diff options
Diffstat (limited to 'mesalib/src/mesa/main/arrayobj.c')
-rw-r--r-- | mesalib/src/mesa/main/arrayobj.c | 192 |
1 files changed, 184 insertions, 8 deletions
diff --git a/mesalib/src/mesa/main/arrayobj.c b/mesalib/src/mesa/main/arrayobj.c index 3c8ffb5a4..320f435ea 100644 --- a/mesalib/src/mesa/main/arrayobj.c +++ b/mesalib/src/mesa/main/arrayobj.c @@ -75,6 +75,61 @@ _mesa_lookup_vao(struct gl_context *ctx, GLuint id) /** + * Looks up the array object for the given ID. + * + * Unlike _mesa_lookup_vao, this function generates a GL_INVALID_OPERATION + * error if the array object does not exist. It also returns the default + * array object when ctx is a compatibility profile context and id is zero. + */ +struct gl_vertex_array_object * +_mesa_lookup_vao_err(struct gl_context *ctx, GLuint id, const char *caller) +{ + /* The ARB_direct_state_access specification says: + * + * "<vaobj> is [compatibility profile: + * zero, indicating the default vertex array object, or] + * the name of the vertex array object." + */ + if (id == 0) { + if (ctx->API == API_OPENGL_CORE) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(zero is not valid vaobj name in a core profile " + "context)", caller); + return NULL; + } + + return ctx->Array.DefaultVAO; + } else { + struct gl_vertex_array_object *vao; + + if (ctx->Array.LastLookedUpVAO && + ctx->Array.LastLookedUpVAO->Name == id) { + vao = ctx->Array.LastLookedUpVAO; + } else { + vao = (struct gl_vertex_array_object *) + _mesa_HashLookup(ctx->Array.Objects, id); + + /* The ARB_direct_state_access specification says: + * + * "An INVALID_OPERATION error is generated if <vaobj> is not + * [compatibility profile: zero or] the name of an existing + * vertex array object." + */ + if (!vao || !vao->EverBound) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(non-existent vaobj=%u)", caller, id); + return NULL; + } + + _mesa_reference_vao(ctx, &ctx->Array.LastLookedUpVAO, vao); + } + + return vao; + } +} + + +/** * For all the vertex binding points in the array object, unbind any pointers * to any buffer objects (VBOs). * This is done just prior to array object destruction. @@ -200,6 +255,7 @@ init_array(struct gl_context *ctx, array->Enabled = GL_FALSE; array->Normalized = GL_FALSE; array->Integer = GL_FALSE; + array->Doubles = GL_FALSE; array->_ElementSize = size * _mesa_sizeof_type(type); array->VertexBinding = index; @@ -469,6 +525,9 @@ _mesa_DeleteVertexArrays(GLsizei n, const GLuint *ids) /* The ID is immediately freed for re-use */ remove_array_object(ctx, obj); + if (ctx->Array.LastLookedUpVAO == obj) + _mesa_reference_vao(ctx, &ctx->Array.LastLookedUpVAO, NULL); + /* Unreference the array object. * If refcount hits zero, the object will be deleted. */ @@ -480,19 +539,23 @@ _mesa_DeleteVertexArrays(GLsizei n, const GLuint *ids) /** * Generate a set of unique array object IDs and store them in \c arrays. - * Helper for _mesa_GenVertexArrays[APPLE]() functions below. + * Helper for _mesa_GenVertexArrays[APPLE]() and _mesa_CreateVertexArrays() + * below. + * * \param n Number of IDs to generate. * \param arrays Array of \c n locations to store the IDs. - * \param vboOnly Will arrays have to reside in VBOs? + * \param create Indicates that the objects should also be created. + * \param func The name of the GL entry point. */ static void -gen_vertex_arrays(struct gl_context *ctx, GLsizei n, GLuint *arrays) +gen_vertex_arrays(struct gl_context *ctx, GLsizei n, GLuint *arrays, + bool create, const char *func) { GLuint first; GLint i; if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGenVertexArrays"); + _mesa_error(ctx, GL_INVALID_VALUE, "%s(n < 0)", func); return; } @@ -502,16 +565,20 @@ gen_vertex_arrays(struct gl_context *ctx, GLsizei n, GLuint *arrays) first = _mesa_HashFindFreeKeyBlock(ctx->Array.Objects, n); - /* Allocate new, empty array objects and return identifiers */ + /* For the sake of simplicity we create the array objects in both + * the Gen* and Create* cases. The only difference is the value of + * EverBound, which is set to true in the Create* case. + */ for (i = 0; i < n; i++) { struct gl_vertex_array_object *obj; GLuint name = first + i; obj = (*ctx->Driver.NewArrayObject)( ctx, name ); if (!obj) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenVertexArrays"); + _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s", func); return; } + obj->EverBound = create; save_array_object(ctx, obj); arrays[i] = first + i; } @@ -526,7 +593,7 @@ void GLAPIENTRY _mesa_GenVertexArrays(GLsizei n, GLuint *arrays) { GET_CURRENT_CONTEXT(ctx); - gen_vertex_arrays(ctx, n, arrays); + gen_vertex_arrays(ctx, n, arrays, false, "glGenVertexArrays"); } @@ -538,7 +605,27 @@ void GLAPIENTRY _mesa_GenVertexArraysAPPLE(GLsizei n, GLuint *arrays) { GET_CURRENT_CONTEXT(ctx); - gen_vertex_arrays(ctx, n, arrays); + gen_vertex_arrays(ctx, n, arrays, false, "glGenVertexArraysAPPLE"); +} + + +/** + * ARB_direct_state_access + * Generates ID's and creates the array objects. + */ +void GLAPIENTRY +_mesa_CreateVertexArrays(GLsizei n, GLuint *arrays) +{ + GET_CURRENT_CONTEXT(ctx); + + if (!ctx->Extensions.ARB_direct_state_access) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glCreateVertexArrays(GL_ARB_direct_state_access " + "is not supported"); + return; + } + + gen_vertex_arrays(ctx, n, arrays, true, "glCreateVertexArrays"); } @@ -565,3 +652,92 @@ _mesa_IsVertexArray( GLuint id ) return obj->EverBound; } + + +/** + * Sets the element array buffer binding of a vertex array object. + * + * This is the ARB_direct_state_access equivalent of + * glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buffer). + */ +void GLAPIENTRY +_mesa_VertexArrayElementBuffer(GLuint vaobj, GLuint buffer) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_vertex_array_object *vao; + struct gl_buffer_object *bufObj; + + if (!ctx->Extensions.ARB_direct_state_access) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glVertexArrayElementBuffer(GL_ARB_direct_state_access " + "is not supported"); + return; + } + + ASSERT_OUTSIDE_BEGIN_END(ctx); + + /* The GL_ARB_direct_state_access specification says: + * + * "An INVALID_OPERATION error is generated by VertexArrayElementBuffer + * if <vaobj> is not [compatibility profile: zero or] the name of an + * existing vertex array object." + */ + vao =_mesa_lookup_vao_err(ctx, vaobj, "glVertexArrayElementBuffer"); + if (!vao) + return; + + /* The GL_ARB_direct_state_access specification says: + * + * "An INVALID_OPERATION error is generated if <buffer> is not zero or + * the name of an existing buffer object." + */ + if (buffer != 0) + bufObj = _mesa_lookup_bufferobj_err(ctx, buffer, + "glVertexArrayElementBuffer"); + else + bufObj = ctx->Shared->NullBufferObj; + + if (bufObj) + _mesa_reference_buffer_object(ctx, &vao->IndexBufferObj, bufObj); +} + + +void GLAPIENTRY +_mesa_GetVertexArrayiv(GLuint vaobj, GLenum pname, GLint *param) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_vertex_array_object *vao; + + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (!ctx->Extensions.ARB_direct_state_access) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetVertexArrayiv(GL_ARB_direct_state_access " + "is not supported"); + return; + } + + /* The GL_ARB_direct_state_access specification says: + * + * "An INVALID_OPERATION error is generated if <vaobj> is not + * [compatibility profile: zero or] the name of an existing + * vertex array object." + */ + vao =_mesa_lookup_vao_err(ctx, vaobj, "glGetVertexArrayiv"); + if (!vao) + return; + + /* The GL_ARB_direct_state_access specification says: + * + * "An INVALID_ENUM error is generated if <pname> is not + * ELEMENT_ARRAY_BUFFER_BINDING." + */ + if (pname != GL_ELEMENT_ARRAY_BUFFER_BINDING) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetVertexArrayiv(pname != " + "GL_ELEMENT_ARRAY_BUFFER_BINDING)"); + return; + } + + param[0] = vao->IndexBufferObj->Name; +} |