| /* |
| * Copyright © 2012 Intel Corporation |
| * |
| * 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 |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| */ |
| |
| #include "glthread_marshal.h" |
| #include "dispatch.h" |
| |
| struct marshal_cmd_ShaderSource |
| { |
| struct marshal_cmd_base cmd_base; |
| GLuint shader; |
| GLsizei count; |
| /* Followed by GLint length[count], then the contents of all strings, |
| * concatenated. |
| */ |
| }; |
| |
| |
| void |
| _mesa_unmarshal_ShaderSource(struct gl_context *ctx, |
| const struct marshal_cmd_ShaderSource *cmd) |
| { |
| const GLint *cmd_length = (const GLint *) (cmd + 1); |
| const GLchar *cmd_strings = (const GLchar *) (cmd_length + cmd->count); |
| /* TODO: how to deal with malloc failure? */ |
| const GLchar * *string = malloc(cmd->count * sizeof(const GLchar *)); |
| int i; |
| |
| for (i = 0; i < cmd->count; ++i) { |
| string[i] = cmd_strings; |
| cmd_strings += cmd_length[i]; |
| } |
| CALL_ShaderSource(ctx->CurrentServerDispatch, |
| (cmd->shader, cmd->count, string, cmd_length)); |
| free((void *)string); |
| } |
| |
| |
| static size_t |
| measure_ShaderSource_strings(GLsizei count, const GLchar * const *string, |
| const GLint *length_in, GLint *length_out) |
| { |
| int i; |
| size_t total_string_length = 0; |
| |
| for (i = 0; i < count; ++i) { |
| if (length_in == NULL || length_in[i] < 0) { |
| if (string[i]) |
| length_out[i] = strlen(string[i]); |
| } else { |
| length_out[i] = length_in[i]; |
| } |
| total_string_length += length_out[i]; |
| } |
| return total_string_length; |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_marshal_ShaderSource(GLuint shader, GLsizei count, |
| const GLchar * const *string, const GLint *length) |
| { |
| /* TODO: how to report an error if count < 0? */ |
| |
| GET_CURRENT_CONTEXT(ctx); |
| /* TODO: how to deal with malloc failure? */ |
| const size_t fixed_cmd_size = sizeof(struct marshal_cmd_ShaderSource); |
| STATIC_ASSERT(sizeof(struct marshal_cmd_ShaderSource) % sizeof(GLint) == 0); |
| size_t length_size = count * sizeof(GLint); |
| GLint *length_tmp = malloc(length_size); |
| size_t total_string_length = |
| measure_ShaderSource_strings(count, string, length, length_tmp); |
| size_t total_cmd_size = fixed_cmd_size + length_size + total_string_length; |
| |
| if (total_cmd_size <= MARSHAL_MAX_CMD_SIZE && count > 0) { |
| struct marshal_cmd_ShaderSource *cmd = |
| _mesa_glthread_allocate_command(ctx, DISPATCH_CMD_ShaderSource, |
| total_cmd_size); |
| GLint *cmd_length = (GLint *) (cmd + 1); |
| GLchar *cmd_strings = (GLchar *) (cmd_length + count); |
| int i; |
| |
| cmd->shader = shader; |
| cmd->count = count; |
| memcpy(cmd_length, length_tmp, length_size); |
| for (i = 0; i < count; ++i) { |
| memcpy(cmd_strings, string[i], cmd_length[i]); |
| cmd_strings += cmd_length[i]; |
| } |
| } else { |
| _mesa_glthread_finish(ctx); |
| CALL_ShaderSource(ctx->CurrentServerDispatch, |
| (shader, count, string, length_tmp)); |
| } |
| free(length_tmp); |
| } |