[Mesa-dev] [PATCH 04/11] mesa: Add missing error checks to GetProgramInfoLog, GetShaderInfoLog and GetProgramiv

[Eduardo Lima Mitev]

Fixes 3 dEQP tests:
* dEQP-GLES3.functional.negative_api.state.get_program_info_log
* dEQP-GLES3.functional.negative_api.state.get_shader_info_log
* dEQP-GLES3.functional.negative_api.state.get_programiv
---
 src/mesa/main/shaderapi.c | 84 ++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 79 insertions(+), 5 deletions(-)

diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index 52eab46..9dc03c0 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -546,7 +546,22 @@ get_programiv(struct gl_context *ctx, GLuint program, GLenum pname,
       || _mesa_is_gles3(ctx);
 
    if (!shProg) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramiv(program)");
+      /* Section 6.1.12 Shader and Program Queries, page 234 of the
+       * OpenGL ES 3.0.4 spec states:
+       *
+       *     "These commands will generate the error INVALID_VALUE if the
+       *     provided name is not the name of either a shader or program object,
+       *     and INVALID_OPERATION if the provided name identifies an object of
+       *     the other type."
+       *
+       * Also, Section 7.13. SHADER, PROGRAM, AND PROGRAM PIPELINE QUERIES,
+       * page 161 of the OpenGL 4.5 spec states:
+       *
+       *     "An INVALID_OPERATION error is generated if prgoram is the name of a
+       *      shader object."
+       */
+      struct gl_shader *sh = _mesa_lookup_shader(ctx, program);
+      _mesa_error(ctx, sh ? GL_INVALID_OPERATION : GL_INVALID_VALUE, "glGetProgramiv(program)");
       return;
    }
 
@@ -764,11 +779,40 @@ static void
 get_program_info_log(struct gl_context *ctx, GLuint program, GLsizei bufSize,
                      GLsizei *length, GLchar *infoLog)
 {
-   struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, program);
+   struct gl_shader_program *shProg;
+
+   /* Section 2.5 GL Errors (page 18) of the OpenGL ES 3.0.4 spec and
+    * section 2.3.1 (Errors) of the OpenGL 4.5 spec say:
+    *
+    *     "If a negative number is provided where an argument of type sizei or
+    *     sizeiptr is specified, an INVALID_VALUE error is generated."
+    */
+   if (bufSize < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramInfoLog(bufSize < 0)");
+      return;
+   }
+
+   shProg = _mesa_lookup_shader_program(ctx, program);
    if (!shProg) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetProgramInfoLog(program)");
+      /* Section 6.1.12 Shader and Program Queries, page 234 of the
+       * OpenGL ES 3.0.4 spec states:
+       *
+       *     "These commands will generate the error INVALID_VALUE if the
+       *     provided name is not the name of either a shader or program object,
+       *     and INVALID_OPERATION if the provided name identifies an object of
+       *     the other type."
+       *
+       * Also, Section 7.13. SHADER, PROGRAM, AND PROGRAM PIPELINE QUERIES,
+       * page 161 of the OpenGL 4.5 spec states:
+       *
+       *     "An INVALID_OPERATION error is generated if prgoram is the name of a
+       *      shader object."
+       */
+      struct gl_shader *sh = _mesa_lookup_shader(ctx, program);
+      _mesa_error(ctx, sh ? GL_INVALID_OPERATION : GL_INVALID_VALUE, "glGetProgramInfoLog(program)");
       return;
    }
+
    _mesa_copy_string(infoLog, bufSize, length, shProg->InfoLog);
 }
 
@@ -777,11 +821,41 @@ static void
 get_shader_info_log(struct gl_context *ctx, GLuint shader, GLsizei bufSize,
                     GLsizei *length, GLchar *infoLog)
 {
-   struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
+   struct gl_shader *sh;
+
+   /* Section 2.5 GL Errors (page 18) of the OpenGL ES 3.0.4 spec and
+    * section 2.3.1 (Errors) of the OpenGL 4.5 spec say:
+    *
+    *     "If a negative number is provided where an argument of type sizei or
+    *     sizeiptr is specified, an INVALID_VALUE error is generated."
+    */
+   if (bufSize < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderInfoLog(bufSize < 0)");
+      return;
+   }
+
+   sh = _mesa_lookup_shader(ctx, shader);
    if (!sh) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderInfoLog(shader)");
+      struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, shader);
+      /* Section 6.1.12 Shader and Program Queries, page 234 of the
+       * OpenGL ES 3.0.4 spec states:
+       *
+       *     "These commands will generate the error INVALID_VALUE if the
+       *     provided name is not the name of either a shader or program object,
+       *     and INVALID_OPERATION if the provided name identifies an object of
+       *     the other type."
+       *
+       * Also, Section 7.13. SHADER, PROGRAM, AND PROGRAM PIPELINE QUERIES,
+       * page 161 of the OpenGL 4.5 spec states:
+       *
+       *     "An INVALID_OPERATION error is generated if shader is the name of a
+       *      program object."
+       */
+      _mesa_error(ctx, shProg ? GL_INVALID_OPERATION : GL_INVALID_VALUE,
+                  "glGetShaderInfoLog(shader)");
       return;
    }
+
    _mesa_copy_string(infoLog, bufSize, length, sh->InfoLog);
 }
 
-- 
2.1.3