrayObj == ctx->Array.DefaultArrayObj)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(no array object bound)", + func); + return; + } + + if (!update_array_format(ctx, func, attrib, legalTypesMask, sizeMin, sizeMax, + size, type, normalized, integer)) { + return; + } + if (stride < 0) { _mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride ); return; @@ -268,19 +313,10 @@ update_array(struct gl_context *ctx, return; } - elementSize = _mesa_bytes_per_vertex_attrib(size, type); - assert(elementSize != -1); - array = &ctx->Array.ArrayObj->VertexAttrib[attrib]; - array->Size = size; - array->Type = type; - array->Format = format; array->Stride = stride; - array->StrideB = stride ? stride : elementSize; - array->Normalized = normalized; - array->Integer = integer; + array->StrideB = stride ? stride : array->_ElementSize; array->Ptr = (const GLubyte *) ptr; - array->_ElementSize = elementSize; _mesa_reference_buffer_object(ctx, &array->BufferObj, ctx->Array.ArrayBufferObj); -- cgit v1.2.3