diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-05-01 14:59:34 -0600 |
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committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-05-01 14:59:34 -0600 |
commit | 6e19f82c37191dabcdd882d0edac98a2ca9c11e4 (patch) | |
tree | 3ff9fff45cfc55b1bc4419cc842a043e0d53f688 /src/mesa/main | |
parent | 5f0fa82f68e3f4f7086ed6cf5616ef94820e19ee (diff) |
fix conversion of GLfloat display list IDs
Use floor() to convert to int (per Mark Kildard and the SI).
Also, change translate_id() to return a signed integer since we may be
offsetting from GL_LIST_BASE.
Diffstat (limited to 'src/mesa/main')
-rw-r--r-- | src/mesa/main/dlist.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c index 8d10d8a750..23ede7bb68 100644 --- a/src/mesa/main/dlist.c +++ b/src/mesa/main/dlist.c @@ -611,9 +611,9 @@ destroy_list(GLcontext *ctx, GLuint list) /* - * Translate the nth element of list from type to GLuint. + * Translate the nth element of list from <type> to GLint. */ -static GLuint +static GLint translate_id(GLsizei n, GLenum type, const GLvoid * list) { GLbyte *bptr; @@ -627,37 +627,40 @@ translate_id(GLsizei n, GLenum type, const GLvoid * list) switch (type) { case GL_BYTE: bptr = (GLbyte *) list; - return (GLuint) *(bptr + n); + return (GLint) bptr[n]; case GL_UNSIGNED_BYTE: ubptr = (GLubyte *) list; - return (GLuint) *(ubptr + n); + return (GLint) ubptr[n]; case GL_SHORT: sptr = (GLshort *) list; - return (GLuint) *(sptr + n); + return (GLint) sptr[n]; case GL_UNSIGNED_SHORT: usptr = (GLushort *) list; - return (GLuint) *(usptr + n); + return (GLint) usptr[n]; case GL_INT: iptr = (GLint *) list; - return (GLuint) *(iptr + n); + return iptr[n]; case GL_UNSIGNED_INT: uiptr = (GLuint *) list; - return (GLuint) *(uiptr + n); + return (GLint) uiptr[n]; case GL_FLOAT: fptr = (GLfloat *) list; - return (GLuint) *(fptr + n); + return (GLint) FLOORF(fptr[n]); case GL_2_BYTES: ubptr = ((GLubyte *) list) + 2 * n; - return (GLuint) *ubptr * 256 + (GLuint) * (ubptr + 1); + return (GLint) ubptr[0] * 256 + + (GLint) ubptr[1]; case GL_3_BYTES: ubptr = ((GLubyte *) list) + 3 * n; - return (GLuint) * ubptr * 65536 - + (GLuint) *(ubptr + 1) * 256 + (GLuint) * (ubptr + 2); + return (GLint) ubptr[0] * 65536 + + (GLint) ubptr[1] * 256 + + (GLint) ubptr[2]; case GL_4_BYTES: ubptr = ((GLubyte *) list) + 4 * n; - return (GLuint) *ubptr * 16777216 - + (GLuint) *(ubptr + 1) * 65536 - + (GLuint) *(ubptr + 2) * 256 + (GLuint) * (ubptr + 3); + return (GLint) ubptr[0] * 16777216 + + (GLint) ubptr[1] * 65536 + + (GLint) ubptr[2] * 256 + + (GLint) ubptr[3]; default: return 0; } @@ -992,10 +995,10 @@ _mesa_save_CallLists(GLsizei n, GLenum type, const GLvoid * lists) } for (i = 0; i < n; i++) { - GLuint list = translate_id(i, type, lists); + GLint list = translate_id(i, type, lists); Node *n = ALLOC_INSTRUCTION(ctx, OPCODE_CALL_LIST_OFFSET, 2); if (n) { - n[1].ui = list; + n[1].i = list; n[2].b = typeErrorFlag; } } @@ -5774,7 +5777,8 @@ execute_list(GLcontext *ctx, GLuint list) _mesa_error(ctx, GL_INVALID_ENUM, "glCallLists(type)"); } else if (ctx->ListState.CallDepth < MAX_LIST_NESTING) { - execute_list(ctx, ctx->List.ListBase + n[1].ui); + GLuint list = (GLuint) (ctx->List.ListBase + n[1].i); + execute_list(ctx, list); } break; case OPCODE_CLEAR: @@ -6822,7 +6826,6 @@ void GLAPIENTRY _mesa_CallLists(GLsizei n, GLenum type, const GLvoid * lists) { GET_CURRENT_CONTEXT(ctx); - GLuint list; GLint i; GLboolean save_compile_flag; @@ -6854,8 +6857,8 @@ _mesa_CallLists(GLsizei n, GLenum type, const GLvoid * lists) ctx->CompileFlag = GL_FALSE; for (i = 0; i < n; i++) { - list = translate_id(i, type, lists); - execute_list(ctx, ctx->List.ListBase + list); + GLuint list = (GLuint) (ctx->List.ListBase + translate_id(i, type, lists)); + execute_list(ctx, list); } ctx->CompileFlag = save_compile_flag; |